DbEnv::mutex_lock()

#include <db_cxx.h>
 
int
DbEnv::mutex_lock(db_mutex_t mutex);

The DbEnv::mutex_lock() method locks the mutex allocated by DbEnv::mutex_alloc() . The thread of control calling DbEnv::mutex_lock() will block until the lock is available.

The DbEnv::mutex_lock() method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success.

Parameters

mutex

The mutex parameter is a mutex previously allocated by DbEnv::mutex_alloc() .

Errors

The DbEnv::mutex_lock() method may fail and throw a DbException exception, encapsulating one of the following non-zero errors, or return one of the following non-zero errors:

EINVAL

An invalid flag value or parameter was specified.

Class

DbEnv

See Also

Mutex Methods