~drizzle-trunk/drizzle/development

/*

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2008 Sun Microsystems

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; version 2 of the License.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

/**

 * @file

 *

 * Various server-wide declarations and variables.

 */

#ifndef DRIZZLED_SERVER_INCLUDES_H

#define DRIZZLED_SERVER_INCLUDES_H

/* Cross-platform portability code and standard includes */

#include <drizzled/global.h>

/* Contains system-wide constants and #defines */

#include <drizzled/definitions.h>

/* Lots of system-wide struct definitions like IO_CACHE,

   prototypes for all my_* functions */

#include <mysys/my_sys.h>

/* Custom C string functions */

#include <mystrings/m_string.h>

/* Range optimization API/library */

#include <drizzled/opt_range.h>

/* Routines for dropping, repairing, checking schema tables */

#include <drizzled/sql_table.h>

/* Routines for printing error messages */

#include <drizzled/errmsg_print.h>

#include <string>

#include <sstream>

#include <bitset>

typedef struct st_ha_create_information HA_CREATE_INFO;

/* information schema */

static const std::string INFORMATION_SCHEMA_NAME("information_schema");

/* drizzled.cc */

void refresh_status(Session *session);

void unlink_session(Session *session);

/* item_func.cc */

extern bool check_reserved_words(LEX_STRING *name);

extern enum_field_types agg_field_type(Item **items, uint32_t nitems);

/* strfunc.cc */

uint64_t find_set(TYPELIB *lib, const char *x, uint32_t length, const CHARSET_INFO * const cs,

		   char **err_pos, uint32_t *err_len, bool *set_warning);

uint32_t find_type(const TYPELIB *lib, const char *find, uint32_t length,

               bool part_match);

uint32_t find_type2(const TYPELIB *lib, const char *find, uint32_t length,

                const CHARSET_INFO *cs);

/*

  External variables

*/

extern const CHARSET_INFO *system_charset_info;

extern const CHARSET_INFO *files_charset_info;

extern const CHARSET_INFO *table_alias_charset;

extern char *drizzle_tmpdir;

extern const LEX_STRING command_name[];

extern const char *first_keyword;

extern const char *binary_keyword;

extern const char *in_left_expr_name;

extern const char *in_additional_cond;

extern const char *in_having_cond;

extern char language[FN_REFLEN];

extern char glob_hostname[FN_REFLEN];

extern char drizzle_home[FN_REFLEN];

extern char pidfile_name[FN_REFLEN];

extern char system_time_zone[30];

extern char *opt_tc_log_file;

extern const double log_10[309];

extern uint64_t log_10_int[20];

extern uint64_t session_startup_options;

extern uint32_t global_thread_id;

extern uint64_t aborted_threads;

extern uint64_t aborted_connects;

extern uint64_t table_cache_size;

extern uint64_t table_def_size;

extern uint64_t max_connect_errors;

extern uint32_t back_log;

extern pid_t current_pid;

extern std::bitset<12> test_flags;

extern uint32_t ha_open_options;

extern uint32_t drizzled_tcp_port;

extern char *drizzled_bind_host;

extern uint32_t drizzled_bind_timeout;

extern uint32_t dropping_tables;

extern bool opt_endinfo;

extern bool locked_in_memory;

extern bool volatile abort_loop;

extern bool volatile shutdown_in_progress;

extern uint32_t volatile thread_running;

extern uint32_t volatile global_read_lock;

extern bool opt_readonly;

extern char* opt_secure_file_priv;

extern char *default_tz_name;

extern FILE *stderror_file;

extern pthread_mutex_t LOCK_create_db;

extern pthread_mutex_t LOCK_open;

extern pthread_mutex_t LOCK_thread_count;

extern pthread_mutex_t LOCK_status;

extern pthread_mutex_t LOCK_global_read_lock;

extern pthread_mutex_t LOCK_global_system_variables;

extern pthread_rwlock_t LOCK_system_variables_hash;

extern pthread_cond_t COND_refresh;

extern pthread_cond_t COND_thread_count;

extern pthread_cond_t COND_global_read_lock;

extern pthread_attr_t connection_attrib;

extern std::vector<Session *> session_list;

extern String my_empty_string;

extern const String my_null_string;

extern struct system_variables max_system_variables;

extern struct system_status_var global_status_var;

extern Table *unused_tables;

extern const char* any_db;

extern struct my_option my_long_options[];

extern std::bitset<5> sql_command_flags[];

extern drizzled::plugin::StorageEngine *myisam_engine;

extern drizzled::plugin::StorageEngine *heap_engine;

extern SHOW_COMP_OPTION have_symlink;

extern pthread_t signal_thread;

