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qemu-ga: switch to the new error format on the wire

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IMPORTANT: this BREAKS qemu-ga compatibility for the error response.

Instead of returning something like:

{ "error": { "class": "InvalidParameterValue",
             "data": {"name": "mode", "expected": "halt|powerdown|reboot" } } }

qemu-ga now returns:

 { "error": { "class": "GenericError",
              "desc": "Parameter 'mode' expects halt|powerdown|reboot" } }

Notice that this is also a bug fix, as qemu-ga wasn't returning the
human message.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Luiz Capitulino 2012-08-01 16:30:13 -03:00
parent de253f1491
commit 93b91c59db
4 changed files with 13 additions and 3 deletions
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1
Makefile.objs
View File

@ -211,6 +211,7 @@ common-obj-$(CONFIG_SMARTCARD_NSS) += $(libcacard-y)
# qapi
qapi-obj-y = qapi/
qapi-obj-y += qapi-types.o qapi-visit.o
common-obj-y += qmp-marshal.o qapi-visit.o qapi-types.o
common-obj-y += qmp.o hmp.o

1
qapi/qmp-core.h
View File

@ -49,6 +49,7 @@ void qmp_disable_command(const char *name);
void qmp_enable_command(const char *name);
bool qmp_command_is_enabled(const char *name);
char **qmp_get_command_list(void);
QObject *qmp_build_error_object(Error *errp);
#endif

10
qapi/qmp-dispatch.c
View File

@ -14,6 +14,7 @@
#include "qemu-objects.h"
#include "qapi/qmp-core.h"
#include "json-parser.h"
#include "qapi-types.h"
#include "error.h"
#include "error_int.h"
#include "qerror.h"
@ -109,6 +110,13 @@ static QObject *do_qmp_dispatch(QObject *request, Error **errp)
return ret;
}
QObject *qmp_build_error_object(Error *errp)
{
return qobject_from_jsonf("{ 'class': %s, 'desc': %s }",
ErrorClass_lookup[error_get_class(errp)],
error_get_pretty(errp));
}
QObject *qmp_dispatch(QObject *request)
{
Error *err = NULL;
@ -119,7 +127,7 @@ QObject *qmp_dispatch(QObject *request)
rsp = qdict_new();
if (err) {
qdict_put_obj(rsp, "error", error_get_qobject(err));
qdict_put_obj(rsp, "error", qmp_build_error_object(err));
error_free(err);
} else if (ret) {
qdict_put_obj(rsp, "return", ret);

4
qemu-ga.c
View File

@ -515,7 +515,7 @@ static void process_event(JSONMessageParser *parser, QList *tokens)
} else {
g_warning("failed to parse event: %s", error_get_pretty(err));
}
qdict_put_obj(qdict, "error", error_get_qobject(err));
qdict_put_obj(qdict, "error", qmp_build_error_object(err));
error_free(err);
} else {
qdict = qobject_to_qdict(obj);
@ -532,7 +532,7 @@ static void process_event(JSONMessageParser *parser, QList *tokens)
qdict = qdict_new();
g_warning("unrecognized payload format");
error_set(&err, QERR_UNSUPPORTED);
qdict_put_obj(qdict, "error", error_get_qobject(err));
qdict_put_obj(qdict, "error", qmp_build_error_object(err));
error_free(err);
}
ret = send_response(s, QOBJECT(qdict));