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lavu: Provide fallbacks for gmtime_r and localtime_r

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This allows writing most code as if they always are is available.

These are ok to use from other libraries even though it's not a
public header, since they only provide an inline declaration, and
doesn't add an actual dependency on lavu internals. (This can be
considered more a build system compatibility fallback than a
libavutil feature.)

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2014-10-24 10:33:19 +03:00
parent 9dcf239721
commit 3f8f1c6ff2
2 changed files with 49 additions and 0 deletions
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2
configure vendored
View File

@ -1453,6 +1453,7 @@ SYSTEM_FUNCS="
getservbyport
GetSystemTimeAsFileTime
gettimeofday
gmtime_r
inet_aton
isatty
jack_port_get_latency_range
@ -4062,6 +4063,7 @@ check_func gethrtime
check_func getopt
check_func getrusage
check_func gettimeofday
check_func gmtime_r
check_func isatty
check_func localtime_r
check_func mach_absolute_time

47
libavutil/time_internal.h Normal file
View File

@ -0,0 +1,47 @@
/*
* This file is part of Libav.
*
* Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_TIME_INTERNAL_H
#define AVUTIL_TIME_INTERNAL_H
#include <time.h>
#include "config.h"
#if !HAVE_GMTIME_R
static inline struct tm *gmtime_r(const time_t* clock, struct tm *result)
{
struct tm *ptr = gmtime(clock);
if (!ptr)
return NULL;
*result = *ptr;
return result;
}
#endif
#if !HAVE_LOCALTIME_R
static inline struct tm *localtime_r(const time_t* clock, struct tm *result)
{
struct tm *ptr = localtime(clock);
if (!ptr)
return NULL;
*result = *ptr;
return result;
}
#endif
#endif /* AVUTIL_TIME_INTERNAL_H */