int main(int argc, char **argv) {
grpc_event ev;
call_state *s;
char *addr_buf = NULL;
gpr_cmdline *cl;
int shutdown_started = 0;
int shutdown_finished = 0;
int secure = 0;
char *addr = NULL;
char *fake_argv[1];
gpr_timers_set_log_filename("latency_trace.fling_server.txt");
GPR_ASSERT(argc >= 1);
fake_argv[0] = argv[0];
grpc_test_init(1, fake_argv);
grpc_init();
srand((unsigned)clock());
cl = gpr_cmdline_create("fling server");
gpr_cmdline_add_string(cl, "bind", "Bind host:port", &addr);
gpr_cmdline_add_flag(cl, "secure", "Run with security?", &secure);
gpr_cmdline_parse(cl, argc, argv);
gpr_cmdline_destroy(cl);
if (addr == NULL) {
gpr_join_host_port(&addr_buf, "::", grpc_pick_unused_port_or_die());
addr = addr_buf;
}
gpr_log(GPR_INFO, "creating server on: %s", addr);
cq = grpc_completion_queue_create(NULL);
if (secure) {
grpc_ssl_pem_key_cert_pair pem_key_cert_pair = {test_server1_key,
test_server1_cert};
grpc_server_credentials *ssl_creds = grpc_ssl_server_credentials_create(
NULL, &pem_key_cert_pair, 1, 0, NULL);
server = grpc_server_create(NULL, NULL);
GPR_ASSERT(grpc_server_add_secure_http2_port(server, addr, ssl_creds));
grpc_server_credentials_release(ssl_creds);
} else {
server = grpc_server_create(NULL, NULL);
GPR_ASSERT(grpc_server_add_insecure_http2_port(server, addr));
}
grpc_server_register_completion_queue(server, cq, NULL);
grpc_server_start(server);
gpr_free(addr_buf);
addr = addr_buf = NULL;
grpc_call_details_init(&call_details);
request_call();
grpc_profiler_start("server.prof");
signal(SIGINT, sigint_handler);
while (!shutdown_finished) {
if (got_sigint && !shutdown_started) {
gpr_log(GPR_INFO, "Shutting down due to SIGINT");
grpc_server_shutdown_and_notify(server, cq, tag(1000));
GPR_ASSERT(grpc_completion_queue_pluck(
cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
.type == GRPC_OP_COMPLETE);
grpc_completion_queue_shutdown(cq);
shutdown_started = 1;
}
ev = grpc_completion_queue_next(
cq, gpr_time_add(gpr_now(GPR_CLOCK_REALTIME),
gpr_time_from_micros(1000000, GPR_TIMESPAN)),
NULL);
s = ev.tag;
switch (ev.type) {
case GRPC_OP_COMPLETE:
switch ((gpr_intptr)s) {
case FLING_SERVER_NEW_REQUEST:
if (call != NULL) {
if (0 ==
strcmp(call_details.method, "/Reflector/reflectStream")) {
/* Received streaming call. Send metadata here. */
start_read_op(FLING_SERVER_READ_FOR_STREAMING);
send_initial_metadata();
} else {
/* Received unary call. Can do all ops in one batch. */
start_read_op(FLING_SERVER_READ_FOR_UNARY);
}
} else {
GPR_ASSERT(shutdown_started);
}
/* request_call();
*/
break;
case FLING_SERVER_READ_FOR_STREAMING:
if (payload_buffer != NULL) {
/* Received payload from client. */
start_write_op();
} else {
/* Received end of stream from client. */
start_send_status();
}
break;
case FLING_SERVER_WRITE_FOR_STREAMING:
/* Write completed at server */
grpc_byte_buffer_destroy(payload_buffer);
payload_buffer = NULL;
start_read_op(FLING_SERVER_READ_FOR_STREAMING);
break;
case FLING_SERVER_SEND_INIT_METADATA_FOR_STREAMING:
/* Metadata send completed at server */
break;
case FLING_SERVER_SEND_STATUS_FOR_STREAMING:
/* Send status and close completed at server */
grpc_call_destroy(call);
if (!shutdown_started) request_call();
break;
case FLING_SERVER_READ_FOR_UNARY:
/* Finished payload read for unary. Start all reamaining
* unary ops in a batch.
