Synopsis

  use APR::ThreadMutex ();

  my $mutex = APR::ThreadMutex->new($r->pool);
  $mutex->lock;
  $mutex->unlock;
  $mutex->trylock;

Description

APR::ThreadMutex interfaces APR thread mutexes.

API

APR::ThreadMutex provides the following functions and/or methods:

Unsupported API

APR::ThreadMutex also provides auto-generated Perl interface for a few other methods which aren't tested at the moment and therefore their API is a subject to change. These methods will be finalized later as a need arises. If you want to rely on any of the following methods please contact the the mod_perl development mailing list so we can help each other take the steps necessary to shift the method to an officially supported API.

DESTROY

META: Autogenerated - needs to be reviewed/completed

Destroy the mutex and free the memory associated with the lock.

  $mutex->DESTROY();

• obj: $mutex ( APR::ThreadMutex object )

  the mutex to destroy.

• ret: no return value
• since: subject to change

lock

META: Autogenerated - needs to be reviewed/completed

Acquire the lock for the given mutex. If the mutex is already locked, the current thread will be put to sleep until the lock becomes available.

  $ret = $mutex->lock();

• obj: $mutex ( APR::ThreadMutex object )

  the mutex on which to acquire the lock.

• ret: $ret ( integer )
• since: subject to change

new

Create a new mutex

  my $mutex = APR::ThreadMutex->new($p);

• obj: APR::ThreadMutex ( class name )
• arg1: $p ( APR::Pool object )
• ret: $mutex ( APR::ThreadMutex object )
• since: subject to change

pool_get

META: Autogenerated - needs to be reviewed/completed

META: should probably be renamed to pool(), like all other pool accessors

Get the pool used by this thread_mutex.

  $ret = $obj->pool_get();

• obj: $obj ( APR::ThreadMutex object )
• ret: $ret ( APR::Pool object )

  apr_pool_t the pool

• since: subject to change

trylock

META: Autogenerated - needs to be reviewed/completed

Attempt to acquire the lock for the given mutex. If the mutex has already been acquired, the call returns immediately with APR_EBUSY. Note: it is important that the APR_STATUS_IS_EBUSY(s) macro be used to determine if the return value was APR_EBUSY, for portability reasons.

  $ret = $mutex->trylock();

• obj: $mutex ( APR::ThreadMutex object )

  the mutex on which to attempt the lock acquiring.

• ret: $ret (integer)
• since: subject to change

unlock

META: Autogenerated - needs to be reviewed/completed

Release the lock for the given mutex.

  $ret = $mutex->unlock();

• obj: $mutex ( APR::ThreadMutex object )

  the mutex from which to release the lock.

• ret: $ret ( integer )
• since: subject to change

See Also

mod_perl 2.0 documentation.

Copyright

mod_perl 2.0 and its core modules are copyrighted under The Apache Software License, Version 2.0.

Authors

The mod_perl development team and numerous contributors.