grpc_end2end_http_proxy* grpc_end2end_http_proxy_create(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_end2end_http_proxy* proxy = gpr_malloc(sizeof(*proxy));
memset(proxy, 0, sizeof(*proxy));
// Construct proxy address.
const int proxy_port = grpc_pick_unused_port_or_die();
gpr_join_host_port(&proxy->proxy_name, "localhost", proxy_port);
gpr_log(GPR_INFO, "Proxy address: %s", proxy->proxy_name);
// Create TCP server.
proxy->channel_args = grpc_channel_args_copy(NULL);
grpc_error* error = grpc_tcp_server_create(
&exec_ctx, NULL, proxy->channel_args, &proxy->server);
GPR_ASSERT(error == GRPC_ERROR_NONE);
// Bind to port.
grpc_resolved_address resolved_addr;
struct sockaddr_in* addr = (struct sockaddr_in*)resolved_addr.addr;
memset(&resolved_addr, 0, sizeof(resolved_addr));
addr->sin_family = AF_INET;
grpc_sockaddr_set_port(&resolved_addr, proxy_port);
int port;
error = grpc_tcp_server_add_port(proxy->server, &resolved_addr, &port);
GPR_ASSERT(error == GRPC_ERROR_NONE);
GPR_ASSERT(port == proxy_port);
// Start server.
proxy->pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(proxy->pollset, &proxy->mu);
grpc_tcp_server_start(&exec_ctx, proxy->server, &proxy->pollset, 1, on_accept,
proxy);
grpc_exec_ctx_finish(&exec_ctx);
// Start proxy thread.
gpr_thd_options opt = gpr_thd_options_default();
gpr_thd_options_set_joinable(&opt);
GPR_ASSERT(gpr_thd_new(&proxy->thd, thread_main, proxy, &opt));
return proxy;
}
static void test_mt_sized(int size, int nth) {
gpr_stack_lockfree *stack;
struct test_arg args[MAX_THREADS];
gpr_thd_id thds[MAX_THREADS];
int sum;
int i;
gpr_thd_options options = gpr_thd_options_default();
stack = gpr_stack_lockfree_create(size);
for (i = 0; i < nth; i++) {
args[i].stack = stack;
args[i].stack_size = size;
args[i].nthreads = nth;
args[i].rank = i;
args[i].sum = 0;
}
gpr_thd_options_set_joinable(&options);
for (i = 0; i < nth; i++) {
GPR_ASSERT(gpr_thd_new(&thds[i], test_mt_body, &args[i], &options));
}
sum = 0;
for (i = 0; i < nth; i++) {
gpr_thd_join(thds[i]);
sum = sum + args[i].sum;
}
GPR_ASSERT((unsigned)sum == ((unsigned)size * (size - 1)) / 2);
gpr_stack_lockfree_destroy(stack);
}
grpc_end2end_proxy *grpc_end2end_proxy_create(
const grpc_end2end_proxy_def *def) {
gpr_thd_options opt = gpr_thd_options_default();
int proxy_port = grpc_pick_unused_port_or_die();
int server_port = grpc_pick_unused_port_or_die();
grpc_end2end_proxy *proxy = gpr_malloc(sizeof(*proxy));
memset(proxy, 0, sizeof(*proxy));
gpr_join_host_port(&proxy->proxy_port, "localhost", proxy_port);
gpr_join_host_port(&proxy->server_port, "localhost", server_port);
gpr_log(GPR_DEBUG, "PROXY ADDR:%s BACKEND:%s", proxy->proxy_port,
proxy->server_port);
proxy->cq = grpc_completion_queue_create(NULL);
proxy->server = def->create_server(proxy->proxy_port);
proxy->client = def->create_client(proxy->server_port);
grpc_server_register_completion_queue(proxy->server, proxy->cq, NULL);
grpc_server_start(proxy->server);
gpr_thd_options_set_joinable(&opt);
GPR_ASSERT(gpr_thd_new(&proxy->thd, thread_main, proxy, &opt));
request_call(proxy);
return proxy;
}
/* Test that we can create a number of threads and wait for them. */
static void test(void) {
int i;
gpr_thd_id thd;
gpr_thd_id thds[1000];
struct test t;
int n = 1000;
gpr_thd_options options = gpr_thd_options_default();
gpr_mu_init(&t.mu);
gpr_cv_init(&t.done_cv);
t.n = n;
t.is_done = 0;
for (i = 0; i != n; i++) {
