On Tue, 12/19 16:45, Peter Xu wrote: > This command is only used to test OOB functionality. It should not be > used for any other purposes. > > Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com> > Signed-off-by: Peter Xu <pet...@redhat.com> > --- > qapi-schema.json | 18 ++++++++++++++++++ > qmp.c | 16 ++++++++++++++++ > 2 files changed, 34 insertions(+) > > diff --git a/qapi-schema.json b/qapi-schema.json > index 447ab25572..a63cd42cdd 100644 > --- a/qapi-schema.json > +++ b/qapi-schema.json > @@ -3259,3 +3259,21 @@ > ## > { '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 e8c303116a..ca2968aad2 100644 > --- a/qmp.c > +++ b/qmp.c > @@ -722,3 +722,19 @@ 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 >
Reviewed-by: Fam Zheng <f...@redhat.com>