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.\" ========================================================================
.\"
.IX Title "docs::api::APR::ThreadMutex 3"
.TH docs::api::APR::ThreadMutex 3 "2013-04-16" "perl v5.16.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification. Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
APR::ThreadMutex \- Perl API for APR thread mutexes
.SH "Synopsis"
.IX Header "Synopsis"
.Vb 1
\& use APR::ThreadMutex ();
\&
\& my $mutex = APR::ThreadMutex\->new($r\->pool);
\& $mutex\->lock;
\& $mutex\->unlock;
\& $mutex\->trylock;
.Ve
.SH "Description"
.IX Header "Description"
\&\f(CW\*(C`APR::ThreadMutex\*(C'\fR interfaces \s-1APR\s0 thread mutexes.
.SH "API"
.IX Header "API"
\&\f(CW\*(C`APR::ThreadMutex\*(C'\fR provides the following functions and/or methods:
.SH "Unsupported API"
.IX Header "Unsupported API"
\&\f(CW\*(C`APR::ThreadMutex\*(C'\fR also provides auto-generated Perl interface for a
few other methods which aren't tested at the moment and therefore
their \s-1API\s0 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 \s-1API\s0.
.ie n .SS """DESTROY"""
.el .SS "\f(CWDESTROY\fP"
.IX Subsection "DESTROY"
\&\s-1META:\s0 Autogenerated \- needs to be reviewed/completed
.PP
Destroy the mutex and free the memory associated with the lock.
.PP
.Vb 1
\& $mutex\->DESTROY();
.Ve
.ie n .IP "obj: $mutex ( ""APR::ThreadMutex object"" )" 4
.el .IP "obj: \f(CW$mutex\fR ( \f(CWAPR::ThreadMutex object\fR )" 4
.IX Item "obj: $mutex ( APR::ThreadMutex object )"
the mutex to destroy.
.IP "ret: no return value" 4
.IX Item "ret: no return value"
.PD 0
.IP "since: subject to change" 4
.IX Item "since: subject to change"
.PD
.ie n .SS """lock"""
.el .SS "\f(CWlock\fP"
.IX Subsection "lock"
\&\s-1META:\s0 Autogenerated \- needs to be reviewed/completed
.PP
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.
.PP
.Vb 1
\& $ret = $mutex\->lock();
.Ve
.ie n .IP "obj: $mutex ( ""APR::ThreadMutex object"" )" 4
.el .IP "obj: \f(CW$mutex\fR ( \f(CWAPR::ThreadMutex object\fR )" 4
.IX Item "obj: $mutex ( APR::ThreadMutex object )"
the mutex on which to acquire the lock.
.ie n .IP "ret: $ret ( integer )" 4
.el .IP "ret: \f(CW$ret\fR ( integer )" 4
.IX Item "ret: $ret ( integer )"
.PD 0
.IP "since: subject to change" 4
.IX Item "since: subject to change"
.PD
.ie n .SS """new"""
.el .SS "\f(CWnew\fP"
.IX Subsection "new"
Create a new mutex
.PP
.Vb 1
\& my $mutex = APR::ThreadMutex\->new($p);
.Ve
.ie n .IP "obj: ""APR::ThreadMutex"" ( class name )" 4
.el .IP "obj: \f(CWAPR::ThreadMutex\fR ( class name )" 4
.IX Item "obj: APR::ThreadMutex ( class name )"
.PD 0
.ie n .IP "arg1: $p ( ""APR::Pool object"" )" 4
.el .IP "arg1: \f(CW$p\fR ( \f(CWAPR::Pool object\fR )" 4
.IX Item "arg1: $p ( APR::Pool object )"
.ie n .IP "ret: $mutex ( ""APR::ThreadMutex object"" )" 4
.el .IP "ret: \f(CW$mutex\fR ( \f(CWAPR::ThreadMutex object\fR )" 4
.IX Item "ret: $mutex ( APR::ThreadMutex object )"
.IP "since: subject to change" 4
.IX Item "since: subject to change"
.PD
.ie n .SS """pool_get"""
.el .SS "\f(CWpool_get\fP"
.IX Subsection "pool_get"
\&\s-1META:\s0 Autogenerated \- needs to be reviewed/completed
.PP
\&\s-1META:\s0 should probably be renamed to \fIpool()\fR, like all other pool
accessors
.PP
Get the pool used by this thread_mutex.
.PP
.Vb 1
\& $ret = $obj\->pool_get();
.Ve
.ie n .IP "obj: $obj ( ""APR::ThreadMutex object"" )" 4
.el .IP "obj: \f(CW$obj\fR ( \f(CWAPR::ThreadMutex object\fR )" 4
.IX Item "obj: $obj ( APR::ThreadMutex object )"
.PD 0
.ie n .IP "ret: $ret ( ""APR::Pool object"" )" 4
.el .IP "ret: \f(CW$ret\fR ( \f(CWAPR::Pool object\fR )" 4
.IX Item "ret: $ret ( APR::Pool object )"
.PD
apr_pool_t the pool
.IP "since: subject to change" 4
.IX Item "since: subject to change"
.ie n .SS """trylock"""
.el .SS "\f(CWtrylock\fP"
.IX Subsection "trylock"
\&\s-1META:\s0 Autogenerated \- needs to be reviewed/completed
.PP
Attempt to acquire the lock for the given mutex. If the mutex has already
been acquired, the call returns immediately with \s-1APR_EBUSY\s0. Note: it
is important that the \s-1APR_STATUS_IS_EBUSY\s0(s) macro be used to determine
if the return value was \s-1APR_EBUSY\s0, for portability reasons.
.PP
.Vb 1
\& $ret = $mutex\->trylock();
.Ve
.ie n .IP "obj: $mutex ( ""APR::ThreadMutex object"" )" 4
.el .IP "obj: \f(CW$mutex\fR ( \f(CWAPR::ThreadMutex object\fR )" 4
.IX Item "obj: $mutex ( APR::ThreadMutex object )"
the mutex on which to attempt the lock acquiring.
.ie n .IP "ret: $ret (integer)" 4
.el .IP "ret: \f(CW$ret\fR (integer)" 4
.IX Item "ret: $ret (integer)"
.PD 0
.IP "since: subject to change" 4
.IX Item "since: subject to change"
.PD
.ie n .SS """unlock"""
.el .SS "\f(CWunlock\fP"
.IX Subsection "unlock"
\&\s-1META:\s0 Autogenerated \- needs to be reviewed/completed
.PP
Release the lock for the given mutex.
.PP
.Vb 1
\& $ret = $mutex\->unlock();
.Ve
.ie n .IP "obj: $mutex ( ""APR::ThreadMutex object"" )" 4
.el .IP "obj: \f(CW$mutex\fR ( \f(CWAPR::ThreadMutex object\fR )" 4
.IX Item "obj: $mutex ( APR::ThreadMutex object )"
the mutex from which to release the lock.
.ie n .IP "ret: $ret ( integer )" 4
.el .IP "ret: \f(CW$ret\fR ( integer )" 4
.IX Item "ret: $ret ( integer )"
.PD 0
.IP "since: subject to change" 4
.IX Item "since: subject to change"
.PD
.SH "See Also"
.IX Header "See Also"
mod_perl 2.0 documentation.
.SH "Copyright"
.IX Header "Copyright"
mod_perl 2.0 and its core modules are copyrighted under
The Apache Software License, Version 2.0.
.SH "Authors"
.IX Header "Authors"
The mod_perl development team and numerous
contributors.
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