Module latch

type box_latch_t¶

A lock for cooperative multitasking environment

box_latch_t *box_latch_new(void)¶

Allocate and initialize the new latch.

Результат:	allocated latch object
Тип результата:	box_latch_t *

void box_latch_delete(box_latch_t *latch)¶

Destroy and free the latch.

Параметры:	latch (box_latch_t*) – latch to destroy

void box_latch_lock(box_latch_t *latch)¶

Lock a latch. Waits indefinitely until the current fiber can gain access to the latch. Since version 2.11.0, locks are acquired exactly in the order in which they were requested.

Параметры:	latch (box_latch_t*) – latch to lock

int box_latch_trylock(box_latch_t *latch)¶

Try to lock a latch. Return immediately if the latch is locked.

Параметры:	latch (box_latch_t*) – latch to lock
Результат:	status of operation. 0 - success, 1 - latch is locked
Тип результата:	int

void box_latch_unlock(box_latch_t *latch)¶

Unlock a latch. The fiber calling this function must own the latch.

Параметры:	latch (box_latch_t*) – latch to unlock