SyncReaderWriter::readlock Waits for a read lock &reftitle.description; public boolSyncReaderWriter::readlock intwait-1 Obtains a read lock on a SyncReaderWriter object. &reftitle.parameters; wait The number of milliseconds to wait for a lock. A value of -1 is infinite. &reftitle.returnvalues; &return.success; &reftitle.examples; <function>SyncReaderWriter::readlock</function> example readlock(); /* ... */ $readwrite->readunlock(); ?> ]]> &reftitle.seealso; SyncReaderWriter::readunlock