thrd_exit

C

Language

Headers

Type support

Program utilities

Variadic function support

Error handling

Dynamic memory management

Date and time utilities

Strings library

Algorithms

Numerics

Input/output support

Localization support

Atomic operations (C11)

Thread support (C11)

Technical Specifications

Thread support library

Threads
thrd_create thrd_equal thrd_current thrd_sleep thrd_yield thrd_exit	thrd_detach thrd_join thrd_successthrd_timedoutthrd_busythrd_nomemthrd_error
Mutual exclusion
mtx_init mtx_lock mtx_timedlock mtx_trylock call_once	mtx_unlock mtx_destroy mtx_plainmtx_recursivemtx_timed
Condition variables
cnd_init cnd_signal cnd_broadcast	cnd_wait cnd_timedwait cnd_destroy
Thread-local storage
thread_local TSS_DTOR_ITERATIONS tss_create	tss_get tss_set tss_delete

Defined in header <threads.h>
_Noreturn void thrd_exit( int res );		(since C11)

First, for every thread-specific storage key which was created with a non-null destructor and for which the associated value is non-null (see tss_create), thrd_exit sets the value associated with the key to NULL and then invokes the destructor with the previous value of the key. The order in which the destructors are invoked is unspecified.

If, after this, there remain keys with both non-null destructors and values (e.g. if a destructor executed tss_set), the process is repeated up to TSS_DTOR_ITERATIONS times.

FInally, the thrd_exit function terminates execution of the calling thread and sets its result code to res.

If the last thread in the program is terminated with thrd_exit, the entire program terminates as if by calling exit with EXIT_SUCCESS as the argument (so the functions registered by atexit are executed in the context of that last thread)

Parameters

res

-

the result value to return

Return value

(none)

References

• C11 standard (ISO/IEC 9899:2011):

• 7.26.5.5 The thrd_exit function (p: 384)

See also

thrd_join (C11)	blocks until a thread terminates (function)
thrd_detach (C11)	detaches a thread (function)