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Berkeley DB: DB_ENV->mutex_lock
DB_ENV->mutex_lock API Ref

#include <db.h>

int DB_ENV->mutex_lock(DB_ENV *dbenv, db_mutex_t mutex);


Description: DB_ENV->mutex_lock

The DB_ENV->mutex_lock method locks the mutex allocated by DB_ENV->mutex_alloc. The thread of control calling DB_ENV->mutex_lock will block until the lock is available.

The DB_ENV->mutex_lock method may not be called before the DB_ENV->open method is called.

The DB_ENV->mutex_lock method returns a non-zero error value on failure and 0 on success.

Parameters
mutex

Errors

The DB_ENV->mutex_lock method may fail and return one of the following non-zero errors:


EINVAL


Class DB_ENV
See Also Database Environments and Related Methods

APIRef

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