cpg_dispatch(3) [centos man page]

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 {
		      CS_DISPATCH_ONE,
		      CS_DISPATCH_ALL,
		      CS_DISPATCH_BLOCKING
	      } cpg_dispatch_t;

       The dispatch values have the following meanings:

       CS_DISPATCH_ONE
	      Dispatch atleast 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  cpg_dis-
	      patch() 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.

RETURN VALUE

       This call returns the CS_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)

       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						    2004-08-31							   CPG_DISPATCH(3)

Check Out this Related Man Page

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)

Linux and UNIX Man Pages

cpg_dispatch(3) [centos man page]

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