[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 17/18] qga: process_event() simplification
From: |
Marc-André Lureau |
Subject: |
[Qemu-devel] [PATCH v2 17/18] qga: process_event() simplification |
Date: |
Thu, 19 Jul 2018 20:41:10 +0200 |
Simplify the code around qmp_dispatch():
- rely on qmp_dispatch/check_obj() for message checking
- have a single send_response() point
- constify send_response() argument
It changes a couple of error messages:
* When @req isn't a dictionary, from
Invalid JSON syntax
to
QMP input must be a JSON object
* When @req lacks member "execute", from
this feature or command is not currently supported
to
QMP input lacks member 'execute'
Signed-off-by: Marc-André Lureau <address@hidden>
---
qga/main.c | 54 +++++++++++++-----------------------------------------
1 file changed, 13 insertions(+), 41 deletions(-)
diff --git a/qga/main.c b/qga/main.c
index 9032bb0c7a..f5c772314f 100644
--- a/qga/main.c
+++ b/qga/main.c
@@ -545,15 +545,15 @@ fail:
#endif
}
-static int send_response(GAState *s, QDict *payload)
+static int send_response(GAState *s, const QDict *rsp)
{
const char *buf;
QString *payload_qstr, *response_qstr;
GIOStatus status;
- g_assert(payload && s->channel);
+ g_assert(rsp && s->channel);
- payload_qstr = qobject_to_json(QOBJECT(payload));
+ payload_qstr = qobject_to_json(QOBJECT(rsp));
if (!payload_qstr) {
return -EINVAL;
}
@@ -579,63 +579,35 @@ static int send_response(GAState *s, QDict *payload)
return 0;
}
-static void process_command(GAState *s, QDict *req)
-{
- QDict *rsp;
- int ret;
-
- g_assert(req);
- g_debug("processing command");
- rsp = qmp_dispatch(&ga_commands, QOBJECT(req), false);
- if (rsp) {
- ret = send_response(s, rsp);
- if (ret < 0) {
- g_warning("error sending response: %s", strerror(-ret));
- }
- qobject_unref(rsp);
- }
-}
-
/* handle requests/control events coming in over the channel */
static void process_event(JSONMessageParser *parser, GQueue *tokens)
{
GAState *s = container_of(parser, GAState, parser);
- QObject *obj;
- QDict *req, *rsp;
+ QObject *req;
+ QDict *rsp = NULL;
Error *err = NULL;
int ret;
g_assert(s && parser);
g_debug("process_event: called");
- obj = json_parser_parse(tokens, NULL, &err);
+
+ req = json_parser_parse(tokens, NULL, &err);
if (err) {
- goto err;
- }
- req = qobject_to(QDict, obj);
- if (!req) {
- error_setg(&err, "Input must be a JSON object");
- goto err;
- }
- if (!qdict_haskey(req, "execute")) {
- g_warning("unrecognized payload format");
- error_setg(&err, QERR_UNSUPPORTED);
- goto err;
+ rsp = qmp_error_response(err);
+ goto end;
}
- process_command(s, req);
- qobject_unref(obj);
- return;
+ g_debug("processing command");
+ rsp = qmp_dispatch(&ga_commands, req, false);
-err:
- g_warning("failed to parse event: %s", error_get_pretty(err));
- rsp = qmp_error_response(err);
+end:
ret = send_response(s, rsp);
if (ret < 0) {
g_warning("error sending error response: %s", strerror(-ret));
}
qobject_unref(rsp);
- qobject_unref(obj);
+ qobject_unref(req);
}
/* false return signals GAChannel to close the current client connection */
--
2.18.0.129.ge3331758f1
- [Qemu-devel] [PATCH v2 07/18] qmp: drop json_parser_parse() wrapper, (continued)
- [Qemu-devel] [PATCH v2 07/18] qmp: drop json_parser_parse() wrapper, Marc-André Lureau, 2018/07/19
- [Qemu-devel] [PATCH v2 13/18] json-parser: set an error if parsing returned NULL, Marc-André Lureau, 2018/07/19
- [Qemu-devel] [PATCH v2 15/18] tests: add a few qemu-qmp tests, Marc-André Lureau, 2018/07/19
- [Qemu-devel] [PATCH v2 14/18] json-lexer: make it safe to call multiple times, Marc-André Lureau, 2018/07/19
- [Qemu-devel] [PATCH v2 12/18] qjson: return parsing error if unterminated input, Marc-André Lureau, 2018/07/19
- [Qemu-devel] [PATCH v2 18/18] RFC: qmp: common 'id' handling & make QGA conform to QMP spec, Marc-André Lureau, 2018/07/19
- [Qemu-devel] [PATCH v2 16/18] tests: add a qmp success-response test, Marc-André Lureau, 2018/07/19
- [Qemu-devel] [PATCH v2 17/18] qga: process_event() simplification,
Marc-André Lureau <=