static void * thread_func(void * ptr)
{
pl061bbv_state * s = (pl061bbv_state *)ptr;
socklen_t client_addr_len;
if (s->sock < 0) {
printf("%s: invalid socket\n", __PRETTY_FUNCTION__);
qemu_thread_exit(NULL);
return NULL;
}
printf("%s: thread started\n", __PRETTY_FUNCTION__);
for (;;) {
memset(&s->client_addr, 0, sizeof(struct sockaddr_in));
client_addr_len = sizeof(struct sockaddr_in);
s->client_sock = accept(s->sock, (struct sockaddr *)&s->client_addr, &client_addr_len);
if (s->client_sock < 0) continue;
printf("%s: connection established\n", __PRETTY_FUNCTION__);
process_client(s);
close(s->client_sock);
s->client_sock = -1;
printf("%s: connection closed\n", __PRETTY_FUNCTION__);
}
qemu_thread_exit(NULL);
return NULL;
}
static void *comp_handler_thread(void *arg)
{
RdmaBackendDev *backend_dev = (RdmaBackendDev *)arg;
int rc;
struct ibv_cq *ev_cq;
void *ev_ctx;
int flags;
GPollFD pfds[1];
/* Change to non-blocking mode */
flags = fcntl(backend_dev->channel->fd, F_GETFL);
rc = fcntl(backend_dev->channel->fd, F_SETFL, flags | O_NONBLOCK);
if (rc < 0) {
rdma_error_report("Failed to change backend channel FD to non-blocking");
return NULL;
}
pfds[0].fd = backend_dev->channel->fd;
pfds[0].events = G_IO_IN | G_IO_HUP | G_IO_ERR;
backend_dev->comp_thread.is_running = true;
while (backend_dev->comp_thread.run) {
do {
rc = qemu_poll_ns(pfds, 1, THR_POLL_TO * (int64_t)SCALE_MS);
if (!rc) {
backend_dev->rdma_dev_res->stats.poll_cq_ppoll_to++;
}
} while (!rc && backend_dev->comp_thread.run);
if (backend_dev->comp_thread.run) {
rc = ibv_get_cq_event(backend_dev->channel, &ev_cq, &ev_ctx);
if (unlikely(rc)) {
rdma_error_report("ibv_get_cq_event fail, rc=%d, errno=%d", rc,
errno);
continue;
}
rc = ibv_req_notify_cq(ev_cq, 0);
if (unlikely(rc)) {
rdma_error_report("ibv_req_notify_cq fail, rc=%d, errno=%d", rc,
errno);
}
backend_dev->rdma_dev_res->stats.poll_cq_from_bk++;
rdma_poll_cq(backend_dev->rdma_dev_res, ev_cq);
ibv_ack_cq_events(ev_cq, 1);
}
}
backend_dev->comp_thread.is_running = false;
qemu_thread_exit(0);
return NULL;
}
static unsigned __stdcall win32_start_routine(void *arg)
{
QemuThreadData *data = (QemuThreadData *) arg;
void *(*start_routine)(void *) = data->start_routine;
void *thread_arg = data->arg;
qemu_thread_data = data;
qemu_thread_exit(start_routine(thread_arg));
abort();
}
static unsigned __stdcall win32_start_routine(void *arg)
{
QemuThreadData *data = (QemuThreadData *) arg;
void *(*start_routine)(void *) = data->start_routine;
void *thread_arg = data->arg;
if (data->mode == QEMU_THREAD_DETACHED) {
g_free(data);
data = NULL;
}
qemu_thread_data = data;
qemu_thread_exit(start_routine(thread_arg));
abort();
}
static unsigned __stdcall win32_start_routine(void *arg)
{
struct QemuThreadData data = *(struct QemuThreadData *) arg;
QemuThread *thread = data.thread;
free(arg);
TlsSetValue(qemu_thread_tls_index, thread);
/*
* Use DuplicateHandle instead of assigning thread->thread in the
* creating thread to avoid races. It's simpler this way than with
* synchronization.
*/
DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
GetCurrentProcess(), &thread->thread,
0, FALSE, DUPLICATE_SAME_ACCESS);
qemu_thread_exit(data.start_routine(data.arg));
abort();
}
static void xseg_request_handler(void *state)
{
BDRVArchipelagoState *s = (BDRVArchipelagoState *) state;
void *psd = xseg_get_signal_desc(s->xseg, s->port);
qemu_mutex_lock(&s->request_mutex);
while (!s->stopping) {
struct xseg_request *req;
void *data;
xseg_prepare_wait(s->xseg, s->srcport);
req = xseg_receive(s->xseg, s->srcport, X_NONBLOCK);
if (req) {
AIORequestData *reqdata;
ArchipelagoSegmentedRequest *segreq;
xseg_get_req_data(s->xseg, req, (void **)&reqdata);
switch (reqdata->op) {
case ARCHIP_OP_READ:
data = xseg_get_data(s->xseg, req);
segreq = reqdata->segreq;
segreq->count += req->serviced;
qemu_iovec_from_buf(reqdata->aio_cb->qiov, reqdata->bufidx,
data,
req->serviced);
xseg_put_request(s->xseg, req, s->srcport);
if ((__sync_add_and_fetch(&segreq->ref, -1)) == 0) {
if (!segreq->failed) {
reqdata->aio_cb->ret = segreq->count;
archipelago_finish_aiocb(reqdata);
g_free(segreq);
} else {
g_free(segreq);
g_free(reqdata);
}
} else {
g_free(reqdata);
}
break;
case ARCHIP_OP_WRITE:
case ARCHIP_OP_FLUSH:
segreq = reqdata->segreq;
segreq->count += req->serviced;
xseg_put_request(s->xseg, req, s->srcport);
if ((__sync_add_and_fetch(&segreq->ref, -1)) == 0) {
if (!segreq->failed) {
reqdata->aio_cb->ret = segreq->count;
archipelago_finish_aiocb(reqdata);
g_free(segreq);
} else {
g_free(segreq);
g_free(reqdata);
}
} else {
g_free(reqdata);
}
break;
case ARCHIP_OP_VOLINFO:
s->is_signaled = true;
qemu_cond_signal(&s->archip_cond);
break;
}
} else {
xseg_wait_signal(s->xseg, psd, 100000UL);
}
xseg_cancel_wait(s->xseg, s->srcport);
}
s->th_is_signaled = true;
qemu_cond_signal(&s->request_cond);
qemu_mutex_unlock(&s->request_mutex);
qemu_thread_exit(NULL);
}
