SLEEP_TRYLOCK(D3)SLEEP_TRYLOCK(D3)NAMESLEEP_TRYLOCK - try to acquire a sleep lock
SYNOPSIS
#include <sys/types.h>
#include <sys/ksynch.h>
#include <sys/ddi.h>
boolean_t SLEEP_TRYLOCK(sleep_t *lockp);
Arguments
lockp Pointer to the sleep lock to be acquired.
DESCRIPTION
If the lock specified by lockp is immediately available (can be acquired
without sleeping) the SLEEP_TRYLOCK function acquires the lock. If the
lock is not immediately available, SLEEP_TRYLOCK returns without
acquiring the lock.
Return Values
SLEEP_TRYLOCK returns TRUE (a non-zero value) if the lock is successfully
acquired or FALSE (zero) if the lock is not acquired.
USAGE
Level
Base or Interrupt.
Synchronization Constraints
Does not sleep.
Driver-defined basic locks, read/write locks, and sleep locks may be held
across calls to this function.
REFERENCESSLEEP_ALLOC(D3), SLEEP_INIT(D3), SLEEP_DEALLOC(D3), SLEEP_DESTROY(D3),
SLEEP_LOCK(D3), SLEEP_LOCK_SIG(D3), SLEEP_LOCKAVAIL(D3), SLEEP_UNLOCK(D3)
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