mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-09-23 16:10:54 +00:00
e914dcfdaa
We have seen an issue on s390x platform where domain XMLs larger than 1MB were used. The define command was finished successfully. The dumpxml command was not successful (i.e. could not encode message payload). Enlarged message related sizes (e.g. maximum string size, message size, etc.) to handle larger system configurations used on s390x platform. To improve handling of the RPC message size the allocation during encode process is changed to a dynamic one (i.e. starting with 64kB initial size and increasing that size in steps up to 16MB if the payload data is larger). Signed-off-by: Daniel Hansel <daniel.hansel@linux.vnet.ibm.com> Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
100 lines
3.3 KiB
C
100 lines
3.3 KiB
C
/*
|
|
* 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, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#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; /* Initially VIR_NET_MESSAGE_INITIAL + VIR_NET_MESSAGE_LEN_MAX */
|
|
/* Maximum 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__ */
|