Method blockingAstHandler

src/jrd/nbak.cpp:102–137

}

void NBackupStateLock::blockingAstHandler(thread_db* tdbb)
{
	// master instance should not try to acquire localStateLock or enter "flush" mode
	if (backup_manager->isMaster())
	{
		GlobalRWLock::blockingAstHandler(tdbb);
		return;
	}

	// Ensure we have no dirty pages in local cache before releasing
	// of state lock
	if (!backup_manager->databaseFlushInProgress())
	{
		backup_manager->beginFlush();
		NBAK_TRACE_AST( ("backup_manager->beginFlush()") );

		Firebird::MutexUnlockGuard counterGuard(counterMutex, FB_FUNCTION);
		CCH_flush_ast(tdbb);
		NBAK_TRACE_AST(("database FLUSHED"));
	}

	{	// scope
		backup_manager->stateBlocking = true;
		Firebird::MutexUnlockGuard counterGuard(counterMutex, FB_FUNCTION);
		backup_manager->stateBlocking = !backup_manager->localStateLock.tryBeginWrite(FB_FUNCTION);
		if (backup_manager->stateBlocking)
			return;
	}

	GlobalRWLock::blockingAstHandler(tdbb);

	if (cachedLock->lck_physical == LCK_read)
		backup_manager->endFlush();

	backup_manager->localStateLock.endWrite();
}


/******************************** NBackupAllocLock ******************************/