C Library Header – threads

The <threads.h> header defines functions for managing multiple Threads as well as mutexes and condition variables.

The <threads.h> header shall define the following macro constants:

thrd_success thrd_timedout thrd_busy thrd_nomem thrd_error	indicates a thread error status (C11)
thread_local	thread local type macro (C11)
TSS_DTOR_ITERATIONS	maximum number of times destructors are called (C11)

The <threads.h> header shall define the following functions:

thrd_create	creates a thread (C11)
thrd_equal	checks if two identifiers refer to the same thread (C11)
thrd_current	obtains the current thread identifier (C11)
thrd_sleep	suspends execution of the calling thread for the given period of time (C11)
thrd_yield	yields the current time slice (C11)
thrd_exit	terminates the calling thread (C11)
thrd_detach	detaches a thread (C11)
thrd_join	blocks until a thread terminates (C11)
mtx_init	creates a mutex (C11)
mtx_lock	blocks until locks a mutex (C11)
mtx_timedlock	blocks until locks a mutex or times out (C11)
mtx_trylock	locks a mutex or returns without blocking if already locked (C11)
mtx_unlock	unlocks a mutex (C11)
mtx_destroy	destroys a mutex (C11)
cnd_init	creates a condition variable (C11)
cnd_signal	unblocks one thread blocked on a condition variable (C11)
cnd_broadcast	unblocks all threads blocked on a condition variable (C11)
cnd_wait	blocks on a condition variable (C11)
cnd_timedwait	blocks on a condition variable, with a timeout (C11)
cnd_destroy	destroys a condition variable (C11)
tss_create	creates thread-specific storage pointer with a given destructor (C11)
tss_get	reads from thread-specific storage (C11)
tss_set	write to thread-specific storage (C11)
tss_delete	releases the resources held by a given thread-specific pointer (C11)

The <threads.h> header shall define the following type:

thrd_t	implementation-defined complete object type identifying a thread
thrd_start_t	a typedef of the function pointer type int(*)(void*), used by thrd_create (C11)
mtx_t	mutex identifier
mtx_plain mtx_recursive mtx_timed	defines the type of a mutex (enum)(C11)
cnd_t	condition variable identifier
tss_t	thread-specific storage pointer
tss_dtor_t	function pointer type void(*)(void*), used for TSS destructor

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Related topics:
<tgmath.h>   |   <time.h>   |   <uchar.h>   |   <wchar.h>   |   <wctype.h>   |   Standard Library in C

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