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by brian
clean slate |
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/* Copyright (C) 2005 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#include "mysql_priv.h" |
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#include <my_pthread.h> |
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#include <my_getopt.h> |
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#define REPORT_TO_LOG 1
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#define REPORT_TO_USER 2
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#ifdef DBUG_OFF
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#define plugin_ref_to_int(A) A
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#define plugin_int_to_ref(A) A
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#else
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#define plugin_ref_to_int(A) (A ? A[0] : NULL)
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#define plugin_int_to_ref(A) &(A)
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#endif
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extern struct st_mysql_plugin *mysqld_builtins[]; |
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char *opt_plugin_load= NULL; |
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char *opt_plugin_dir_ptr; |
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char opt_plugin_dir[FN_REFLEN]; |
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/*
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When you ad a new plugin type, add both a string and make sure that the
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init and deinit array are correctly updated.
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*/
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const LEX_STRING plugin_type_names[MYSQL_MAX_PLUGIN_TYPE_NUM]= |
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{
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{ C_STRING_WITH_LEN("UDF") }, |
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{ C_STRING_WITH_LEN("STORAGE ENGINE") }, |
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{ C_STRING_WITH_LEN("FTPARSER") }, |
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{ C_STRING_WITH_LEN("DAEMON") }, |
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{ C_STRING_WITH_LEN("INFORMATION SCHEMA") }, |
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{ C_STRING_WITH_LEN("AUDIT") } |
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};
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extern int initialize_schema_table(st_plugin_int *plugin); |
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extern int finalize_schema_table(st_plugin_int *plugin); |
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/*
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The number of elements in both plugin_type_initialize and
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plugin_type_deinitialize should equal to the number of plugins
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defined.
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*/
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plugin_type_init plugin_type_initialize[MYSQL_MAX_PLUGIN_TYPE_NUM]= |
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{
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0,ha_initialize_handlerton,0,0,initialize_schema_table, |
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0
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};
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plugin_type_init plugin_type_deinitialize[MYSQL_MAX_PLUGIN_TYPE_NUM]= |
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{
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0,ha_finalize_handlerton,0,0,finalize_schema_table, |
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0
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};
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#ifdef HAVE_DLOPEN
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static const char *plugin_interface_version_sym= |
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"_mysql_plugin_interface_version_"; |
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static const char *sizeof_st_plugin_sym= |
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"_mysql_sizeof_struct_st_plugin_"; |
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static const char *plugin_declarations_sym= "_mysql_plugin_declarations_"; |
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static int min_plugin_interface_version= MYSQL_PLUGIN_INTERFACE_VERSION & ~0xFF; |
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#endif
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/* Note that 'int version' must be the first field of every plugin
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sub-structure (plugin->info).
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*/
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static int min_plugin_info_interface_version[MYSQL_MAX_PLUGIN_TYPE_NUM]= |
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{
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0x0000, |
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MYSQL_HANDLERTON_INTERFACE_VERSION, |
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MYSQL_FTPARSER_INTERFACE_VERSION, |
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MYSQL_DAEMON_INTERFACE_VERSION, |
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MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION, |
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MYSQL_AUDIT_INTERFACE_VERSION
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};
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static int cur_plugin_info_interface_version[MYSQL_MAX_PLUGIN_TYPE_NUM]= |
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{
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0x0000, /* UDF: not implemented */ |
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MYSQL_HANDLERTON_INTERFACE_VERSION, |
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MYSQL_FTPARSER_INTERFACE_VERSION, |
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MYSQL_DAEMON_INTERFACE_VERSION, |
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MYSQL_INFORMATION_SCHEMA_INTERFACE_VERSION, |
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MYSQL_AUDIT_INTERFACE_VERSION
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};
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static bool initialized= 0; |
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static DYNAMIC_ARRAY plugin_dl_array; |
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static DYNAMIC_ARRAY plugin_array; |
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static HASH plugin_hash[MYSQL_MAX_PLUGIN_TYPE_NUM]; |
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static bool reap_needed= false; |
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static int plugin_array_version=0; |
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/*
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write-lock on LOCK_system_variables_hash is required before modifying
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the following variables/structures
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*/
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static MEM_ROOT plugin_mem_root; |
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static uint global_variables_dynamic_size= 0; |
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static HASH bookmark_hash; |
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/*
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hidden part of opaque value passed to variable check functions.
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Used to provide a object-like structure to non C++ consumers.
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*/
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struct st_item_value_holder : public st_mysql_value |
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{
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Item *item; |
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};
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/*
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stored in bookmark_hash, this structure is never removed from the
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hash and is used to mark a single offset for a thd local variable
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even if plugins have been uninstalled and reinstalled, repeatedly.
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This structure is allocated from plugin_mem_root.
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The key format is as follows:
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1 byte - variable type code
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name_len bytes - variable name
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'\0' - end of key
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*/
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struct st_bookmark |
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{
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uint name_len; |
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int offset; |
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uint version; |
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char key[1]; |
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};
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/*
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skeleton of a plugin variable - portion of structure common to all.
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*/
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struct st_mysql_sys_var |
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{
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MYSQL_PLUGIN_VAR_HEADER; |
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};
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/*
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sys_var class for access to all plugin variables visible to the user
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*/
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class sys_var_pluginvar: public sys_var |
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{
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public: |
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struct st_plugin_int *plugin; |
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struct st_mysql_sys_var *plugin_var; |
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static void *operator new(size_t size, MEM_ROOT *mem_root) |
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{ return (void*) alloc_root(mem_root, (uint) size); } |
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static void operator delete(void *ptr_arg,size_t size) |
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{ TRASH(ptr_arg, size); } |
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sys_var_pluginvar(const char *name_arg, |
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struct st_mysql_sys_var *plugin_var_arg) |
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:sys_var(name_arg), plugin_var(plugin_var_arg) {} |
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sys_var_pluginvar *cast_pluginvar() { return this; } |
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bool is_readonly() const { return plugin_var->flags & PLUGIN_VAR_READONLY; } |
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bool check_type(enum_var_type type) |
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{ return !(plugin_var->flags & PLUGIN_VAR_THDLOCAL) && type != OPT_GLOBAL; } |
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bool check_update_type(Item_result type); |
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SHOW_TYPE show_type(); |
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uchar* real_value_ptr(THD *thd, enum_var_type type); |
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TYPELIB* plugin_var_typelib(void); |
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uchar* value_ptr(THD *thd, enum_var_type type, LEX_STRING *base); |
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bool check(THD *thd, set_var *var); |
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bool check_default(enum_var_type type) { return is_readonly(); } |
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void set_default(THD *thd, enum_var_type type); |
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bool update(THD *thd, set_var *var); |
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};
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/* prototypes */
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static bool plugin_load_list(MEM_ROOT *tmp_root, int *argc, char **argv, |
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const char *list); |
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static int test_plugin_options(MEM_ROOT *, struct st_plugin_int *, |
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int *, char **, my_bool); |
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static bool register_builtin(struct st_mysql_plugin *, struct st_plugin_int *, |
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struct st_plugin_int **); |
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static void unlock_variables(THD *thd, struct system_variables *vars); |
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static void cleanup_variables(THD *thd, struct system_variables *vars); |
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static void plugin_vars_free_values(sys_var *vars); |
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static void plugin_opt_set_limits(struct my_option *options, |
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const struct st_mysql_sys_var *opt); |
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#define my_intern_plugin_lock(A,B) intern_plugin_lock(A,B CALLER_INFO)
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#define my_intern_plugin_lock_ci(A,B) intern_plugin_lock(A,B ORIG_CALLER_INFO)
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static plugin_ref intern_plugin_lock(LEX *lex, plugin_ref plugin |
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CALLER_INFO_PROTO); |
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static void intern_plugin_unlock(LEX *lex, plugin_ref plugin); |
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static void reap_plugins(void); |
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/* declared in set_var.cc */
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extern sys_var *intern_find_sys_var(const char *str, uint length, bool no_error); |
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extern bool throw_bounds_warning(THD *thd, bool fixed, bool unsignd, |
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const char *name, longlong val); |
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/****************************************************************************
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Value type thunks, allows the C world to play in the C++ world
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****************************************************************************/
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static int item_value_type(struct st_mysql_value *value) |
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{
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switch (((st_item_value_holder*)value)->item->result_type()) { |
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case INT_RESULT: |
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return MYSQL_VALUE_TYPE_INT; |
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case REAL_RESULT: |
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return MYSQL_VALUE_TYPE_REAL; |
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default: |
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return MYSQL_VALUE_TYPE_STRING; |
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}
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}
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static const char *item_val_str(struct st_mysql_value *value, |
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char *buffer, int *length) |
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{
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String str(buffer, *length, system_charset_info), *res; |
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if (!(res= ((st_item_value_holder*)value)->item->val_str(&str))) |
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return NULL; |
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*length= res->length(); |
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if (res->c_ptr_quick() == buffer) |
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return buffer; |
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/*
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Lets be nice and create a temporary string since the
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buffer was too small
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*/
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return current_thd->strmake(res->c_ptr_quick(), res->length()); |
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}
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static int item_val_int(struct st_mysql_value *value, long long *buf) |
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{
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Item *item= ((st_item_value_holder*)value)->item; |
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*buf= item->val_int(); |
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if (item->is_null()) |
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return 1; |
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return 0; |
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}
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static int item_val_real(struct st_mysql_value *value, double *buf) |
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{
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Item *item= ((st_item_value_holder*)value)->item; |
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*buf= item->val_real(); |
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if (item->is_null()) |
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return 1; |
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return 0; |
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}
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/****************************************************************************
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Plugin support code
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****************************************************************************/
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#ifdef HAVE_DLOPEN
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static struct st_plugin_dl *plugin_dl_find(const LEX_STRING *dl) |
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{
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uint i; |
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struct st_plugin_dl *tmp; |
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DBUG_ENTER("plugin_dl_find"); |
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for (i= 0; i < plugin_dl_array.elements; i++) |
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{
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tmp= *dynamic_element(&plugin_dl_array, i, struct st_plugin_dl **); |
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if (tmp->ref_count && |
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! my_strnncoll(files_charset_info, |
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(const uchar *)dl->str, dl->length, |
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(const uchar *)tmp->dl.str, tmp->dl.length)) |
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DBUG_RETURN(tmp); |
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}
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DBUG_RETURN(0); |
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}
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static st_plugin_dl *plugin_dl_insert_or_reuse(struct st_plugin_dl *plugin_dl) |
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{
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uint i; |
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struct st_plugin_dl *tmp; |
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DBUG_ENTER("plugin_dl_insert_or_reuse"); |
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for (i= 0; i < plugin_dl_array.elements; i++) |
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{
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tmp= *dynamic_element(&plugin_dl_array, i, struct st_plugin_dl **); |
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if (! tmp->ref_count) |
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{
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memcpy(tmp, plugin_dl, sizeof(struct st_plugin_dl)); |
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DBUG_RETURN(tmp); |
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}
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}
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if (insert_dynamic(&plugin_dl_array, (uchar*)&plugin_dl)) |
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DBUG_RETURN(0); |
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tmp= *dynamic_element(&plugin_dl_array, plugin_dl_array.elements - 1, |
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struct st_plugin_dl **)= |
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(struct st_plugin_dl *) memdup_root(&plugin_mem_root, (uchar*)plugin_dl, |
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sizeof(struct st_plugin_dl)); |
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DBUG_RETURN(tmp); |
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}
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#endif /* HAVE_DLOPEN */ |
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static inline void free_plugin_mem(struct st_plugin_dl *p) |
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{
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#ifdef HAVE_DLOPEN
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if (p->handle) |
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dlclose(p->handle); |
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#endif
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my_free(p->dl.str, MYF(MY_ALLOW_ZERO_PTR)); |
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if (p->version != MYSQL_PLUGIN_INTERFACE_VERSION) |
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my_free((uchar*)p->plugins, MYF(MY_ALLOW_ZERO_PTR)); |
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}
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328 |
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static st_plugin_dl *plugin_dl_add(const LEX_STRING *dl, int report) |
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{
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#ifdef HAVE_DLOPEN
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char dlpath[FN_REFLEN]; |
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uint plugin_dir_len, dummy_errors, dlpathlen; |
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struct st_plugin_dl *tmp, plugin_dl; |
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void *sym; |
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DBUG_ENTER("plugin_dl_add"); |
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plugin_dir_len= strlen(opt_plugin_dir); |
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338 |
/*
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Ensure that the dll doesn't have a path.
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This is done to ensure that only approved libraries from the
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plugin directory are used (to make this even remotely secure).
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*/
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if (my_strchr(files_charset_info, dl->str, dl->str + dl->length, FN_LIBCHAR) || |
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check_string_char_length((LEX_STRING *) dl, "", NAME_CHAR_LEN, |
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system_charset_info, 1) || |
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plugin_dir_len + dl->length + 1 >= FN_REFLEN) |
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{
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if (report & REPORT_TO_USER) |
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my_error(ER_UDF_NO_PATHS, MYF(0)); |
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if (report & REPORT_TO_LOG) |
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sql_print_error(ER(ER_UDF_NO_PATHS)); |
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DBUG_RETURN(0); |
|
353 |
}
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354 |
/* If this dll is already loaded just increase ref_count. */
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355 |
if ((tmp= plugin_dl_find(dl))) |
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{
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tmp->ref_count++; |
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358 |
DBUG_RETURN(tmp); |
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359 |
}
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360 |
bzero(&plugin_dl, sizeof(plugin_dl)); |
|
361 |
/* Compile dll path */
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362 |
dlpathlen= |
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363 |
strxnmov(dlpath, sizeof(dlpath) - 1, opt_plugin_dir, "/", dl->str, NullS) - |
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dlpath; |
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plugin_dl.ref_count= 1; |
|
366 |
/* Open new dll handle */
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if (!(plugin_dl.handle= dlopen(dlpath, RTLD_NOW))) |
|
368 |
{
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369 |
const char *errmsg=dlerror(); |
|
370 |
if (!strncmp(dlpath, errmsg, dlpathlen)) |
|
371 |
{ // if errmsg starts from dlpath, trim this prefix. |
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errmsg+=dlpathlen; |
|
373 |
if (*errmsg == ':') errmsg++; |
|
374 |
if (*errmsg == ' ') errmsg++; |
|
375 |
}
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|
376 |
if (report & REPORT_TO_USER) |
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my_error(ER_CANT_OPEN_LIBRARY, MYF(0), dlpath, errno, errmsg); |
|
378 |
if (report & REPORT_TO_LOG) |
|
379 |
sql_print_error(ER(ER_CANT_OPEN_LIBRARY), dlpath, errno, errmsg); |
|
380 |
DBUG_RETURN(0); |
|
381 |
}
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|
382 |
/* Determine interface version */
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|
383 |
if (!(sym= dlsym(plugin_dl.handle, plugin_interface_version_sym))) |
|
384 |
{
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|
385 |
free_plugin_mem(&plugin_dl); |
|
386 |
if (report & REPORT_TO_USER) |
|
387 |
my_error(ER_CANT_FIND_DL_ENTRY, MYF(0), plugin_interface_version_sym); |
|
388 |
if (report & REPORT_TO_LOG) |
|
389 |
sql_print_error(ER(ER_CANT_FIND_DL_ENTRY), plugin_interface_version_sym); |
|
390 |
DBUG_RETURN(0); |
|
391 |
}
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|
392 |
plugin_dl.version= *(int *)sym; |
|
393 |
/* Versioning */
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|
394 |
if (plugin_dl.version < min_plugin_interface_version || |
|
395 |
(plugin_dl.version >> 8) > (MYSQL_PLUGIN_INTERFACE_VERSION >> 8)) |
|
396 |
{
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|
397 |
free_plugin_mem(&plugin_dl); |
|
398 |
if (report & REPORT_TO_USER) |
|
399 |
my_error(ER_CANT_OPEN_LIBRARY, MYF(0), dlpath, 0, |
|
400 |
"plugin interface version mismatch"); |
|
401 |
if (report & REPORT_TO_LOG) |
|
402 |
sql_print_error(ER(ER_CANT_OPEN_LIBRARY), dlpath, 0, |
|
403 |
"plugin interface version mismatch"); |
|
404 |
DBUG_RETURN(0); |
|
405 |
}
|
|
406 |
/* Find plugin declarations */
|
|
407 |
if (!(sym= dlsym(plugin_dl.handle, plugin_declarations_sym))) |
|
408 |
{
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|
409 |
free_plugin_mem(&plugin_dl); |
|
410 |
if (report & REPORT_TO_USER) |
|
411 |
my_error(ER_CANT_FIND_DL_ENTRY, MYF(0), plugin_declarations_sym); |
|
412 |
if (report & REPORT_TO_LOG) |
|
413 |
sql_print_error(ER(ER_CANT_FIND_DL_ENTRY), plugin_declarations_sym); |
|
414 |
DBUG_RETURN(0); |
|
415 |
}
|
|
416 |
||
417 |
if (plugin_dl.version != MYSQL_PLUGIN_INTERFACE_VERSION) |
|
418 |
{
|
|
419 |
int i; |
|
420 |
uint sizeof_st_plugin; |
|
421 |
struct st_mysql_plugin *old, *cur; |
|
422 |
char *ptr= (char *)sym; |
|
423 |
||
424 |
if ((sym= dlsym(plugin_dl.handle, sizeof_st_plugin_sym))) |
|
425 |
sizeof_st_plugin= *(int *)sym; |
|
426 |
else
|
|
427 |
{
|
|
428 |
#ifdef ERROR_ON_NO_SIZEOF_PLUGIN_SYMBOL
|
|
429 |
free_plugin_mem(&plugin_dl); |
|
430 |
if (report & REPORT_TO_USER) |
|
431 |
my_error(ER_CANT_FIND_DL_ENTRY, MYF(0), sizeof_st_plugin_sym); |
|
432 |
if (report & REPORT_TO_LOG) |
|
433 |
sql_print_error(ER(ER_CANT_FIND_DL_ENTRY), sizeof_st_plugin_sym); |
|
434 |
DBUG_RETURN(0); |
|
435 |
#else
|
|
436 |
/*
|
|
437 |
When the following assert starts failing, we'll have to switch
|
|
438 |
to the upper branch of the #ifdef
|
|
439 |
*/
|
|
440 |
DBUG_ASSERT(min_plugin_interface_version == 0); |
|
441 |
sizeof_st_plugin= (int)offsetof(struct st_mysql_plugin, version); |
|
442 |
#endif
|
|
443 |
}
|
|
444 |
||
445 |
for (i= 0; |
|
446 |
((struct st_mysql_plugin *)(ptr+i*sizeof_st_plugin))->info; |
|
447 |
i++) |
|
448 |
/* no op */; |
|
449 |
||
450 |
cur= (struct st_mysql_plugin*) |
|
451 |
my_malloc(i*sizeof(struct st_mysql_plugin), MYF(MY_ZEROFILL|MY_WME)); |
|
452 |
if (!cur) |
|
453 |
{
|
|
454 |
free_plugin_mem(&plugin_dl); |
|
455 |
if (report & REPORT_TO_USER) |
|
456 |
my_error(ER_OUTOFMEMORY, MYF(0), plugin_dl.dl.length); |
|
457 |
if (report & REPORT_TO_LOG) |
|
458 |
sql_print_error(ER(ER_OUTOFMEMORY), plugin_dl.dl.length); |
|
459 |
DBUG_RETURN(0); |
|
460 |
}
|
|
461 |
/*
|
|
462 |
All st_plugin fields not initialized in the plugin explicitly, are
|
|
463 |
set to 0. It matches C standard behaviour for struct initializers that
|
|
464 |
have less values than the struct definition.
