mirror of
https://github.com/MariaDB/server.git
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92 lines
2.7 KiB
C
92 lines
2.7 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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/* close a isam-database */
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#include "isamdef.h"
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int nisam_close(register N_INFO *info)
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{
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int error=0,flag;
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ISAM_SHARE *share=info->s;
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DBUG_ENTER("nisam_close");
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DBUG_PRINT("enter",("base: %lx reopen: %u locks: %u",
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info,(uint) share->reopen,
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(uint) (share->w_locks+share->r_locks)));
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pthread_mutex_lock(&THR_LOCK_isam);
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if (info->lock_type == F_EXTRA_LCK)
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info->lock_type=F_UNLCK; /* HA_EXTRA_NO_USER_CHANGE */
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#ifndef NO_LOCKING
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if (info->lock_type != F_UNLCK)
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VOID(nisam_lock_database(info,F_UNLCK));
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#else
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info->lock_type=F_UNLCK;
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share->w_locks--;
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if (_nisam_writeinfo(info,test(share->changed)))
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error=my_errno;
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#endif
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pthread_mutex_lock(&share->intern_lock);
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if (share->base.options & HA_OPTION_READ_ONLY_DATA)
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share->r_locks--;
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if (info->opt_flag & (READ_CACHE_USED | WRITE_CACHE_USED))
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{
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if (end_io_cache(&info->rec_cache))
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error=my_errno;
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info->opt_flag&= ~(READ_CACHE_USED | WRITE_CACHE_USED);
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}
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flag= !--share->reopen;
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nisam_open_list=list_delete(nisam_open_list,&info->open_list);
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pthread_mutex_unlock(&share->intern_lock);
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if (flag)
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{
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if (share->kfile >= 0 && flush_key_blocks(share->kfile,FLUSH_RELEASE))
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error=my_errno;
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if (share->kfile >= 0 && my_close(share->kfile,MYF(0)))
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error = my_errno;
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#ifdef HAVE_MMAP
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_nisam_unmap_file(info);
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#endif
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if (share->decode_trees)
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{
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my_free((gptr) share->decode_trees,MYF(0));
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my_free((gptr) share->decode_tables,MYF(0));
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}
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#ifdef THREAD
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thr_lock_delete(&share->lock);
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VOID(pthread_mutex_destroy(&share->intern_lock));
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#endif
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my_free((gptr) info->s,MYF(0));
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}
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pthread_mutex_unlock(&THR_LOCK_isam);
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if (info->dfile >= 0 && my_close(info->dfile,MYF(0)))
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error = my_errno;
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nisam_log_command(LOG_CLOSE,info,NULL,0,error);
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my_free((gptr) info->rec_alloc,MYF(0));
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my_free((gptr) info,MYF(0));
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if (error)
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{
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my_errno=error;
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DBUG_RETURN(-1);
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}
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DBUG_RETURN(0);
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} /* nisam_close */
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