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AIX Version 4.3 Kernel and Subsystems Technical Reference, Volume 1

lock_init Kernel Service


Initializes a complex lock.


#include <sys/lock_def.h>
void lock_init (lock_addr, can_sleep)
complex_lock_t lock_addr;
boolean_t can_sleep;


lock_addr Specifies the address of the lock word.
can_sleep This parameter is ignored.


The lock_init kernel service initializes the specified complex lock. This kernel service must be called for each complex lock before the lock is used. The complex lock must previously have been allocated with the lock_alloc kernel service.

Execution Environment

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

Return Values

The lock_init kernel service has no return values.

Implementation Specifics

The lock_init kernel service is part of the Base Operating System (BOS) Runtime.

The can_sleep parameter is included for compatibility with OSF/1 1.1, but is ignored. Using a value of TRUE for this parameter will maintain OSF/1 1.1 semantics.

Related Information

The lock_alloc kernel service, lock_free kernel service.

Understanding Locking and Locking Kernel Services in AIX Kernel Extensions and Device Support Programming Concepts

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