|
|
465 |
*/
|
|
466 |
for (i=0; |
|
467 |
(old=(struct st_mysql_plugin *)(ptr+i*sizeof_st_plugin))->info; |
|
468 |
i++) |
|
469 |
memcpy(cur+i, old, min(sizeof(cur[i]), sizeof_st_plugin)); |
|
470 |
||
471 |
sym= cur; |
|
472 |
}
|
|
473 |
plugin_dl.plugins= (struct st_mysql_plugin *)sym; |
|
474 |
||
475 |
/* Duplicate and convert dll name */
|
|
476 |
plugin_dl.dl.length= dl->length * files_charset_info->mbmaxlen + 1; |
|
477 |
if (! (plugin_dl.dl.str= (char*) my_malloc(plugin_dl.dl.length, MYF(0)))) |
|
478 |
{
|
|
479 |
free_plugin_mem(&plugin_dl); |
|
480 |
if (report & REPORT_TO_USER) |
|
481 |
my_error(ER_OUTOFMEMORY, MYF(0), plugin_dl.dl.length); |
|
482 |
if (report & REPORT_TO_LOG) |
|
483 |
sql_print_error(ER(ER_OUTOFMEMORY), plugin_dl.dl.length); |
|
484 |
DBUG_RETURN(0); |
|
485 |
}
|
|
486 |
plugin_dl.dl.length= copy_and_convert(plugin_dl.dl.str, plugin_dl.dl.length, |
|
487 |
files_charset_info, dl->str, dl->length, system_charset_info, |
|
488 |
&dummy_errors); |
|
489 |
plugin_dl.dl.str[plugin_dl.dl.length]= 0; |
|
490 |
/* Add this dll to array */
|
|
491 |
if (! (tmp= plugin_dl_insert_or_reuse(&plugin_dl))) |
|
492 |
{
|
|
493 |
free_plugin_mem(&plugin_dl); |
|
494 |
if (report & REPORT_TO_USER) |
|
495 |
my_error(ER_OUTOFMEMORY, MYF(0), sizeof(struct st_plugin_dl)); |
|
496 |
if (report & REPORT_TO_LOG) |
|
497 |
sql_print_error(ER(ER_OUTOFMEMORY), sizeof(struct st_plugin_dl)); |
|
498 |
DBUG_RETURN(0); |
|
499 |
}
|
|
500 |
DBUG_RETURN(tmp); |
|
501 |
#else
|
|
502 |
DBUG_ENTER("plugin_dl_add"); |
|
503 |
if (report & REPORT_TO_USER) |
|
504 |
my_error(ER_FEATURE_DISABLED, MYF(0), "plugin", "HAVE_DLOPEN"); |
|
505 |
if (report & REPORT_TO_LOG) |
|
506 |
sql_print_error(ER(ER_FEATURE_DISABLED), "plugin", "HAVE_DLOPEN"); |
|
507 |
DBUG_RETURN(0); |
|
508 |
#endif
|
|
509 |
}
|
|
510 |
||
511 |
||
512 |
static void plugin_dl_del(const LEX_STRING *dl) |
|
513 |
{
|
|
514 |
#ifdef HAVE_DLOPEN
|
|
515 |
uint i; |
|
516 |
DBUG_ENTER("plugin_dl_del"); |
|
517 |
||
518 |
for (i= 0; i < plugin_dl_array.elements; i++) |
|
519 |
{
|
|
520 |
struct st_plugin_dl *tmp= *dynamic_element(&plugin_dl_array, i, |
|
521 |
struct st_plugin_dl **); |
|
522 |
if (tmp->ref_count && |
|
523 |
! my_strnncoll(files_charset_info, |
|
524 |
(const uchar *)dl->str, dl->length, |
|
525 |
(const uchar *)tmp->dl.str, tmp->dl.length)) |
|
526 |
{
|
|
527 |
/* Do not remove this element, unless no other plugin uses this dll. */
|
|
528 |
if (! --tmp->ref_count) |
|
529 |
{
|
|
530 |
free_plugin_mem(tmp); |
|
531 |
bzero(tmp, sizeof(struct st_plugin_dl)); |
|
532 |
}
|
|
533 |
break; |
|
534 |
}
|
|
535 |
}
|
|
536 |
DBUG_VOID_RETURN; |
|
537 |
#endif
|
|
538 |
}
|
|
539 |
||
540 |
||
541 |
static struct st_plugin_int *plugin_find_internal(const LEX_STRING *name, int type) |
|
542 |
{
|
|
543 |
uint i; |
|
544 |
DBUG_ENTER("plugin_find_internal"); |
|
545 |
if (! initialized) |
|
546 |
DBUG_RETURN(0); |
|
547 |
||
548 |
if (type == MYSQL_ANY_PLUGIN) |
|
549 |
{
|
|
550 |
for (i= 0; i < MYSQL_MAX_PLUGIN_TYPE_NUM; i++) |
|
551 |
{
|
|
552 |
struct st_plugin_int *plugin= (st_plugin_int *) |
|
553 |
hash_search(&plugin_hash[i], (const uchar *)name->str, name->length); |
|
554 |
if (plugin) |
|
555 |
DBUG_RETURN(plugin); |
|
556 |
}
|
|
557 |
}
|
|
558 |
else
|
|
559 |
DBUG_RETURN((st_plugin_int *) |
|
560 |
hash_search(&plugin_hash[type], (const uchar *)name->str, name->length)); |
|
561 |
DBUG_RETURN(0); |
|
562 |
}
|
|
563 |
||
564 |
||
565 |
static SHOW_COMP_OPTION plugin_status(const LEX_STRING *name, int type) |
|
566 |
{
|
|
567 |
SHOW_COMP_OPTION rc= SHOW_OPTION_NO; |
|
568 |
struct st_plugin_int *plugin; |
|
569 |
DBUG_ENTER("plugin_is_ready"); |
|
570 |
if ((plugin= plugin_find_internal(name, type))) |
|
571 |
{
|
|
572 |
rc= SHOW_OPTION_DISABLED; |
|
573 |
if (plugin->state == PLUGIN_IS_READY) |
|
574 |
rc= SHOW_OPTION_YES; |
|
575 |
}
|
|
576 |
DBUG_RETURN(rc); |
|
577 |
}
|
|
578 |
||
579 |
||
580 |
bool plugin_is_ready(const LEX_STRING *name, int type) |
|
581 |
{
|
|
582 |
bool rc= FALSE; |
|
583 |
if (plugin_status(name, type) == SHOW_OPTION_YES) |
|
584 |
rc= TRUE; |
|
585 |
return rc; |
|
586 |
}
|
|
587 |
||
588 |
||
589 |
SHOW_COMP_OPTION sys_var_have_plugin::get_option() |
|
590 |
{
|
|
591 |
LEX_STRING plugin_name= { (char *) plugin_name_str, plugin_name_len }; |
|
592 |
return plugin_status(&plugin_name, plugin_type); |
|
593 |
}
|
|
594 |
||
595 |
||
596 |
static plugin_ref intern_plugin_lock(LEX *lex, plugin_ref rc CALLER_INFO_PROTO) |
|
597 |
{
|
|
598 |
st_plugin_int *pi= plugin_ref_to_int(rc); |
|
599 |
DBUG_ENTER("intern_plugin_lock"); |
|
600 |
||
601 |
if (pi->state & (PLUGIN_IS_READY | PLUGIN_IS_UNINITIALIZED)) |
|
602 |
{
|
|
603 |
plugin_ref plugin; |
|
604 |
#ifdef DBUG_OFF
|
|
605 |
/* built-in plugins don't need ref counting */
|
|
606 |
if (!pi->plugin_dl) |
|
607 |
DBUG_RETURN(pi); |
|
608 |
||
609 |
plugin= pi; |
|
610 |
#else
|
|
611 |
/*
|
|
612 |
For debugging, we do an additional malloc which allows the
|
|
613 |
memory manager and/or valgrind to track locked references and
|
|
614 |
double unlocks to aid resolving reference counting.problems.
|
|
615 |
*/
|
|
616 |
if (!(plugin= (plugin_ref) my_malloc_ci(sizeof(pi), MYF(MY_WME)))) |
|
617 |
DBUG_RETURN(NULL); |
|
618 |
||
619 |
*plugin= pi; |
|
620 |
#endif
|
|
621 |
pi->ref_count++; |
|
622 |
DBUG_PRINT("info",("thd: 0x%lx, plugin: \"%s\", ref_count: %d", |
|
623 |
(long) current_thd, pi->name.str, pi->ref_count)); |
|
624 |
||
625 |
if (lex) |
|
626 |
insert_dynamic(&lex->plugins, (uchar*)&plugin); |
|
627 |
DBUG_RETURN(plugin); |
|
628 |
}
|
|
629 |
DBUG_RETURN(NULL); |
|
630 |
}
|
|
631 |
||
632 |
||
633 |
plugin_ref plugin_lock(THD *thd, plugin_ref *ptr CALLER_INFO_PROTO) |
|
634 |
{
|
|
635 |
LEX *lex= thd ? thd->lex : 0; |
|
636 |
plugin_ref rc; |
|
637 |
DBUG_ENTER("plugin_lock"); |
|
638 |
rc= my_intern_plugin_lock_ci(lex, *ptr); |
|
639 |
DBUG_RETURN(rc); |
|
640 |
}
|
|
641 |
||
642 |
||
643 |
plugin_ref plugin_lock_by_name(THD *thd, const LEX_STRING *name, int type |
|
644 |
CALLER_INFO_PROTO) |
|
645 |
{
|
|
646 |
LEX *lex= thd ? thd->lex : 0; |
|
647 |
plugin_ref rc= NULL; |
|
648 |
st_plugin_int *plugin; |
|
649 |
DBUG_ENTER("plugin_lock_by_name"); |
|
650 |
if ((plugin= plugin_find_internal(name, type))) |
|
651 |
rc= my_intern_plugin_lock_ci(lex, plugin_int_to_ref(plugin)); |
|
652 |
DBUG_RETURN(rc); |
|
653 |
}
|
|
654 |
||
655 |
||
656 |
static st_plugin_int *plugin_insert_or_reuse(struct st_plugin_int *plugin) |
|
657 |
{
|
|
658 |
uint i; |
|
659 |
struct st_plugin_int *tmp; |
|
660 |
DBUG_ENTER("plugin_insert_or_reuse"); |
|
661 |
for (i= 0; i < plugin_array.elements; i++) |
|
662 |
{
|
|
663 |
tmp= *dynamic_element(&plugin_array, i, struct st_plugin_int **); |
|
664 |
if (tmp->state == PLUGIN_IS_FREED) |
|
665 |
{
|
|
666 |
memcpy(tmp, plugin, sizeof(struct st_plugin_int)); |
|
667 |
DBUG_RETURN(tmp); |
|
668 |
}
|
|
669 |
}
|
|
670 |
if (insert_dynamic(&plugin_array, (uchar*)&plugin)) |
|
671 |
DBUG_RETURN(0); |
|
672 |
tmp= *dynamic_element(&plugin_array, plugin_array.elements - 1, |
|
673 |
struct st_plugin_int **)= |
|
674 |
(struct st_plugin_int *) memdup_root(&plugin_mem_root, (uchar*)plugin, |
|
675 |
sizeof(struct st_plugin_int)); |
|
676 |
DBUG_RETURN(tmp); |
|
677 |
}
|
|
678 |
||
679 |
||
680 |
/*
|
|
681 |
NOTE
|
|
682 |
Requires that a write-lock is held on LOCK_system_variables_hash
|
|
683 |
*/
|
|
684 |
static bool plugin_add(MEM_ROOT *tmp_root, |
|
685 |
const LEX_STRING *name, const LEX_STRING *dl, |
|
686 |
int *argc, char **argv, int report) |
|
687 |
{
|
|
688 |
struct st_plugin_int tmp; |
|
689 |
struct st_mysql_plugin *plugin; |
|
690 |
DBUG_ENTER("plugin_add"); |
|
691 |
if (plugin_find_internal(name, MYSQL_ANY_PLUGIN)) |
|
692 |
{
|
|
693 |
if (report & REPORT_TO_USER) |
|
694 |
my_error(ER_UDF_EXISTS, MYF(0), name->str); |
|
695 |
if (report & REPORT_TO_LOG) |
|
696 |
sql_print_error(ER(ER_UDF_EXISTS), name->str); |
|
697 |
DBUG_RETURN(TRUE); |
|
698 |
}
|
|
699 |
/* Clear the whole struct to catch future extensions. */
|
|
700 |
bzero((char*) &tmp, sizeof(tmp)); |
|
701 |
if (! (tmp.plugin_dl= plugin_dl_add(dl, report))) |
|
702 |
DBUG_RETURN(TRUE); |
|
703 |
/* Find plugin by name */
|
|
704 |
for (plugin= tmp.plugin_dl->plugins; plugin->info; plugin++) |
|
705 |
{
|
|
706 |
uint name_len= strlen(plugin->name); |
|
707 |
if (plugin->type >= 0 && plugin->type < MYSQL_MAX_PLUGIN_TYPE_NUM && |
|
708 |
! my_strnncoll(system_charset_info, |
|
709 |
(const uchar *)name->str, name->length, |
|
710 |
(const uchar *)plugin->name, |
|
711 |
name_len)) |
|
712 |
{
|
|
713 |
struct st_plugin_int *tmp_plugin_ptr; |
|
714 |
if (*(int*)plugin->info < |
|
715 |
min_plugin_info_interface_version[plugin->type] || |
|
716 |
((*(int*)plugin->info) >> 8) > |
|
717 |
(cur_plugin_info_interface_version[plugin->type] >> 8)) |
|
718 |
{
|
|
719 |
char buf[256]; |
|
720 |
strxnmov(buf, sizeof(buf) - 1, "API version for ", |
|
721 |
plugin_type_names[plugin->type].str, |
|
722 |
" plugin is too different", NullS); |
|
723 |
if (report & REPORT_TO_USER) |
|
724 |
my_error(ER_CANT_OPEN_LIBRARY, MYF(0), dl->str, 0, buf); |
|
725 |
if (report & REPORT_TO_LOG) |
|
726 |
sql_print_error(ER(ER_CANT_OPEN_LIBRARY), dl->str, 0, buf); |
|
727 |
goto err; |
|
728 |
}
|
|
729 |
tmp.plugin= plugin; |
|
730 |
tmp.name.str= (char *)plugin->name; |
|
731 |
tmp.name.length= name_len; |
|
732 |
tmp.ref_count= 0; |
|
733 |
tmp.state= PLUGIN_IS_UNINITIALIZED; |
|
734 |
if (!test_plugin_options(tmp_root, &tmp, argc, argv, true)) |
|
735 |
{
|
|
736 |
if ((tmp_plugin_ptr= plugin_insert_or_reuse(&tmp))) |
|
737 |
{
|
|
738 |
plugin_array_version++; |
|
739 |
if (!my_hash_insert(&plugin_hash[plugin->type], (uchar*)tmp_plugin_ptr)) |
|
740 |
{
|
|
741 |
init_alloc_root(&tmp_plugin_ptr->mem_root, 4096, 4096); |
|
742 |
DBUG_RETURN(FALSE); |
|
743 |
}
|
|
744 |
tmp_plugin_ptr->state= PLUGIN_IS_FREED; |
|
745 |
}
|
|
746 |
mysql_del_sys_var_chain(tmp.system_vars); |
|
747 |
goto err; |
|
748 |
}
|
|
749 |
/* plugin was disabled */
|
|
750 |
plugin_dl_del(dl); |
|
751 |
DBUG_RETURN(FALSE); |
|
752 |
}
|
|
753 |
}
|
|
754 |
if (report & REPORT_TO_USER) |
|
755 |
my_error(ER_CANT_FIND_DL_ENTRY, MYF(0), name->str); |
|
756 |
if (report & REPORT_TO_LOG) |
|
757 |
sql_print_error(ER(ER_CANT_FIND_DL_ENTRY), name->str); |
|
758 |
err: |
|
759 |
plugin_dl_del(dl); |
|
760 |
DBUG_RETURN(TRUE); |
|
761 |
}
|
|
762 |
||
763 |
||
764 |
static void plugin_deinitialize(struct st_plugin_int *plugin, bool ref_check) |
|
765 |
{
|
|
766 |
if (plugin->plugin->status_vars) |
|
767 |
{
|
|
768 |
#ifdef FIX_LATER
|
|
769 |
/*
|
|
770 |
We have a problem right now where we can not prepend without
|
|
771 |
breaking backwards compatibility. We will fix this shortly so
|
|
772 |
that engines have "use names" and we wil use those for
|
|
773 |
CREATE TABLE, and use the plugin name then for adding automatic
|
|
774 |
variable names.
|
|
775 |
*/
|
|
776 |
SHOW_VAR array[2]= { |
|
777 |
{plugin->plugin->name, (char*)plugin->plugin->status_vars, SHOW_ARRAY}, |
|
778 |
{0, 0, SHOW_UNDEF} |
|
779 |
};
|
|
780 |
remove_status_vars(array); |
|
781 |
#else
|
|
782 |
remove_status_vars(plugin->plugin->status_vars); |
|
783 |
#endif /* FIX_LATER */ |
|
784 |
}
|
|
785 |
||
786 |
if (plugin_type_deinitialize[plugin->plugin->type]) |
|
787 |
{
|
|
788 |
if ((*plugin_type_deinitialize[plugin->plugin->type])(plugin)) |
|
789 |
{
|
|
790 |
sql_print_error("Plugin '%s' of type %s failed deinitialization", |
|
791 |
plugin->name.str, plugin_type_names[plugin->plugin->type].str); |
|
792 |
}
|
|
793 |
}
|
|
794 |
else if (plugin->plugin->deinit) |
|
795 |
{
|
|
796 |
DBUG_PRINT("info", ("Deinitializing plugin: '%s'", plugin->name.str)); |
|
797 |
if (plugin->plugin->deinit(plugin)) |
|
798 |
{
|
|
799 |
DBUG_PRINT("warning", ("Plugin '%s' deinit function returned error.", |
|
800 |
plugin->name.str)); |
|
801 |
}
|
|
802 |
}
|
|
803 |
plugin->state= PLUGIN_IS_UNINITIALIZED; |
|
804 |
||
805 |
/*
|
|
806 |
We do the check here because NDB has a worker THD which doesn't
|
|
807 |
exit until NDB is shut down.
