mirror of
https://github.com/MariaDB/server.git
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96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/* Copyright (C) 2000 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; 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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#include "mysys_priv.h"
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#include <m_string.h>
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#if defined( __WIN__) || defined(OS2) || defined(__NETWARE__)
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#define DELIM ';'
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#else
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#define DELIM ':'
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#endif
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my_bool init_tmpdir(MY_TMPDIR *tmpdir, const char *pathlist)
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{
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char *end, *copy;
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char buff[FN_REFLEN];
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DYNAMIC_ARRAY t_arr;
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DBUG_ENTER("init_tmpdir");
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DBUG_PRINT("enter", ("pathlist: %s", pathlist ? pathlist : "NULL"));
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pthread_mutex_init(&tmpdir->mutex, MY_MUTEX_INIT_FAST);
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if (my_init_dynamic_array(&t_arr, sizeof(char*), 1, 5))
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goto err;
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if (!pathlist || !pathlist[0])
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{
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/* Get default temporary directory */
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pathlist=getenv("TMPDIR"); /* Use this if possible */
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#if defined( __WIN__) || defined(OS2) || defined(__NETWARE__)
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if (!pathlist)
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pathlist=getenv("TEMP");
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if (!pathlist)
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pathlist=getenv("TMP");
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#endif
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if (!pathlist || !pathlist[0])
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pathlist=(char*) P_tmpdir;
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}
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do
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{
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uint length;
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end=strcend(pathlist, DELIM);
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strmake(buff, pathlist, (uint) (end-pathlist));
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length= cleanup_dirname(buff, buff);
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if (!(copy= my_strndup(buff, length, MYF(MY_WME))) ||
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insert_dynamic(&t_arr, (gptr) ©))
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DBUG_RETURN(TRUE);
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pathlist=end+1;
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}
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while (*end);
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freeze_size(&t_arr);
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tmpdir->list=(char **)t_arr.buffer;
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tmpdir->max=t_arr.elements-1;
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tmpdir->cur=0;
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DBUG_RETURN(FALSE);
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err:
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delete_dynamic(&t_arr); /* Safe to free */
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pthread_mutex_destroy(&tmpdir->mutex);
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DBUG_RETURN(TRUE);
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}
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char *my_tmpdir(MY_TMPDIR *tmpdir)
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{
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char *dir;
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if (!tmpdir->max)
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return tmpdir->list[0];
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pthread_mutex_lock(&tmpdir->mutex);
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dir=tmpdir->list[tmpdir->cur];
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tmpdir->cur= (tmpdir->cur == tmpdir->max) ? 0 : tmpdir->cur+1;
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pthread_mutex_unlock(&tmpdir->mutex);
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return dir;
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}
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void free_tmpdir(MY_TMPDIR *tmpdir)
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{
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uint i;
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for (i=0; i<=tmpdir->max; i++)
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my_free(tmpdir->list[i], MYF(0));
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my_free((gptr)tmpdir->list, MYF(0));
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pthread_mutex_destroy(&tmpdir->mutex);
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}
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