GPR_ASSERT(gpr_thd_new(&thd, &thd_body, &t, NULL));
}
gpr_mu_lock(&t.mu);
while (!t.is_done) {
gpr_cv_wait(&t.done_cv, &t.mu, gpr_inf_future(GPR_CLOCK_REALTIME));
}
gpr_mu_unlock(&t.mu);
GPR_ASSERT(t.n == 0);
gpr_thd_options_set_joinable(&options);
for (i = 0; i < n; i++) {
GPR_ASSERT(gpr_thd_new(&thds[i], &thd_body_joinable, NULL, &options));
}
for (i = 0; i < n; i++) {
gpr_thd_join(thds[i]);
}
}
/* Test thread options work as expected */
static void test_options(void) {
gpr_thd_options options = gpr_thd_options_default();
GPR_ASSERT(!gpr_thd_options_is_joinable(&options));
GPR_ASSERT(gpr_thd_options_is_detached(&options));
gpr_thd_options_set_joinable(&options);
GPR_ASSERT(gpr_thd_options_is_joinable(&options));
GPR_ASSERT(!gpr_thd_options_is_detached(&options));
gpr_thd_options_set_detached(&options);
GPR_ASSERT(!gpr_thd_options_is_joinable(&options));
GPR_ASSERT(gpr_thd_options_is_detached(&options));
}
static void test_mt_multipop(void) {
gpr_log(GPR_DEBUG, "test_mt_multipop");
gpr_event start;
gpr_event_init(&start);
gpr_thd_id thds[100];
gpr_thd_id pull_thds[100];
thd_args ta[GPR_ARRAY_SIZE(thds)];
gpr_mpscq q;
gpr_mpscq_init(&q);
for (size_t i = 0; i < GPR_ARRAY_SIZE(thds); i++) {
gpr_thd_options options = gpr_thd_options_default();
gpr_thd_options_set_joinable(&options);
ta[i].ctr = 0;
ta[i].q = &q;
ta[i].start = &start;
GPR_ASSERT(gpr_thd_new(&thds[i], test_thread, &ta[i], &options));
}
pull_args pa;
pa.ta = ta;
pa.num_thds = GPR_ARRAY_SIZE(thds);
pa.spins = 0;
pa.num_done = 0;
pa.q = &q;
pa.start = &start;
gpr_mu_init(&pa.mu);
for (size_t i = 0; i < GPR_ARRAY_SIZE(pull_thds); i++) {
gpr_thd_options options = gpr_thd_options_default();
gpr_thd_options_set_joinable(&options);
GPR_ASSERT(gpr_thd_new(&pull_thds[i], pull_thread, &pa, &options));
}
gpr_event_set(&start, (void *)1);
for (size_t i = 0; i < GPR_ARRAY_SIZE(pull_thds); i++) {
gpr_thd_join(pull_thds[i]);
}
gpr_log(GPR_DEBUG, "spins: %" PRIdPTR, pa.spins);
for (size_t i = 0; i < GPR_ARRAY_SIZE(thds); i++) {
gpr_thd_join(thds[i]);
}
gpr_mpscq_destroy(&q);
}
static void test_too_many_plucks(void) {
grpc_event ev;
grpc_completion_queue *cc;
void *tags[GRPC_MAX_COMPLETION_QUEUE_PLUCKERS];
grpc_cq_completion completions[GPR_ARRAY_SIZE(tags)];
gpr_thd_id thread_ids[GPR_ARRAY_SIZE(tags)];
struct thread_state thread_states[GPR_ARRAY_SIZE(tags)];
gpr_thd_options thread_options = gpr_thd_options_default();
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
unsigned i, j;
LOG_TEST("test_too_many_plucks");
cc = grpc_completion_queue_create(NULL);
gpr_thd_options_set_joinable(&thread_options);
for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
tags[i] = create_test_tag();
for (j = 0; j < i; j++) {
GPR_ASSERT(tags[i] != tags[j]);
}
thread_states[i].cc = cc;
thread_states[i].tag = tags[i];
gpr_thd_new(thread_ids + i, pluck_one, thread_states + i, &thread_options);
}
/* wait until all other threads are plucking */
gpr_sleep_until(GRPC_TIMEOUT_MILLIS_TO_DEADLINE(1000));
ev = grpc_completion_queue_pluck(cc, create_test_tag(),
gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
GPR_ASSERT(ev.type == GRPC_QUEUE_TIMEOUT);
for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
grpc_cq_begin_op(cc, tags[i]);
grpc_cq_end_op(&exec_ctx, cc, tags[i], GRPC_ERROR_NONE,
do_nothing_end_completion, NULL, &completions[i]);
}
for (i = 0; i < GPR_ARRAY_SIZE(tags); i++) {
gpr_thd_join(thread_ids[i]);
}
shutdown_and_destroy(cc);
