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[Qemu-devel] [PULL 32/36] qmp: add command "x-oob-test"
From: |
Eric Blake |
Subject: |
[Qemu-devel] [PULL 32/36] qmp: add command "x-oob-test" |
Date: |
Mon, 12 Mar 2018 13:36:23 -0500 |
From: Peter Xu <address@hidden>
This command is only used to test OOB functionality. It should not be
used for any other purposes.
Reviewed-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Fam Zheng <address@hidden>
Signed-off-by: Peter Xu <address@hidden>
Message-Id: <address@hidden>
Reviewed-by: Eric Blake <address@hidden>
[eblake: grammar tweak]
Signed-off-by: Eric Blake <address@hidden>
---
qapi/misc.json | 18 ++++++++++++++++++
qmp.c | 16 ++++++++++++++++
2 files changed, 34 insertions(+)
diff --git a/qapi/misc.json b/qapi/misc.json
index b6ebf210ba8..fc3550f3acc 100644
--- a/qapi/misc.json
+++ b/qapi/misc.json
@@ -3279,3 +3279,21 @@
##
{ 'event': 'COMMAND_DROPPED' ,
'data': { 'id': 'any', 'reason': 'CommandDropReason' } }
+
+##
+# @x-oob-test:
+#
+# Test OOB functionality. When sending this command with lock=true,
+# it'll try to hang the dispatcher. When sending it with lock=false,
+# it'll try to notify the locked thread to continue. Note: it should
+# only be used by QMP test program rather than anything else.
+#
+# Since: 2.12
+#
+# Example:
+#
+# { "execute": "x-oob-test",
+# "arguments": { "lock": true } }
+##
+{ 'command': 'x-oob-test', 'data' : { 'lock': 'bool' },
+ 'allow-oob': true }
diff --git a/qmp.c b/qmp.c
index 7e606d84867..ea3760acb12 100644
--- a/qmp.c
+++ b/qmp.c
@@ -770,3 +770,19 @@ MemoryInfo *qmp_query_memory_size_summary(Error **errp)
return mem_info;
}
+
+static QemuSemaphore x_oob_test_sem;
+
+static void __attribute__((constructor)) x_oob_test_init(void)
+{
+ qemu_sem_init(&x_oob_test_sem, 0);
+}
+
+void qmp_x_oob_test(bool lock, Error **errp)
+{
+ if (lock) {
+ qemu_sem_wait(&x_oob_test_sem);
+ } else {
+ qemu_sem_post(&x_oob_test_sem);
+ }
+}
--
2.14.3
- [Qemu-devel] [PULL 13/36] qobject: introduce qstring_get_try_str(), (continued)
- [Qemu-devel] [PULL 13/36] qobject: introduce qstring_get_try_str(), Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 26/36] qmp: add new event "command-dropped", Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 19/36] monitor: let mon_list be tail queue, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 01/36] qapi2texi: minor python code simplification, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 12/36] docs: update QMP documents for OOB commands, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 14/36] qobject: introduce qobject_get_try_str(), Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 22/36] monitor: introduce monitor_qmp_respond(), Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 20/36] monitor: allow using IO thread for parsing, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 24/36] monitor: let suspend/resume work even with QMPs, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 29/36] qmp: support out-of-band (oob) execution, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 32/36] qmp: add command "x-oob-test",
Eric Blake <=
- [Qemu-devel] [PULL 34/36] tests: qmp-test: add oob test, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 28/36] qapi: introduce new cmd option "allow-oob", Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 21/36] qmp: introduce QMPCapability, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 30/36] qmp: isolate responses into io thread, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 15/36] qobject: let object_property_get_str() use new API, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 23/36] monitor: let suspend_cnt be thread safe, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 27/36] monitor: send event when command queue full, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 25/36] monitor: separate QMP parser and dispatcher, Eric Blake, 2018/03/12
- [Qemu-devel] [PULL 31/36] monitor: enable IO thread for (qmp & !mux) typed, Eric Blake, 2018/03/12