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

NAME

       cpg_dispatch - Dispatches callbacks from the CPG service

SYNOPSIS

       #include <corosync/cpg.h>

       int cpg_dispatch(cpg_handle_t handle, cpg_dispatch_t *dispatch_types);

DESCRIPTION

       The cpg_dispatch function is used to dispatch configuration changes or messages from the closed process groups API.

       Each  application may have several connections to the CPG 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 defined by the structure:

	      typedef enum {
		      CPG_DISPATCH_ONE,
		      CPG_DISPATCH_ALL,
		      CPG_DISPATCH_BLOCKING
	      } cpg_dispatch_t;

       The dispatch values have the following meanings:

       CPG_DISPATCH_ONE
	      Dispatch atleast one callback, blocking until the callback is dispatched.

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

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

RETURN VALUE

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

ERRORS

       The errors are undocumented.

SEE ALSO

       cpg_overview(8),  cpg_initialize(3),  cpg_finalize(3),  cpg_fd_get(3),  cpg_dispatch(3),  cpg_join(3),  cpg_leave(3),  cpg_mcast_joined(3),
       cpg_membership_get(3) cpg_zcb_alloc(3) cpg_zcb_free(3) cpg_zcb_mcast_joined(3) cpg_context_get(3) cpg_context_set(3) cpg_local_get(3)

corosync Man Page						    2004-08-31							   CPG_DISPATCH(3)