grpc_exec_ctx_finish(&exec_ctx);
}
static void test_threading(void) {
threading_shared shared;
shared.pollset = gpr_zalloc(grpc_pollset_size());
grpc_pollset_init(shared.pollset, &shared.mu);
gpr_thd_id thds[10];
for (size_t i = 0; i < GPR_ARRAY_SIZE(thds); i++) {
gpr_thd_options opt = gpr_thd_options_default();
gpr_thd_options_set_joinable(&opt);
gpr_thd_new(&thds[i], test_threading_loop, &shared, &opt);
}
grpc_wakeup_fd fd;
GPR_ASSERT(GRPC_LOG_IF_ERROR("wakeup_fd_init", grpc_wakeup_fd_init(&fd)));
shared.wakeup_fd = &fd;
shared.wakeup_desc = grpc_fd_create(fd.read_fd, "wakeup");
shared.wakeups = 0;
{
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_pollset_add_fd(&exec_ctx, shared.pollset, shared.wakeup_desc);
grpc_fd_notify_on_read(
&exec_ctx, shared.wakeup_desc,
GRPC_CLOSURE_INIT(&shared.on_wakeup, test_threading_wakeup, &shared,
grpc_schedule_on_exec_ctx));
grpc_exec_ctx_finish(&exec_ctx);
}
GPR_ASSERT(GRPC_LOG_IF_ERROR("wakeup_first",
grpc_wakeup_fd_wakeup(shared.wakeup_fd)));
for (size_t i = 0; i < GPR_ARRAY_SIZE(thds); i++) {
gpr_thd_join(thds[i]);
}
fd.read_fd = 0;
grpc_wakeup_fd_destroy(&fd);
{
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_fd_shutdown(&exec_ctx, shared.wakeup_desc, GRPC_ERROR_CANCELLED);
grpc_fd_orphan(&exec_ctx, shared.wakeup_desc, NULL, NULL,
false /* already_closed */, "done");
grpc_pollset_shutdown(&exec_ctx, shared.pollset,
GRPC_CLOSURE_CREATE(destroy_pollset, shared.pollset,
grpc_schedule_on_exec_ctx));
grpc_exec_ctx_finish(&exec_ctx);
}
gpr_free(shared.pollset);
}
// This test tries to catch deadlock situations.
// With short timeouts on "watches" and long timeouts on cq next calls,
// so that a QUEUE_TIMEOUT likely means that something is stuck.
int run_concurrent_watches_with_short_timeouts_test() {
grpc_init();
gpr_thd_id threads[NUM_THREADS];
char *localhost = gpr_strdup("localhost:54321");
gpr_thd_options options = gpr_thd_options_default();
gpr_thd_options_set_joinable(&options);
for (size_t i = 0; i < NUM_THREADS; ++i) {
gpr_thd_new(&threads[i], watches_with_short_timeouts, localhost, &options);
}
for (size_t i = 0; i < NUM_THREADS; ++i) {
gpr_thd_join(threads[i]);
}
gpr_free(localhost);
grpc_shutdown();
return 0;
}
static void test_mt(void) {
gpr_log(GPR_DEBUG, "test_mt");
gpr_event start;
gpr_event_init(&start);
gpr_thd_id thds[100];
thd_args ta[GPR_ARRAY_SIZE(thds)];
gpr_mpscq q;
gpr_mpscq_init(&q);
for (size_t i = 0; i < GPR_ARRAY_SIZE(thds); i++) {
gpr_thd_options options = gpr_thd_options_default();
gpr_thd_options_set_joinable(&options);
ta[i].ctr = 0;
ta[i].q = &q;
ta[i].start = &start;
GPR_ASSERT(gpr_thd_new(&thds[i], test_thread, &ta[i], &options));
}
size_t num_done = 0;
size_t spins = 0;
gpr_event_set(&start, (void *)1);
while (num_done != GPR_ARRAY_SIZE(thds)) {
gpr_mpscq_node *n;
while ((n = gpr_mpscq_pop(&q)) == NULL) {
spins++;
}
test_node *tn = (test_node *)n;
GPR_ASSERT(*tn->ctr == tn->i - 1);
*tn->ctr = tn->i;
if (tn->i == THREAD_ITERATIONS) num_done++;
gpr_free(tn);
}
gpr_log(GPR_DEBUG, "spins: %" PRIdPTR, spins);
for (size_t i = 0; i < GPR_ARRAY_SIZE(thds); i++) {
gpr_thd_join(thds[i]);
}
gpr_mpscq_destroy(&q);
}
// This test launches a gRPC server on a separate thread and then establishes a
// TLS handshake via a minimal TLS client. The TLS client has configurable (via
// alpn_list) ALPN settings and can probe at the supported ALPN preferences
// using this (via alpn_expected).
