libvirt/src/remote/qemu_protocol.x
Eric Blake e7708a1c47 qemu: wire up RPC for qemu monitor events
These are the first async events in the qemu protocol, so this
patch looks rather big compared to most RPC additions.  However,
a large majority of this patch is just mechanical copy-and-paste
from recently-added network events.  It didn't help that this
is also the first virConnect rather than virDomain prefix
associated with a qemu-specific API.

* src/remote/qemu_protocol.x (qemu_*_domain_monitor_event_*): New
structs and RPC messages.
* src/rpc/gendispatch.pl: Adjust naming conventions.
* daemon/libvirtd.h (daemonClientPrivate): Track qemu events.
* daemon/remote.c (remoteClientFreeFunc): Likewise.
(remoteRelayDomainQemuMonitorEvent)
(qemuDispatchConnectDomainMonitorEventRegister)
(qemuDispatchConnectDomainMonitorEventDeregister): New functions.
* src/remote/remote_driver.c (qemuEvents): Handle qemu events.
(doRemoteOpen): Register for events.
(remoteNetworkBuildEventLifecycle)
(remoteConnectDomainQemuMonitorEventRegister)
(remoteConnectDomainQemuMonitorEventDeregister): New functions.
* src/qemu_protocol-structs: Regenerate.

Signed-off-by: Eric Blake <eblake@redhat.com>
2014-03-20 11:25:37 -06:00

159 lines
4.2 KiB
C

/* -*- c -*-
* qemu_protocol.x: private protocol for communicating between
* remote_internal driver and libvirtd. This protocol is
* internal and may change at any time.
*
* Copyright (C) 2010-2014 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/>.
*
* Author: Chris Lalancette <clalance@redhat.com>
*/
%#include "internal.h"
%#include "remote_protocol.h"
%#include <arpa/inet.h>
/*----- Protocol. -----*/
struct qemu_domain_monitor_command_args {
remote_nonnull_domain dom;
remote_nonnull_string cmd;
unsigned int flags;
};
struct qemu_domain_monitor_command_ret {
remote_nonnull_string result;
};
struct qemu_domain_attach_args {
unsigned int pid_value;
unsigned int flags;
};
struct qemu_domain_attach_ret {
remote_nonnull_domain dom;
};
struct qemu_domain_agent_command_args {
remote_nonnull_domain dom;
remote_nonnull_string cmd;
int timeout;
unsigned int flags;
};
struct qemu_domain_agent_command_ret {
remote_string result;
};
struct qemu_connect_domain_monitor_event_register_args {
remote_domain dom;
remote_string event;
unsigned int flags;
};
struct qemu_connect_domain_monitor_event_register_ret {
int callbackID;
};
struct qemu_connect_domain_monitor_event_deregister_args {
int callbackID;
};
struct qemu_domain_monitor_event_msg {
int callbackID;
remote_nonnull_domain dom;
remote_nonnull_string event;
hyper seconds;
unsigned int micros;
remote_string details;
};
/* Define the program number, protocol version and procedure numbers here. */
const QEMU_PROGRAM = 0x20008087;
const QEMU_PROTOCOL_VERSION = 1;
enum qemu_procedure {
/* Each function must be preceded by a comment providing one or
* more annotations:
*
* - @generate: none|client|server|both
*
* Whether to generate the dispatch stubs for the server
* and/or client code.
*
* - @readstream: paramnumber
* - @writestream: paramnumber
*
* The @readstream or @writestream annotations let daemon and src/remote
* create a stream. The direction is defined from the src/remote point
* of view. A readstream transfers data from daemon to src/remote. The
* <paramnumber> specifies at which offset the stream parameter is inserted
* in the function parameter list.
*
* - @priority: low|high
*
* Each API that might eventually access hypervisor's monitor (and thus
* block) MUST fall into low priority. However, there are some exceptions
* to this rule, e.g. domainDestroy. Other APIs MAY be marked as high
* priority. If in doubt, it's safe to choose low. Low is taken as default,
* and thus can be left out.
*/
/**
* @generate: none
* @priority: low
* @acl: domain:write
*/
QEMU_PROC_DOMAIN_MONITOR_COMMAND = 1,
/**
* @generate: both
* @priority: low
* @acl: domain:start
* @acl: domain:write
*/
QEMU_PROC_DOMAIN_ATTACH = 2,
/**
* @generate: both
* @priority: low
* @acl: domain:write
*/
QEMU_PROC_DOMAIN_AGENT_COMMAND = 3,
/**
* @generate: none
* @priority: high
* @acl: connect:search_domains
* @acl: connect:write
* @aclfilter: domain:getattr
*/
QEMU_PROC_CONNECT_DOMAIN_MONITOR_EVENT_REGISTER = 4,
/**
* @generate: none
* @priority: high
* @acl: connect:write
*/
QEMU_PROC_CONNECT_DOMAIN_MONITOR_EVENT_DEREGISTER = 5,
/**
* @generate: both
* @acl: none
*/
QEMU_PROC_DOMAIN_MONITOR_EVENT = 6
};