117 lines
3.2 KiB
C
117 lines
3.2 KiB
C
|
/* Threads <threads.h>
|
||
|
|
|
||
|
|
This file is part of the Public Domain C Library (PDCLib).
|
||
|
|
Permission is granted to use, modify, and / or redistribute at will.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _PDCLIB_THREADS_H
|
||
|
|
#define _PDCLIB_THREADS_H _PDCLIB_THREADS_H
|
||
|
|
#include "_PDCLIB_int.h"
|
||
|
|
#include "_PDCLIB_threadconfig.h"
|
||
|
|
|
||
|
|
#include <time.h>
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define thread_local _Thread_local
|
||
|
|
|
||
|
|
typedef _PDCLIB_once_flag once_flag;
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
mtx_plain = 0,
|
||
|
|
mtx_recursive = (1 << 0),
|
||
|
|
mtx_timed = (1 << 1),
|
||
|
|
|
||
|
|
_PDCLIB_mtx_valid_mask = mtx_recursive | mtx_timed
|
||
|
|
};
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
thrd_success = 0,
|
||
|
|
thrd_timeout = 1,
|
||
|
|
thrd_busy = 2,
|
||
|
|
thrd_error = 3,
|
||
|
|
thrd_nomem = 4,
|
||
|
|
};
|
||
|
|
|
||
|
|
#define ONCE_FLAG_INIT _PDCLIB_ONCE_FLAG_INIT
|
||
|
|
#ifdef _PDCLIB_ONCE_FLAG_IS_DONE
|
||
|
|
static inline void call_once( once_flag * flag, void (*func)( void ) )
|
||
|
|
{
|
||
|
|
if ( ! _PDCLIB_ONCE_FLAG_IS_DONE( flag ) )
|
||
|
|
{
|
||
|
|
_PDCLIB_call_once( flag, func );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
void call_once( once_flag * flag, void (*func)( void ) );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef _PDCLIB_MTX_T
|
||
|
|
typedef _PDCLIB_MTX_T mtx_t;
|
||
|
|
void mtx_destroy( mtx_t * mtx ) _PDCLIB_nothrow;
|
||
|
|
int mtx_init( mtx_t * mtx, int type ) _PDCLIB_nothrow;
|
||
|
|
int mtx_lock( mtx_t * mtx ) _PDCLIB_nothrow;
|
||
|
|
int mtx_timedlock( mtx_t * _PDCLIB_restrict mtx, const struct timespec * _PDCLIB_restrict ts ) _PDCLIB_nothrow;
|
||
|
|
int mtx_trylock( mtx_t * mtx ) _PDCLIB_nothrow;
|
||
|
|
int mtx_unlock( mtx_t * mtx ) _PDCLIB_nothrow;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef _PDCLIB_CND_T
|
||
|
|
typedef _PDCLIB_CND_T cnd_t;
|
||
|
|
int cnd_broadcast( cnd_t * cond ) _PDCLIB_nothrow;
|
||
|
|
void cnd_destroy( cnd_t * cond ) _PDCLIB_nothrow;
|
||
|
|
int cnd_init( cnd_t * cond ) _PDCLIB_nothrow;
|
||
|
|
int cnd_signal( cnd_t * cond ) _PDCLIB_nothrow;
|
||
|
|
int cnd_timedwait( cnd_t *_PDCLIB_restrict cond, mtx_t * _PDCLIB_restrict mtx, const struct timespec * _PDCLIB_restrict ts ) _PDCLIB_nothrow;
|
||
|
|
int cnd_wait( cnd_t * cond, mtx_t * mtx ) _PDCLIB_nothrow;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef _PDCLIB_THRD_T
|
||
|
|
#define _PDCLIB_THRD_HAVE_MISC
|
||
|
|
typedef _PDCLIB_THRD_T thrd_t;
|
||
|
|
typedef int (*thrd_start_t)( void * );
|
||
|
|
|
||
|
|
int thrd_create( thrd_t * thr, thrd_start_t func, void * arg ) _PDCLIB_nothrow;
|
||
|
|
thrd_t thrd_current( void ) _PDCLIB_nothrow;
|
||
|
|
int thrd_detach( thrd_t thr ) _PDCLIB_nothrow;
|
||
|
|
int thrd_equal( thrd_t thr0, thrd_t thr1 ) _PDCLIB_nothrow;
|
||
|
|
|
||
|
|
/* Not nothrow: systems may use exceptions at thread exit */
|
||
|
|
_PDCLIB_noreturn void thrd_exit( int res );
|
||
|
|
/* Not nothrow: systems may potentially propogate exceptions out of thrd_join? */
|
||
|
|
int thrd_join( thrd_t thr, int * res );
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef _PDCLIB_THRD_HAVE_MISC
|
||
|
|
int thrd_sleep( const struct timespec * duration, struct timespec * remaining ) _PDCLIB_nothrow;
|
||
|
|
void thrd_yield( void ) _PDCLIB_nothrow;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* The behaviour of tss_t is woefully underspecified in the C11 standard. In
|
||
|
|
particular, it never specifies where/when/<b>if</b> destructors are called.
|
||
|
|
|
||
|
|
In lieu of any clarification, we assume the behaviour of POSIX pthread_key_t
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef _PDCLIB_TSS_T
|
||
|
|
#define TSS_DTOR_ITERATIONS _PDCLIB_TSS_DTOR_ITERATIONS
|
||
|
|
|
||
|
|
typedef _PDCLIB_TSS_T tss_t;
|
||
|
|
typedef void (*tss_dtor_t)( void * );
|
||
|
|
|
||
|
|
int tss_create( tss_t * key, tss_dtor_t dtor ) _PDCLIB_nothrow;
|
||
|
|
void tss_delete( tss_t key ) _PDCLIB_nothrow;
|
||
|
|
void * tss_get( tss_t key ) _PDCLIB_nothrow;
|
||
|
|
int tss_set( tss_t key, void * val ) _PDCLIB_nothrow;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|