mirror of
https://github.com/MariaDB/server.git
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9e72e1ef53
Fixes for embedded server Made key_cache more configurable Fixed that one can change key blocksize in MyISAM A lot of optimizations to make MyISAM slightly faster Docs/manual.texi: Cleaned up SSL documentation client/mysql.cc: Fixes for embedded server client/mysqltest.c: Fixes for embedded server Removed memory and file leaks include/my_global.h: Added C_MODE_START / C_MODE_END macros include/my_sys.h: Made key_cache more configurable include/myisam.h: Fixed that one can change MyISAM key block size include/mysql.h: Fixes for embedded server libmysql/libmysql.c: Cleanup libmysqld/Makefile.am: Cleanup libmysqld/examples/test-run: Added --debug libmysqld/lib_sql.cc: Cleanup libmysqld/libmysqld.c: Cleanup myisam/ft_boolean_search.c: Optimized mi_key_cmp to be faster myisam/ft_nlq_search.c: Optimized mi_key_cmp to be faster myisam/ft_search.c: Optimized mi_key_cmp to be faster myisam/mi_changed.c: Optimized mi_key_cmp to be faster myisam/mi_check.c: Optimized mi_key_cmp to be faster myisam/mi_create.c: Fixed that one can change blocksize by changing myisam_block_size myisam/mi_delete.c: Optimized mi_key_cmp to be faster myisam/mi_delete_all.c: Optimized mi_key_cmp to be faster myisam/mi_dynrec.c: Speed optimizations myisam/mi_info.c: Speed optimizations myisam/mi_key.c: Speed optimizations myisam/mi_locking.c: Speed optimizations myisam/mi_open.c: Fixed that one can change blocksize by changing myisam_block_size myisam/mi_page.c: Fixed that one can change blocksize by changing myisam_block_size myisam/mi_range.c: Speed optimizations myisam/mi_rkey.c: Speed optimizations myisam/mi_rnext.c: Speed optimizations myisam/mi_rnext_same.c: Speed optimizations myisam/mi_rprev.c: Speed optimizations myisam/mi_rsame.c: Speed optimizations myisam/mi_search.c: Speed optimizations myisam/mi_static.c: Fixed that one can change blocksize by changing myisam_block_size myisam/mi_statrec.c: Speed optimizations myisam/mi_test2.c: Added more test options myisam/mi_test_all.res: Added more test options myisam/mi_test_all.sh: Added more test options myisam/mi_write.c: Speed optimizations myisam/myisamchk.c: Added options to change block size and repair checksums myisam/myisamdef.h: Speed optimizations mysys/Makefile.am: Added bit handling functions mysys/mf_keycache.c: Made key_cache more configurable mysys/my_init.c: made my_init_done global scripts/mysql_fix_privilege_tables.sh: Fixes for SSL scripts/mysql_install_db.sh: Fixes for SSL sql/derror.cc: Don't call exit, call unireg_abort() sql/item_cmpfunc.cc: Speed optimizations sql/item_cmpfunc.h: Speed optimizations sql/mysql_priv.h: Fixes for embedded server sql/mysqld.cc: Fixes for embedded server
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult 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; 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* Remove all rows from a MyISAM table */
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/* This only clears the status information and truncates the data file */
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#include "myisamdef.h"
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int mi_delete_all_rows(MI_INFO *info)
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{
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uint i;
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MYISAM_SHARE *share=info->s;
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MI_STATE_INFO *state=&share->state;
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DBUG_ENTER("mi_delete_all_rows");
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if (share->options & HA_OPTION_READ_ONLY_DATA)
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{
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DBUG_RETURN(my_errno=EACCES);
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}
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if (_mi_readinfo(info,F_WRLCK,1))
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DBUG_RETURN(my_errno);
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if (_mi_mark_file_changed(info))
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goto err;
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info->state->records=info->state->del=state->split=0;
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state->dellink = HA_OFFSET_ERROR;
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state->sortkey= (ushort) ~0;
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info->state->key_file_length=share->base.keystart;
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info->state->data_file_length=0;
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info->state->empty=info->state->key_empty=0;
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state->checksum=0;
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for (i=share->base.max_key_block_length/MI_MIN_KEY_BLOCK_LENGTH ; i-- ; )
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state->key_del[i]= HA_OFFSET_ERROR;
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for (i=0 ; i < share->base.keys ; i++)
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state->key_root[i]= HA_OFFSET_ERROR;
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myisam_log_command(MI_LOG_DELETE_ALL,info,(byte*) 0,0,0);
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VOID(_mi_writeinfo(info,WRITEINFO_UPDATE_KEYFILE));
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if (my_chsize(info->dfile, 0, MYF(MY_WME)))
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goto err;
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allow_break(); /* Allow SIGHUP & SIGINT */
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DBUG_RETURN(0);
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err:
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{
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int save_errno=my_errno;
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VOID(_mi_writeinfo(info,WRITEINFO_UPDATE_KEYFILE));
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info->update|=HA_STATE_WRITTEN; /* Buffer changed */
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allow_break(); /* Allow SIGHUP & SIGINT */
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DBUG_RETURN(my_errno=save_errno);
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}
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} /* mi_delete */
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