QemuThread thread;
AioContext *ctx;
+ QemuMutex init_done_lock;
+ QemuCond init_done_cond; /* is thread initialization done? */
bool stopping;
+ int thread_id;
};
#define IOTHREAD_GET_CLASS(obj) \
{
IOThread *iothread = opaque;
+ qemu_mutex_lock(&iothread->init_done_lock);
+ iothread->thread_id = qemu_get_thread_id();
+ qemu_cond_signal(&iothread->init_done_cond);
+ qemu_mutex_unlock(&iothread->init_done_lock);
+
while (!iothread->stopping) {
aio_context_acquire(iothread->ctx);
while (!iothread->stopping && aio_poll(iothread->ctx, true)) {
iothread->stopping = true;
aio_notify(iothread->ctx);
qemu_thread_join(&iothread->thread);
+ qemu_cond_destroy(&iothread->init_done_cond);
+ qemu_mutex_destroy(&iothread->init_done_lock);
aio_context_unref(iothread->ctx);
}
iothread->stopping = false;
iothread->ctx = aio_context_new();
+ iothread->thread_id = -1;
+
+ qemu_mutex_init(&iothread->init_done_lock);
+ qemu_cond_init(&iothread->init_done_cond);
/* This assumes we are called from a thread with useful CPU affinity for us
* to inherit.
*/
qemu_thread_create(&iothread->thread, "iothread", iothread_run,
iothread, QEMU_THREAD_JOINABLE);
+
+ /* Wait for initialization to complete */
+ qemu_mutex_lock(&iothread->init_done_lock);
+ while (iothread->thread_id == -1) {
+ qemu_cond_wait(&iothread->init_done_cond,
+ &iothread->init_done_lock);
+ }
+ qemu_mutex_unlock(&iothread->init_done_lock);
}
static void iothread_class_init(ObjectClass *klass, void *class_data)