*/
handle_unary_method();
break;
case FLING_SERVER_BATCH_OPS_FOR_UNARY:
/* Finished unary call. */
grpc_byte_buffer_destroy(payload_buffer);
payload_buffer = NULL;
grpc_call_destroy(call);
if (!shutdown_started) request_call();
break;
}
break;
case GRPC_QUEUE_SHUTDOWN:
GPR_ASSERT(shutdown_started);
shutdown_finished = 1;
break;
case GRPC_QUEUE_TIMEOUT:
break;
}
}
grpc_profiler_stop();
grpc_call_details_destroy(&call_details);
grpc_server_destroy(server);
grpc_completion_queue_destroy(cq);
grpc_shutdown();
return 0;
}
static void drain_cq(grpc_completion_queue *cq) {
grpc_event ev;
do {
ev = grpc_completion_queue_next(cq, n_millis_time(5000), NULL);
} while (ev.type != GRPC_QUEUE_SHUTDOWN);
}
static void drain_cq(grpc_completion_queue *cq) {
grpc_event ev;
do {
ev = grpc_completion_queue_next(cq, five_seconds_time());
} while (ev.type != GRPC_QUEUE_SHUTDOWN);
}
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
grpc_test_only_set_metadata_hash_seed(0);
struct grpc_memory_counters counters;
if (squelch) gpr_set_log_function(dont_log);
if (leak_check) grpc_memory_counters_init();
grpc_init();
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_resource_quota *resource_quota =
grpc_resource_quota_create("server_fuzzer");
grpc_endpoint *mock_endpoint =
grpc_mock_endpoint_create(discard_write, resource_quota);
grpc_resource_quota_internal_unref(&exec_ctx, resource_quota);
grpc_mock_endpoint_put_read(
&exec_ctx, mock_endpoint,
gpr_slice_from_copied_buffer((const char *)data, size));
grpc_server *server = grpc_server_create(NULL, NULL);
grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
grpc_server_register_completion_queue(server, cq, NULL);
// TODO(ctiller): add registered methods (one for POST, one for PUT)
// void *registered_method =
// grpc_server_register_method(server, "/reg", NULL, 0);
grpc_server_start(server);
grpc_transport *transport =
grpc_create_chttp2_transport(&exec_ctx, NULL, mock_endpoint, 0);
grpc_server_setup_transport(&exec_ctx, server, transport, NULL, NULL);
grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL);
grpc_call *call1 = NULL;
grpc_call_details call_details1;
grpc_metadata_array request_metadata1;
grpc_call_details_init(&call_details1);
grpc_metadata_array_init(&request_metadata1);
int requested_calls = 0;
grpc_server_request_call(server, &call1, &call_details1, &request_metadata1,
cq, cq, tag(1));
requested_calls++;
grpc_event ev;
while (1) {
grpc_exec_ctx_flush(&exec_ctx);
ev = grpc_completion_queue_next(cq, gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
switch (ev.type) {
case GRPC_QUEUE_TIMEOUT:
goto done;
case GRPC_QUEUE_SHUTDOWN:
break;
case GRPC_OP_COMPLETE:
switch (detag(ev.tag)) {
case 1:
requested_calls--;
// TODO(ctiller): keep reading that call!
