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c-treeDB API for C++ - Developers Guide

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CTDB_ON_ SESSION_LOGOUT

A CTDB_ON_SESSION_LOGOUT callback is invoked before a session logout is performed. The handle passed as a parameter with this callback is a session handle and you can safely typecast the handle parameter as a pCTDBSESSION structure pointer.

The session logout callback can be used to undo and cleanup operations performed by a session logon callback. No other callbacks calls will be issued after a CTDB_ON_SESSION_LOGOUT callback.

c-treeDB C API Example


CTDBRET ctdbDECL OnSessionLogout(CTHANDLE Handle)

{

CTDBRET Retval = CTDBRET_OK;

pCTDBSESSION pSession = (pCTDBSESSION)Handle;

if (!pSession)

Retval = CTDBRET_NOTSESSION;

else

{

/* release any memory allocated by session logon callback */

if (pSession->localTag)

{

pSession->OnFree(pSession->localTag)

pSession->localTag = NULL;

}

}

return Retval;

}

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