|
|
808 |
*/
|
|
809 |
if (ref_check && plugin->ref_count) |
|
810 |
sql_print_error("Plugin '%s' has ref_count=%d after deinitialization.", |
|
811 |
plugin->name.str, plugin->ref_count); |
|
812 |
}
|
|
813 |
||
814 |
||
815 |
static void plugin_del(struct st_plugin_int *plugin) |
|
816 |
{
|
|
817 |
DBUG_ENTER("plugin_del(plugin)"); |
|
818 |
/* Free allocated strings before deleting the plugin. */
|
|
819 |
plugin_vars_free_values(plugin->system_vars); |
|
820 |
hash_delete(&plugin_hash[plugin->plugin->type], (uchar*)plugin); |
|
821 |
if (plugin->plugin_dl) |
|
822 |
plugin_dl_del(&plugin->plugin_dl->dl); |
|
823 |
plugin->state= PLUGIN_IS_FREED; |
|
824 |
plugin_array_version++; |
|
825 |
rw_wrlock(&LOCK_system_variables_hash); |
|
826 |
mysql_del_sys_var_chain(plugin->system_vars); |
|
827 |
rw_unlock(&LOCK_system_variables_hash); |
|
828 |
free_root(&plugin->mem_root, MYF(0)); |
|
829 |
DBUG_VOID_RETURN; |
|
830 |
}
|
|
831 |
||
832 |
#ifdef NOT_USED
|
|
833 |
||
834 |
static void plugin_del(const LEX_STRING *name) |
|
835 |
{
|
|
836 |
struct st_plugin_int *plugin; |
|
837 |
DBUG_ENTER("plugin_del(name)"); |
|
838 |
if ((plugin= plugin_find_internal(name, MYSQL_ANY_PLUGIN))) |
|
839 |
plugin_del(plugin); |
|
840 |
DBUG_VOID_RETURN; |
|
841 |
}
|
|
842 |
||
843 |
#endif
|
|
844 |
||
845 |
static void reap_plugins(void) |
|
846 |
{
|
|
847 |
uint count, idx; |
|
848 |
struct st_plugin_int *plugin, **reap, **list; |
|
849 |
||
850 |
if (!reap_needed) |
|
851 |
return; |
|
852 |
||
853 |
reap_needed= false; |
|
854 |
count= plugin_array.elements; |
|
855 |
reap= (struct st_plugin_int **)my_alloca(sizeof(plugin)*(count+1)); |
|
856 |
*(reap++)= NULL; |
|
857 |
||
858 |
for (idx= 0; idx < count; idx++) |
|
859 |
{
|
|
860 |
plugin= *dynamic_element(&plugin_array, idx, struct st_plugin_int **); |
|
861 |
if (plugin->state == PLUGIN_IS_DELETED && !plugin->ref_count) |
|
862 |
{
|
|
863 |
/* change the status flag to prevent reaping by another thread */
|
|
864 |
plugin->state= PLUGIN_IS_DYING; |
|
865 |
*(reap++)= plugin; |
|
866 |
}
|
|
867 |
}
|
|
868 |
||
869 |
list= reap; |
|
870 |
while ((plugin= *(--list))) |
|
871 |
plugin_deinitialize(plugin, true); |
|
872 |
||
873 |
while ((plugin= *(--reap))) |
|
874 |
plugin_del(plugin); |
|
875 |
||
876 |
my_afree(reap); |
|
877 |
}
|
|
878 |
||
879 |
static void intern_plugin_unlock(LEX *lex, plugin_ref plugin) |
|
880 |
{
|
|
881 |
int i; |
|
882 |
st_plugin_int *pi; |
|
883 |
DBUG_ENTER("intern_plugin_unlock"); |
|
884 |
||
885 |
if (!plugin) |
|
886 |
DBUG_VOID_RETURN; |
|
887 |
||
888 |
pi= plugin_ref_to_int(plugin); |
|
889 |
||
890 |
#ifdef DBUG_OFF
|
|
891 |
if (!pi->plugin_dl) |
|
892 |
DBUG_VOID_RETURN; |
|
893 |
#else
|
|
894 |
my_free((uchar*) plugin, MYF(MY_WME)); |
|
895 |
#endif
|
|
896 |
||
897 |
DBUG_PRINT("info",("unlocking plugin, name= %s, ref_count= %d", |
|
898 |
pi->name.str, pi->ref_count)); |
|
899 |
if (lex) |
|
900 |
{
|
|
901 |
/*
|
|
902 |
Remove one instance of this plugin from the use list.
|
|
903 |
We are searching backwards so that plugins locked last
|
|
904 |
could be unlocked faster - optimizing for LIFO semantics.
|
|
905 |
*/
|
|
906 |
for (i= lex->plugins.elements - 1; i >= 0; i--) |
|
907 |
if (plugin == *dynamic_element(&lex->plugins, i, plugin_ref*)) |
|
908 |
{
|
|
909 |
delete_dynamic_element(&lex->plugins, i); |
|
910 |
break; |
|
911 |
}
|
|
912 |
DBUG_ASSERT(i >= 0); |
|
913 |
}
|
|
914 |
||
915 |
DBUG_ASSERT(pi->ref_count); |
|
916 |
pi->ref_count--; |
|
917 |
||
918 |
if (pi->state == PLUGIN_IS_DELETED && !pi->ref_count) |
|
919 |
reap_needed= true; |
|
920 |
||
921 |
DBUG_VOID_RETURN; |
|
922 |
}
|
|
923 |
||
924 |
||
925 |
void plugin_unlock(THD *thd, plugin_ref plugin) |
|
926 |
{
|
|
927 |
LEX *lex= thd ? thd->lex : 0; |
|
928 |
DBUG_ENTER("plugin_unlock"); |
|
929 |
if (!plugin) |
|
930 |
DBUG_VOID_RETURN; |
|
931 |
intern_plugin_unlock(lex, plugin); |
|
932 |
reap_plugins(); |
|
933 |
DBUG_VOID_RETURN; |
|
934 |
}
|
|
935 |
||
936 |
||
937 |
void plugin_unlock_list(THD *thd, plugin_ref *list, uint count) |
|
938 |
{
|
|
939 |
LEX *lex= thd ? thd->lex : 0; |
|
940 |
DBUG_ENTER("plugin_unlock_list"); |
|
941 |
DBUG_ASSERT(list); |
|
942 |
while (count--) |
|
943 |
intern_plugin_unlock(lex, *list++); |
|
944 |
reap_plugins(); |
|
945 |
DBUG_VOID_RETURN; |
|
946 |
}
|
|
947 |
||
948 |
||
949 |
static int plugin_initialize(struct st_plugin_int *plugin) |
|
950 |
{
|
|
951 |
DBUG_ENTER("plugin_initialize"); |
|
952 |
||
953 |
if (plugin_type_initialize[plugin->plugin->type]) |
|
954 |
{
|
|
955 |
if ((*plugin_type_initialize[plugin->plugin->type])(plugin)) |
|
956 |
{
|
|
957 |
sql_print_error("Plugin '%s' registration as a %s failed.", |
|
958 |
plugin->name.str, plugin_type_names[plugin->plugin->type].str); |
|
959 |
goto err; |
|
960 |
}
|
|
961 |
}
|
|
962 |
else if (plugin->plugin->init) |
|
963 |
{
|
|
964 |
if (plugin->plugin->init(plugin)) |
|
965 |
{
|
|
966 |
sql_print_error("Plugin '%s' init function returned error.", |
|
967 |
plugin->name.str); |
|
968 |
goto err; |
|
969 |
}
|
|
970 |
}
|
|
971 |
||
972 |
plugin->state= PLUGIN_IS_READY; |
|
973 |
||
974 |
if (plugin->plugin->status_vars) |
|
975 |
{
|
|
976 |
#ifdef FIX_LATER
|
|
977 |
/*
|
|
978 |
We have a problem right now where we can not prepend without
|
|
979 |
breaking backwards compatibility. We will fix this shortly so
|
|
980 |
that engines have "use names" and we wil use those for
|
|
981 |
CREATE TABLE, and use the plugin name then for adding automatic
|
|
982 |
variable names.
|
|
983 |
*/
|
|
984 |
SHOW_VAR array[2]= { |
|
985 |
{plugin->plugin->name, (char*)plugin->plugin->status_vars, SHOW_ARRAY}, |
|
986 |
{0, 0, SHOW_UNDEF} |
|
987 |
};
|
|
988 |
if (add_status_vars(array)) // add_status_vars makes a copy |
|
989 |
goto err; |
|
990 |
#else
|
|
991 |
add_status_vars(plugin->plugin->status_vars); // add_status_vars makes a copy |
|
992 |
#endif /* FIX_LATER */ |
|
993 |
}
|
|
994 |
||
995 |
/*
|
|
996 |
set the plugin attribute of plugin's sys vars so they are pointing
|
|
997 |
to the active plugin
|
|
998 |
*/
|
|
999 |
if (plugin->system_vars) |
|
1000 |
{
|
|
1001 |
sys_var_pluginvar *var= plugin->system_vars->cast_pluginvar(); |
|
1002 |
for (;;) |
|
1003 |
{
|
|
1004 |
var->plugin= plugin; |
|
1005 |
if (!var->next) |
|
1006 |
break; |
|
1007 |
var= var->next->cast_pluginvar(); |
|
1008 |
}
|
|
1009 |
}
|
|
1010 |
||
1011 |
DBUG_RETURN(0); |
|
1012 |
err: |
|
1013 |
DBUG_RETURN(1); |
|
1014 |
}
|
|
1015 |
||
1016 |
||
1017 |
extern "C" uchar *get_plugin_hash_key(const uchar *, size_t *, my_bool); |
|
1018 |
extern "C" uchar *get_bookmark_hash_key(const uchar *, size_t *, my_bool); |
|
1019 |
||
1020 |
||
1021 |
uchar *get_plugin_hash_key(const uchar *buff, size_t *length, |
|
1022 |
my_bool not_used __attribute__((unused))) |
|
1023 |
{
|
|
1024 |
struct st_plugin_int *plugin= (st_plugin_int *)buff; |
|
1025 |
*length= (uint)plugin->name.length; |
|
1026 |
return((uchar *)plugin->name.str); |
|
1027 |
}
|
|
1028 |
||
1029 |
||
1030 |
uchar *get_bookmark_hash_key(const uchar *buff, size_t *length, |
|
1031 |
my_bool not_used __attribute__((unused))) |
|
1032 |
{
|
|
1033 |
struct st_bookmark *var= (st_bookmark *)buff; |
|
1034 |
*length= var->name_len + 1; |
|
1035 |
return (uchar*) var->key; |
|
1036 |
}
|
|
1037 |
||
1038 |
||
1039 |
/*
|
|
1040 |
The logic is that we first load and initialize all compiled in plugins.
|
|
1041 |
From there we load up the dynamic types (assuming we have not been told to
|
|
1042 |
skip this part).
|
|
1043 |
||
1044 |
Finally we initialize everything, aka the dynamic that have yet to initialize.
|
|
1045 |
*/
|
|
1046 |
int plugin_init(int *argc, char **argv, int flags) |
|
1047 |
{
|
|
1048 |
uint i; |
|
1049 |
bool def_enabled, is_myisam; |
|
1050 |
struct st_mysql_plugin **builtins; |
|
1051 |
struct st_mysql_plugin *plugin; |
|
1052 |
struct st_plugin_int tmp, *plugin_ptr, **reap; |
|
1053 |
MEM_ROOT tmp_root; |
|
1054 |
DBUG_ENTER("plugin_init"); |
|
1055 |
||
1056 |
if (initialized) |
|
1057 |
DBUG_RETURN(0); |
|
1058 |
||
1059 |
init_alloc_root(&plugin_mem_root, 4096, 4096); |
|
1060 |
init_alloc_root(&tmp_root, 4096, 4096); |
|
1061 |
||
1062 |
if (hash_init(&bookmark_hash, &my_charset_bin, 16, 0, 0, |
|
1063 |
get_bookmark_hash_key, NULL, HASH_UNIQUE)) |
|
1064 |
goto err; |
|
1065 |
||
1066 |
||
1067 |
if (my_init_dynamic_array(&plugin_dl_array, |
|
1068 |
sizeof(struct st_plugin_dl *),16,16) || |
|
1069 |
my_init_dynamic_array(&plugin_array, |
|
1070 |
sizeof(struct st_plugin_int *),16,16)) |
|
1071 |
goto err; |
|
1072 |
||
1073 |
for (i= 0; i < MYSQL_MAX_PLUGIN_TYPE_NUM; i++) |
|
1074 |
{
|
|
1075 |
if (hash_init(&plugin_hash[i], system_charset_info, 16, 0, 0, |
|
1076 |
get_plugin_hash_key, NULL, HASH_UNIQUE)) |
|
1077 |
goto err; |
|
1078 |
}
|
|
1079 |
||
1080 |
initialized= 1; |
|
1081 |
||
1082 |
/*
|
|
1083 |
First we register builtin plugins
|
|
1084 |
*/
|
|
1085 |
for (builtins= mysqld_builtins; *builtins; builtins++) |
|
1086 |
{
|
|
1087 |
for (plugin= *builtins; plugin->info; plugin++) |
|
1088 |
{
|
|
1089 |
/* by default, only ndbcluster is disabled */
|
|
1090 |
def_enabled= |
|
1091 |
my_strcasecmp(&my_charset_latin1, plugin->name, "NDBCLUSTER") != 0; |
|
1092 |
bzero(&tmp, sizeof(tmp)); |
|
1093 |
tmp.plugin= plugin; |
|
1094 |
tmp.name.str= (char *)plugin->name; |
|
1095 |
tmp.name.length= strlen(plugin->name); |
|
1096 |
||
1097 |
free_root(&tmp_root, MYF(MY_MARK_BLOCKS_FREE)); |
|
1098 |
if (test_plugin_options(&tmp_root, &tmp, argc, argv, def_enabled)) |
|
1099 |
continue; |
|
1100 |
||
1101 |
if (register_builtin(plugin, &tmp, &plugin_ptr)) |
|
1102 |
goto err_unlock; |
|
1103 |
||
1104 |
/* only initialize MyISAM and CSV at this stage */
|
|
1105 |
if (!(is_myisam= |
|
1106 |
!my_strcasecmp(&my_charset_latin1, plugin->name, "MyISAM")) && |
|
1107 |
my_strcasecmp(&my_charset_latin1, plugin->name, "CSV")) |
|
1108 |
continue; |
|
1109 |
||
1110 |
if (plugin_initialize(plugin_ptr)) |
|
1111 |
goto err_unlock; |
|
1112 |
||
1113 |
/*
|
|
1114 |
initialize the global default storage engine so that it may
|
|
1115 |
not be null in any child thread.
|
|
1116 |
*/
|
|
1117 |
if (is_myisam) |
|
1118 |
{
|
|
1119 |
DBUG_ASSERT(!global_system_variables.table_plugin); |
|
1120 |
global_system_variables.table_plugin= |
|
1121 |
my_intern_plugin_lock(NULL, plugin_int_to_ref(plugin_ptr)); |
|
1122 |
DBUG_ASSERT(plugin_ptr->ref_count == 1); |
|
1123 |
}
|
|
1124 |
}
|
|
1125 |
}
|
|
1126 |
||
1127 |
/* should now be set to MyISAM storage engine */
|
|
1128 |
DBUG_ASSERT(global_system_variables.table_plugin); |
|
1129 |
||
1130 |
/* Register all dynamic plugins */
|
|
1131 |
if (!(flags & PLUGIN_INIT_SKIP_DYNAMIC_LOADING)) |
|
1132 |
{
|
|
1133 |
if (opt_plugin_load) |
|
1134 |
plugin_load_list(&tmp_root, argc, argv, opt_plugin_load); |
|
1135 |
}
|
|
1136 |
||
1137 |
if (flags & PLUGIN_INIT_SKIP_INITIALIZATION) |
|
1138 |
goto end; |
|
1139 |
||
1140 |
/*
|
|
1141 |
Now we initialize all remaining plugins
|
|
1142 |
*/
|
|
1143 |
||
1144 |
reap= (st_plugin_int **) my_alloca((plugin_array.elements+1) * sizeof(void*)); |
|
1145 |
*(reap++)= NULL; |
|
1146 |
||
1147 |
for (i= 0; i < plugin_array.elements; i++) |
|
1148 |
{
|
|
1149 |
plugin_ptr= *dynamic_element(&plugin_array, i, struct st_plugin_int **); |
|
1150 |
if (plugin_ptr->state == PLUGIN_IS_UNINITIALIZED) |
|
1151 |
{
|
|
1152 |
if (plugin_initialize(plugin_ptr)) |
|
1153 |
{
|
|
1154 |
plugin_ptr->state= PLUGIN_IS_DYING; |
|
1155 |
*(reap++)= plugin_ptr; |
|
1156 |
}
|
|
1157 |
}
|
|
1158 |
}
|
|
1159 |
||
1160 |
/*
|
|
1161 |
Check if any plugins have to be reaped
|
|
1162 |
*/
|
|
1163 |
while ((plugin_ptr= *(--reap))) |
|
1164 |
{
|
|
1165 |
plugin_deinitialize(plugin_ptr, true); |
|
1166 |
plugin_del(plugin_ptr); |
|
1167 |
}
|
|
1168 |
||
1169 |
my_afree(reap); |
|
1170 |
||
1171 |
end: |
|
1172 |
free_root(&tmp_root, MYF(0)); |
|
1173 |
||
1174 |
DBUG_RETURN(0); |
|
1175 |
||
1176 |
err_unlock: |
|
1177 |
err: |
|
1178 |
free_root(&tmp_root, MYF(0)); |
|
1179 |
DBUG_RETURN(1); |
|
1180 |
}
|
|
1181 |
||
1182 |
||
1183 |
static bool register_builtin(struct st_mysql_plugin *plugin, |
|
1184 |
struct st_plugin_int *tmp, |
|
1185 |
struct st_plugin_int **ptr) |
|
1186 |
{
|
|
1187 |
DBUG_ENTER("register_builtin"); |
|
1188 |
||
1189 |
tmp->state= PLUGIN_IS_UNINITIALIZED; |
|
1190 |
tmp->ref_count= 0; |
|
1191 |
tmp->plugin_dl= 0; |
|
1192 |
||
1193 |
if (insert_dynamic(&plugin_array, (uchar*)&tmp)) |
|
1194 |
DBUG_RETURN(1); |
|
1195 |
||
1196 |
*ptr= *dynamic_element(&plugin_array, plugin_array.elements - 1, |
|
1197 |
struct st_plugin_int **)= |
|
1198 |
(struct st_plugin_int *) memdup_root(&plugin_mem_root, (uchar*)tmp, |
|
1199 |
sizeof(struct st_plugin_int)); |
|
1200 |
||
1201 |
if (my_hash_insert(&plugin_hash[plugin->type],(uchar*) *ptr)) |
|
1202 |
DBUG_RETURN(1); |
|
1203 |
||
1204 |
DBUG_RETURN(0); |
|
1205 |
}
|
|
1206 |
||
1207 |
||
1208 |
#ifdef NOT_USED_YET
|
|
1209 |
/*
|
|
1210 |
Register a plugin at run time. (note, this doesn't initialize a plugin)
|
|
1211 |
Will be useful for embedded applications.
