/* Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
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 02110-1335 USA */
#include "mysys_priv.h"
#include <m_string.h>
#if defined (_WIN32)
#define DELIM ';'
#else
#define DELIM ':'
#endif
my_bool init_tmpdir(MY_TMPDIR *tmpdir, const char *pathlist)
{
char *end, *copy;
char buff[FN_REFLEN];
DBUG_ENTER("init_tmpdir" );
DBUG_PRINT("enter" , ("pathlist: %s" , pathlist ? pathlist : "NULL" ));
mysql_mutex_init(key_TMPDIR_mutex, &tmpdir->mutex, MY_MUTEX_INIT_FAST);
if (my_init_dynamic_array(key_memory_MY_TMPDIR_full_list, &tmpdir->full_list,
sizeof (char *), 1 , 5 , MYF(0 )))
goto err;
if (!pathlist || !pathlist[0 ])
{
/* Get default temporary directory */
pathlist=getenv("TMPDIR" ); /* Use this if possible */
#if defined (_WIN32)
if (!pathlist)
pathlist=getenv("TEMP" );
if (!pathlist)
pathlist=getenv("TMP" );
#endif
if (!pathlist || !pathlist[0 ])
pathlist= DEFAULT_TMPDIR;
}
do
{
size_t length;
end=strcend(pathlist, DELIM);
strmake(buff, pathlist, (uint) (end-pathlist));
length= cleanup_dirname(buff, buff);
if (!(copy= my_strndup(key_memory_MY_TMPDIR_full_list, buff, length, MYF(MY_WME))) ||
insert_dynamic(&tmpdir->full_list, (uchar*) ©))
DBUG_RETURN(TRUE );
pathlist=end+1 ;
}
while (*end);
freeze_size(&tmpdir->full_list);
tmpdir->list=(char **)tmpdir->full_list.buffer;
tmpdir->max=tmpdir->full_list.elements-1 ;
tmpdir->cur=0 ;
DBUG_RETURN(FALSE );
err:
delete_dynamic(&tmpdir->full_list); /* Safe to free */
mysql_mutex_destroy(&tmpdir->mutex);
DBUG_RETURN(TRUE );
}
char *my_tmpdir(MY_TMPDIR *tmpdir)
{
char *dir;
if (!tmpdir->max)
return tmpdir->list[0 ];
mysql_mutex_lock(&tmpdir->mutex);
dir=tmpdir->list[tmpdir->cur];
tmpdir->cur= (tmpdir->cur == tmpdir->max) ? 0 : tmpdir->cur+1 ;
mysql_mutex_unlock(&tmpdir->mutex);
return dir;
}
void free_tmpdir(MY_TMPDIR *tmpdir)
{
uint i;
if (!tmpdir->full_list.elements)
return ;
for (i=0 ; i<=tmpdir->max; i++)
my_free(tmpdir->list[i]);
delete_dynamic(&tmpdir->full_list);
mysql_mutex_destroy(&tmpdir->mutex);
}
Messung V0.5 in Prozent C=96 H=74 G=85
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-08)
¤
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