xemu/qapi/qmp-registry.c
Marc-André Lureau c98939daec qga: return a more explicit error on why a command is disabled
qmp_disable_command() now takes an optional error string to return a
more explicit error message.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1928806

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
*fix up 80+ char line
Signed-off-by: Michael Roth <michael.roth@amd.com>
2021-03-16 20:21:47 -05:00

94 lines
2.2 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 "qemu/osdep.h"
#include "qapi/qmp/dispatch.h"
void qmp_register_command(QmpCommandList *cmds, const char *name,
QmpCommandFunc *fn, QmpCommandOptions options)
{
QmpCommand *cmd = g_malloc0(sizeof(*cmd));
/* QCO_COROUTINE and QCO_ALLOW_OOB are incompatible for now */
assert(!((options & QCO_COROUTINE) && (options & QCO_ALLOW_OOB)));
cmd->name = name;
cmd->fn = fn;
cmd->enabled = true;
cmd->options = options;
QTAILQ_INSERT_TAIL(cmds, cmd, node);
}
const QmpCommand *qmp_find_command(const QmpCommandList *cmds, const char *name)
{
QmpCommand *cmd;
QTAILQ_FOREACH(cmd, cmds, node) {
if (strcmp(cmd->name, name) == 0) {
return cmd;
}
}
return NULL;
}
static void qmp_toggle_command(QmpCommandList *cmds, const char *name,
bool enabled, const char *disable_reason)
{
QmpCommand *cmd;
QTAILQ_FOREACH(cmd, cmds, node) {
if (strcmp(cmd->name, name) == 0) {
cmd->enabled = enabled;
cmd->disable_reason = disable_reason;
return;
}
}
}
void qmp_disable_command(QmpCommandList *cmds, const char *name,
const char *disable_reason)
{
qmp_toggle_command(cmds, name, false, disable_reason);
}
void qmp_enable_command(QmpCommandList *cmds, const char *name)
{
qmp_toggle_command(cmds, name, true, NULL);
}
bool qmp_command_is_enabled(const QmpCommand *cmd)
{
return cmd->enabled;
}
const char *qmp_command_name(const QmpCommand *cmd)
{
return cmd->name;
}
bool qmp_has_success_response(const QmpCommand *cmd)
{
return !(cmd->options & QCO_NO_SUCCESS_RESP);
}
void qmp_for_each_command(const QmpCommandList *cmds, qmp_cmd_callback_fn fn,
void *opaque)
{
const QmpCommand *cmd;
QTAILQ_FOREACH(cmd, cmds, node) {
fn(cmd, opaque);
}
}