1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/* Copyright (C) 2000 MySQL AB
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 <config.h>
#include <drizzled/internal/my_sys.h>
#include <drizzled/internal/m_string.h>
#include "my_static.h"
#include <drizzled/error.h>
#include <stdio.h>
#include <errno.h>
#include <string>
#ifdef HAVE_PATHS_H
#include <paths.h>
#endif
using namespace std;
namespace drizzled
{
namespace internal
{
/*
@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
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.
The implementation using mkstemp should be considered the
reference implementation when adding a new or modifying an
existing one
*/
int create_temp_file(char *to, const char *dir, const char *prefix,
myf MyFlags)
{
string prefix_str= prefix ? prefix : "tmp.";
prefix_str.append("XXXXXX");
if (!dir && ! (dir =getenv("TMPDIR")))
dir= P_tmpdir;
if (strlen(dir)+prefix_str.length() > FN_REFLEN-2)
{
errno= ENAMETOOLONG;
return -1;
}
strcpy(convert_dirname(to,dir,NULL),prefix_str.c_str());
int org_file= mkstemp(to);
/* TODO: This was old behavior, but really don't we want to
* unlink files immediately under all circumstances?
* if (mode & O_TEMPORARY)
(void) my_delete(to, MYF(MY_WME | ME_NOINPUT));
*/
int file= my_register_filename(org_file, to, EE_CANTCREATEFILE, MyFlags);
/* If we didn't manage to register the name, remove the temp file */
if (org_file >= 0 && file < 0)
{
int tmp= errno;
close(org_file);
(void) my_delete(to, MYF(MY_WME | ME_NOINPUT));
errno= tmp;
}
return file;
}
} /* namespace internal */
} /* namespace drizzled */
|