APR::ThreadRWLock - Perl API for APR thread read/write locks
use APR::ThreadRWLock ();
my $mutex = APR::ThreadRWLock->new($r->pool);
APR::ThreadRWLock interfaces APR thread read/write locks.
See srclib/apr/locks/unix/thread_rwlock.c in your Apache source tree. At the time of this writing these methods are not supported on all platforms. Thus, check your libraries!
APR::ThreadRWLock provides the following functions and/or methods:
APR::ThreadRWLock 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.
META: Autogenerated - needs to be reviewed/completed
Destroy the lock and free the associated memory.
the lock to destroy.
Acquire the read lock for the given lock. The calling thread acquires the read lock if a writer does not hold the lock and there are no writers blocked on the lock. Otherwize it is put to sleep until these conditions are met.
$ret = $lock->rdlock();
the lock on which to acquire the lock.
Performs the same operation as rdlock with the exception that the function shall fail if the thread would be blocked.
$ret = $lock->tryrdlock();
Acquire the write lock for the given lock. The calling thread acquires the write lock if if no other thread (reader or writer) holds it. Otherwize it is put to sleep until this condition is met.
$ret = $lock->wrlock();
Performs the same operation as wrlock with the exception that the function shall fail if the thread would be blocked.
$ret = $lock->trywrlock();
Create a new lock
my $lock = APR::ThreadRWLock->new($p);
META: should probably be renamed to pool(), like all other pool accessors
Get the pool used by this thread_lock.
$ret = $obj->pool_get();
apr_pool_t the pool
Release the lock for the given lock.
$ret = $lock->unlock();
the lock from which to release the lock.
mod_perl 2.0 documentation.
mod_perl 2.0 and its core modules are copyrighted under The Apache Software License, Version 2.0.
The mod_perl development team and numerous contributors.
To install mod_perl2, copy and paste the appropriate command in to your terminal.
perl -MCPAN -e shell
For more information on module installation, please visit the detailed CPAN module installation guide.