static void consumer_thread(void *arg) {
test_thread_options *opt = arg;
grpc_event ev;
gpr_log(GPR_INFO, "consumer %d started", opt->id);
gpr_event_set(&opt->on_started, (void *)(gpr_intptr)1);
GPR_ASSERT(gpr_event_wait(opt->phase1, ten_seconds_time()));
gpr_log(GPR_INFO, "consumer %d phase 1", opt->id);
gpr_log(GPR_INFO, "consumer %d phase 1 done", opt->id);
gpr_event_set(&opt->on_phase1_done, (void *)(gpr_intptr)1);
GPR_ASSERT(gpr_event_wait(opt->phase2, ten_seconds_time()));
gpr_log(GPR_INFO, "consumer %d phase 2", opt->id);
for (;;) {
ev = grpc_completion_queue_next(opt->cc, ten_seconds_time(), NULL);
switch (ev.type) {
case GRPC_OP_COMPLETE:
GPR_ASSERT(ev.success);
opt->events_triggered++;
break;
case GRPC_QUEUE_SHUTDOWN:
gpr_log(GPR_INFO, "consumer %d phase 2 done", opt->id);
gpr_event_set(&opt->on_finished, (void *)(gpr_intptr)1);
return;
case GRPC_QUEUE_TIMEOUT:
gpr_log(GPR_ERROR, "Invalid timeout received");
abort();
}
}
}
static void consumer_thread(void *arg) {
test_thread_options *opt = arg;
grpc_event *ev;
gpr_log(GPR_INFO, "consumer %d started", opt->id);
gpr_event_set(&opt->on_started, (void *)(gpr_intptr) 1);
GPR_ASSERT(gpr_event_wait(opt->phase1, ten_seconds_time()));
gpr_log(GPR_INFO, "consumer %d phase 1", opt->id);
gpr_log(GPR_INFO, "consumer %d phase 1 done", opt->id);
gpr_event_set(&opt->on_phase1_done, (void *)(gpr_intptr) 1);
GPR_ASSERT(gpr_event_wait(opt->phase2, ten_seconds_time()));
gpr_log(GPR_INFO, "consumer %d phase 2", opt->id);
for (;;) {
ev = grpc_completion_queue_next(opt->cc, ten_seconds_time());
GPR_ASSERT(ev);
switch (ev->type) {
case GRPC_WRITE_ACCEPTED:
GPR_ASSERT(ev->data.write_accepted == GRPC_OP_OK);
opt->events_triggered++;
grpc_event_finish(ev);
break;
case GRPC_QUEUE_SHUTDOWN:
gpr_log(GPR_INFO, "consumer %d phase 2 done", opt->id);
gpr_event_set(&opt->on_finished, (void *)(gpr_intptr) 1);
grpc_event_finish(ev);
return;
default:
gpr_log(GPR_ERROR, "Invalid event received: %d", ev->type);
abort();
}
}
}
static void producer_thread(void *arg) {
test_thread_options *opt = arg;
int i;
gpr_log(GPR_INFO, "producer %d started", opt->id);
gpr_event_set(&opt->on_started, (void *)(gpr_intptr)1);
GPR_ASSERT(gpr_event_wait(opt->phase1, ten_seconds_time()));
gpr_log(GPR_INFO, "producer %d phase 1", opt->id);
for (i = 0; i < TEST_THREAD_EVENTS; i++) {
grpc_cq_begin_op(opt->cc);
}
gpr_log(GPR_INFO, "producer %d phase 1 done", opt->id);
gpr_event_set(&opt->on_phase1_done, (void *)(gpr_intptr)1);
GPR_ASSERT(gpr_event_wait(opt->phase2, ten_seconds_time()));
gpr_log(GPR_INFO, "producer %d phase 2", opt->id);
for (i = 0; i < TEST_THREAD_EVENTS; i++) {
grpc_cq_end_op(opt->cc, (void *)(gpr_intptr)1, 1, free_completion, NULL,
gpr_malloc(sizeof(grpc_cq_completion)));
opt->events_triggered++;
}
gpr_log(GPR_INFO, "producer %d phase 2 done", opt->id);
gpr_event_set(&opt->on_finished, (void *)(gpr_intptr)1);
}
static void producer_thread(void *arg) {
test_thread_options *opt = arg;
int i;
gpr_log(GPR_INFO, "producer %d started", opt->id);
