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 connection.

       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 interrupted by a signal

       CS_ERR_NOT_SUPPORTED The requested protocol/functionality not supported

       CS_ERR_MESSAGE_ERROR Incorrect auth message received

       CS_ERR_NO_MEMORY Not enough memory to complete the requested task