lock_islocked Kernel Service

Purpose

Tests whether a complex lock is locked.

#include <sys/lock_def.h>

int lock_islocked ( lock_addr)
complex_lock_t lock_addr;

Table 1. Parameter
Item	Description
`lock_addr`	Specifies the address of the lock word to test.

The lock_islocked kernel service determines whether the specified complex lock is free, or is locked in either shared-read or exclusive-write mode.

The lock_islocked kernel service can be called from the process environment only.

Table 2. Return Values
Item	Description
TRUE	Indicates that the lock was locked.
FALSE	Indicates that the lock was free.