|
|
1212 |
||
1213 |
SYNOPSIS
|
|
1214 |
plugin_register_builtin()
|
|
1215 |
thd current thread (used to store scratch data in mem_root)
|
|
1216 |
plugin static plugin to install
|
|
1217 |
||
1218 |
RETURN
|
|
1219 |
false - plugin registered successfully
|
|
1220 |
*/
|
|
1221 |
bool plugin_register_builtin(THD *thd, struct st_mysql_plugin *plugin) |
|
1222 |
{
|
|
1223 |
struct st_plugin_int tmp, *ptr; |
|
1224 |
bool result= true; |
|
1225 |
int dummy_argc= 0; |
|
1226 |
DBUG_ENTER("plugin_register_builtin"); |
|
1227 |
||
1228 |
bzero(&tmp, sizeof(tmp)); |
|
1229 |
tmp.plugin= plugin; |
|
1230 |
tmp.name.str= (char *)plugin->name; |
|
1231 |
tmp.name.length= strlen(plugin->name); |
|
1232 |
||
1233 |
rw_wrlock(&LOCK_system_variables_hash); |
|
1234 |
||
1235 |
if (test_plugin_options(thd->mem_root, &tmp, &dummy_argc, NULL, true)) |
|
1236 |
goto end; |
|
1237 |
||
1238 |
if ((result= register_builtin(plugin, &tmp, &ptr))) |
|
1239 |
mysql_del_sys_var_chain(tmp.system_vars); |
|
1240 |
||
1241 |
end: |
|
1242 |
rw_unlock(&LOCK_system_variables_hash); |
|
1243 |
||
1244 |
DBUG_RETURN(result);; |
|
1245 |
}
|
|
1246 |
#endif /* NOT_USED_YET */ |
|
1247 |
||
1248 |
||
1249 |
/*
|
|
1250 |
called only by plugin_init()
|
|
1251 |
*/
|
|
1252 |
static bool plugin_load_list(MEM_ROOT *tmp_root, int *argc, char **argv, |
|
1253 |
const char *list) |
|
1254 |
{
|
|
1255 |
char buffer[FN_REFLEN]; |
|
1256 |
LEX_STRING name= {buffer, 0}, dl= {NULL, 0}, *str= &name; |
|
1257 |
struct st_plugin_dl *plugin_dl; |
|
1258 |
struct st_mysql_plugin *plugin; |
|
1259 |
char *p= buffer; |
|
1260 |
DBUG_ENTER("plugin_load_list"); |
|
1261 |
while (list) |
|
1262 |
{
|
|
1263 |
if (p == buffer + sizeof(buffer) - 1) |
|
1264 |
{
|
|
1265 |
sql_print_error("plugin-load parameter too long"); |
|
1266 |
DBUG_RETURN(TRUE); |
|
1267 |
}
|
|
1268 |
||
1269 |
switch ((*(p++)= *(list++))) { |
|
1270 |
case '\0': |
|
1271 |
list= NULL; /* terminate the loop */ |
|
1272 |
/* fall through */
|
|
1273 |
case ':': /* can't use this as delimiter as it may be drive letter */ |
|
1274 |
case ';': |
|
1275 |
str->str[str->length]= '\0'; |
|
1276 |
if (str == &name) // load all plugins in named module |
|
1277 |
{
|
|
1278 |
if (!name.length) |
|
1279 |
{
|
|
1280 |
p--; /* reset pointer */ |
|
1281 |
continue; |
|
1282 |
}
|
|
1283 |
||
1284 |
dl= name; |
|
1285 |
if ((plugin_dl= plugin_dl_add(&dl, REPORT_TO_LOG))) |
|
1286 |
{
|
|
1287 |
for (plugin= plugin_dl->plugins; plugin->info; plugin++) |
|
1288 |
{
|
|
1289 |
name.str= (char *) plugin->name; |
|
1290 |
name.length= strlen(name.str); |
|
1291 |
||
1292 |
free_root(tmp_root, MYF(MY_MARK_BLOCKS_FREE)); |
|
1293 |
if (plugin_add(tmp_root, &name, &dl, argc, argv, REPORT_TO_LOG)) |
|
1294 |
goto error; |
|
1295 |
}
|
|
1296 |
plugin_dl_del(&dl); // reduce ref count |
|
1297 |
}
|
|
1298 |
}
|
|
1299 |
else
|
|
1300 |
{
|
|
1301 |
free_root(tmp_root, MYF(MY_MARK_BLOCKS_FREE)); |
|
1302 |
if (plugin_add(tmp_root, &name, &dl, argc, argv, REPORT_TO_LOG)) |
|
1303 |
goto error; |
|
1304 |
}
|
|
1305 |
name.length= dl.length= 0; |
|
1306 |
dl.str= NULL; name.str= p= buffer; |
|
1307 |
str= &name; |
|
1308 |
continue; |
|
1309 |
case '=': |
|
1310 |
case '#': |
|
1311 |
if (str == &name) |
|
1312 |
{
|
|
1313 |
name.str[name.length]= '\0'; |
|
1314 |
str= &dl; |
|
1315 |
str->str= p; |
|
1316 |
continue; |
|
1317 |
}
|
|
1318 |
default: |
|
1319 |
str->length++; |
|
1320 |
continue; |
|
1321 |
}
|
|
1322 |
}
|
|
1323 |
DBUG_RETURN(FALSE); |
|
1324 |
error: |
|
1325 |
sql_print_error("Couldn't load plugin named '%s' with soname '%s'.", |
|
1326 |
name.str, dl.str); |
|
1327 |
DBUG_RETURN(TRUE); |
|
1328 |
}
|
|
1329 |
||
1330 |
||
1331 |
void plugin_shutdown(void) |
|
1332 |
{
|
|
1333 |
uint i, count= plugin_array.elements, free_slots= 0; |
|
1334 |
struct st_plugin_int **plugins, *plugin; |
|
1335 |
struct st_plugin_dl **dl; |
|
1336 |
DBUG_ENTER("plugin_shutdown"); |
|
1337 |
||
1338 |
if (initialized) |
|
1339 |
{
|
|
1340 |
reap_needed= true; |
|
1341 |
||
1342 |
/*
|
|
1343 |
We want to shut down plugins in a reasonable order, this will
|
|
1344 |
become important when we have plugins which depend upon each other.
|
|
1345 |
Circular references cannot be reaped so they are forced afterwards.
|
|
1346 |
TODO: Have an additional step here to notify all active plugins that
|
|
1347 |
shutdown is requested to allow plugins to deinitialize in parallel.
|
|
1348 |
*/
|
|
1349 |
while (reap_needed && (count= plugin_array.elements)) |
|
1350 |
{
|
|
1351 |
reap_plugins(); |
|
1352 |
for (i= free_slots= 0; i < count; i++) |
|
1353 |
{
|
|
1354 |
plugin= *dynamic_element(&plugin_array, i, struct st_plugin_int **); |
|
1355 |
switch (plugin->state) { |
|
1356 |
case PLUGIN_IS_READY: |
|
1357 |
plugin->state= PLUGIN_IS_DELETED; |
|
1358 |
reap_needed= true; |
|
1359 |
break; |
|
1360 |
case PLUGIN_IS_FREED: |
|
1361 |
case PLUGIN_IS_UNINITIALIZED: |
|
1362 |
free_slots++; |
|
1363 |
break; |
|
1364 |
}
|
|
1365 |
}
|
|
1366 |
if (!reap_needed) |
|
1367 |
{
|
|
1368 |
/*
|
|
1369 |
release any plugin references held.
|
|
1370 |
*/
|
|
1371 |
unlock_variables(NULL, &global_system_variables); |
|
1372 |
unlock_variables(NULL, &max_system_variables); |
|
1373 |
}
|
|
1374 |
}
|
|
1375 |
||
1376 |
if (count > free_slots) |
|
1377 |
sql_print_warning("Forcing shutdown of %d plugins", count - free_slots); |
|
1378 |
||
1379 |
plugins= (struct st_plugin_int **) my_alloca(sizeof(void*) * (count+1)); |
|
1380 |
||
1381 |
/*
|
|
1382 |
If we have any plugins which did not die cleanly, we force shutdown
|
|
1383 |
*/
|
|
1384 |
for (i= 0; i < count; i++) |
|
1385 |
{
|
|
1386 |
plugins[i]= *dynamic_element(&plugin_array, i, struct st_plugin_int **); |
|
1387 |
/* change the state to ensure no reaping races */
|
|
1388 |
if (plugins[i]->state == PLUGIN_IS_DELETED) |
|
1389 |
plugins[i]->state= PLUGIN_IS_DYING; |
|
1390 |
}
|
|
1391 |
||
1392 |
/*
|
|
1393 |
We loop through all plugins and call deinit() if they have one.
|
|
1394 |
*/
|
|
1395 |
for (i= 0; i < count; i++) |
|
1396 |
if (!(plugins[i]->state & (PLUGIN_IS_UNINITIALIZED | PLUGIN_IS_FREED))) |
|
1397 |
{
|
|
1398 |
sql_print_information("Plugin '%s' will be forced to shutdown", |
|
1399 |
plugins[i]->name.str); |
|
1400 |
/*
|
|
1401 |
We are forcing deinit on plugins so we don't want to do a ref_count
|
|
1402 |
check until we have processed all the plugins.
|
|
1403 |
*/
|
|
1404 |
plugin_deinitialize(plugins[i], false); |
|
1405 |
}
|
|
1406 |
||
1407 |
/*
|
|
1408 |
We defer checking ref_counts until after all plugins are deinitialized
|
|
1409 |
as some may have worker threads holding on to plugin references.
|
|
1410 |
*/
|
|
1411 |
for (i= 0; i < count; i++) |
|
1412 |
{
|
|
1413 |
if (plugins[i]->ref_count) |
|
1414 |
sql_print_error("Plugin '%s' has ref_count=%d after shutdown.", |
|
1415 |
plugins[i]->name.str, plugins[i]->ref_count); |
|
1416 |
if (plugins[i]->state & PLUGIN_IS_UNINITIALIZED) |
|
1417 |
plugin_del(plugins[i]); |
|
1418 |
}
|
|
1419 |
||
1420 |
/*
|
|
1421 |
Now we can deallocate all memory.
|
|
1422 |
*/
|
|
1423 |
||
1424 |
cleanup_variables(NULL, &global_system_variables); |
|
1425 |
cleanup_variables(NULL, &max_system_variables); |
|
1426 |
||
1427 |
initialized= 0; |
|
1428 |
||
1429 |
my_afree(plugins); |
|
1430 |
}
|
|
1431 |
||
1432 |
/* Dispose of the memory */
|
|
1433 |
||
1434 |
for (i= 0; i < MYSQL_MAX_PLUGIN_TYPE_NUM; i++) |
|
1435 |
hash_free(&plugin_hash[i]); |
|
1436 |
delete_dynamic(&plugin_array); |
|
1437 |
||
1438 |
count= plugin_dl_array.elements; |
|
1439 |
dl= (struct st_plugin_dl **)my_alloca(sizeof(void*) * count); |
|
1440 |
for (i= 0; i < count; i++) |
|
1441 |
dl[i]= *dynamic_element(&plugin_dl_array, i, struct st_plugin_dl **); |
|
1442 |
for (i= 0; i < plugin_dl_array.elements; i++) |
|
1443 |
free_plugin_mem(dl[i]); |
|
1444 |
my_afree(dl); |
|
1445 |
delete_dynamic(&plugin_dl_array); |
|
1446 |
||
1447 |
hash_free(&bookmark_hash); |
|
1448 |
free_root(&plugin_mem_root, MYF(0)); |
|
1449 |
||
1450 |
global_variables_dynamic_size= 0; |
|
1451 |
||
1452 |
DBUG_VOID_RETURN; |
|
1453 |
}
|
|
1454 |
||
1455 |
||
1456 |
bool plugin_foreach_with_mask(THD *thd, plugin_foreach_func *func, |
|
1457 |
int type, uint state_mask, void *arg) |
|
1458 |
{
|
|
1459 |
uint idx, total; |
|
1460 |
struct st_plugin_int *plugin, **plugins; |
|
1461 |
int version=plugin_array_version; |
|
1462 |
DBUG_ENTER("plugin_foreach_with_mask"); |
|
1463 |
||
1464 |
if (!initialized) |
|
1465 |
DBUG_RETURN(FALSE); |
|
1466 |
||
1467 |
state_mask= ~state_mask; // do it only once |
|
1468 |
||
1469 |
total= type == MYSQL_ANY_PLUGIN ? plugin_array.elements |
|
1470 |
: plugin_hash[type].records; |
|
1471 |
/*
|
|
1472 |
Do the alloca out here in case we do have a working alloca:
|
|
1473 |
leaving the nested stack frame invalidates alloca allocation.
