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InnoDB: Use create_temp_file() when available

Browse Source 
innobase/include/os0file.h:
  Improve the comment of os_file_create_tmpfile()
innobase/os/os0file.c:
  os_file_create_tmpfile(): Use create_temp_file()
  via innobase_mysql_tmpfile() unless UNIV_HOTBACKUP is defined
sql/ha_innodb.cc:
  Added innobase_mysql_tmpfile(), a wrapper around create_temp_file()
This commit is contained in:
unknown
2004-08-10 14:17:32 +03:00
parent fc4364e350
commit 2c900be0ef
3 changed files with 78 additions and 22 deletions
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4
innobase/include/os0file.h
View File

@ -134,12 +134,12 @@ void
os_io_init_simple(void);
/*===================*/
/***************************************************************************
Creates a temporary file. In case of error, causes abnormal termination. */
Creates a temporary file. */
FILE*
os_file_create_tmpfile(void);
/*========================*/
/* out: temporary file handle, or NULL */
/* out: temporary file handle, or NULL on error */
/********************************************************************
A simple function to open or create a file. */

72
innobase/os/os0file.c
View File

@ -371,39 +371,71 @@ os_io_init_simple(void)
}
}
#ifndef UNIV_HOTBACKUP
/*************************************************************************
Creates a temporary file. This function is defined in ha_innodb.cc. */
int
innobase_mysql_tmpfile(void);
/*========================*/
/* out: temporary file descriptor, or < 0 on error */
#endif /* !UNIV_HOTBACKUP */
/***************************************************************************
Creates a temporary file. In case of error, causes abnormal termination. */
Creates a temporary file. */
FILE*
os_file_create_tmpfile(void)
/*========================*/
/* out: temporary file handle, or NULL */
/* out: temporary file handle, or NULL on error */
{
FILE* file;
#ifdef __WIN__
FILE* file = NULL;
int fd = -1;
char* name;
file = NULL;
if (NULL == (name = tempnam(fil_path_to_mysql_datadir, "ib"))
|| -1 == (fd = _open(name, _O_CREAT | _O_EXCL | _O_RDWR
| _O_SEQUENTIAL | _O_SHORT_LIVED | _O_TEMPORARY))
|| NULL == (file = fdopen(fd, "w+b"))) {
ut_print_timestamp(stderr);
fprintf(stderr, " InnoDB: Error: unable to create"
" temporary file %s\n", name ? name : "name");
if (fd != -1) {
_close(fd);
#ifdef UNIV_HOTBACKUP
int tries;
for (tries = 10; tries--; ) {
char* name = tempnam(fil_path_to_mysql_datadir, "ib");
if (!name) {
break;
}
fd = open(name,
# ifdef __WIN__
O_SEQUENTIAL | O_SHORT_LIVED | O_TEMPORARY |
# endif /* __WIN__ */
O_CREAT | O_EXCL | O_RDWR,
S_IREAD | S_IWRITE);
if (fd >= 0) {
# ifndef __WIN__
unlink(name);
# endif /* !__WIN__ */
free(name);
break;
}
ut_print_timestamp(stderr);
fprintf(stderr, " InnoDB: Warning: "
"unable to create temporary file %s, retrying\n",
name);
free(name);
}
free(name);
#else /* __WIN__ */
file = tmpfile();
if (file == NULL) {
#else /* UNIV_HOTBACKUP */
fd = innobase_mysql_tmpfile();
#endif /* UNIV_HOTBACKUP */
if (fd >= 0) {
file = fdopen(fd, "w+b");
}
if (!file) {
ut_print_timestamp(stderr);
fputs(" InnoDB: Error: unable to create temporary file\n",
stderr);
if (fd >= 0) {
close(fd);
}
}
#endif /* __WIN__ */
return(file);
}

24
sql/ha_innodb.cc
View File

@ -406,6 +406,30 @@ innobase_mysql_print_thd(
putc('\n', f);
}
/*************************************************************************
Creates a temporary file. */
extern "C"
int
innobase_mysql_tmpfile(void)
/*========================*/
/* out: temporary file descriptor, or < 0 on error */
{
char filename[FN_REFLEN];
File fd = create_temp_file(filename, NullS, "ib",
#ifdef __WIN__
O_BINARY | O_TRUNC | O_SEQUENTIAL |
O_TEMPORARY | O_SHORT_LIVED |
#endif /* __WIN__ */
O_CREAT | O_EXCL | O_RDWR,
MYF(MY_WME));
#ifndef __WIN__
if (fd >= 0) {
unlink(filename);
}
#endif /* !__WIN__ */
return(fd);
}
/*************************************************************************
Gets the InnoDB transaction handle for a MySQL handler object, creates
an InnoDB transaction struct if the corresponding MySQL thread struct still