static bool server_ssl_test(const char *alpn_list[], unsigned int alpn_list_len,
const char *alpn_expected) {
bool success = true;
grpc_init();
int port = grpc_pick_unused_port_or_die();
gpr_event_init(&client_handshake_complete);
// Launch the gRPC server thread.
gpr_thd_options thdopt = gpr_thd_options_default();
gpr_thd_id thdid;
gpr_thd_options_set_joinable(&thdopt);
GPR_ASSERT(gpr_thd_new(&thdid, server_thread, &port, &thdopt));
SSL_load_error_strings();
OpenSSL_add_ssl_algorithms();
const SSL_METHOD *method = TLSv1_2_client_method();
SSL_CTX *ctx = SSL_CTX_new(method);
if (!ctx) {
perror("Unable to create SSL context");
ERR_print_errors_fp(stderr);
abort();
}
// Load key pair.
if (SSL_CTX_use_certificate_file(ctx, SSL_CERT_PATH, SSL_FILETYPE_PEM) < 0) {
ERR_print_errors_fp(stderr);
abort();
}
if (SSL_CTX_use_PrivateKey_file(ctx, SSL_KEY_PATH, SSL_FILETYPE_PEM) < 0) {
ERR_print_errors_fp(stderr);
abort();
}
// Set the cipher list to match the one expressed in
// src/core/lib/tsi/ssl_transport_security.c.
const char *cipher_list =
"ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-"
"SHA384:ECDHE-RSA-AES256-GCM-SHA384";
if (!SSL_CTX_set_cipher_list(ctx, cipher_list)) {
ERR_print_errors_fp(stderr);
gpr_log(GPR_ERROR, "Couldn't set server cipher list.");
abort();
}
// Configure ALPN list the client will send to the server. This must match the
// wire format, see documentation for SSL_CTX_set_alpn_protos.
unsigned int alpn_protos_len = alpn_list_len;
for (unsigned int i = 0; i < alpn_list_len; ++i) {
alpn_protos_len += (unsigned int)strlen(alpn_list[i]);
}
unsigned char *alpn_protos = gpr_malloc(alpn_protos_len);
unsigned char *p = alpn_protos;
for (unsigned int i = 0; i < alpn_list_len; ++i) {
const uint8_t len = (uint8_t)strlen(alpn_list[i]);
*p++ = len;
memcpy(p, alpn_list[i], len);
p += len;
}
GPR_ASSERT(SSL_CTX_set_alpn_protos(ctx, alpn_protos, alpn_protos_len) == 0);
// Try and connect to server. We allow a bounded number of retries as we might
// be racing with the server setup on its separate thread.
int retries = 10;
int sock = -1;
while (sock == -1 && retries-- > 0) {
sock = create_socket(port);
if (sock < 0) {
sleep(1);
}
}
GPR_ASSERT(sock > 0);
gpr_log(GPR_INFO, "Connected to server on port %d", port);
// Establish a SSL* and connect at SSL layer.
SSL *ssl = SSL_new(ctx);
GPR_ASSERT(ssl);
SSL_set_fd(ssl, sock);
if (SSL_connect(ssl) <= 0) {
ERR_print_errors_fp(stderr);
gpr_log(GPR_ERROR, "Handshake failed.");
success = false;
} else {
gpr_log(GPR_INFO, "Handshake successful.");
// Validate ALPN preferred by server matches alpn_expected.