|
|
1474 |
*/
|
|
1475 |
plugins=(struct st_plugin_int **)my_alloca(total*sizeof(plugin)); |
|
1476 |
if (type == MYSQL_ANY_PLUGIN) |
|
1477 |
{
|
|
1478 |
for (idx= 0; idx < total; idx++) |
|
1479 |
{
|
|
1480 |
plugin= *dynamic_element(&plugin_array, idx, struct st_plugin_int **); |
|
1481 |
plugins[idx]= !(plugin->state & state_mask) ? plugin : NULL; |
|
1482 |
}
|
|
1483 |
}
|
|
1484 |
else
|
|
1485 |
{
|
|
1486 |
HASH *hash= plugin_hash + type; |
|
1487 |
for (idx= 0; idx < total; idx++) |
|
1488 |
{
|
|
1489 |
plugin= (struct st_plugin_int *) hash_element(hash, idx); |
|
1490 |
plugins[idx]= !(plugin->state & state_mask) ? plugin : NULL; |
|
1491 |
}
|
|
1492 |
}
|
|
1493 |
for (idx= 0; idx < total; idx++) |
|
1494 |
{
|
|
1495 |
if (unlikely(version != plugin_array_version)) |
|
1496 |
{
|
|
1497 |
for (uint i=idx; i < total; i++) |
|
1498 |
if (plugins[i] && plugins[i]->state & state_mask) |
|
1499 |
plugins[i]=0; |
|
1500 |
}
|
|
1501 |
plugin= plugins[idx]; |
|
1502 |
/* It will stop iterating on first engine error when "func" returns TRUE */
|
|
1503 |
if (plugin && func(thd, plugin_int_to_ref(plugin), arg)) |
|
1504 |
goto err; |
|
1505 |
}
|
|
1506 |
||
1507 |
my_afree(plugins); |
|
1508 |
DBUG_RETURN(FALSE); |
|
1509 |
err: |
|
1510 |
my_afree(plugins); |
|
1511 |
DBUG_RETURN(TRUE); |
|
1512 |
}
|
|
1513 |
||
1514 |
||
1515 |
/****************************************************************************
|
|
1516 |
Internal type declarations for variables support
|
|
1517 |
****************************************************************************/
|
|
1518 |
||
1519 |
#undef MYSQL_SYSVAR_NAME
|
|
1520 |
#define MYSQL_SYSVAR_NAME(name) name
|
|
1521 |
#define PLUGIN_VAR_TYPEMASK 0x007f
|
|
1522 |
||
1523 |
#define EXTRA_OPTIONS 3 /* options for: 'foo', 'plugin-foo' and NULL */ |
|
1524 |
||
1525 |
typedef DECLARE_MYSQL_SYSVAR_BASIC(sysvar_bool_t, my_bool); |
|
1526 |
typedef DECLARE_MYSQL_THDVAR_BASIC(thdvar_bool_t, my_bool); |
|
1527 |
typedef DECLARE_MYSQL_SYSVAR_BASIC(sysvar_str_t, char *); |
|
1528 |
typedef DECLARE_MYSQL_THDVAR_BASIC(thdvar_str_t, char *); |
|
1529 |
||
1530 |
typedef DECLARE_MYSQL_SYSVAR_TYPELIB(sysvar_enum_t, unsigned long); |
|
1531 |
typedef DECLARE_MYSQL_THDVAR_TYPELIB(thdvar_enum_t, unsigned long); |
|
1532 |
typedef DECLARE_MYSQL_SYSVAR_TYPELIB(sysvar_set_t, ulonglong); |
|
1533 |
typedef DECLARE_MYSQL_THDVAR_TYPELIB(thdvar_set_t, ulonglong); |
|
1534 |
||
1535 |
typedef DECLARE_MYSQL_SYSVAR_SIMPLE(sysvar_int_t, int); |
|
1536 |
typedef DECLARE_MYSQL_SYSVAR_SIMPLE(sysvar_long_t, long); |
|
1537 |
typedef DECLARE_MYSQL_SYSVAR_SIMPLE(sysvar_longlong_t, longlong); |
|
1538 |
typedef DECLARE_MYSQL_SYSVAR_SIMPLE(sysvar_uint_t, uint); |
|
1539 |
typedef DECLARE_MYSQL_SYSVAR_SIMPLE(sysvar_ulong_t, ulong); |
|
1540 |
typedef DECLARE_MYSQL_SYSVAR_SIMPLE(sysvar_ulonglong_t, ulonglong); |
|
1541 |
||
1542 |
typedef DECLARE_MYSQL_THDVAR_SIMPLE(thdvar_int_t, int); |
|
1543 |
typedef DECLARE_MYSQL_THDVAR_SIMPLE(thdvar_long_t, long); |
|
1544 |
typedef DECLARE_MYSQL_THDVAR_SIMPLE(thdvar_longlong_t, longlong); |
|
1545 |
typedef DECLARE_MYSQL_THDVAR_SIMPLE(thdvar_uint_t, uint); |
|
1546 |
typedef DECLARE_MYSQL_THDVAR_SIMPLE(thdvar_ulong_t, ulong); |
|
1547 |
typedef DECLARE_MYSQL_THDVAR_SIMPLE(thdvar_ulonglong_t, ulonglong); |
|
1548 |
||
1549 |
#define SET_PLUGIN_VAR_RESOLVE(opt)\
|
|
1550 |
*(mysql_sys_var_ptr_p*)&((opt)->resolve)= mysql_sys_var_ptr
|
|
1551 |
typedef uchar *(*mysql_sys_var_ptr_p)(void* a_thd, int offset); |
|
1552 |
||
1553 |
||
1554 |
/****************************************************************************
|
|
1555 |
default variable data check and update functions
|
|
1556 |
****************************************************************************/
|
|
1557 |
||
1558 |
static int check_func_bool(THD *thd, struct st_mysql_sys_var *var, |
|
1559 |
void *save, st_mysql_value *value) |
|
1560 |
{
|
|
1561 |
char buff[STRING_BUFFER_USUAL_SIZE]; |
|
1562 |
const char *strvalue= "NULL", *str; |
|
1563 |
int result, length; |
|
1564 |
long long tmp; |
|
1565 |
||
1566 |
if (value->value_type(value) == MYSQL_VALUE_TYPE_STRING) |
|
1567 |
{
|
|
1568 |
length= sizeof(buff); |
|
1569 |
if (!(str= value->val_str(value, buff, &length)) || |
|
1570 |
(result= find_type(&bool_typelib, str, length, 1)-1) < 0) |
|
1571 |
{
|
|
1572 |
if (str) |
|
1573 |
strvalue= str; |
|
1574 |
goto err; |
|
1575 |
}
|
|
1576 |
}
|
|
1577 |
else
|
|
1578 |
{
|
|
1579 |
if (value->val_int(value, &tmp) < 0) |
|
1580 |
goto err; |
|
1581 |
if (tmp > 1) |
|
1582 |
{
|
|
1583 |
llstr(tmp, buff); |
|
1584 |
strvalue= buff; |
|
1585 |
goto err; |
|
1586 |
}
|
|
1587 |
result= (int) tmp; |
|
1588 |
}
|
|
1589 |
*(int*)save= -result; |
|
1590 |
return 0; |
|
1591 |
err: |
|
1592 |
my_error(ER_WRONG_VALUE_FOR_VAR, MYF(0), var->name, strvalue); |
|
1593 |
return 1; |
|
1594 |
}
|
|
1595 |
||
1596 |
||
1597 |
static int check_func_int(THD *thd, struct st_mysql_sys_var *var, |
|
1598 |
void *save, st_mysql_value *value) |
|
1599 |
{
|
|
1600 |
my_bool fixed; |
|
1601 |
long long tmp; |
|
1602 |
struct my_option options; |
|
1603 |
value->val_int(value, &tmp); |
|
1604 |
plugin_opt_set_limits(&options, var); |
|
1605 |
||
1606 |
if (var->flags & PLUGIN_VAR_UNSIGNED) |
|
1607 |
*(uint *)save= (uint) getopt_ull_limit_value((ulonglong) tmp, &options, |
|
1608 |
&fixed); |
|
1609 |
else
|
|
1610 |
*(int *)save= (int) getopt_ll_limit_value(tmp, &options, &fixed); |
|
1611 |
||
1612 |
return throw_bounds_warning(thd, fixed, var->flags & PLUGIN_VAR_UNSIGNED, |
|
1613 |
var->name, (longlong) tmp); |
|
1614 |
}
|
|
1615 |
||
1616 |
||
1617 |
static int check_func_long(THD *thd, struct st_mysql_sys_var *var, |
|
1618 |
void *save, st_mysql_value *value) |
|
1619 |
{
|
|
1620 |
my_bool fixed; |
|
1621 |
long long tmp; |
|
1622 |
struct my_option options; |
|
1623 |
value->val_int(value, &tmp); |
|
1624 |
plugin_opt_set_limits(&options, var); |
|
1625 |
||
1626 |
if (var->flags & PLUGIN_VAR_UNSIGNED) |
|
1627 |
*(ulong *)save= (ulong) getopt_ull_limit_value((ulonglong) tmp, &options, |
|
1628 |
&fixed); |
|
1629 |
else
|
|
1630 |
*(long *)save= (long) getopt_ll_limit_value(tmp, &options, &fixed); |
|
1631 |
||
1632 |
return throw_bounds_warning(thd, fixed, var->flags & PLUGIN_VAR_UNSIGNED, |
|
1633 |
var->name, (longlong) tmp); |
|
1634 |
}
|
|
1635 |
||
1636 |
||
1637 |
static int check_func_longlong(THD *thd, struct st_mysql_sys_var *var, |
|
1638 |
void *save, st_mysql_value *value) |
|
1639 |
{
|
|
1640 |
my_bool fixed; |
|
1641 |
long long tmp; |
|
1642 |
struct my_option options; |
|
1643 |
value->val_int(value, &tmp); |
|
1644 |
plugin_opt_set_limits(&options, var); |
|
1645 |
||
1646 |
if (var->flags & PLUGIN_VAR_UNSIGNED) |
|
1647 |
*(ulonglong *)save= getopt_ull_limit_value((ulonglong) tmp, &options, |
|
1648 |
&fixed); |
|
1649 |
else
|
|
1650 |
*(longlong *)save= getopt_ll_limit_value(tmp, &options, &fixed); |
|
1651 |
||
1652 |
return throw_bounds_warning(thd, fixed, var->flags & PLUGIN_VAR_UNSIGNED, |
|
1653 |
var->name, (longlong) tmp); |
|
1654 |
}
|
|
1655 |
||
1656 |
static int check_func_str(THD *thd, struct st_mysql_sys_var *var, |
|
1657 |
void *save, st_mysql_value *value) |
|
1658 |
{
|
|
1659 |
char buff[STRING_BUFFER_USUAL_SIZE]; |
|
1660 |
const char *str; |
|
1661 |
int length; |
|
1662 |
||
1663 |
length= sizeof(buff); |
|
1664 |
if ((str= value->val_str(value, buff, &length))) |
|
1665 |
str= thd->strmake(str, length); |
|
1666 |
*(const char**)save= str; |
|
1667 |
return 0; |
|
1668 |
}
|
|
1669 |
||
1670 |
||
1671 |
static int check_func_enum(THD *thd, struct st_mysql_sys_var *var, |
|
1672 |
void *save, st_mysql_value *value) |
|
1673 |
{
|
|
1674 |
char buff[STRING_BUFFER_USUAL_SIZE]; |
|
1675 |
const char *strvalue= "NULL", *str; |
|
1676 |
TYPELIB *typelib; |
|
1677 |
long long tmp; |
|
1678 |
long result; |
|
1679 |
int length; |
|
1680 |
||
1681 |
if (var->flags & PLUGIN_VAR_THDLOCAL) |
|
1682 |
typelib= ((thdvar_enum_t*) var)->typelib; |
|
1683 |
else
|
|
1684 |
typelib= ((sysvar_enum_t*) var)->typelib; |
|
1685 |
||
1686 |
if (value->value_type(value) == MYSQL_VALUE_TYPE_STRING) |
|
1687 |
{
|
|
1688 |
length= sizeof(buff); |
|
1689 |
if (!(str= value->val_str(value, buff, &length))) |
|
1690 |
goto err; |
|
1691 |
if ((result= (long)find_type(typelib, str, length, 1)-1) < 0) |
|
1692 |
{
|
|
1693 |
strvalue= str; |
|
1694 |
goto err; |
|
1695 |
}
|
|
1696 |
}
|
|
1697 |
else
|
|
1698 |
{
|
|
1699 |
if (value->val_int(value, &tmp)) |
|
1700 |
goto err; |
|
1701 |
if (tmp >= typelib->count) |
|
1702 |
{
|
|
1703 |
llstr(tmp, buff); |
|
1704 |
strvalue= buff; |
|
1705 |
goto err; |
|
1706 |
}
|
|
1707 |
result= (long) tmp; |
|
1708 |
}
|
|
1709 |
*(long*)save= result; |
|
1710 |
return 0; |
|
1711 |
err: |
|
1712 |
my_error(ER_WRONG_VALUE_FOR_VAR, MYF(0), var->name, strvalue); |
|
1713 |
return 1; |
|
1714 |
}
|
|
1715 |
||
1716 |
||
1717 |
static int check_func_set(THD *thd, struct st_mysql_sys_var *var, |
|
1718 |
void *save, st_mysql_value *value) |
|
1719 |
{
|
|
1720 |
char buff[STRING_BUFFER_USUAL_SIZE], *error= 0; |
|
1721 |
const char *strvalue= "NULL", *str; |
|
1722 |
TYPELIB *typelib; |
|
1723 |
ulonglong result; |
|
1724 |
uint error_len; |
|
1725 |
bool not_used; |
|
1726 |
int length; |
|
1727 |
||
1728 |
if (var->flags & PLUGIN_VAR_THDLOCAL) |
|
1729 |
typelib= ((thdvar_set_t*) var)->typelib; |
|
1730 |
else
|
|
1731 |
typelib= ((sysvar_set_t*)var)->typelib; |
|
1732 |
||
1733 |
if (value->value_type(value) == MYSQL_VALUE_TYPE_STRING) |
|
1734 |
{
|
|
1735 |
length= sizeof(buff); |
|
1736 |
if (!(str= value->val_str(value, buff, &length))) |
|
1737 |
goto err; |
|
1738 |
result= find_set(typelib, str, length, NULL, |
|
1739 |
&error, &error_len, ¬_used); |
|
1740 |
if (error_len) |
|
1741 |
{
|
|
1742 |
strmake(buff, error, min(sizeof(buff), error_len)); |
|
1743 |
strvalue= buff; |
|
1744 |
goto err; |
|
1745 |
}
|
|
1746 |
}
|
|
1747 |
else
|
|
1748 |
{
|
|
1749 |
if (value->val_int(value, (long long *)&result)) |
|
1750 |
goto err; |
|
1751 |
if (unlikely((result >= (ULL(1) << typelib->count)) && |
|
1752 |
(typelib->count < sizeof(long)*8))) |
|
1753 |
{
|
|
1754 |
llstr(result, buff); |
|
1755 |
strvalue= buff; |
|
1756 |
goto err; |
|
1757 |
}
|
|
1758 |
}
|
|
1759 |
*(ulonglong*)save= result; |
|
1760 |
return 0; |
|
1761 |
err: |
|
1762 |
my_error(ER_WRONG_VALUE_FOR_VAR, MYF(0), var->name, strvalue); |
|
1763 |
return 1; |
|
1764 |
}
|
|
1765 |
||
1766 |
||
1767 |
static void update_func_bool(THD *thd, struct st_mysql_sys_var *var, |
|
1768 |
void *tgt, const void *save) |
|
1769 |
{
|
|
1770 |
*(my_bool *) tgt= *(int *) save ? 1 : 0; |
|
1771 |
}
|
|
1772 |
||
1773 |
||
1774 |
static void update_func_int(THD *thd, struct st_mysql_sys_var *var, |
|
1775 |
void *tgt, const void *save) |
|
1776 |
{
|
|
1777 |
*(int *)tgt= *(int *) save; |
|
1778 |
}
|
|
1779 |
||
1780 |
||
1781 |
static void update_func_long(THD *thd, struct st_mysql_sys_var *var, |
|
1782 |
void *tgt, const void *save) |
|
1783 |
{
|
|
1784 |
*(long *)tgt= *(long *) save; |
|
1785 |
}
|
|
1786 |
||
1787 |
||
1788 |
static void update_func_longlong(THD *thd, struct st_mysql_sys_var *var, |
|
1789 |
void *tgt, const void *save) |
|
1790 |
{
|
|
1791 |
*(longlong *)tgt= *(ulonglong *) save; |
|
1792 |
}
|
|
1793 |
||
1794 |
||
1795 |
static void update_func_str(THD *thd, struct st_mysql_sys_var *var, |
|
1796 |
void *tgt, const void *save) |
|
1797 |
{
|
|
1798 |
char *old= *(char **) tgt; |
|
1799 |
*(char **)tgt= *(char **) save; |
|
1800 |
if (var->flags & PLUGIN_VAR_MEMALLOC) |
|
1801 |
{
|
|
1802 |
*(char **)tgt= my_strdup(*(char **) save, MYF(0)); |
|
1803 |
my_free(old, MYF(0)); |
|
1804 |
}
|
|
1805 |
}
|
|
1806 |
||
1807 |
||
1808 |
/****************************************************************************
|
|
1809 |
System Variables support
|
|
1810 |
****************************************************************************/
|
|
1811 |
||
1812 |
||
1813 |
sys_var *find_sys_var(THD *thd, const char *str, uint length) |
|
1814 |
{
|
|
1815 |
sys_var *var; |
|
1816 |
sys_var_pluginvar *pi= NULL; |
|
1817 |
plugin_ref plugin; |
|
1818 |
DBUG_ENTER("find_sys_var"); |
|
1819 |
||
1820 |
rw_rdlock(&LOCK_system_variables_hash); |
|
1821 |
if ((var= intern_find_sys_var(str, length, false)) && |
|
1822 |
(pi= var->cast_pluginvar())) |
|
1823 |
{
|
|
1824 |
rw_unlock(&LOCK_system_variables_hash); |
|
1825 |
LEX *lex= thd ? thd->lex : 0; |
|
1826 |
if (!(plugin= my_intern_plugin_lock(lex, plugin_int_to_ref(pi->plugin)))) |
|
1827 |
var= NULL; /* failed to lock it, it must be uninstalling */ |
|
1828 |
else
|
|
1829 |
if (!(plugin_state(plugin) & PLUGIN_IS_READY)) |
|
1830 |
{
|
|
1831 |
/* initialization not completed */
|
|
1832 |
var= NULL; |
|
1833 |
intern_plugin_unlock(lex, plugin); |
|
1834 |
}
|
|
1835 |
}
|
|
1836 |
else
|
|
1837 |
rw_unlock(&LOCK_system_variables_hash); |
|
1838 |
||
1839 |
/*
|
|
1840 |
If the variable exists but the plugin it is associated with is not ready
|
|
1841 |
then the intern_plugin_lock did not raise an error, so we do it here.
|
|
1842 |
*/
|
|
1843 |
if (pi && !var) |
|
1844 |
my_error(ER_UNKNOWN_SYSTEM_VARIABLE, MYF(0), (char*) str); |
|
1845 |
DBUG_RETURN(var); |
|
1846 |
}
|
|
1847 |
||
1848 |
||
1849 |
/*
|
|
1850 |
called by register_var, construct_options and test_plugin_options.
|
|
1851 |
Returns the 'bookmark' for the named variable.
|
|
1852 |
LOCK_system_variables_hash should be at least read locked
|
|
1853 |
*/
|
|
1854 |
static st_bookmark *find_bookmark(const char *plugin, const char *name, |
|
1855 |
int flags) |
|
1856 |
{
|
|
1857 |
st_bookmark *result= NULL; |
|
1858 |
uint namelen, length, pluginlen= 0; |
|
1859 |
char *varname, *p; |
|
1860 |
||
1861 |
if (!(flags & PLUGIN_VAR_THDLOCAL)) |
|
1862 |
return NULL; |
|
1863 |
||
1864 |
namelen= strlen(name); |
|
1865 |
if (plugin) |
|
1866 |
pluginlen= strlen(plugin) + 1; |
|
1867 |
length= namelen + pluginlen + 2; |
|
1868 |
varname= (char*) my_alloca(length); |
|
1869 |
||
1870 |
if (plugin) |
|
1871 |
{
|
|
1872 |
strxmov(varname + 1, plugin, "_", name, NullS); |
|
1873 |
for (p= varname + 1; *p; p++) |
|
1874 |
if (*p == '-') |
|
1875 |
*p= '_'; |
|
1876 |
}
|
|
1877 |
else
|
|
1878 |
memcpy(varname + 1, name, namelen + 1); |
|
1879 |
||
1880 |
varname[0]= flags & PLUGIN_VAR_TYPEMASK; |
|
1881 |
||
1882 |
result= (st_bookmark*) hash_search(&bookmark_hash, |
|
1883 |
(const uchar*) varname, length - 1); |
|
1884 |
||
1885 |
my_afree(varname); |
|
1886 |
return result; |
|
1887 |
}
|
|
1888 |
||
1889 |
||
1890 |
/*
|
|
1891 |
returns a bookmark for thd-local variables, creating if neccessary.
|
|
1892 |
returns null for non thd-local variables.
|
|
1893 |
Requires that a write lock is obtained on LOCK_system_variables_hash
|
|
1894 |
*/
|
|
1895 |
static st_bookmark *register_var(const char *plugin, const char *name, |
|
1896 |
int flags) |
|
1897 |
{
|
|
1898 |
uint length= strlen(plugin) + strlen(name) + 3, size= 0, offset, new_size; |
|
1899 |
st_bookmark *result; |
|
1900 |
char *varname, *p; |
|
1901 |
||
1902 |
if (!(flags & PLUGIN_VAR_THDLOCAL)) |
|
1903 |
return NULL; |
|
1904 |
||
1905 |
switch (flags & PLUGIN_VAR_TYPEMASK) { |
|
1906 |
case PLUGIN_VAR_BOOL: |
|
1907 |
size= sizeof(my_bool); |
|
1908 |
break; |
|
1909 |
case PLUGIN_VAR_INT: |
|
1910 |
size= sizeof(int); |
|
1911 |
break; |
|
1912 |
case PLUGIN_VAR_LONG: |
|
1913 |
case PLUGIN_VAR_ENUM: |
|
1914 |
size= sizeof(long); |
|
1915 |
break; |
|
1916 |
case PLUGIN_VAR_LONGLONG: |
|
1917 |
case PLUGIN_VAR_SET: |
|
1918 |
size= sizeof(ulonglong); |
|
1919 |
break; |
|
1920 |
case PLUGIN_VAR_STR: |
|
1921 |
size= sizeof(char*); |
|
1922 |
break; |
|
1923 |
default: |
|
1924 |
DBUG_ASSERT(0); |
|
1925 |
return NULL; |
|
1926 |
};
|
|
1927 |
||
1928 |
varname= ((char*) my_alloca(length)); |
|
1929 |
strxmov(varname + 1, plugin, "_", name, NullS); |
|
1930 |
for (p= varname + 1; *p; p++) |
|
1931 |
if (*p == '-') |
|
1932 |
*p= '_'; |
|
1933 |
||
1934 |
if (!(result= find_bookmark(NULL, varname + 1, flags))) |
|
1935 |
{
|
|
1936 |
result= (st_bookmark*) alloc_root(&plugin_mem_root, |
|
1937 |
sizeof(struct st_bookmark) + length-1); |
|
1938 |
varname[0]= flags & PLUGIN_VAR_TYPEMASK; |
|
1939 |
memcpy(result->key, varname, length); |
|
1940 |
result->name_len= length - 2; |
|
1941 |
result->offset= -1; |
|
1942 |
||
1943 |
DBUG_ASSERT(size && !(size & (size-1))); /* must be power of 2 */ |
|
1944 |
||
1945 |
offset= global_system_variables.dynamic_variables_size; |
|
1946 |
offset= (offset + size - 1) & ~(size - 1); |
|
1947 |
result->offset= (int) offset; |
|
1948 |
||
1949 |
new_size= (offset + size + 63) & ~63; |
|
1950 |
||
1951 |
if (new_size > global_variables_dynamic_size) |
|
1952 |
{
|
|
1953 |
global_system_variables.dynamic_variables_ptr= (char*) |
|
1954 |
my_realloc(global_system_variables.dynamic_variables_ptr, new_size, |
|
1955 |
MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); |
|
1956 |
max_system_variables.dynamic_variables_ptr= (char*) |
|
1957 |
my_realloc(max_system_variables.dynamic_variables_ptr, new_size, |
|
1958 |
MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); |
|
1959 |
/*
|
|
1960 |
Clear the new variable value space. This is required for string
|
|
1961 |
variables. If their value is non-NULL, it must point to a valid
|
|
1962 |
string.