break;
}
}
}
done:
if (call1 != NULL) grpc_call_destroy(call1);
grpc_call_details_destroy(&call_details1);
grpc_metadata_array_destroy(&request_metadata1);
grpc_server_shutdown_and_notify(server, cq, tag(0xdead));
grpc_server_cancel_all_calls(server);
for (int i = 0; i <= requested_calls; i++) {
ev = grpc_completion_queue_next(cq, gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
}
grpc_completion_queue_shutdown(cq);
for (int i = 0; i <= requested_calls; i++) {
ev = grpc_completion_queue_next(cq, gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
GPR_ASSERT(ev.type == GRPC_QUEUE_SHUTDOWN);
}
grpc_server_destroy(server);
grpc_completion_queue_destroy(cq);
grpc_shutdown();
if (leak_check) {
counters = grpc_memory_counters_snapshot();
grpc_memory_counters_destroy();
GPR_ASSERT(counters.total_size_relative == 0);
}
return 0;
}
grpc_event cq_verifier_next_event(cq_verifier *v, int timeout_seconds) {
const gpr_timespec deadline =
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(timeout_seconds);
return grpc_completion_queue_next(v->cq, deadline, NULL);
}
int main(int argc, char **argv) {
grpc_channel *chan;
grpc_call *call;
gpr_timespec deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(2);
grpc_completion_queue *cq;
cq_verifier *cqv;
grpc_op ops[6];
grpc_op *op;
grpc_metadata_array trailing_metadata_recv;
grpc_status_code status;
char *details = NULL;
size_t details_capacity = 0;
grpc_test_init(argc, argv);
grpc_init();
grpc_metadata_array_init(&trailing_metadata_recv);
cq = grpc_completion_queue_create(NULL);
cqv = cq_verifier_create(cq);
/* create a call, channel to a non existant server */
chan = grpc_insecure_channel_create("nonexistant:54321", NULL, NULL);
call = grpc_channel_create_call(chan, NULL, GRPC_PROPAGATE_DEFAULTS, cq,
"/Foo", "nonexistant", deadline, NULL);
memset(ops, 0, sizeof(ops));
op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
op->flags = 0;
op->reserved = NULL;
op++;
op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
op->data.recv_status_on_client.status = &status;
op->data.recv_status_on_client.status_details = &details;
op->data.recv_status_on_client.status_details_capacity = &details_capacity;
op->flags = 0;
op->reserved = NULL;
op++;
GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(
call, ops, (size_t)(op - ops), tag(1), NULL));
/* verify that all tags get completed */
cq_expect_completion(cqv, tag(1), 1);
cq_verify(cqv);
GPR_ASSERT(status == GRPC_STATUS_DEADLINE_EXCEEDED);
grpc_completion_queue_shutdown(cq);
while (
grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME), NULL)
.type != GRPC_QUEUE_SHUTDOWN)
;
grpc_completion_queue_destroy(cq);
grpc_call_destroy(call);
grpc_channel_destroy(chan);
cq_verifier_destroy(cqv);
gpr_free(details);
grpc_metadata_array_destroy(&trailing_metadata_recv);
grpc_shutdown();
return 0;
}
/** Returns connection sequence (server indices), which must be freed */
static request_sequences perform_request(servers_fixture *f,
grpc_channel *client,
request_data *rdata,
const test_spec *spec) {
grpc_call *c;
int s_idx;
int *s_valid;
grpc_op ops[6];
grpc_op *op;
int was_cancelled;
size_t i, iter_num;
grpc_event ev;
int read_tag;
int completed_client;
const request_sequences sequences = request_sequences_create(spec->num_iters);
s_valid = gpr_malloc(sizeof(int) * f->num_servers);
for (iter_num = 0; iter_num < spec->num_iters; iter_num++) {
cq_verifier *cqv = cq_verifier_create(f->cq);
was_cancelled = 2;
for (i = 0; i < f->num_servers; i++) {
if (spec->kill_at[iter_num][i] != 0) {
kill_server(f, i);
} else if (spec->revive_at[iter_num][i] != 0) {
/* killing takes precedence */
revive_server(f, rdata, i);
}
}
sequences.connections[iter_num] = -1;
grpc_metadata_array_init(&rdata->initial_metadata_recv);
grpc_metadata_array_init(&rdata->trailing_metadata_recv);
for (i = 0; i < f->num_servers; i++) {
grpc_call_details_init(&rdata->call_details[i]);
}
memset(s_valid, 0, f->num_servers * sizeof(int));
grpc_slice host = grpc_slice_from_static_string("foo.test.google.fr");
