Collaboration diagram for Database Replication Functions:

Functions
RDM_RETCODE	rdm_dbReplicationSend (RDM_DB db, void replicationBuffer, size_t bufferSize, size_t pBytesWritten)
	Populate a buffer with all of the changes to an in-memory database. More...

RDM_RETCODE	rdm_dbReplicationReceive (RDM_DB db, const void *replicationBuffer, size_t messageSize)
	Apply a replication buffer with changes to an in-memory database. More...

Detailed Description

Replication functions for the core database API. All the functions here are located in RDM DB Engine Library. Linker option:

    -lrdmrdm

Function Documentation

rdm_dbReplicationReceive()

RDM_RETCODE rdm_dbReplicationReceive	(	RDM_DB	db,
		const void *	replicationBuffer,
		size_t	messageSize
	)

#include <rdmdbapi.h>

Apply a replication buffer with changes to an in-memory database.

This function will apply a replication buffer containing changes to an in-memory database. The replication buffer is generated by rdm_dbReplicationSend.

Locking Requirements: None.

Return values

sOKAY	Normal, successful return.
sTRUNCATE	Result is truncated.

See also: rdm_rdmReplicationSend

Parameters

[in]	db	An allocated RDM_DB
[in]	replicationBuffer	The buffer to read the changes from
[in]	messageSize	The size of the message

rdm_dbReplicationSend()

RDM_RETCODE rdm_dbReplicationSend	(	RDM_DB	db,
		void *	replicationBuffer,
		size_t	bufferSize,
		size_t *	pBytesWritten
	)

#include <rdmdbapi.h>

Populate a buffer with all of the changes to an in-memory database.

This function will populate a buffer with all of the changes to an in-memory database. The buffer can be used by rdm_dbReplicationReceive to apply the changes to another database.

Locking Requirements: Read lock on all tables

Return values

sOKAY	Normal, successful return.
sTRUNCATE	Result is truncated.

See also: rdm_rdmReplicationReceive

Parameters

[in]	db	An allocated RDM_DB
	replicationBuffer	[in/out] The buffer to write the changes to
[in]	bufferSize	The size of replicationBuffer
[out]	pBytesWritten	The number of bytes written into replicationBuffer