|
|
1963 |
*/
|
|
1964 |
bzero(global_system_variables.dynamic_variables_ptr + |
|
1965 |
global_variables_dynamic_size, |
|
1966 |
new_size - global_variables_dynamic_size); |
|
1967 |
bzero(max_system_variables.dynamic_variables_ptr + |
|
1968 |
global_variables_dynamic_size, |
|
1969 |
new_size - global_variables_dynamic_size); |
|
1970 |
global_variables_dynamic_size= new_size; |
|
1971 |
}
|
|
1972 |
||
1973 |
global_system_variables.dynamic_variables_head= offset; |
|
1974 |
max_system_variables.dynamic_variables_head= offset; |
|
1975 |
global_system_variables.dynamic_variables_size= offset + size; |
|
1976 |
max_system_variables.dynamic_variables_size= offset + size; |
|
1977 |
global_system_variables.dynamic_variables_version++; |
|
1978 |
max_system_variables.dynamic_variables_version++; |
|
1979 |
||
1980 |
result->version= global_system_variables.dynamic_variables_version; |
|
1981 |
||
1982 |
/* this should succeed because we have already checked if a dup exists */
|
|
1983 |
if (my_hash_insert(&bookmark_hash, (uchar*) result)) |
|
1984 |
{
|
|
1985 |
fprintf(stderr, "failed to add placeholder to hash"); |
|
1986 |
DBUG_ASSERT(0); |
|
1987 |
}
|
|
1988 |
}
|
|
1989 |
my_afree(varname); |
|
1990 |
return result; |
|
1991 |
}
|
|
1992 |
||
1993 |
||
1994 |
/*
|
|
1995 |
returns a pointer to the memory which holds the thd-local variable or
|
|
1996 |
a pointer to the global variable if thd==null.
|
|
1997 |
If required, will sync with global variables if the requested variable
|
|
1998 |
has not yet been allocated in the current thread.
|
|
1999 |
*/
|
|
2000 |
static uchar *intern_sys_var_ptr(THD* thd, int offset, bool global_lock) |
|
2001 |
{
|
|
2002 |
DBUG_ASSERT(offset >= 0); |
|
2003 |
DBUG_ASSERT((uint)offset <= global_system_variables.dynamic_variables_head); |
|
2004 |
||
2005 |
if (!thd) |
|
2006 |
return (uchar*) global_system_variables.dynamic_variables_ptr + offset; |
|
2007 |
||
2008 |
/*
|
|
2009 |
dynamic_variables_head points to the largest valid offset
|
|
2010 |
*/
|
|
2011 |
if (!thd->variables.dynamic_variables_ptr || |
|
2012 |
(uint)offset > thd->variables.dynamic_variables_head) |
|
2013 |
{
|
|
2014 |
uint idx; |
|
2015 |
||
2016 |
rw_rdlock(&LOCK_system_variables_hash); |
|
2017 |
||
2018 |
thd->variables.dynamic_variables_ptr= (char*) |
|
2019 |
my_realloc(thd->variables.dynamic_variables_ptr, |
|
2020 |
global_variables_dynamic_size, |
|
2021 |
MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); |
|
2022 |
||
2023 |
if (global_lock) |
|
2024 |
pthread_mutex_lock(&LOCK_global_system_variables); |
|
2025 |
||
2026 |
safe_mutex_assert_owner(&LOCK_global_system_variables); |
|
2027 |
||
2028 |
memcpy(thd->variables.dynamic_variables_ptr + |
|
2029 |
thd->variables.dynamic_variables_size, |
|
2030 |
global_system_variables.dynamic_variables_ptr + |
|
2031 |
thd->variables.dynamic_variables_size, |
|
2032 |
global_system_variables.dynamic_variables_size - |
|
2033 |
thd->variables.dynamic_variables_size); |
|
2034 |
||
2035 |
/*
|
|
2036 |
now we need to iterate through any newly copied 'defaults'
|
|
2037 |
and if it is a string type with MEMALLOC flag, we need to strdup
|
|
2038 |
*/
|
|
2039 |
for (idx= 0; idx < bookmark_hash.records; idx++) |
|
2040 |
{
|
|
2041 |
sys_var_pluginvar *pi; |
|
2042 |
sys_var *var; |
|
2043 |
st_bookmark *v= (st_bookmark*) hash_element(&bookmark_hash,idx); |
|
2044 |
||
2045 |
if (v->version <= thd->variables.dynamic_variables_version || |
|
2046 |
!(var= intern_find_sys_var(v->key + 1, v->name_len, true)) || |
|
2047 |
!(pi= var->cast_pluginvar()) || |
|
2048 |
v->key[0] != (pi->plugin_var->flags & PLUGIN_VAR_TYPEMASK)) |
|
2049 |
continue; |
|
2050 |
||
2051 |
/* Here we do anything special that may be required of the data types */
|
|
2052 |
||
2053 |
if ((pi->plugin_var->flags & PLUGIN_VAR_TYPEMASK) == PLUGIN_VAR_STR && |
|
2054 |
pi->plugin_var->flags & PLUGIN_VAR_MEMALLOC) |
|
2055 |
{
|
|
2056 |
char **pp= (char**) (thd->variables.dynamic_variables_ptr + |
|
2057 |
*(int*)(pi->plugin_var + 1)); |
|
2058 |
if ((*pp= *(char**) (global_system_variables.dynamic_variables_ptr + |
|
2059 |
*(int*)(pi->plugin_var + 1)))) |
|
2060 |
*pp= my_strdup(*pp, MYF(MY_WME|MY_FAE)); |
|
2061 |
}
|
|
2062 |
}
|
|
2063 |
||
2064 |
if (global_lock) |
|
2065 |
pthread_mutex_unlock(&LOCK_global_system_variables); |
|
2066 |
||
2067 |
thd->variables.dynamic_variables_version= |
|
2068 |
global_system_variables.dynamic_variables_version; |
|
2069 |
thd->variables.dynamic_variables_head= |
|
2070 |
global_system_variables.dynamic_variables_head; |
|
2071 |
thd->variables.dynamic_variables_size= |
|
2072 |
global_system_variables.dynamic_variables_size; |
|
2073 |
||
2074 |
rw_unlock(&LOCK_system_variables_hash); |
|
2075 |
}
|
|
2076 |
return (uchar*)thd->variables.dynamic_variables_ptr + offset; |
|
2077 |
}
|
|
2078 |
||
2079 |
static uchar *mysql_sys_var_ptr(void* a_thd, int offset) |
|
2080 |
{
|
|
2081 |
return intern_sys_var_ptr((THD *)a_thd, offset, true); |
|
2082 |
}
|
|
2083 |
||
2084 |
||
2085 |
void plugin_thdvar_init(THD *thd) |
|
2086 |
{
|
|
2087 |
plugin_ref old_table_plugin= thd->variables.table_plugin; |
|
2088 |
DBUG_ENTER("plugin_thdvar_init"); |
|
2089 |
||
2090 |
thd->variables.table_plugin= NULL; |
|
2091 |
cleanup_variables(thd, &thd->variables); |
|
2092 |
||
2093 |
thd->variables= global_system_variables; |
|
2094 |
thd->variables.table_plugin= NULL; |
|
2095 |
||
2096 |
/* we are going to allocate these lazily */
|
|
2097 |
thd->variables.dynamic_variables_version= 0; |
|
2098 |
thd->variables.dynamic_variables_size= 0; |
|
2099 |
thd->variables.dynamic_variables_ptr= 0; |
|
2100 |
||
2101 |
thd->variables.table_plugin= |
|
2102 |
my_intern_plugin_lock(NULL, global_system_variables.table_plugin); |
|
2103 |
intern_plugin_unlock(NULL, old_table_plugin); |
|
2104 |
DBUG_VOID_RETURN; |
|
2105 |
}
|
|
2106 |
||
2107 |
||
2108 |
/*
|
|
2109 |
Unlocks all system variables which hold a reference
|
|
2110 |
*/
|
|
2111 |
static void unlock_variables(THD *thd, struct system_variables *vars) |
|
2112 |
{
|
|
2113 |
intern_plugin_unlock(NULL, vars->table_plugin); |
|
2114 |
vars->table_plugin= NULL; |
|
2115 |
}
|
|
2116 |
||
2117 |
||
2118 |
/*
|
|
2119 |
Frees memory used by system variables
|
|
2120 |
||
2121 |
Unlike plugin_vars_free_values() it frees all variables of all plugins,
|
|
2122 |
it's used on shutdown.
|
|
2123 |
*/
|
|
2124 |
static void cleanup_variables(THD *thd, struct system_variables *vars) |
|
2125 |
{
|
|
2126 |
st_bookmark *v; |
|
2127 |
sys_var_pluginvar *pivar; |
|
2128 |
sys_var *var; |
|
2129 |
int flags; |
|
2130 |
uint idx; |
|
2131 |
||
2132 |
rw_rdlock(&LOCK_system_variables_hash); |
|
2133 |
for (idx= 0; idx < bookmark_hash.records; idx++) |
|
2134 |
{
|
|
2135 |
v= (st_bookmark*) hash_element(&bookmark_hash, idx); |
|
2136 |
if (v->version > vars->dynamic_variables_version || |
|
2137 |
!(var= intern_find_sys_var(v->key + 1, v->name_len, true)) || |
|
2138 |
!(pivar= var->cast_pluginvar()) || |
|
2139 |
v->key[0] != (pivar->plugin_var->flags & PLUGIN_VAR_TYPEMASK)) |
|
2140 |
continue; |
|
2141 |
||
2142 |
flags= pivar->plugin_var->flags; |
|
2143 |
||
2144 |
if ((flags & PLUGIN_VAR_TYPEMASK) == PLUGIN_VAR_STR && |
|
2145 |
flags & PLUGIN_VAR_THDLOCAL && flags & PLUGIN_VAR_MEMALLOC) |
|
2146 |
{
|
|
2147 |
char **ptr= (char**) pivar->real_value_ptr(thd, OPT_SESSION); |
|
2148 |
my_free(*ptr, MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); |
|
2149 |
*ptr= NULL; |
|
2150 |
}
|
|
2151 |
}
|
|
2152 |
rw_unlock(&LOCK_system_variables_hash); |
|
2153 |
||
2154 |
DBUG_ASSERT(vars->table_plugin == NULL); |
|
2155 |
||
2156 |
my_free(vars->dynamic_variables_ptr, MYF(MY_ALLOW_ZERO_PTR)); |
|
2157 |
vars->dynamic_variables_ptr= NULL; |
|
2158 |
vars->dynamic_variables_size= 0; |
|
2159 |
vars->dynamic_variables_version= 0; |
|
2160 |
}
|
|
2161 |
||
2162 |
||
2163 |
void plugin_thdvar_cleanup(THD *thd) |
|
2164 |
{
|
|
2165 |
uint idx; |
|
2166 |
plugin_ref *list; |
|
2167 |
DBUG_ENTER("plugin_thdvar_cleanup"); |
|
2168 |
||
2169 |
unlock_variables(thd, &thd->variables); |
|
2170 |
cleanup_variables(thd, &thd->variables); |
|
2171 |
||
2172 |
if ((idx= thd->lex->plugins.elements)) |
|
2173 |
{
|
|
2174 |
list= ((plugin_ref*) thd->lex->plugins.buffer) + idx - 1; |
|
2175 |
DBUG_PRINT("info",("unlocking %d plugins", idx)); |
|
2176 |
while ((uchar*) list >= thd->lex->plugins.buffer) |
|
2177 |
intern_plugin_unlock(NULL, *list--); |
|
2178 |
}
|
|
2179 |
||
2180 |
reap_plugins(); |
|
2181 |
||
2182 |
reset_dynamic(&thd->lex->plugins); |
|
2183 |
||
2184 |
DBUG_VOID_RETURN; |
|
2185 |
}
|
|
2186 |
||
2187 |
||
2188 |
/**
|
|
2189 |
@brief Free values of thread variables of a plugin.
|
|
2190 |
||
2191 |
This must be called before a plugin is deleted. Otherwise its
|
|
2192 |
variables are no longer accessible and the value space is lost. Note
|
|
2193 |
that only string values with PLUGIN_VAR_MEMALLOC are allocated and
|
|
2194 |
must be freed.
|
|
2195 |
||
2196 |
@param[in] vars Chain of system variables of a plugin
|
|
2197 |
*/
|
|
2198 |
||
2199 |
static void plugin_vars_free_values(sys_var *vars) |
|
2200 |
{
|
|
2201 |
DBUG_ENTER("plugin_vars_free_values"); |
|
2202 |
||
2203 |
for (sys_var *var= vars; var; var= var->next) |
|
2204 |
{
|
|
2205 |
sys_var_pluginvar *piv= var->cast_pluginvar(); |
|
2206 |
if (piv && |
|
2207 |
((piv->plugin_var->flags & PLUGIN_VAR_TYPEMASK) == PLUGIN_VAR_STR) && |
|
2208 |
(piv->plugin_var->flags & PLUGIN_VAR_MEMALLOC)) |
|
2209 |
{
|
|
2210 |
/* Free the string from global_system_variables. */
|
|
2211 |
char **valptr= (char**) piv->real_value_ptr(NULL, OPT_GLOBAL); |
|
2212 |
DBUG_PRINT("plugin", ("freeing value for: '%s' addr: 0x%lx", |
|
2213 |
var->name, (long) valptr)); |
|
2214 |
my_free(*valptr, MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); |
|
2215 |
*valptr= NULL; |
|
2216 |
}
|
|
2217 |
}
|
|
2218 |
DBUG_VOID_RETURN; |
|
2219 |
}
|
|
2220 |
||
2221 |
||
2222 |
bool sys_var_pluginvar::check_update_type(Item_result type) |
|
2223 |
{
|
|
2224 |
if (is_readonly()) |
|
2225 |
return 1; |
|
2226 |
switch (plugin_var->flags & PLUGIN_VAR_TYPEMASK) { |
|
2227 |
case PLUGIN_VAR_INT: |
|
2228 |
case PLUGIN_VAR_LONG: |
|
2229 |
case PLUGIN_VAR_LONGLONG: |
|
2230 |
return type != INT_RESULT; |
|
2231 |
case PLUGIN_VAR_STR: |
|
2232 |
return type != STRING_RESULT; |
|
2233 |
default: |
|
2234 |
return 0; |
|
2235 |
}
|
|
2236 |
}
|
|
2237 |
||
2238 |
||
2239 |
SHOW_TYPE sys_var_pluginvar::show_type() |
|
2240 |
{
|
|
2241 |
switch (plugin_var->flags & PLUGIN_VAR_TYPEMASK) { |
|
2242 |
case PLUGIN_VAR_BOOL: |
|
2243 |
return SHOW_MY_BOOL; |
|
2244 |
case PLUGIN_VAR_INT: |
|
2245 |
return SHOW_INT; |
|
2246 |
case PLUGIN_VAR_LONG: |
|
2247 |
return SHOW_LONG; |
|
2248 |
case PLUGIN_VAR_LONGLONG: |
|
2249 |
return SHOW_LONGLONG; |
|
2250 |
case PLUGIN_VAR_STR: |
|
2251 |
return SHOW_CHAR_PTR; |
|
2252 |
case PLUGIN_VAR_ENUM: |
|
2253 |
case PLUGIN_VAR_SET: |
|
2254 |
return SHOW_CHAR; |
|
2255 |
default: |
|
2256 |
DBUG_ASSERT(0); |
|
2257 |
return SHOW_UNDEF; |
|
2258 |
}
|
|
2259 |
}
|
|
2260 |
||
2261 |
||
2262 |
uchar* sys_var_pluginvar::real_value_ptr(THD *thd, enum_var_type type) |
|
2263 |
{
|
|
2264 |
DBUG_ASSERT(thd || (type == OPT_GLOBAL)); |
|
2265 |
if (plugin_var->flags & PLUGIN_VAR_THDLOCAL) |
|
2266 |
{
|
|
2267 |
if (type == OPT_GLOBAL) |
|
2268 |
thd= NULL; |
|
2269 |
||
2270 |
return intern_sys_var_ptr(thd, *(int*) (plugin_var+1), false); |
|
2271 |
}
|
|
2272 |
return *(uchar**) (plugin_var+1); |
|
2273 |
}
|
|
2274 |
||
2275 |
||
2276 |
TYPELIB* sys_var_pluginvar::plugin_var_typelib(void) |
|
2277 |
{
|
|
2278 |
switch (plugin_var->flags & (PLUGIN_VAR_TYPEMASK | PLUGIN_VAR_THDLOCAL)) { |
|
2279 |
case PLUGIN_VAR_ENUM: |
|
2280 |
return ((sysvar_enum_t *)plugin_var)->typelib; |
|
2281 |
case PLUGIN_VAR_SET: |
|
2282 |
return ((sysvar_set_t *)plugin_var)->typelib; |
|
2283 |
case PLUGIN_VAR_ENUM | PLUGIN_VAR_THDLOCAL: |
|
2284 |
return ((thdvar_enum_t *)plugin_var)->typelib; |
|
2285 |
case PLUGIN_VAR_SET | PLUGIN_VAR_THDLOCAL: |
|
2286 |
return ((thdvar_set_t *)plugin_var)->typelib; |
