diff options
Diffstat (limited to 'iothread.c')
-rw-r--r-- | iothread.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/iothread.c b/iothread.c index bd70344811..7bedde87e9 100644 --- a/iothread.c +++ b/iothread.c @@ -98,6 +98,18 @@ static void iothread_complete(UserCreatable *obj, Error **errp) return; } + aio_context_set_poll_params(iothread->ctx, + iothread->poll_max_ns, + iothread->poll_grow, + iothread->poll_shrink, + &local_error); + if (local_error) { + error_propagate(errp, local_error); + aio_context_unref(iothread->ctx); + iothread->ctx = NULL; + return; + } + qemu_mutex_init(&iothread->init_done_lock); qemu_cond_init(&iothread->init_done_cond); @@ -120,10 +132,82 @@ static void iothread_complete(UserCreatable *obj, Error **errp) qemu_mutex_unlock(&iothread->init_done_lock); } +typedef struct { + const char *name; + ptrdiff_t offset; /* field's byte offset in IOThread struct */ +} PollParamInfo; + +static PollParamInfo poll_max_ns_info = { + "poll-max-ns", offsetof(IOThread, poll_max_ns), +}; +static PollParamInfo poll_grow_info = { + "poll-grow", offsetof(IOThread, poll_grow), +}; +static PollParamInfo poll_shrink_info = { + "poll-shrink", offsetof(IOThread, poll_shrink), +}; + +static void iothread_get_poll_param(Object *obj, Visitor *v, + const char *name, void *opaque, Error **errp) +{ + IOThread *iothread = IOTHREAD(obj); + PollParamInfo *info = opaque; + int64_t *field = (void *)iothread + info->offset; + + visit_type_int64(v, name, field, errp); +} + +static void iothread_set_poll_param(Object *obj, Visitor *v, + const char *name, void *opaque, Error **errp) +{ + IOThread *iothread = IOTHREAD(obj); + PollParamInfo *info = opaque; + int64_t *field = (void *)iothread + info->offset; + Error *local_err = NULL; + int64_t value; + + visit_type_int64(v, name, &value, &local_err); + if (local_err) { + goto out; + } + + if (value < 0) { + error_setg(&local_err, "%s value must be in range [0, %"PRId64"]", + info->name, INT64_MAX); + goto out; + } + + *field = value; + + if (iothread->ctx) { + aio_context_set_poll_params(iothread->ctx, + iothread->poll_max_ns, + iothread->poll_grow, + iothread->poll_shrink, + &local_err); + } + +out: + error_propagate(errp, local_err); +} + static void iothread_class_init(ObjectClass *klass, void *class_data) { UserCreatableClass *ucc = USER_CREATABLE_CLASS(klass); ucc->complete = iothread_complete; + + object_class_property_add(klass, "poll-max-ns", "int", + iothread_get_poll_param, + iothread_set_poll_param, + NULL, &poll_max_ns_info, &error_abort); + object_class_property_add(klass, "poll-grow", "int", + iothread_get_poll_param, + iothread_set_poll_param, + NULL, &poll_grow_info, &error_abort); + object_class_property_add(klass, "poll-shrink", "int", + iothread_get_poll_param, + iothread_set_poll_param, + NULL, &poll_shrink_info, &error_abort); } static const TypeInfo iothread_info = { |