Page Speed Optimization Libraries  1.4.26.1
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Public Member Functions
net_instaweb::NullRWLock Class Reference

#include "null_rw_lock.h"

Inheritance diagram for net_instaweb::NullRWLock:
net_instaweb::ThreadSystem::RWLock net_instaweb::AbstractMutex

List of all members.

Public Member Functions

virtual bool TryLock ()
 Attempt to take mutex, true on success, false if held by another thread.
virtual void Lock ()
 Block until mutex is available, then take the mutex.
virtual void Unlock ()
 Release the mutex, permitting a blocked lock operation (if any) to proceed.
virtual bool ReaderTryLock ()
virtual void ReaderLock ()
 Block until this Mutex is free, or shared, then acquire a share of it.
virtual void ReaderUnlock ()
 Release a read share of this Mutex.
virtual void DCheckReaderLocked ()

Detailed Description

Implements an empty mutex for single-threaded programs that need to work with interfaces that require mutexes.


Member Function Documentation

Optionally checks that reader lock is held (for invariant checking purposes). Default implementation does no checking.

Reimplemented from net_instaweb::ThreadSystem::RWLock.

virtual bool net_instaweb::NullRWLock::ReaderTryLock ( ) [virtual]

ReaderLock/Unlock are different from normal locks. Reader locks are shared while normal locks are exclusive. Normal lock cannot happen when reader has a lock. Try to acquire a read share of this lock without blocking.

Implements net_instaweb::ThreadSystem::RWLock.


The documentation for this class was generated from the following file:
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