c = grpc_channel_create_call(client, NULL, GRPC_PROPAGATE_DEFAULTS, f->cq,
grpc_slice_from_static_string("/foo"), &host,
gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
GPR_ASSERT(c);
completed_client = 0;
memset(ops, 0, sizeof(ops));
op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
op->flags = 0;
op->reserved = NULL;
op++;
op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
op->flags = 0;
op->reserved = NULL;
op++;
op->op = GRPC_OP_RECV_INITIAL_METADATA;
op->data.recv_initial_metadata.recv_initial_metadata =
&rdata->initial_metadata_recv;
op->flags = 0;
op->reserved = NULL;
op++;
op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
op->data.recv_status_on_client.trailing_metadata =
&rdata->trailing_metadata_recv;
op->data.recv_status_on_client.status = &rdata->status;
op->data.recv_status_on_client.status_details = &rdata->details;
op->flags = 0;
op->reserved = NULL;
op++;
GPR_ASSERT(GRPC_CALL_OK ==
grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL));
s_idx = -1;
while (
(ev = grpc_completion_queue_next(
f->cq, grpc_timeout_milliseconds_to_deadline(RETRY_TIMEOUT), NULL))
.type != GRPC_QUEUE_TIMEOUT) {
GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
read_tag = ((int)(intptr_t)ev.tag);
const grpc_connectivity_state conn_state =
grpc_channel_check_connectivity_state(client, 0);
sequences.connectivity_states[iter_num] = conn_state;
gpr_log(GPR_DEBUG, "EVENT: success:%d, type:%d, tag:%d iter:%" PRIuPTR,
ev.success, ev.type, read_tag, iter_num);
if (ev.success && read_tag >= 1000) {
GPR_ASSERT(s_idx == -1); /* only one server must reply */
/* only server notifications for non-shutdown events */
s_idx = read_tag - 1000;
s_valid[s_idx] = 1;
sequences.connections[iter_num] = s_idx;
break;
} else if (read_tag == 1) {
gpr_log(GPR_DEBUG, "client timed out");
GPR_ASSERT(ev.success);
completed_client = 1;
}
}
if (s_idx >= 0) {
memset(ops, 0, sizeof(ops));
op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
op->flags = 0;
op->reserved = NULL;
op++;
op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
op->data.send_status_from_server.trailing_metadata_count = 0;
op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED;
grpc_slice status_details = grpc_slice_from_static_string("xyz");
op->data.send_status_from_server.status_details = &status_details;
op->flags = 0;
op->reserved = NULL;
op++;
op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
op->data.recv_close_on_server.cancelled = &was_cancelled;
op->flags = 0;
op->reserved = NULL;
op++;
GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(f->server_calls[s_idx],
ops, (size_t)(op - ops),
tag(102), NULL));
CQ_EXPECT_COMPLETION(cqv, tag(102), 1);
if (!completed_client) {
CQ_EXPECT_COMPLETION(cqv, tag(1), 1);
}
cq_verify(cqv);
GPR_ASSERT(rdata->status == GRPC_STATUS_UNIMPLEMENTED);
GPR_ASSERT(0 == grpc_slice_str_cmp(rdata->details, "xyz"));
GPR_ASSERT(0 ==
grpc_slice_str_cmp(rdata->call_details[s_idx].method, "/foo"));
GPR_ASSERT(0 == grpc_slice_str_cmp(rdata->call_details[s_idx].host,
"foo.test.google.fr"));
GPR_ASSERT(was_cancelled == 1);
grpc_call_destroy(f->server_calls[s_idx]);
/* ask for the next request on this server */
GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(
f->servers[s_idx], &f->server_calls[s_idx],
&rdata->call_details[s_idx],
&f->request_metadata_recv[s_idx], f->cq,
f->cq, tag(1000 + (int)s_idx)));
} else { /* no response from server */
grpc_call_cancel(c, NULL);
if (!completed_client) {
CQ_EXPECT_COMPLETION(cqv, tag(1), 1);
cq_verify(cqv);
}
}
GPR_ASSERT(
grpc_completion_queue_next(
f->cq, grpc_timeout_milliseconds_to_deadline(RETRY_TIMEOUT), NULL)
.type == GRPC_QUEUE_TIMEOUT);
grpc_metadata_array_destroy(&rdata->initial_metadata_recv);
grpc_metadata_array_destroy(&rdata->trailing_metadata_recv);
cq_verifier_destroy(cqv);
grpc_call_destroy(c);
for (i = 0; i < f->num_servers; i++) {
grpc_call_details_destroy(&rdata->call_details[i]);
}
grpc_slice_unref(rdata->details);
}
gpr_free(s_valid);
return sequences;
}