|
2287 |
default: |
|
2288 |
return NULL; |
|
2289 |
}
|
|
2290 |
return NULL; |
|
2291 |
}
|
|
2292 |
||
2293 |
||
2294 |
uchar* sys_var_pluginvar::value_ptr(THD *thd, enum_var_type type, |
|
2295 |
LEX_STRING *base) |
|
2296 |
{
|
|
2297 |
uchar* result; |
|
2298 |
||
2299 |
result= real_value_ptr(thd, type); |
|
2300 |
||
2301 |
if ((plugin_var->flags & PLUGIN_VAR_TYPEMASK) == PLUGIN_VAR_ENUM) |
|
2302 |
result= (uchar*) get_type(plugin_var_typelib(), *(ulong*)result); |
|
2303 |
else if ((plugin_var->flags & PLUGIN_VAR_TYPEMASK) == PLUGIN_VAR_SET) |
|
2304 |
{
|
|
2305 |
char buffer[STRING_BUFFER_USUAL_SIZE]; |
|
2306 |
String str(buffer, sizeof(buffer), system_charset_info); |
|
2307 |
TYPELIB *typelib= plugin_var_typelib(); |
|
2308 |
ulonglong mask= 1, value= *(ulonglong*) result; |
|
2309 |
uint i; |
|
2310 |
||
2311 |
str.length(0); |
|
2312 |
for (i= 0; i < typelib->count; i++, mask<<=1) |
|
2313 |
{
|
|
2314 |
if (!(value & mask)) |
|
2315 |
continue; |
|
2316 |
str.append(typelib->type_names[i], typelib->type_lengths[i]); |
|
2317 |
str.append(','); |
|
2318 |
}
|
|
2319 |
||
2320 |
result= (uchar*) ""; |
|
2321 |
if (str.length()) |
|
2322 |
result= (uchar*) thd->strmake(str.ptr(), str.length()-1); |
|
2323 |
}
|
|
2324 |
return result; |
|
2325 |
}
|
|
2326 |
||
2327 |
||
2328 |
bool sys_var_pluginvar::check(THD *thd, set_var *var) |
|
2329 |
{
|
|
2330 |
st_item_value_holder value; |
|
2331 |
DBUG_ASSERT(is_readonly() || plugin_var->check); |
|
2332 |
||
2333 |
value.value_type= item_value_type; |
|
2334 |
value.val_str= item_val_str; |
|
2335 |
value.val_int= item_val_int; |
|
2336 |
value.val_real= item_val_real; |
|
2337 |
value.item= var->value; |
|
2338 |
||
2339 |
return is_readonly() || |
|
2340 |
plugin_var->check(thd, plugin_var, &var->save_result, &value); |
|
2341 |
}
|
|
2342 |
||
2343 |
||
2344 |
void sys_var_pluginvar::set_default(THD *thd, enum_var_type type) |
|
2345 |
{
|
|
2346 |
const void *src; |
|
2347 |
void *tgt; |
|
2348 |
||
2349 |
DBUG_ASSERT(is_readonly() || plugin_var->update); |
|
2350 |
||
2351 |
if (is_readonly()) |
|
2352 |
return; |
|
2353 |
||
2354 |
pthread_mutex_lock(&LOCK_global_system_variables); |
|
2355 |
tgt= real_value_ptr(thd, type); |
|
2356 |
src= ((void **) (plugin_var + 1) + 1); |
|
2357 |
||
2358 |
if (plugin_var->flags & PLUGIN_VAR_THDLOCAL) |
|
2359 |
{
|
|
2360 |
if (type != OPT_GLOBAL) |
|
2361 |
src= real_value_ptr(thd, OPT_GLOBAL); |
|
2362 |
else
|
|
2363 |
switch (plugin_var->flags & PLUGIN_VAR_TYPEMASK) { |
|
2364 |
case PLUGIN_VAR_INT: |
|
2365 |
src= &((thdvar_uint_t*) plugin_var)->def_val; |
|
2366 |
break; |
|
2367 |
case PLUGIN_VAR_LONG: |
|
2368 |
src= &((thdvar_ulong_t*) plugin_var)->def_val; |
|
2369 |
break; |
|
2370 |
case PLUGIN_VAR_LONGLONG: |
|
2371 |
src= &((thdvar_ulonglong_t*) plugin_var)->def_val; |
|
2372 |
break; |
|
2373 |
case PLUGIN_VAR_ENUM: |
|
2374 |
src= &((thdvar_enum_t*) plugin_var)->def_val; |
|
2375 |
break; |
|
2376 |
case PLUGIN_VAR_SET: |
|
2377 |
src= &((thdvar_set_t*) plugin_var)->def_val; |
|
2378 |
break; |
|
2379 |
case PLUGIN_VAR_BOOL: |
|
2380 |
src= &((thdvar_bool_t*) plugin_var)->def_val; |
|
2381 |
break; |
|
2382 |
case PLUGIN_VAR_STR: |
|
2383 |
src= &((thdvar_str_t*) plugin_var)->def_val; |
|
2384 |
break; |
|
2385 |
default: |
|
2386 |
DBUG_ASSERT(0); |
|
2387 |
}
|
|
2388 |
}
|
|
2389 |
||
2390 |
/* thd must equal current_thd if PLUGIN_VAR_THDLOCAL flag is set */
|
|
2391 |
DBUG_ASSERT(!(plugin_var->flags & PLUGIN_VAR_THDLOCAL) || |
|
2392 |
thd == current_thd); |
|
2393 |
||
2394 |
if (!(plugin_var->flags & PLUGIN_VAR_THDLOCAL) || type == OPT_GLOBAL) |
|
2395 |
{
|
|
2396 |
plugin_var->update(thd, plugin_var, tgt, src); |
|
2397 |
pthread_mutex_unlock(&LOCK_global_system_variables); |
|
2398 |
}
|
|
2399 |
else
|
|
2400 |
{
|
|
2401 |
pthread_mutex_unlock(&LOCK_global_system_variables); |
|
2402 |
plugin_var->update(thd, plugin_var, tgt, src); |
|
2403 |
}
|
|
2404 |
}
|
|
2405 |
||
2406 |
||
2407 |
bool sys_var_pluginvar::update(THD *thd, set_var *var) |
|
2408 |
{
|
|
2409 |
void *tgt; |
|
2410 |
||
2411 |
DBUG_ASSERT(is_readonly() || plugin_var->update); |
|
2412 |
||
2413 |
/* thd must equal current_thd if PLUGIN_VAR_THDLOCAL flag is set */
|
|
2414 |
DBUG_ASSERT(!(plugin_var->flags & PLUGIN_VAR_THDLOCAL) || |
|
2415 |
thd == current_thd); |
|
2416 |
||
2417 |
if (is_readonly()) |
|
2418 |
return 1; |
|
2419 |
||
2420 |
pthread_mutex_lock(&LOCK_global_system_variables); |
|
2421 |
tgt= real_value_ptr(thd, var->type); |
|
2422 |
||
2423 |
if (!(plugin_var->flags & PLUGIN_VAR_THDLOCAL) || var->type == OPT_GLOBAL) |
|
2424 |
{
|
|
2425 |
/* variable we are updating has global scope, so we unlock after updating */
|
|
2426 |
plugin_var->update(thd, plugin_var, tgt, &var->save_result); |
|
2427 |
pthread_mutex_unlock(&LOCK_global_system_variables); |
|
2428 |
}
|
|
2429 |
else
|
|
2430 |
{
|
|
2431 |
pthread_mutex_unlock(&LOCK_global_system_variables); |
|
2432 |
plugin_var->update(thd, plugin_var, tgt, &var->save_result); |
|
2433 |
}
|
|
2434 |
return 0; |
|
2435 |
}
|
|
2436 |
||
2437 |
||
2438 |
#define OPTION_SET_LIMITS(type, options, opt) \
|
|
2439 |
options->var_type= type; \
|
|
2440 |
options->def_value= (opt)->def_val; \
|
|
2441 |
options->min_value= (opt)->min_val; \
|
|
2442 |
options->max_value= (opt)->max_val; \
|
|
2443 |
options->block_size= (long) (opt)->blk_sz
|
|
2444 |
||
2445 |
||
2446 |
static void plugin_opt_set_limits(struct my_option *options, |
|
2447 |
const struct st_mysql_sys_var *opt) |
|
2448 |
{
|
|
2449 |
options->sub_size= 0; |
|
2450 |
||
2451 |
switch (opt->flags & (PLUGIN_VAR_TYPEMASK | |
|
2452 |
PLUGIN_VAR_UNSIGNED | PLUGIN_VAR_THDLOCAL)) { |
|
2453 |
/* global system variables */
|
|
2454 |
case PLUGIN_VAR_INT: |
|
2455 |
OPTION_SET_LIMITS(GET_INT, options, (sysvar_int_t*) opt); |
|
2456 |
break; |
|
2457 |
case PLUGIN_VAR_INT | PLUGIN_VAR_UNSIGNED: |
|
2458 |
OPTION_SET_LIMITS(GET_UINT, options, (sysvar_uint_t*) opt); |
|
2459 |
break; |
|
2460 |
case PLUGIN_VAR_LONG: |
|
2461 |
OPTION_SET_LIMITS(GET_LONG, options, (sysvar_long_t*) opt); |
|
2462 |
break; |
|
2463 |
case PLUGIN_VAR_LONG | PLUGIN_VAR_UNSIGNED: |
|
2464 |
OPTION_SET_LIMITS(GET_ULONG, options, (sysvar_ulong_t*) opt); |
|
2465 |
break; |
|
2466 |
case PLUGIN_VAR_LONGLONG: |
|
2467 |
OPTION_SET_LIMITS(GET_LL, options, (sysvar_longlong_t*) opt); |
|
2468 |
break; |
|
2469 |
case PLUGIN_VAR_LONGLONG | PLUGIN_VAR_UNSIGNED: |
|
2470 |
OPTION_SET_LIMITS(GET_ULL, options, (sysvar_ulonglong_t*) opt); |
|
2471 |
break; |
|
2472 |
case PLUGIN_VAR_ENUM: |
|
2473 |
options->var_type= GET_ENUM; |
|
2474 |
options->typelib= ((sysvar_enum_t*) opt)->typelib; |
|
2475 |
options->def_value= ((sysvar_enum_t*) opt)->def_val; |
|
2476 |
options->min_value= options->block_size= 0; |
|
2477 |
options->max_value= options->typelib->count - 1; |
|
2478 |
break; |
|
2479 |
case PLUGIN_VAR_SET: |
|
2480 |
options->var_type= GET_SET; |
|
2481 |
options->typelib= ((sysvar_set_t*) opt)->typelib; |
|
2482 |
options->def_value= ((sysvar_set_t*) opt)->def_val; |
|
2483 |
options->min_value= options->block_size= 0; |
|
2484 |
options->max_value= (ULL(1) << options->typelib->count) - 1; |
|
2485 |
break; |
|
2486 |
case PLUGIN_VAR_BOOL: |
|
2487 |
options->var_type= GET_BOOL; |
|
2488 |
options->def_value= ((sysvar_bool_t*) opt)->def_val; |
|
2489 |
break; |
|
2490 |
case PLUGIN_VAR_STR: |
|
2491 |
options->var_type= ((opt->flags & PLUGIN_VAR_MEMALLOC) ? |
|
2492 |
GET_STR_ALLOC : GET_STR); |
|
2493 |
options->def_value= (intptr) ((sysvar_str_t*) opt)->def_val; |
|
2494 |
break; |
|
2495 |
/* threadlocal variables */
|
|
2496 |
case PLUGIN_VAR_INT | PLUGIN_VAR_THDLOCAL: |
|
2497 |
OPTION_SET_LIMITS(GET_INT, options, (thdvar_int_t*) opt); |
|
2498 |
break; |
|
2499 |
case PLUGIN_VAR_INT | PLUGIN_VAR_UNSIGNED | PLUGIN_VAR_THDLOCAL: |
|
2500 |
OPTION_SET_LIMITS(GET_UINT, options, (thdvar_uint_t*) opt); |
|
2501 |
break; |
|
2502 |
case PLUGIN_VAR_LONG | PLUGIN_VAR_THDLOCAL: |
|
2503 |
OPTION_SET_LIMITS(GET_LONG, options, (thdvar_long_t*) opt); |
|
2504 |
break; |
|
2505 |
case PLUGIN_VAR_LONG | PLUGIN_VAR_UNSIGNED | PLUGIN_VAR_THDLOCAL: |
|
2506 |
OPTION_SET_LIMITS(GET_ULONG, options, (thdvar_ulong_t*) opt); |
|
2507 |
break; |
|
2508 |
case PLUGIN_VAR_LONGLONG | PLUGIN_VAR_THDLOCAL: |
|
2509 |
OPTION_SET_LIMITS(GET_LL, options, (thdvar_longlong_t*) opt); |
|
2510 |
break; |
|
2511 |
case PLUGIN_VAR_LONGLONG | PLUGIN_VAR_UNSIGNED | PLUGIN_VAR_THDLOCAL: |
|
2512 |
OPTION_SET_LIMITS(GET_ULL, options, (thdvar_ulonglong_t*) opt); |
|
2513 |
break; |
|
2514 |
case PLUGIN_VAR_ENUM | PLUGIN_VAR_THDLOCAL: |
|
2515 |
options->var_type= GET_ENUM; |
|
2516 |
options->typelib= ((thdvar_enum_t*) opt)->typelib; |
|
2517 |
options->def_value= ((thdvar_enum_t*) opt)->def_val; |
|
2518 |
options->min_value= options->block_size= 0; |
|
2519 |
options->max_value= options->typelib->count - 1; |
|
2520 |
break; |
|
2521 |
case PLUGIN_VAR_SET | PLUGIN_VAR_THDLOCAL: |
|
2522 |
options->var_type= GET_SET; |
|
2523 |
options->typelib= ((thdvar_set_t*) opt)->typelib; |
|
2524 |
options->def_value= ((thdvar_set_t*) opt)->def_val; |
|
2525 |
options->min_value= options->block_size= 0; |
|
2526 |
options->max_value= (ULL(1) << options->typelib->count) - 1; |
|
2527 |
break; |
|
2528 |
case PLUGIN_VAR_BOOL | PLUGIN_VAR_THDLOCAL: |
|
2529 |
options->var_type= GET_BOOL; |
|
2530 |
options->def_value= ((thdvar_bool_t*) opt)->def_val; |
|
2531 |
break; |
|
2532 |
case PLUGIN_VAR_STR | PLUGIN_VAR_THDLOCAL: |
|
2533 |
options->var_type= ((opt->flags & PLUGIN_VAR_MEMALLOC) ? |
|
2534 |
GET_STR_ALLOC : GET_STR); |
|
2535 |
options->def_value= (intptr) ((thdvar_str_t*) opt)->def_val; |
|
2536 |
break; |
|
2537 |
default: |
|
2538 |
DBUG_ASSERT(0); |
|
2539 |
}
|
|
2540 |
options->arg_type= REQUIRED_ARG; |
|
2541 |
if (opt->flags & PLUGIN_VAR_NOCMDARG) |
|
2542 |
options->arg_type= NO_ARG; |
|
2543 |
if (opt->flags & PLUGIN_VAR_OPCMDARG) |
|
2544 |
options->arg_type= OPT_ARG; |
|
2545 |
}
|
|
2546 |
||
2547 |
extern "C" my_bool get_one_plugin_option(int optid, const struct my_option *, |
|
2548 |
char *); |
|
2549 |
||
2550 |
my_bool get_one_plugin_option(int optid __attribute__((unused)), |
|
2551 |
const struct my_option *opt, |
|
2552 |
char *argument) |
|
2553 |
{
|
|
2554 |
return 0; |
|
2555 |
}
|
|
2556 |
||
2557 |
||
2558 |
static int construct_options(MEM_ROOT *mem_root, struct st_plugin_int *tmp, |
|
2559 |
my_option *options, my_bool **enabled, |
|
2560 |
bool can_disable) |
|
2561 |
{
|
|
2562 |
const char *plugin_name= tmp->plugin->name; |
|
2563 |
uint namelen= strlen(plugin_name), optnamelen; |
|
2564 |
uint buffer_length= namelen * 4 + (can_disable ? 75 : 10); |
|
2565 |
char *name= (char*) alloc_root(mem_root, buffer_length) + 1; |
|
2566 |
char *optname, *p; |
|
2567 |
int index= 0, offset= 0; |
|
2568 |
st_mysql_sys_var *opt, **plugin_option; |
|
2569 |
st_bookmark *v; |
|
2570 |
DBUG_ENTER("construct_options"); |
|
2571 |
DBUG_PRINT("plugin", ("plugin: '%s' enabled: %d can_disable: %d", |
|
2572 |
plugin_name, **enabled, can_disable)); |
|
2573 |
||
2574 |
/* support --skip-plugin-foo syntax */
|
|
2575 |
memcpy(name, plugin_name, namelen + 1); |
|
2576 |
my_casedn_str(&my_charset_latin1, name); |
|
2577 |
strxmov(name + namelen + 1, "plugin-", name, NullS); |
|
2578 |
/* Now we have namelen + 1 + 7 + namelen + 1 == namelen * 2 + 9. */
|
|
2579 |
||
2580 |
for (p= name + namelen*2 + 8; p > name; p--) |
|
2581 |
if (*p == '_') |
|
2582 |
*p= '-'; |
|
2583 |
||
2584 |
if (can_disable) |
|
2585 |
{
|
|
2586 |
strxmov(name + namelen*2 + 10, "Enable ", plugin_name, " plugin. " |
|
2587 |
"Disable with --skip-", name," (will save memory).", NullS); |
|
2588 |
/*
|
|
2589 |
Now we have namelen * 2 + 10 (one char unused) + 7 + namelen + 9 +
|
|
2590 |
20 + namelen + 20 + 1 == namelen * 4 + 67.
|
|
2591 |
*/
|
|
2592 |
||
2593 |
options[0].comment= name + namelen*2 + 10; |
|
2594 |
}
|
|
2595 |
||
2596 |
/*
|
|
2597 |
NOTE: 'name' is one char above the allocated buffer!
|
|
2598 |
NOTE: This code assumes that 'my_bool' and 'char' are of same size.
