NAME¶
evs_dispatch - Dispatches callbacks from the EVS service
SYNOPSIS¶
#include <corosync/evs.h>
int evs_dispatch(evs_handle_t handle, evs_dispatch_t
*dispatch_types);
DESCRIPTION¶
The
evs_dispatch function is used to dispatch configuration changes or
messages from the extended virtual synchrony API.
Each application may have several connections to the EVS 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 defined by the structure:
typedef enum {
EVS_DISPATCH_ONE,
EVS_DISPATCH_ALL,
EVS_DISPATCH_BLOCKING
} evs_dispatch_t;
The dispatch values have the following meanings:
- EVS_DISPATCH_ONE
- Dispatch atleast one callback, blocking until the callback is
dispatched.
- EVS_DISPATCH_ALL
- Dispatch all waiting callbacks without blocking to wait for any
callbacks.
- EVS_DISPATCH_BLOCKING
- Dispatch all callbacks blocking indefinately. This is used in a threaded
program where a thread is created, and then evs_dispatch() is called
immediately from the created thread to execute callbacks.
RETURN VALUE¶
This call returns the EVS_OK value if successful, otherwise an error is
returned.
ERRORS¶
The errors are undocumented.
SEE ALSO¶
evs_overview(8),
evs_initialize(3),
evs_finalize(3),
evs_fd_get(3),
evs_join(3),
evs_leave(3),
evs_mcast_joined(3),
evs_mcast_groups(3),
evs_membership_get(3) evs_context_get(3)
evs_context_set(3)
