diff options
Diffstat (limited to 'mysql/mysys/mf_cache.c')
| -rw-r--r-- | mysql/mysys/mf_cache.c | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/mysql/mysys/mf_cache.c b/mysql/mysys/mf_cache.c deleted file mode 100644 index 680f394..0000000 --- a/mysql/mysys/mf_cache.c +++ /dev/null @@ -1,105 +0,0 @@ -/* Copyright (c) 2000, 2016, 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 02110-1301 USA */ - -/* Open a temporary file and cache it with io_cache. Delete it on close */ - -#include "my_global.h" -#include "mysys_priv.h" -#include "mysql/psi/mysql_file.h" -#include "my_sys.h" -#include <m_string.h> -#include "my_static.h" -#include "mysys_err.h" - - /* - Remove an open tempfile so that it doesn't survive - if we crash. - */ - -static my_bool cache_remove_open_tmp(IO_CACHE *cache MY_ATTRIBUTE((unused)), - const char *name) -{ -#if O_TEMPORARY == 0 - /* The following should always succeed */ - (void) my_delete(name,MYF(MY_WME)); -#endif /* O_TEMPORARY == 0 */ - return 0; -} - - /* - ** Open tempfile cached by IO_CACHE - ** Should be used when no seeks are done (only reinit_io_buff) - ** Return 0 if cache is inited ok - ** The actual file is created when the IO_CACHE buffer gets filled - ** If dir is not given, use TMPDIR. - */ - -my_bool open_cached_file(IO_CACHE *cache, const char* dir, const char *prefix, - size_t cache_size, myf cache_myflags) -{ - DBUG_ENTER("open_cached_file"); - cache->dir= dir ? my_strdup(key_memory_IO_CACHE, - dir,MYF(cache_myflags & MY_WME)) : (char*) 0; - cache->prefix= (prefix ? my_strdup(key_memory_IO_CACHE, - prefix,MYF(cache_myflags & MY_WME)) : - (char*) 0); - cache->file_name=0; - cache->buffer=0; /* Mark that not open */ - if (!init_io_cache(cache,-1,cache_size,WRITE_CACHE,0L,0, - MYF(cache_myflags | MY_NABP))) - { - DBUG_RETURN(0); - } - my_free(cache->dir); - my_free(cache->prefix); - DBUG_RETURN(1); -} - -/* Create the temporary file */ - -my_bool real_open_cached_file(IO_CACHE *cache) -{ - char name_buff[FN_REFLEN]; - int error=1; - DBUG_ENTER("real_open_cached_file"); - if ((cache->file= mysql_file_create_temp(cache->file_key, name_buff, - cache->dir, cache->prefix, - (O_RDWR | O_BINARY | O_TRUNC | O_TEMPORARY | O_SHORT_LIVED), - MYF(MY_WME))) >= 0) - { - error=0; - cache_remove_open_tmp(cache, name_buff); - } - DBUG_RETURN(error); -} - - -void close_cached_file(IO_CACHE *cache) -{ - DBUG_ENTER("close_cached_file"); - if (my_b_inited(cache)) - { - File file=cache->file; - cache->file= -1; /* Don't flush data */ - (void) end_io_cache(cache); - if (file >= 0) - { - (void) mysql_file_close(file, MYF(0)); - } - my_free(cache->dir); - my_free(cache->prefix); - } - DBUG_VOID_RETURN; -} |