CMAP_DISPATCH(3)				    Corosync Cluster Engine Programmer's Manual 				  CMAP_DISPATCH(3)

NAME

       cmap_dispatch - Dispatches callbacks from the CMAP service

SYNOPSIS

       #include <corosync/cmap.h>

       cs_error_t cmap_dispatch (cmap_handle_t handle, cs_dispatch_flags_t dispatch_types);

DESCRIPTION

       The cmap_dispatch function is used to dispatch configuration changes.

       Each application may have several connections to the CMAP API.  Each  application uses the handle argument to uniquely identify the connec-
       tion.

       The dispatch_types argument is used to identify the type of dispatch to execute.  The possible types are  CS_DISPATCH_ONE,  CS_DISPATCH_ALL
       and CS_DISPATCH_BLOCKING.

       The dispatch values have the following meanings:

       CS_DISPATCH_ONE
	      Dispatch at least one callback, blocking until the callback is dispatched.

       CS_DISPATCH_ALL
	      Dispatch all waiting callbacks without blocking to wait for any callbacks.

       CS_DISPATCH_BLOCKING
	      Dispatch	all callbacks blocking indefinitely.  This is used in a threaded program where a thread is created, and then cs_dispatch()
	      is called immediately from the created thread to execute callbacks.

       CS_DISPATCH_ONE_NONBLOCKING
	      Dispatch at most one callback. If there is no pending callback, CS_ERR_TRY_AGAIN is returned.

       It's needed to call cmap_track_add(3) to add tracked items and receive callbacks.

RETURN VALUE

       This call returns the CS_OK value if successful, otherwise an error is returned.

SEE ALSO

       cmap_track_add(3), cmap_track_delete(3), cmap_overview(8)

       CS_ERR_TRY_AGAIN Resource temporarily unavailable

       CS_ERR_INVALID_PARAM Invalid argument

       CS_ERR_ACCESS Permission denied

       CS_ERR_LIBRARY The connection failed

       CS_ERR_INTERRUPT System call inturrupted by a signal

       CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported

       CS_ERR_MESSAGE_ERROR Incorrect auth message received

       CS_ERR_NO_MEMORY Not enough memory to completed the requested task

corosync Man Page						    23/01/2012							  CMAP_DISPATCH(3)