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cmap_dispatch(3) [centos 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)

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

NAME
votequorum_trackstart - Enable callbacks notification. SYNOPSIS
#include <corosync/votequorum.h> int votequorum_trackstart(votequorum_handle_t *handle, uint64_t context, unsigned int flags); DESCRIPTION
The votequorum_trackstart function is used to enable callbacks notification from the votequorum API. Every time the voting configuraton changes (eg a node joins or leave the cluster) or the quorum status change or the expected votes changes, the notification is queued. The notification is dispatched via votequorum_dispatch() function that will execute the callback. The context option allows to set a tracking context. The flags argument is defined by one or more of the following values and values can be bitwise-or'd #define CS_TRACK_CURRENT 0x01 #define CS_TRACK_CHANGES 0x02 #define CS_TRACK_CHANGES_ONLY 0x04 RETURN VALUE
This call returns the CS_OK value if successful, otherwise an error is returned. ERRORS
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 SEE ALSO
votequorum_overview(8), votequorum_initialize(3), votequorum_finalize(3), votequorum_getinfo(3), votequorum_trackstop(3), votequo- rum_fd_get(3), votequorum_dispatch(3), votequorum_context_set(3), votequorum_context_get(3), votequorum_setexpected(3), votequo- rum_setvotes(3) corosync Man Page 2014-06-10 VOTEQUORUM_TRACKSTART(3)

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