Way back in QEMU 4.0, the -audiodev command line option was introduced
for configuring audio backends. This CLI option does not use QemuOpts
so it is not visible for introspection in 'query-command-line-options',
instead using the QAPI Audiodev type. Unfortunately there is also no
QMP command that uses the Audiodev type, so it is not introspectable
with 'query-qmp-schema' either.
This introduces a 'query-audiodev' command that simply reflects back
the list of configured -audiodev command line options. This alone is
maybe not very useful by itself, but it makes Audiodev introspectable
via 'query-qmp-schema', so that libvirt (and other upper layer tools)
can discover the available audiodevs.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
[thuth: Update for upcoming QEMU v8.0, and use QAPI_LIST_PREPEND]
Message-Id: <
20230123083957.20349-2-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
#include "monitor/monitor.h"
#include "qemu/timer.h"
#include "qapi/error.h"
+#include "qapi/clone-visitor.h"
#include "qapi/qobject-input-visitor.h"
#include "qapi/qapi-visit-audio.h"
+#include "qapi/qapi-commands-audio.h"
#include "qemu/cutils.h"
#include "qemu/module.h"
#include "qemu/help_option.h"
return bytes;
}
+
+AudiodevList *qmp_query_audiodevs(Error **errp)
+{
+ AudiodevList *ret = NULL;
+ AudiodevListEntry *e;
+ QSIMPLEQ_FOREACH(e, &audiodevs, next) {
+ QAPI_LIST_PREPEND(ret, QAPI_CLONE(Audiodev, e->dev));
+ }
+ return ret;
+}
'sndio': 'AudiodevSndioOptions',
'spice': 'AudiodevGenericOptions',
'wav': 'AudiodevWavOptions' } }
+
+##
+# @query-audiodevs:
+#
+# Returns information about audiodev configuration
+#
+# Returns: array of @Audiodev
+#
+# Since: 8.0
+#
+##
+{ 'command': 'query-audiodevs',
+ 'returns': ['Audiodev'] }