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[Qemu-devel] [RFC v4 06/27] monitor: move the cur_mon hack deeper for QM
From: |
Peter Xu |
Subject: |
[Qemu-devel] [RFC v4 06/27] monitor: move the cur_mon hack deeper for QMP |
Date: |
Thu, 16 Nov 2017 21:05:49 +0800 |
In monitor_qmp_read(), we have the hack to temporarily replace the
cur_mon pointer. Now we move this hack deeper inside the QMP dispatcher
routine since the Monitor pointer can be passed in to that using the new
JSON Parser opaque field now.
This does not make much sense as a single patch. However, this will be
a big step for the next patch, when the QMP dispatcher routine will be
split from the QMP parser.
Reviewed-by: Eric Blake <address@hidden>
Reviewed-by: Fam Zheng <address@hidden>
Signed-off-by: Peter Xu <address@hidden>
---
monitor.c | 19 ++++++++++---------
1 file changed, 10 insertions(+), 9 deletions(-)
diff --git a/monitor.c b/monitor.c
index ab80d32c70..322dfb5f31 100644
--- a/monitor.c
+++ b/monitor.c
@@ -3813,7 +3813,7 @@ static void handle_qmp_command(JSONMessageParser *parser,
GQueue *tokens,
{
QObject *req, *rsp = NULL, *id = NULL;
QDict *qdict = NULL;
- Monitor *mon = cur_mon;
+ Monitor *mon = opaque, *old_mon;
Error *err = NULL;
req = json_parser_parse_err(tokens, NULL, &err);
@@ -3838,8 +3838,13 @@ static void handle_qmp_command(JSONMessageParser
*parser, GQueue *tokens,
QDECREF(req_json);
}
+ old_mon = cur_mon;
+ cur_mon = mon;
+
rsp = qmp_dispatch(cur_mon->qmp.commands, req);
+ cur_mon = old_mon;
+
if (mon->qmp.commands == &qmp_cap_negotiation_commands) {
qdict = qdict_get_qdict(qobject_to_qdict(rsp), "error");
if (qdict
@@ -3876,13 +3881,9 @@ err_out:
static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size)
{
- Monitor *old_mon = cur_mon;
-
- cur_mon = opaque;
-
- json_message_parser_feed(&cur_mon->qmp.parser, (const char *) buf, size);
+ Monitor *mon = opaque;
- cur_mon = old_mon;
+ json_message_parser_feed(&mon->qmp.parser, (const char *) buf, size);
}
static void monitor_read(void *opaque, const uint8_t *buf, int size)
@@ -3956,7 +3957,7 @@ static void monitor_qmp_event(void *opaque, int event)
break;
case CHR_EVENT_CLOSED:
json_message_parser_destroy(&mon->qmp.parser);
- json_message_parser_init(&mon->qmp.parser, handle_qmp_command, NULL);
+ json_message_parser_init(&mon->qmp.parser, handle_qmp_command, mon);
mon_refcount--;
monitor_fdsets_cleanup();
break;
@@ -4106,7 +4107,7 @@ void monitor_init(Chardev *chr, int flags)
qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_qmp_read,
monitor_qmp_event, NULL, mon, NULL, true);
qemu_chr_fe_set_echo(&mon->chr, true);
- json_message_parser_init(&mon->qmp.parser, handle_qmp_command, NULL);
+ json_message_parser_init(&mon->qmp.parser, handle_qmp_command, mon);
} else {
qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_read,
monitor_event, NULL, mon, NULL, true);
--
2.13.6
- [Qemu-devel] [RFC v4 00/27] QMP: out-of-band (OOB) execution support, Peter Xu, 2017/11/16
- [Qemu-devel] [RFC v4 02/27] qobject: introduce qobject_get_try_str(), Peter Xu, 2017/11/16
- [Qemu-devel] [RFC v4 01/27] qobject: introduce qstring_get_try_str(), Peter Xu, 2017/11/16
- [Qemu-devel] [RFC v4 04/27] monitor: move skip_flush into monitor_data_init, Peter Xu, 2017/11/16
- [Qemu-devel] [RFC v4 05/27] qjson: add "opaque" field to JSONMessageParser, Peter Xu, 2017/11/16
- [Qemu-devel] [RFC v4 03/27] qobject: let object_property_get_str() use new API, Peter Xu, 2017/11/16
- [Qemu-devel] [RFC v4 06/27] monitor: move the cur_mon hack deeper for QMP,
Peter Xu <=
- [Qemu-devel] [RFC v4 07/27] monitor: unify global init, Peter Xu, 2017/11/16
- [Qemu-devel] [RFC v4 08/27] monitor: let mon_list be tail queue, Peter Xu, 2017/11/16
- [Qemu-devel] [RFC v4 10/27] monitor: allow to use IO thread for parsing, Peter Xu, 2017/11/16
- [Qemu-devel] [RFC v4 09/27] monitor: create monitor dedicate iothread, Peter Xu, 2017/11/16
[Qemu-devel] [RFC v4 11/27] qmp: introduce QMPCapability, Peter Xu, 2017/11/16
[Qemu-devel] [RFC v4 13/27] qmp: introduce some capability helpers, Peter Xu, 2017/11/16