gpr_event_set(&opt->on_started, (void *)(gpr_intptr) 1);
GPR_ASSERT(gpr_event_wait(opt->phase1, ten_seconds_time()));
gpr_log(GPR_INFO, "producer %d phase 1", opt->id);
for (i = 0; i < TEST_THREAD_EVENTS; i++) {
grpc_cq_begin_op(opt->cc, NULL, GRPC_WRITE_ACCEPTED);
}
gpr_log(GPR_INFO, "producer %d phase 1 done", opt->id);
gpr_event_set(&opt->on_phase1_done, (void *)(gpr_intptr) 1);
GPR_ASSERT(gpr_event_wait(opt->phase2, ten_seconds_time()));
gpr_log(GPR_INFO, "producer %d phase 2", opt->id);
for (i = 0; i < TEST_THREAD_EVENTS; i++) {
grpc_cq_end_write_accepted(opt->cc, (void *)(gpr_intptr) 1, NULL, NULL,
NULL, GRPC_OP_OK);
opt->events_triggered++;
}
gpr_log(GPR_INFO, "producer %d phase 2 done", opt->id);
gpr_event_set(&opt->on_finished, (void *)(gpr_intptr) 1);
}
static void test_threading(int producers, int consumers) {
test_thread_options *options =
gpr_malloc((producers + consumers) * sizeof(test_thread_options));
gpr_event phase1 = GPR_EVENT_INIT;
gpr_event phase2 = GPR_EVENT_INIT;
grpc_completion_queue *cc = grpc_completion_queue_create(NULL);
int i;
int total_consumed = 0;
static int optid = 101;
gpr_log(GPR_INFO, "%s: %d producers, %d consumers", "test_threading",
producers, consumers);
/* start all threads: they will wait for phase1 */
for (i = 0; i < producers + consumers; i++) {
gpr_thd_id id;
gpr_event_init(&options[i].on_started);
gpr_event_init(&options[i].on_phase1_done);
gpr_event_init(&options[i].on_finished);
options[i].phase1 = &phase1;
options[i].phase2 = &phase2;
options[i].events_triggered = 0;
options[i].cc = cc;
options[i].id = optid++;
GPR_ASSERT(gpr_thd_new(&id,
i < producers ? producer_thread : consumer_thread,
options + i, NULL));
gpr_event_wait(&options[i].on_started, ten_seconds_time());
}
/* start phase1: producers will pre-declare all operations they will
complete */
gpr_log(GPR_INFO, "start phase 1");
gpr_event_set(&phase1, (void *)(gpr_intptr)1);
gpr_log(GPR_INFO, "wait phase 1");
for (i = 0; i < producers + consumers; i++) {
GPR_ASSERT(gpr_event_wait(&options[i].on_phase1_done, ten_seconds_time()));
}
gpr_log(GPR_INFO, "done phase 1");
/* start phase2: operations will complete, and consumers will consume them */
gpr_log(GPR_INFO, "start phase 2");
gpr_event_set(&phase2, (void *)(gpr_intptr)1);
/* in parallel, we shutdown the completion channel - all events should still
be consumed */
grpc_completion_queue_shutdown(cc);
/* join all threads */
gpr_log(GPR_INFO, "wait phase 2");
for (i = 0; i < producers + consumers; i++) {
GPR_ASSERT(gpr_event_wait(&options[i].on_finished, ten_seconds_time()));
}
gpr_log(GPR_INFO, "done phase 2");
/* destroy the completion channel */
grpc_completion_queue_destroy(cc);
/* verify that everything was produced and consumed */
for (i = 0; i < producers + consumers; i++) {
if (i < producers) {
GPR_ASSERT(options[i].events_triggered == TEST_THREAD_EVENTS);
} else {
total_consumed += options[i].events_triggered;
}
}
GPR_ASSERT(total_consumed == producers * TEST_THREAD_EVENTS);
gpr_free(options);
}