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7bdb05ea7c
If the remote daemon args/ret unions ever become zero length (due to a build / Makefile bug) then bad stuff happens at runtime. Add a compile time assertion to check for this kind of problem * daemon/remote.h: Ensure non-zero length unions
86 lines
2.3 KiB
C
86 lines
2.3 KiB
C
/*
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* remote.h: handlers for RPC method calls
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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_REMOTE_H__
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# define __LIBVIRTD_REMOTE_H__
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# include "libvirtd.h"
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typedef union {
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# include "remote_dispatch_args.h"
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} dispatch_args;
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verify(sizeof(dispatch_args) > 0);
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typedef union {
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# include "remote_dispatch_ret.h"
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} dispatch_ret;
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verify(sizeof(dispatch_ret) > 0);
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typedef union {
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# include "qemu_dispatch_args.h"
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} qemu_dispatch_args;
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verify(sizeof(qemu_dispatch_args) > 0);
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typedef union {
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# include "qemu_dispatch_ret.h"
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} qemu_dispatch_ret;
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verify(sizeof(qemu_dispatch_ret) > 0);
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/**
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* When the RPC handler is called:
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*
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* - Server object is unlocked
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* - Client object is unlocked
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*
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* Both must be locked before use. Server lock must
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* be held before attempting to lock client.
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*
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* Without any locking, it is safe to use:
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*
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* 'conn', 'rerr', 'args and 'ret'
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*/
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typedef int (*dispatch_fn) (struct qemud_server *server,
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struct qemud_client *client,
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virConnectPtr conn,
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remote_message_header *hdr,
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remote_error *err,
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dispatch_args *args,
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dispatch_ret *ret);
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typedef struct {
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dispatch_fn fn;
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xdrproc_t args_filter;
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xdrproc_t ret_filter;
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} dispatch_data;
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const dispatch_data const *remoteGetDispatchData(int proc);
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const dispatch_data const *qemuGetDispatchData(int proc);
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#endif /* __LIBVIRTD_REMOTE_H__ */
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