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[Qemu-devel] [PATCH v7 21/23] qmp: add command "x-oob-test"
From: |
Peter Xu |
Subject: |
[Qemu-devel] [PATCH v7 21/23] qmp: add command "x-oob-test" |
Date: |
Wed, 24 Jan 2018 13:39:55 +0800 |
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>
---
qapi-schema.json | 18 ++++++++++++++++++
qmp.c | 16 ++++++++++++++++
2 files changed, 34 insertions(+)
diff --git a/qapi-schema.json b/qapi-schema.json
index d6c89efc0d..59ea3e2051 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -3252,3 +3252,21 @@
##
{ 'event': 'COMMAND_DROPPED' ,
'data': { 'id': 'any', 'reason': 'CommandDropReason' } }
+
+##
+# @x-oob-test:
+#
+# Test OOB functionality. When send this command with lock=true,
+# it'll try to hang the dispatcher. When send 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 52cfd2d81c..c7dcbe72e3 100644
--- a/qmp.c
+++ b/qmp.c
@@ -717,3 +717,19 @@ 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] [PATCH v7 11/23] monitor: introduce monitor_qmp_respond(), (continued)
- [Qemu-devel] [PATCH v7 11/23] monitor: introduce monitor_qmp_respond(), Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 12/23] monitor: let suspend_cnt be thread safe, Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 13/23] monitor: let suspend/resume work even with QMPs, Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 14/23] monitor: separate QMP parser and dispatcher, Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 15/23] qmp: add new event "command-dropped", Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 16/23] monitor: send event when command queue full, Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 17/23] qapi: introduce new cmd option "allow-oob", Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 18/23] qmp: support out-of-band (oob) execution, Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 19/23] qmp: isolate responses into io thread, Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 20/23] monitor: enable IO thread for (qmp & !mux) typed, Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 21/23] qmp: add command "x-oob-test",
Peter Xu <=
- [Qemu-devel] [PATCH v7 22/23] tests: qmp-test: verify command batching, Peter Xu, 2018/01/24
- [Qemu-devel] [PATCH v7 23/23] tests: qmp-test: add oob test, Peter Xu, 2018/01/24
- Re: [Qemu-devel] [PATCH v7 00/23] QMP: out-of-band (OOB) execution support, Peter Xu, 2018/01/24