|
|
2599 |
*/
|
|
2600 |
*((my_bool *)(name -1))= **enabled; |
|
2601 |
*enabled= (my_bool *)(name - 1); |
|
2602 |
||
2603 |
||
2604 |
options[1].name= (options[0].name= name) + namelen + 1; |
|
2605 |
options[0].id= options[1].id= 256; /* must be >255. dup id ok */ |
|
2606 |
options[0].var_type= options[1].var_type= GET_BOOL; |
|
2607 |
options[0].arg_type= options[1].arg_type= NO_ARG; |
|
2608 |
options[0].def_value= options[1].def_value= **enabled; |
|
2609 |
options[0].value= options[0].u_max_value= |
|
2610 |
options[1].value= options[1].u_max_value= (uchar**) (name - 1); |
|
2611 |
options+= 2; |
|
2612 |
||
2613 |
/*
|
|
2614 |
Two passes as the 2nd pass will take pointer addresses for use
|
|
2615 |
by my_getopt and register_var() in the first pass uses realloc
|
|
2616 |
*/
|
|
2617 |
||
2618 |
for (plugin_option= tmp->plugin->system_vars; |
|
2619 |
plugin_option && *plugin_option; plugin_option++, index++) |
|
2620 |
{
|
|
2621 |
opt= *plugin_option; |
|
2622 |
if (!(opt->flags & PLUGIN_VAR_THDLOCAL)) |
|
2623 |
continue; |
|
2624 |
if (!(register_var(name, opt->name, opt->flags))) |
|
2625 |
continue; |
|
2626 |
switch (opt->flags & PLUGIN_VAR_TYPEMASK) { |
|
2627 |
case PLUGIN_VAR_BOOL: |
|
2628 |
SET_PLUGIN_VAR_RESOLVE((thdvar_bool_t *) opt); |
|
2629 |
break; |
|
2630 |
case PLUGIN_VAR_INT: |
|
2631 |
SET_PLUGIN_VAR_RESOLVE((thdvar_int_t *) opt); |
|
2632 |
break; |
|
2633 |
case PLUGIN_VAR_LONG: |
|
2634 |
SET_PLUGIN_VAR_RESOLVE((thdvar_long_t *) opt); |
|
2635 |
break; |
|
2636 |
case PLUGIN_VAR_LONGLONG: |
|
2637 |
SET_PLUGIN_VAR_RESOLVE((thdvar_longlong_t *) opt); |
|
2638 |
break; |
|
2639 |
case PLUGIN_VAR_STR: |
|
2640 |
SET_PLUGIN_VAR_RESOLVE((thdvar_str_t *) opt); |
|
2641 |
break; |
|
2642 |
case PLUGIN_VAR_ENUM: |
|
2643 |
SET_PLUGIN_VAR_RESOLVE((thdvar_enum_t *) opt); |
|
2644 |
break; |
|
2645 |
case PLUGIN_VAR_SET: |
|
2646 |
SET_PLUGIN_VAR_RESOLVE((thdvar_set_t *) opt); |
|
2647 |
break; |
|
2648 |
default: |
|
2649 |
sql_print_error("Unknown variable type code 0x%x in plugin '%s'.", |
|
2650 |
opt->flags, plugin_name); |
|
2651 |
DBUG_RETURN(-1); |
|
2652 |
};
|
|
2653 |
}
|
|
2654 |
||
2655 |
for (plugin_option= tmp->plugin->system_vars; |
|
2656 |
plugin_option && *plugin_option; plugin_option++, index++) |
|
2657 |
{
|
|
2658 |
switch ((opt= *plugin_option)->flags & PLUGIN_VAR_TYPEMASK) { |
|
2659 |
case PLUGIN_VAR_BOOL: |
|
2660 |
if (!opt->check) |
|
2661 |
opt->check= check_func_bool; |
|
2662 |
if (!opt->update) |
|
2663 |
opt->update= update_func_bool; |
|
2664 |
break; |
|
2665 |
case PLUGIN_VAR_INT: |
|
2666 |
if (!opt->check) |
|
2667 |
opt->check= check_func_int; |
|
2668 |
if (!opt->update) |
|
2669 |
opt->update= update_func_int; |
|
2670 |
break; |
|
2671 |
case PLUGIN_VAR_LONG: |
|
2672 |
if (!opt->check) |
|
2673 |
opt->check= check_func_long; |
|
2674 |
if (!opt->update) |
|
2675 |
opt->update= update_func_long; |
|
2676 |
break; |
|
2677 |
case PLUGIN_VAR_LONGLONG: |
|
2678 |
if (!opt->check) |
|
2679 |
opt->check= check_func_longlong; |
|
2680 |
if (!opt->update) |
|
2681 |
opt->update= update_func_longlong; |
|
2682 |
break; |
|
2683 |
case PLUGIN_VAR_STR: |
|
2684 |
if (!opt->check) |
|
2685 |
opt->check= check_func_str; |
|
2686 |
if (!opt->update) |
|
2687 |
{
|
|
2688 |
opt->update= update_func_str; |
|
|
9
by Brian Aker
Warnings cleanup |
2689 |
if ((opt->flags & (PLUGIN_VAR_MEMALLOC | PLUGIN_VAR_READONLY)) == false) |
|
1
by brian
clean slate |
2690 |
{
|
2691 |
opt->flags|= PLUGIN_VAR_READONLY; |
|
2692 |
sql_print_warning("Server variable %s of plugin %s was forced " |
|
2693 |
"to be read-only: string variable without "
|
|
2694 |
"update_func and PLUGIN_VAR_MEMALLOC flag", |
|
2695 |
opt->name, plugin_name); |
|
2696 |
}
|
|
2697 |
}
|
|
2698 |
break; |
|
2699 |
case PLUGIN_VAR_ENUM: |
|
2700 |
if (!opt->check) |
|
2701 |
opt->check= check_func_enum; |
|
2702 |
if (!opt->update) |
|
2703 |
opt->update= update_func_long; |
|
2704 |
break; |
|
2705 |
case PLUGIN_VAR_SET: |
|
2706 |
if (!opt->check) |
|
2707 |
opt->check= check_func_set; |
|
2708 |
if (!opt->update) |
|
2709 |
opt->update= update_func_longlong; |
|
2710 |
break; |
|
2711 |
default: |
|
2712 |
sql_print_error("Unknown variable type code 0x%x in plugin '%s'.", |
|
2713 |
opt->flags, plugin_name); |
|
2714 |
DBUG_RETURN(-1); |
|
2715 |
}
|
|
2716 |
||
2717 |
if ((opt->flags & (PLUGIN_VAR_NOCMDOPT | PLUGIN_VAR_THDLOCAL)) |
|
2718 |
== PLUGIN_VAR_NOCMDOPT) |
|
2719 |
continue; |
|
2720 |
||
2721 |
if (!opt->name) |
|
2722 |
{
|
|
2723 |
sql_print_error("Missing variable name in plugin '%s'.", |
|
2724 |
plugin_name); |
|
2725 |
DBUG_RETURN(-1); |
|
2726 |
}
|
|
2727 |
||
2728 |
if (!(opt->flags & PLUGIN_VAR_THDLOCAL)) |
|
2729 |
{
|
|
2730 |
optnamelen= strlen(opt->name); |
|
2731 |
optname= (char*) alloc_root(mem_root, namelen + optnamelen + 2); |
|
2732 |
strxmov(optname, name, "-", opt->name, NullS); |
|
2733 |
optnamelen= namelen + optnamelen + 1; |
|
2734 |
}
|
|
2735 |
else
|
|
2736 |
{
|
|
2737 |
/* this should not fail because register_var should create entry */
|
|
2738 |
if (!(v= find_bookmark(name, opt->name, opt->flags))) |
|
2739 |
{
|
|
2740 |
sql_print_error("Thread local variable '%s' not allocated " |
|
2741 |
"in plugin '%s'.", opt->name, plugin_name); |
|
2742 |
DBUG_RETURN(-1); |
|
2743 |
}
|
|
2744 |
||
2745 |
*(int*)(opt + 1)= offset= v->offset; |
|
2746 |
||
2747 |
if (opt->flags & PLUGIN_VAR_NOCMDOPT) |
|
2748 |
continue; |
|
2749 |
||
2750 |
optname= (char*) memdup_root(mem_root, v->key + 1, |
|
2751 |
(optnamelen= v->name_len) + 1); |
|
2752 |
}
|
|
2753 |
||
2754 |
/* convert '_' to '-' */
|
|
2755 |
for (p= optname; *p; p++) |
|
2756 |
if (*p == '_') |
|
2757 |
*p= '-'; |
|
2758 |
||
2759 |
options->name= optname; |
|
2760 |
options->comment= opt->comment; |
|
2761 |
options->app_type= opt; |
|
2762 |
options->id= (options-1)->id + 1; |
|
2763 |
||
2764 |
plugin_opt_set_limits(options, opt); |
|
2765 |
||
2766 |
if (opt->flags & PLUGIN_VAR_THDLOCAL) |
|
2767 |
options->value= options->u_max_value= (uchar**) |
|
2768 |
(global_system_variables.dynamic_variables_ptr + offset); |
|
2769 |
else
|
|
2770 |
options->value= options->u_max_value= *(uchar***) (opt + 1); |
|
2771 |
||
2772 |
options[1]= options[0]; |
|
2773 |
options[1].name= p= (char*) alloc_root(mem_root, optnamelen + 8); |
|
2774 |
options[1].comment= 0; // hidden |
|
2775 |
strxmov(p, "plugin-", optname, NullS); |
|
2776 |
||
2777 |
options+= 2; |
|
2778 |
}
|
|
2779 |
||
2780 |
DBUG_RETURN(0); |
|
2781 |
}
|
|
2782 |
||
2783 |
||
2784 |
static my_option *construct_help_options(MEM_ROOT *mem_root, |
|
2785 |
struct st_plugin_int *p) |
|
2786 |
{
|
|
2787 |
st_mysql_sys_var **opt; |
|
2788 |
my_option *opts; |
|
2789 |
my_bool dummy, can_disable; |
|
2790 |
my_bool *dummy2= &dummy; |
|
2791 |
uint count= EXTRA_OPTIONS; |
|
2792 |
DBUG_ENTER("construct_help_options"); |
|
2793 |
||
|
9
by Brian Aker
Warnings cleanup |
2794 |
for (opt= p->plugin->system_vars; opt && *opt; opt++, count+= 2) {}; |
|
1
by brian
clean slate |
2795 |
|
2796 |
if (!(opts= (my_option*) alloc_root(mem_root, sizeof(my_option) * count))) |
|
2797 |
DBUG_RETURN(NULL); |
|
2798 |
||
2799 |
bzero(opts, sizeof(my_option) * count); |
|
2800 |
||
2801 |
dummy= TRUE; /* plugin is enabled. */ |
|
2802 |
||
2803 |
can_disable= |
|
2804 |
my_strcasecmp(&my_charset_latin1, p->name.str, "MyISAM") && |
|
2805 |
my_strcasecmp(&my_charset_latin1, p->name.str, "MEMORY"); |
|
2806 |
||
2807 |
if (construct_options(mem_root, p, opts, &dummy2, can_disable)) |
|
2808 |
DBUG_RETURN(NULL); |
|
2809 |
||
2810 |
DBUG_RETURN(opts); |
|
2811 |
}
|
|
2812 |
||
2813 |
||
2814 |
/*
|
|
2815 |
SYNOPSIS
|
|
2816 |
test_plugin_options()
|
|
2817 |
tmp_root temporary scratch space
|
|
2818 |
plugin internal plugin structure
|
|
2819 |
argc user supplied arguments
|
|
2820 |
argv user supplied arguments
|
|
2821 |
default_enabled default plugin enable status
|
|
2822 |
RETURNS:
|
|
2823 |
0 SUCCESS - plugin should be enabled/loaded
|
|
2824 |
NOTE:
|
|
2825 |
Requires that a write-lock is held on LOCK_system_variables_hash
|
|
2826 |
*/
|
|
2827 |
static int test_plugin_options(MEM_ROOT *tmp_root, struct st_plugin_int *tmp, |
|
2828 |
int *argc, char **argv, my_bool default_enabled) |
|
2829 |
{
|
|
2830 |
struct sys_var_chain chain= { NULL, NULL }; |
|
2831 |
my_bool enabled_saved= default_enabled, can_disable; |
|
2832 |
my_bool *enabled= &default_enabled; |
|
2833 |
MEM_ROOT *mem_root= alloc_root_inited(&tmp->mem_root) ? |
|
2834 |
&tmp->mem_root : &plugin_mem_root; |
|
2835 |
st_mysql_sys_var **opt; |
|
2836 |
my_option *opts= NULL; |
|
2837 |
char *p, *varname; |
|
2838 |
int error; |
|
2839 |
st_mysql_sys_var *o; |
|
2840 |
sys_var *v; |
|
2841 |
struct st_bookmark *var; |
|
2842 |
uint len, count= EXTRA_OPTIONS; |
|
2843 |
DBUG_ENTER("test_plugin_options"); |
|
2844 |
DBUG_ASSERT(tmp->plugin && tmp->name.str); |
|
2845 |
||
2846 |
for (opt= tmp->plugin->system_vars; opt && *opt; opt++) |
|
2847 |
count+= 2; /* --{plugin}-{optname} and --plugin-{plugin}-{optname} */ |
|
2848 |
||
2849 |
can_disable= |
|
2850 |
my_strcasecmp(&my_charset_latin1, tmp->name.str, "MyISAM") && |
|
2851 |
my_strcasecmp(&my_charset_latin1, tmp->name.str, "MEMORY"); |
|
2852 |
||
2853 |
if (count > EXTRA_OPTIONS || (*argc > 1)) |
|
2854 |
{
|
|
2855 |
if (!(opts= (my_option*) alloc_root(tmp_root, sizeof(my_option) * count))) |
|
2856 |
{
|
|
2857 |
sql_print_error("Out of memory for plugin '%s'.", tmp->name.str); |
|
2858 |
DBUG_RETURN(-1); |
|
2859 |
}
|
|
2860 |
bzero(opts, sizeof(my_option) * count); |
|
2861 |
||
2862 |
if (construct_options(tmp_root, tmp, opts, &enabled, can_disable)) |
|
2863 |
{
|
|
2864 |
sql_print_error("Bad options for plugin '%s'.", tmp->name.str); |
|
2865 |
DBUG_RETURN(-1); |
|
2866 |
}
|
|
2867 |
||
2868 |
error= handle_options(argc, &argv, opts, get_one_plugin_option); |
|
2869 |
(*argc)++; /* add back one for the program name */ |
|
2870 |
||
2871 |
if (error) |
|
2872 |
{
|
|
2873 |
sql_print_error("Parsing options for plugin '%s' failed.", |
|
2874 |
tmp->name.str); |
|
2875 |
goto err; |
|
2876 |
}
|
|
2877 |
}
|
|
2878 |
||
2879 |
if (!*enabled && !can_disable) |
|
2880 |
{
|
|
2881 |
sql_print_warning("Plugin '%s' cannot be disabled", tmp->name.str); |
|
2882 |
*enabled= TRUE; |
|
2883 |
}
|
|
2884 |
||
2885 |
error= 1; |
|
2886 |
||
2887 |
if (*enabled) |
|
2888 |
{
|
|
2889 |
for (opt= tmp->plugin->system_vars; opt && *opt; opt++) |
|
2890 |
{
|
|
2891 |
if (((o= *opt)->flags & PLUGIN_VAR_NOSYSVAR)) |
|
2892 |
continue; |
|
2893 |
||
2894 |
if ((var= find_bookmark(tmp->name.str, o->name, o->flags))) |
|
2895 |
v= new (mem_root) sys_var_pluginvar(var->key + 1, o); |
|
2896 |
else
|
|
2897 |
{
|
|
2898 |
len= tmp->name.length + strlen(o->name) + 2; |
|
2899 |
varname= (char*) alloc_root(mem_root, len); |
|
2900 |
strxmov(varname, tmp->name.str, "-", o->name, NullS); |
|
2901 |
my_casedn_str(&my_charset_latin1, varname); |
|
2902 |
||
2903 |
for (p= varname; *p; p++) |
|
2904 |
if (*p == '-') |
|
2905 |
*p= '_'; |
|
2906 |
||
2907 |
v= new (mem_root) sys_var_pluginvar(varname, o); |
|
2908 |
}
|
|
2909 |
DBUG_ASSERT(v); /* check that an object was actually constructed */ |
|
2910 |
||
2911 |
/*
|
|
2912 |
Add to the chain of variables.
|
|
2913 |
Done like this for easier debugging so that the
|
|
2914 |
pointer to v is not lost on optimized builds.
|
|
2915 |
*/
|
|
2916 |
v->chain_sys_var(&chain); |
|
2917 |
}
|
|
2918 |
if (chain.first) |
|
2919 |
{
|
|
2920 |
chain.last->next = NULL; |
|
2921 |
if (mysql_add_sys_var_chain(chain.first, NULL)) |
|
2922 |
{
|
|
2923 |
sql_print_error("Plugin '%s' has conflicting system variables", |
|
2924 |
tmp->name.str); |
|
2925 |
goto err; |
|
2926 |
}
|
|
2927 |
tmp->system_vars= chain.first; |
|
2928 |
}
|
|
2929 |
DBUG_RETURN(0); |
|
2930 |
}
|
|
2931 |
||
2932 |
if (enabled_saved && global_system_variables.log_warnings) |
|
2933 |
sql_print_information("Plugin '%s' disabled by command line option", |
|
2934 |
tmp->name.str); |
|
2935 |
err: |
|
2936 |
if (opts) |
|
2937 |
my_cleanup_options(opts); |
|
2938 |
DBUG_RETURN(error); |
|
2939 |
}
|
|
2940 |
||
2941 |
||
2942 |
/****************************************************************************
|
|
2943 |
Help Verbose text with Plugin System Variables
|
|
2944 |
****************************************************************************/
|
|
2945 |
||
2946 |
static int option_cmp(my_option *a, my_option *b) |
|
2947 |
{
|
|
2948 |
return my_strcasecmp(&my_charset_latin1, a->name, b->name); |
|
2949 |
}
|
|
2950 |
||
2951 |
||
2952 |
void my_print_help_inc_plugins(my_option *main_options, uint size) |
|
2953 |
{
|
|
2954 |
DYNAMIC_ARRAY all_options; |
|
2955 |
struct st_plugin_int *p; |
|
2956 |
MEM_ROOT mem_root; |
|
2957 |
my_option *opt; |
|
2958 |
||
2959 |
init_alloc_root(&mem_root, 4096, 4096); |
|
2960 |
my_init_dynamic_array(&all_options, sizeof(my_option), size, size/4); |
|
2961 |
||
2962 |
if (initialized) |
|
2963 |
for (uint idx= 0; idx < plugin_array.elements; idx++) |
|
2964 |
{
|
|
2965 |
p= *dynamic_element(&plugin_array, idx, struct st_plugin_int **); |
|
2966 |
||
2967 |
if (!p->plugin->system_vars || |
|
2968 |
!(opt= construct_help_options(&mem_root, p))) |
|
2969 |
continue; |
|
2970 |
||
2971 |
/* Only options with a non-NULL comment are displayed in help text */
|
|
2972 |
for (;opt->id; opt++) |
|
2973 |
if (opt->comment) |
|
2974 |
insert_dynamic(&all_options, (uchar*) opt); |
|
2975 |
}
|
|
2976 |
||
2977 |
for (;main_options->id; main_options++) |
|
2978 |
insert_dynamic(&all_options, (uchar*) main_options); |
|
2979 |
||
2980 |
sort_dynamic(&all_options, (qsort_cmp) option_cmp); |
|
2981 |
||
2982 |
/* main_options now points to the empty option terminator */
|
|
2983 |
insert_dynamic(&all_options, (uchar*) main_options); |
|
2984 |
||
2985 |
my_print_help((my_option*) all_options.buffer); |
|
2986 |
my_print_variables((my_option*) all_options.buffer); |
|
2987 |
||
2988 |
delete_dynamic(&all_options); |
|
2989 |
free_root(&mem_root, MYF(0)); |
|
2990 |
}
|
|
2991 |