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Diffstat (limited to 'mysql/mysys/mf_tempfile.c')
| -rw-r--r-- | mysql/mysys/mf_tempfile.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/mysql/mysys/mf_tempfile.c b/mysql/mysys/mf_tempfile.c deleted file mode 100644 index beeabba..0000000 --- a/mysql/mysys/mf_tempfile.c +++ /dev/null @@ -1,140 +0,0 @@ -/* Copyright (c) 2000, 2015, 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 */ - -#include "mysys_priv.h" -#include <m_string.h> -#include "my_static.h" -#include "mysys_err.h" -#include <errno.h> -#include "my_thread_local.h" - - -/* - @brief - Create a temporary file with unique name in a given directory - - @details - create_temp_file - to pointer to buffer where temporary filename will be stored - dir directory where to create the file - prefix prefix the filename with this - mode Flags to use for my_create/my_open - MyFlags Magic flags - - @return - File descriptor of opened file if success - -1 and sets errno if fails. - - @note - The behaviour of this function differs a lot between - implementation, it's main use is to generate a file with - a name that does not already exist. - - When passing O_TEMPORARY flag in "mode" the file should - be automatically deleted - - The implementation using mkstemp should be considered the - reference implementation when adding a new or modifying an - existing one - -*/ - -File create_temp_file(char *to, const char *dir, const char *prefix, - int mode, myf MyFlags) -{ - File file= -1; -#ifdef _WIN32 - TCHAR path_buf[MAX_PATH-14]; -#endif - - DBUG_ENTER("create_temp_file"); - DBUG_PRINT("enter", ("dir: %s, prefix: %s", dir, prefix)); -#if defined(_WIN32) - - /* - Use GetTempPath to determine path for temporary files. - This is because the documentation for GetTempFileName - has the following to say about this parameter: - "If this parameter is NULL, the function fails." - */ - if (!dir) - { - if(GetTempPath(sizeof(path_buf), path_buf) > 0) - dir = path_buf; - } - /* - Use GetTempFileName to generate a unique filename, create - the file and release it's handle - - uses up to the first three letters from prefix - */ - if (GetTempFileName(dir, prefix, 0, to) == 0) - DBUG_RETURN(-1); - - DBUG_PRINT("info", ("name: %s", to)); - - /* - Open the file without the "open only if file doesn't already exist" - since the file has already been created by GetTempFileName - */ - if ((file= my_open(to, (mode & ~O_EXCL), MyFlags)) < 0) - { - /* Open failed, remove the file created by GetTempFileName */ - int tmp= my_errno(); - (void) my_delete(to, MYF(0)); - set_my_errno(tmp); - } - -#else /* mkstemp() is available on all non-Windows supported platforms. */ - { - char prefix_buff[30]; - uint pfx_len; - File org_file; - - pfx_len= (uint) (my_stpcpy(my_stpnmov(prefix_buff, - prefix ? prefix : "tmp.", - sizeof(prefix_buff)-7),"XXXXXX") - - prefix_buff); - if (!dir && ! (dir =getenv("TMPDIR"))) - dir= DEFAULT_TMPDIR; - if (strlen(dir)+ pfx_len > FN_REFLEN-2) - { - errno=ENAMETOOLONG; - set_my_errno(ENAMETOOLONG); - DBUG_RETURN(file); - } - my_stpcpy(convert_dirname(to,dir,NullS),prefix_buff); - org_file=mkstemp(to); - if (mode & O_TEMPORARY) - (void) my_delete(to, MYF(MY_WME)); - file=my_register_filename(org_file, to, FILE_BY_MKSTEMP, - EE_CANTCREATEFILE, MyFlags); - /* If we didn't manage to register the name, remove the temp file */ - if (org_file >= 0 && file < 0) - { - int tmp=my_errno(); - close(org_file); - (void) my_delete(to, MYF(MY_WME)); - set_my_errno(tmp); - } - } -#endif - if (file >= 0) - { - mysql_mutex_lock(&THR_LOCK_open); - my_tmp_file_created++; - mysql_mutex_unlock(&THR_LOCK_open); - } - DBUG_RETURN(file); -} |