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11573f3ec1
Defines the extensions to the remote protocol for generic data streams. Adds a bunch of helper code to the libvirtd daemon for working with data streams. * daemon/Makefile.am: Add stream.c/stream.h to build * daemon/stream.c, qemud/stream.h: Generic helper functions for creating new streams, associating streams with clients, finding existing streams for a client and removing/deleting streams. * src/remote/remote_protocol.x: Add a new 'REMOTE_STREAM' constant for the 'enum remote_message_type' for encoding stream data in wire messages. Add a new 'REMOTE_CONTINUE' constant to 'enum remote_message_status' to indicate further data stream messsages are expected to follow. Document how the remote_message_header is used to encode data streams * src/remote/remote_protocol.h: Regenerate * daemon/dispatch.c: Remove assumption that a error message sent to client is always type=REMOTE_REPLY. It may now also be type=REMOTE_STREAM. Add convenient method for sending outgoing stream data packets. Log and ignore non-filtered incoming stream packets. Add a method for serializing a stream error message * daemon/dispatch.h: Add API for serializing stream errors and sending stream data packets * daemon/qemud.h: Add struct qemud_client_stream for tracking active data streams for clients. Tweak filter function operation so that it accepts a client object too. * daemon/qemud.c: Refactor code for free'ing message objects which have been fully transmitted into separate method. Release all active streams when client shuts down. Change filter function to be responsible for queueing the message
81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
/*
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* dispatch.h: RPC message dispatching infrastructure
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*
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* Copyright (C) 2007, 2008, 2009 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Richard W.M. Jones <rjones@redhat.com>
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#ifndef __LIBVIRTD_DISPATCH_H__
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#define __LIBVIRTD_DISPATCH_H__
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#include "libvirtd.h"
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int
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remoteDecodeClientMessageHeader (struct qemud_client_message *req);
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int
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remoteEncodeClientMessageHeader (struct qemud_client_message *req);
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int
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remoteDispatchClientRequest (struct qemud_server *server,
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struct qemud_client *client,
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struct qemud_client_message *req);
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void remoteDispatchFormatError (remote_error *rerr,
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const char *fmt, ...)
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ATTRIBUTE_FMT_PRINTF(2, 3);
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void remoteDispatchAuthError (remote_error *rerr);
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void remoteDispatchGenericError (remote_error *rerr);
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void remoteDispatchOOMError (remote_error *rerr);
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void remoteDispatchConnError (remote_error *rerr,
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virConnectPtr conn);
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int
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remoteSerializeReplyError(struct qemud_client *client,
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remote_error *rerr,
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remote_message_header *req);
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int
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remoteSerializeStreamError(struct qemud_client *client,
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remote_error *rerr,
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int proc,
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int serial);
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/* Having this here is dubious. It should be in remote.h
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* but qemud.c shouldn't depend on that header directly.
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* Refactor this later to deal with this properly.
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*/
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int remoteRelayDomainEvent (virConnectPtr conn ATTRIBUTE_UNUSED,
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virDomainPtr dom,
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int event,
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int detail,
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void *opaque);
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int
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remoteSendStreamData(struct qemud_client *client,
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struct qemud_client_stream *stream,
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const char *data,
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size_t len);
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#endif /* __LIBVIRTD_DISPATCH_H__ */
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