/* table.cc */

TableShare *alloc_table_share(TableList *table_list, char *key,

                               uint32_t key_length);

int open_table_def(Session& session, TableShare *share);

void open_table_error(TableShare *share, int error, int db_errno, int errarg);

int open_table_from_share(Session *session, TableShare *share, const char *alias,

                          uint32_t db_stat, uint32_t prgflag, uint32_t ha_open_flags,

                          Table *outparam, open_table_mode open_mode);

void free_blobs(Table *table);

int set_zone(int nr,int min_zone,int max_zone);

uint32_t convert_period_to_month(uint32_t period);

uint32_t convert_month_to_period(uint32_t month);

void get_date_from_daynr(long daynr,uint32_t *year, uint32_t *month,

			 uint32_t *day);

bool str_to_time_with_warn(const char *str,uint32_t length,DRIZZLE_TIME *l_time);

enum enum_drizzle_timestamp_type str_to_datetime_with_warn(const char *str, uint32_t length,

                                         DRIZZLE_TIME *l_time, uint32_t flags);

void localtime_to_TIME(DRIZZLE_TIME *to, struct tm *from);

void make_truncated_value_warning(Session *session, DRIZZLE_ERROR::enum_warning_level level,

                                  const char *str_val,

				  uint32_t str_length, enum enum_drizzle_timestamp_type time_type,

                                  const char *field_name);

bool calc_time_diff(DRIZZLE_TIME *l_time1, DRIZZLE_TIME *l_time2, int l_sign,

                    int64_t *seconds_out, long *microseconds_out);

void make_datetime(const DRIZZLE_TIME *l_time, String *str);

void make_date(const DRIZZLE_TIME *l_time, String *str);

uint64_t get_datetime_value(Session *session, Item ***item_arg, Item **cache_arg,

                             Item *warn_item, bool *is_null);

int test_if_number(char *str,int *res,bool allow_wildcards);

void change_byte(unsigned char *,uint,char,char);

void init_read_record(READ_RECORD *info, Session *session, Table *reg_form,

		      SQL_SELECT *select,

		      int use_record_cache, bool print_errors);

void init_read_record_idx(READ_RECORD *info, Session *session, Table *table,

                          bool print_error, uint32_t idx);

void end_read_record(READ_RECORD *info);

ha_rows filesort(Session *session, Table *form,struct st_sort_field *sortorder,

		 uint32_t s_length, SQL_SELECT *select,

		 ha_rows max_rows, bool sort_positions,

                 ha_rows *examined_rows);

void filesort_free_buffers(Table *table, bool full);

void change_double_for_sort(double nr,unsigned char *to);

double my_double_round(double value, int64_t dec, bool dec_unsigned,

                       bool truncate);

int get_quick_record(SQL_SELECT *select);

int calc_weekday(long daynr,bool sunday_first_day_of_week);

uint32_t calc_week(DRIZZLE_TIME *l_time, uint32_t week_behaviour, uint32_t *year);

void find_date(char *pos,uint32_t *vek,uint32_t flag);

TYPELIB *convert_strings_to_array_type(char * *typelibs, char * *end);

TYPELIB *typelib(MEM_ROOT *mem_root, List<String> &strings);

ulong get_form_pos(File file, unsigned char *head, TYPELIB *save_names);

ulong next_io_size(ulong pos);

void append_unescaped(String *res, const char *pos, uint32_t length);

int rename_file_ext(const char * from,const char * to,const char * ext);

bool check_db_name(LEX_STRING *db);

bool check_column_name(const char *name);

bool check_table_name(const char *name, uint32_t length);

/* Conversion functions */

size_t build_table_filename(char *buff, size_t bufflen, const char *db, 

                            const char *table_name, bool is_tmp);

/* Flags for conversion functions. */

#define FN_FROM_IS_TMP  (1 << 0)

#define FN_TO_IS_TMP    (1 << 1)

#define FN_IS_TMP       (FN_FROM_IS_TMP | FN_TO_IS_TMP)

#define NO_FRM_RENAME   (1 << 2)

inline uint32_t sql_rnd()

{

  return (uint32_t) (rand() * 0xffffffff); /* make all bits random */

}

/**

  convert a hex digit into number.

*/

inline int hexchar_to_int(char c)

{

  if (c <= '9' && c >= '0')

    return c-'0';

  c|=32;

  if (c <= 'f' && c >= 'a')

    return c-'a'+10;

  return -1;

}

#endif /* DRIZZLED_SERVER_INCLUDES_H */