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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2009 Sun Microsystems
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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; either version 2 of the License, or
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* (at your option) any later version.
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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* Implementation of helper methods for I_S tables.
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#include "drizzled/session.h"
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#include "drizzled/show.h"
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#include "drizzled/sql_base.h"
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#include "drizzled/plugin/client.h"
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#include "drizzled/join_table.h"
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#include "drizzled/global_charset_info.h"
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#include "drizzled/pthread_globals.h"
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#include "drizzled/internal/m_string.h"
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#include "plugin/myisam/myisam.h" // needed for dflt_key_cache
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#include "helper_methods.h"
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using namespace drizzled;
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static inline void make_upper(char *buf)
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*buf= my_toupper(system_charset_info, *buf);
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bool show_status_array(Session *session,
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enum enum_var_type value_type,
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struct system_status_var *status_var,
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const char *prefix, Table *table,
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plugin::InfoSchemaTable *schema_table)
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MY_ALIGNED_BYTE_ARRAY(buff_data, SHOW_VAR_FUNC_BUFF_SIZE, int64_t);
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char * const buff= (char *) &buff_data;
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/* the variable name should not be longer than 64 characters */
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prefix_end= strncpy(name_buffer, prefix, sizeof(name_buffer)-1);
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prefix_end+= strlen(prefix);
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len=name_buffer + sizeof(name_buffer) - prefix_end;
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for (; variables->name; variables++)
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strncpy(prefix_end, variables->name, len);
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name_buffer[sizeof(name_buffer)-1]=0; /* Safety */
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if var->type is SHOW_FUNC, call the function.
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Repeat as necessary, if new var is again SHOW_FUNC
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for (var=variables; var->type == SHOW_FUNC; var= &tmp)
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((mysql_show_var_func)((st_show_var_func_container *)var->value)->func)(&tmp, buff);
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SHOW_TYPE show_type=var->type;
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if (show_type == SHOW_ARRAY)
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show_status_array(session, wild, (SHOW_VAR *) var->value, value_type,
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status_var, name_buffer, table, false, schema_table);
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if (!(wild && wild[0] && wild_case_compare(system_charset_info,
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char *value=var->value;
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const char *pos, *end; // We assign a lot of const's
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pthread_mutex_lock(&LOCK_global_system_variables);
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if (show_type == SHOW_SYS)
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show_type= ((sys_var*) value)->show_type();
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value= (char*) ((sys_var*) value)->value_ptr(session, value_type,
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note that value may be == buff. All SHOW_xxx code below
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should still work in this case
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case SHOW_DOUBLE_STATUS:
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value= ((char *) status_var + (ulong) value);
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/* 6 is the default precision for '%f' in sprintf() */
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end= buff + internal::my_fcvt(*(double *) value, 6, buff, NULL);
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case SHOW_LONG_STATUS:
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value= ((char *) status_var + (ulong) value);
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end= internal::int10_to_str(*(long*) value, buff, 10);
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case SHOW_LONGLONG_STATUS:
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value= ((char *) status_var + (uint64_t) value);
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end= internal::int64_t10_to_str(*(int64_t*) value, buff, 10);
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stringstream ss (stringstream::in);
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ss << *(size_t*) value;
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string str= ss.str();
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strncpy(buff, str.c_str(), str.length());
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end= buff+ str.length();
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end= internal::int64_t10_to_str((int64_t) *(ha_rows*) value, buff, 10);
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end+= sprintf(buff,"%s", *(bool*) value ? "ON" : "OFF");
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end+= sprintf(buff,"%s", *(bool*) value ? "ON" : "OFF");
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case SHOW_INT_NOFLUSH: // the difference lies in refresh_status()
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end= internal::int10_to_str((long) *(uint32_t*) value, buff, 10);
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end= strchr(pos, '\0');
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if (!(pos= *(char**) value))
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end= strchr(pos, '\0');
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case SHOW_KEY_CACHE_LONG:
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value= (char*) dflt_key_cache + (ulong)value;
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end= internal::int10_to_str(*(long*) value, buff, 10);
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case SHOW_KEY_CACHE_LONGLONG:
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value= (char*) dflt_key_cache + (ulong)value;
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end= internal::int64_t10_to_str(*(int64_t*) value, buff, 10);
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break; // Return empty string
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case SHOW_SYS: // Cannot happen
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table->restoreRecordAsDefault();
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table->setWriteSet(0);
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table->setWriteSet(1);
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table->setWriteSet(2);
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table->field[0]->store(name_buffer, strlen(name_buffer),
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system_charset_info);
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table->field[1]->store(pos, (uint32_t) (end - pos), system_charset_info);
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table->field[1]->set_notnull();
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pthread_mutex_unlock(&LOCK_global_system_variables);
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schema_table->addRow(table->record[0], table->s->reclength);
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void store_key_column_usage(Table *table,
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LEX_STRING *table_name,
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const char *key_name,
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const char *con_type,
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const CHARSET_INFO * const cs= system_charset_info;
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/* set the appropriate bits in the write bitset */
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table->setWriteSet(1);
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table->setWriteSet(2);
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table->setWriteSet(4);
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table->setWriteSet(5);
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table->setWriteSet(6);
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table->setWriteSet(7);
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table->field[1]->store(db_name->str, db_name->length, cs);
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table->field[2]->store(key_name, key_len, cs);
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table->field[4]->store(db_name->str, db_name->length, cs);
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table->field[5]->store(table_name->str, table_name->length, cs);
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table->field[6]->store(con_type, con_len, cs);
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table->field[7]->store((int64_t) idx, true);
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* Function object used for deleting the memory allocated
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* for the columns contained with the vector of columns.
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inline void operator()(const T *ptr) const
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void clearColumns(vector<const drizzled::plugin::ColumnInfo *> &cols)
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for_each(cols.begin(), cols.end(), DeleteColumns());
added
removed
plugin/info_schema/helper_methods.cc
