mirror_corosync/lib/util.h
2006-07-10 22:18:32 +00:00

162 lines
3.7 KiB
C

/*
* Copyright (c) 2002-2003 MontaVista Software, Inc.
*
* All rights reserved.
*
* Author: Steven Dake (sdake@mvista.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef AIS_UTIL_H_DEFINED
#define AIS_UTIL_H_DEFINED
#include <pthread.h>
#include <sys/poll.h>
#include <sys/socket.h>
#include "../include/ipc_gen.h"
/* Debug macro
*/
#ifdef DEBUG
#define DPRINT(s) printf s
#else
#define DPRINT(s)
#endif
#ifdef SO_NOSIGPIPE
#ifndef MSG_NOSIGNAL
#define MSG_NOSIGNAL 0
#endif
void socket_nosigpipe(int s);
#else
#define socket_nosigpipe(s)
#endif
struct saHandleDatabase {
unsigned int handleCount;
struct saHandle *handles;
pthread_mutex_t mutex;
void (*handleInstanceDestructor) (void *);
};
struct saVersionDatabase {
int versionCount;
SaVersionT *versionsSupported;
};
struct queue {
int head;
int tail;
int used;
int usedhw;
int size;
void *items;
int bytesPerItem;
};
SaAisErrorT
saServiceConnect (
int *responseOut,
int *callbackOut,
enum service_types service);
SaAisErrorT
saRecvRetry (
int s,
void *msg,
size_t len);
SaAisErrorT
saSendRetry (
int s,
const void *msg,
size_t len);
SaAisErrorT saSendMsgRetry (
int s,
struct iovec *iov,
int iov_len);
SaAisErrorT saSendMsgReceiveReply (
int s,
struct iovec *iov,
int iov_len,
void *responseMessage,
int responseLen);
SaAisErrorT saSendReceiveReply (
int s,
void *requestMessage,
int requestLen,
void *responseMessage,
int responseLen);
SaAisErrorT
saPollRetry (
struct pollfd *ufds,
unsigned int nfds,
int timeout);
SaAisErrorT
saHandleCreate (
struct saHandleDatabase *handleDatabase,
int instanceSize,
SaUint64T *handleOut);
SaAisErrorT
saHandleDestroy (
struct saHandleDatabase *handleDatabase,
SaUint64T handle);
SaAisErrorT
saHandleInstanceGet (
struct saHandleDatabase *handleDatabase,
SaUint64T handle,
void **instance);
SaAisErrorT
saHandleInstancePut (
struct saHandleDatabase *handleDatabase,
SaUint64T handle);
SaAisErrorT
saVersionVerify (
struct saVersionDatabase *versionDatabase,
SaVersionT *version);
#define offset_of(type,member) (int)(&(((type *)0)->member))
SaTimeT
clustTimeNow(void);
#endif /* AIS_UTIL_H_DEFINED */