qemu/qapi/qmp-registry.c
Luiz Capitulino d34b867d81 qapi: add support for command options
Options allow for changes in commands behavior. This commit introduces
the QCO_NO_SUCCESS_RESP option, which causes a command to not emit a
success response.

This is needed by commands such as qemu-ga's guest-shutdown, which
may not be able to complete before the VM vanishes. In this case, it's
useful and simpler not to bother sending a success response.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2012-05-15 09:15:16 -05:00

99 lines
2.0 KiB
C

/*
* Core Definitions for QAPI/QMP Dispatch
*
* Copyright IBM, Corp. 2011
*
* Authors:
* Anthony Liguori <aliguori@us.ibm.com>
* Michael Roth <mdroth@us.ibm.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*
*/
#include "qapi/qmp-core.h"
static QTAILQ_HEAD(QmpCommandList, QmpCommand) qmp_commands =
QTAILQ_HEAD_INITIALIZER(qmp_commands);
void qmp_register_command(const char *name, QmpCommandFunc *fn,
QmpCommandOptions options)
{
QmpCommand *cmd = g_malloc0(sizeof(*cmd));
cmd->name = name;
cmd->type = QCT_NORMAL;
cmd->fn = fn;
cmd->enabled = true;
cmd->options = options;
QTAILQ_INSERT_TAIL(&qmp_commands, cmd, node);
}
QmpCommand *qmp_find_command(const char *name)
{
QmpCommand *cmd;
QTAILQ_FOREACH(cmd, &qmp_commands, node) {
if (strcmp(cmd->name, name) == 0) {
return cmd;
}
}
return NULL;
}
static void qmp_toggle_command(const char *name, bool enabled)
{
QmpCommand *cmd;
QTAILQ_FOREACH(cmd, &qmp_commands, node) {
if (strcmp(cmd->name, name) == 0) {
cmd->enabled = enabled;
return;
}
}
}
void qmp_disable_command(const char *name)
{
qmp_toggle_command(name, false);
}
void qmp_enable_command(const char *name)
{
qmp_toggle_command(name, true);
}
bool qmp_command_is_enabled(const char *name)
{
QmpCommand *cmd;
QTAILQ_FOREACH(cmd, &qmp_commands, node) {
if (strcmp(cmd->name, name) == 0) {
return cmd->enabled;
}
}
return false;
}
char **qmp_get_command_list(void)
{
QmpCommand *cmd;
int count = 1;
char **list_head, **list;
QTAILQ_FOREACH(cmd, &qmp_commands, node) {
count++;
}
list_head = list = g_malloc0(count * sizeof(char *));
QTAILQ_FOREACH(cmd, &qmp_commands, node) {
*list = strdup(cmd->name);
list++;
}
return list_head;
}