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101 lines
3.4 KiB
Groff
101 lines
3.4 KiB
Groff
.\"/*
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.\" * Copyright (c) 2004 MontaVista Software, Inc.
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.\" *
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.\" * All rights reserved.
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.\" *
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.\" * Author: Steven Dake (sdake@mvista.com)
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.\" *
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.\" * This software licensed under BSD license, the text of which follows:
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.\" *
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.\" * Redistribution and use in source and binary forms, with or without
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.\" * modification, are permitted provided that the following conditions are met:
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.\" *
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.\" * - Redistributions of source code must retain the above copyright notice,
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.\" * this list of conditions and the following disclaimer.
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.\" * - Redistributions in binary form must reproduce the above copyright notice,
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.\" * this list of conditions and the following disclaimer in the documentation
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.\" * and/or other materials provided with the distribution.
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.\" * - Neither the name of the MontaVista Software, Inc. nor the names of its
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.\" * contributors may be used to endorse or promote products derived from this
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.\" * software without specific prior written permission.
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.\" *
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.\" * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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.\" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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.\" * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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.\" * THE POSSIBILITY OF SUCH DAMAGE.
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.\" */
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.TH EVS_DISPATCH 3 2004-08-31 "openais Man Page" "Openais Programmer's Manual"
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.SH NAME
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evs_dispatch \- Dispatches callbacks from the EVS service
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.SH SYNOPSIS
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.B #include <openais/evs.h>
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.sp
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.BI "int evs_dispatch(evs_handle_t *" handle ", evs_dispatch_t *" dispatch_types ");
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.SH DESCRIPTION
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The
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.B evs_dispatch
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function is used to dispatch configuration changes or messages from the
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extended virtual synchrony API.
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.PP
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Each application may have several connections to the EVS API. Each application
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uses the
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.I handle
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argument to uniquely identify the connection.
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.PP
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The
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.I dispatch_types
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argument is used to identify the type of dispatch to execute. The possible types are
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defined by the structure:
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.IP
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.RS
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.ne 18
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.nf
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.ta 4n 30n 33n
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typedef enum {
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EVS_DISPATCH_ONE,
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EVS_DISPATCH_ALL,
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EVS_DISPATCH_BLOCKING
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} evs_dispatch_t;
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.ta
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.fi
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.RE
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.IP
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.PP
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.PP
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The dispatch values have the following meanings:
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.TP
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.B EVS_DISPATCH_ONE
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Dispatch atleast one callback, blocking until the callback is dispatched.
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.TP
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.B EVS_DISPATCH_ALL
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Dispatch all waiting callbacks without blocking to wait for any callbacks.
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.TP
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.B EVS_DISPATCH_BLOCKING
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Dispatch all callbacks blocking indefinately. This is used in a threaded
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program where a thread is created, and then evs_dispatch() is called immediately
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from the created thread to execute callbacks.
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.SH RETURN VALUE
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This call returns the EVS_OK value if successful, otherwise an error is returned.
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.PP
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.SH ERRORS
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The errors are undocumented.
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.SH "SEE ALSO"
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.BR evs_overview (8),
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.BR evs_initialize (3),
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.BR evs_finalize (3),
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.BR evs_fd_get (3),
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.BR evs_join (3),
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.BR evs_leave (3),
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.BR evs_mcast_joined (3),
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.BR evs_mcast_groups (3)
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.PP
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