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/*
* virnetmessage.h: basic RPC message encoding/decoding
*
* Copyright (C) 2010-2011 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __VIR_NET_MESSAGE_H__
# define __VIR_NET_MESSAGE_H__
# include "virnetprotocol.h"
typedef struct virNetMessageHeader *virNetMessageHeaderPtr;
typedef struct virNetMessageError *virNetMessageErrorPtr;
typedef struct _virNetMessage virNetMessage;
typedef virNetMessage *virNetMessagePtr;
typedef void (*virNetMessageFreeCallback)(virNetMessagePtr msg, void *opaque);
struct _virNetMessage {
bool tracked;
char *buffer; /* Typically VIR_NET_MESSAGE_MAX + VIR_NET_MESSAGE_LEN_MAX */
size_t bufferLength;
size_t bufferOffset;
virNetMessageHeader header;
virNetMessageFreeCallback cb;
void *opaque;
size_t nfds;
int *fds;
size_t donefds;
virNetMessagePtr next;
};
virNetMessagePtr virNetMessageNew(bool tracked);
void virNetMessageClear(virNetMessagePtr);
void virNetMessageFree(virNetMessagePtr msg);
virNetMessagePtr virNetMessageQueueServe(virNetMessagePtr *queue)
ATTRIBUTE_NONNULL(1);
void virNetMessageQueuePush(virNetMessagePtr *queue,
virNetMessagePtr msg)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
int virNetMessageEncodeHeader(virNetMessagePtr msg)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetMessageDecodeLength(virNetMessagePtr msg)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetMessageDecodeHeader(virNetMessagePtr msg)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetMessageEncodePayload(virNetMessagePtr msg,
xdrproc_t filter,
void *data)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
int virNetMessageDecodePayload(virNetMessagePtr msg,
xdrproc_t filter,
void *data)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
int virNetMessageEncodeNumFDs(virNetMessagePtr msg);
int virNetMessageDecodeNumFDs(virNetMessagePtr msg);
int virNetMessageEncodePayloadRaw(virNetMessagePtr msg,
const char *buf,
size_t len)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
int virNetMessageEncodePayloadEmpty(virNetMessagePtr msg)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
void virNetMessageSaveError(virNetMessageErrorPtr rerr)
ATTRIBUTE_NONNULL(1);
int virNetMessageDupFD(virNetMessagePtr msg,
size_t slot);
#endif /* __VIR_NET_MESSAGE_H__ */
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