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musl/include/threads.h

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add threads.h and needed per-arch types for mtx_t and cnd_t based on patch by Jens Gustedt. mtx_t and cnd_t are defined in such a way that they are formally "compatible types" with pthread_mutex_t and pthread_cond_t, respectively, when accessed from a different translation unit. this makes it possible to implement the C11 functions using the pthread functions (which will dereference them with the pthread types) without having to use the same types, which would necessitate either namespace violations (exposing pthread type names in threads.h) or incompatible changes to the C++ name mangling ABI for the pthread types. for the rest of the types, things are much simpler; using identical types is possible without any namespace considerations.
2014-09-07 00:44:30 +00:00
#ifndef _THREADS_H
#define _THREADS_H
#include <features.h>
#include <time.h>
#ifdef __cplusplus
extern "C" {
typedef unsigned long thrd_t;
#else
typedef struct __pthread *thrd_t;
#define thread_local _Thread_local
#endif
typedef int once_flag;
typedef unsigned tss_t;
typedef int (*thrd_start_t)(void *);
typedef void (*tss_dtor_t)(void *);
#define __NEED_cnd_t
#define __NEED_mtx_t
#include <bits/alltypes.h>
#define TSS_DTOR_ITERATIONS 4
enum {
thrd_success = 0,
thrd_busy = 1,
thrd_error = 2,
thrd_nomem = 3,
thrd_timedout = 4,
};
enum {
mtx_plain = 0,
mtx_recursive = 1,
mtx_timed = 2,
};
#define ONCE_FLAG_INIT 0
int thrd_create(thrd_t *, thrd_start_t, void *);
_Noreturn void thrd_exit(int);
int thrd_detach(thrd_t);
int thrd_join(thrd_t, int *);
int thrd_sleep(const struct timespec *, struct timespec *);
void thrd_yield(void);
thrd_t thrd_current(void);
int thrd_equal(thrd_t, thrd_t);
don't shadow functions with macros in C++ C++ programmers typically expect something like "::function(x,y)" to work and may be surprised to find that "(::function)(x,y)" is actually required due to the headers declaring a macro version of some standard functions. We already omit function-like macros for C++ in most cases where there is a real function available. This commit extends this to the remaining function-like macros which have a real function version.
2014-12-09 02:18:12 +00:00
#ifndef __cplusplus
add threads.h and needed per-arch types for mtx_t and cnd_t based on patch by Jens Gustedt. mtx_t and cnd_t are defined in such a way that they are formally "compatible types" with pthread_mutex_t and pthread_cond_t, respectively, when accessed from a different translation unit. this makes it possible to implement the C11 functions using the pthread functions (which will dereference them with the pthread types) without having to use the same types, which would necessitate either namespace violations (exposing pthread type names in threads.h) or incompatible changes to the C++ name mangling ABI for the pthread types. for the rest of the types, things are much simpler; using identical types is possible without any namespace considerations.
2014-09-07 00:44:30 +00:00
#define thrd_equal(A, B) ((A) == (B))
don't shadow functions with macros in C++ C++ programmers typically expect something like "::function(x,y)" to work and may be surprised to find that "(::function)(x,y)" is actually required due to the headers declaring a macro version of some standard functions. We already omit function-like macros for C++ in most cases where there is a real function available. This commit extends this to the remaining function-like macros which have a real function version.
2014-12-09 02:18:12 +00:00
#endif
add threads.h and needed per-arch types for mtx_t and cnd_t based on patch by Jens Gustedt. mtx_t and cnd_t are defined in such a way that they are formally "compatible types" with pthread_mutex_t and pthread_cond_t, respectively, when accessed from a different translation unit. this makes it possible to implement the C11 functions using the pthread functions (which will dereference them with the pthread types) without having to use the same types, which would necessitate either namespace violations (exposing pthread type names in threads.h) or incompatible changes to the C++ name mangling ABI for the pthread types. for the rest of the types, things are much simpler; using identical types is possible without any namespace considerations.
2014-09-07 00:44:30 +00:00
void call_once(once_flag *, void (*)(void));
int mtx_init(mtx_t *, int);
void mtx_destroy(mtx_t *);
int mtx_lock(mtx_t *);
int mtx_timedlock(mtx_t *__restrict, const struct timespec *__restrict);
int mtx_trylock(mtx_t *);
int mtx_unlock(mtx_t *);
int cnd_init(cnd_t *);
void cnd_destroy(cnd_t *);
int cnd_broadcast(cnd_t *);
int cnd_signal(cnd_t *);
int cnd_timedwait(cnd_t *__restrict, mtx_t *__restrict, const struct timespec *__restrict);
int cnd_wait(cnd_t *, mtx_t *);
int tss_create(tss_t *, tss_dtor_t);
remove parameter names from public headers inclusion of these names was unintentional and in most cases is a namespace violation. Daniel Sabogal tracked down and reported these.
2016-10-20 21:04:37 +00:00
void tss_delete(tss_t);
add threads.h and needed per-arch types for mtx_t and cnd_t based on patch by Jens Gustedt. mtx_t and cnd_t are defined in such a way that they are formally "compatible types" with pthread_mutex_t and pthread_cond_t, respectively, when accessed from a different translation unit. this makes it possible to implement the C11 functions using the pthread functions (which will dereference them with the pthread types) without having to use the same types, which would necessitate either namespace violations (exposing pthread type names in threads.h) or incompatible changes to the C++ name mangling ABI for the pthread types. for the rest of the types, things are much simpler; using identical types is possible without any namespace considerations.
2014-09-07 00:44:30 +00:00
int tss_set(tss_t, void *);
void *tss_get(tss_t);
#ifdef __cplusplus
}
#endif
#endif