Differences From Artifact [82e5d91bee]:
- File src/once.h — part of check-in [374e1a1bfa] at 2021-01-02 22:04:26 on branch trunk — Update copyright (user: js, size: 1026) [annotate] [blame] [check-ins using] [more...]
To Artifact [dbf6773006]:
- File
src/OFOnce.h
— part of check-in
[3c88df0ce4]
at
2021-05-09 14:45:19
on branch amiga-library
— Merge trunk into branch "amiga-library"
All necessary changes to adjust for the changes made in trunk are
included in the merge commit. (user: js, size: 1379) [annotate] [blame] [check-ins using] [more...]
| ︙ | ︙ | |||
11 12 13 14 15 16 17 | * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #include "objfw-defs.h" | > | > | | | | | | > > > > > > > > > | > | 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 |
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "objfw-defs.h"
#import "macros.h"
/** @file */
#if defined(OF_HAVE_PTHREADS)
# include <pthread.h>
typedef pthread_once_t OFOnceControl;
# define OFOnceControlInitValue PTHREAD_ONCE_INIT
#elif defined(OF_HAVE_ATOMIC_OPS)
typedef volatile int OFOnceControl;
# define OFOnceControlInitValue 0
#elif defined(OF_AMIGAOS) || !defined(OF_HAVE_THREADS)
typedef int OFOnceControl;
# define OFOnceControlInitValue 0
#endif
typedef void (*OFOnceFunction)(void);
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief A method to call a function only once in a thread-safe manner.
*
* @param control The once control. This needs to be set to
* OFOnceControlInitValue at compile time.
* @param func The function to call only once
*/
extern void OFOnce(OFOnceControl *_Nonnull control,
OFOnceFunction _Nonnull func);
#ifdef __cplusplus
}
#endif
|