const unsigned char *alpn_selected;
unsigned int alpn_selected_len;
SSL_get0_alpn_selected(ssl, &alpn_selected, &alpn_selected_len);
if (strlen(alpn_expected) != alpn_selected_len ||
strncmp((const char *)alpn_selected, alpn_expected,
alpn_selected_len) != 0) {
gpr_log(GPR_ERROR, "Unexpected ALPN protocol preference");
success = false;
}
}
gpr_event_set(&client_handshake_complete, &client_handshake_complete);
SSL_free(ssl);
gpr_free(alpn_protos);
SSL_CTX_free(ctx);
EVP_cleanup();
close(sock);
gpr_thd_join(thdid);
grpc_shutdown();
return success;
}
void grpc_executor_init() {
memset(&g_executor, 0, sizeof(grpc_executor));
gpr_mu_init(&g_executor.mu);
g_executor.options = gpr_thd_options_default();
gpr_thd_options_set_joinable(&g_executor.options);
}
int run_concurrent_connectivity_test() {
struct server_thread_args args;
memset(&args, 0, sizeof(args));
grpc_init();
gpr_thd_id threads[NUM_THREADS];
gpr_thd_id server;
char *localhost = gpr_strdup("localhost:54321");
gpr_thd_options options = gpr_thd_options_default();
gpr_thd_options_set_joinable(&options);
/* First round, no server */
gpr_log(GPR_DEBUG, "Wave 1");
for (size_t i = 0; i < NUM_THREADS; ++i) {
gpr_thd_new(&threads[i], create_loop_destroy, localhost, &options);
}
for (size_t i = 0; i < NUM_THREADS; ++i) {
gpr_thd_join(threads[i]);
}
gpr_free(localhost);
/* Second round, actual grpc server */
gpr_log(GPR_DEBUG, "Wave 2");
int port = grpc_pick_unused_port_or_die();
gpr_asprintf(&args.addr, "localhost:%d", port);
args.server = grpc_server_create(NULL, NULL);
grpc_server_add_insecure_http2_port(args.server, args.addr);
args.cq = grpc_completion_queue_create_for_next(NULL);
grpc_server_register_completion_queue(args.server, args.cq, NULL);
grpc_server_start(args.server);
gpr_thd_new(&server, server_thread, &args, &options);
for (size_t i = 0; i < NUM_THREADS; ++i) {
gpr_thd_new(&threads[i], create_loop_destroy, args.addr, &options);
}
for (size_t i = 0; i < NUM_THREADS; ++i) {
gpr_thd_join(threads[i]);
}
grpc_server_shutdown_and_notify(args.server, args.cq, tag(0xd1e));
gpr_thd_join(server);
grpc_server_destroy(args.server);
grpc_completion_queue_destroy(args.cq);
gpr_free(args.addr);
/* Third round, bogus tcp server */
gpr_log(GPR_DEBUG, "Wave 3");
args.pollset = gpr_zalloc(grpc_pollset_size());
grpc_pollset_init(args.pollset, &args.mu);
gpr_event_init(&args.ready);
gpr_thd_new(&server, bad_server_thread, &args, &options);
gpr_event_wait(&args.ready, gpr_inf_future(GPR_CLOCK_MONOTONIC));
for (size_t i = 0; i < NUM_THREADS; ++i) {
gpr_thd_new(&threads[i], create_loop_destroy, args.addr, &options);
}
for (size_t i = 0; i < NUM_THREADS; ++i) {
gpr_thd_join(threads[i]);
}
gpr_atm_rel_store(&args.stop, 1);
gpr_thd_join(server);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_pollset_shutdown(&exec_ctx, args.pollset,
GRPC_CLOSURE_CREATE(done_pollset_shutdown, args.pollset,
grpc_schedule_on_exec_ctx));
grpc_exec_ctx_finish(&exec_ctx);
grpc_shutdown();
return 0;
}
static void test_connectivity(grpc_end2end_test_config config) {
grpc_end2end_test_fixture f = config.create_fixture(NULL, NULL);
grpc_connectivity_state state;
cq_verifier *cqv = cq_verifier_create(f.cq);
child_events ce;
gpr_thd_options thdopt = gpr_thd_options_default();
gpr_thd_id thdid;
config.init_client(&f, NULL);
ce.channel = f.client;
ce.cq = f.cq;
gpr_event_init(&ce.started);
gpr_thd_options_set_joinable(&thdopt);
GPR_ASSERT(gpr_thd_new(&thdid, child_thread, &ce, &thdopt));
gpr_event_wait(&ce.started, gpr_inf_future(GPR_CLOCK_MONOTONIC));
/* channels should start life in IDLE, and stay there */
GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 0) ==
GRPC_CHANNEL_IDLE);
gpr_sleep_until(GRPC_TIMEOUT_MILLIS_TO_DEADLINE(100));
GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 0) ==
GRPC_CHANNEL_IDLE);
/* start watching for a change */
gpr_log(GPR_DEBUG, "watching");
grpc_channel_watch_connectivity_state(
f.client, GRPC_CHANNEL_IDLE, gpr_now(GPR_CLOCK_MONOTONIC), f.cq, tag(1));
/* eventually the child thread completion should trigger */
gpr_thd_join(thdid);
/* check that we're still in idle, and start connecting */
GPR_ASSERT(grpc_channel_check_connectivity_state(f.client, 1) ==
GRPC_CHANNEL_IDLE);
/* start watching for a change */
grpc_channel_watch_connectivity_state(f.client, GRPC_CHANNEL_IDLE,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3),
f.cq, tag(2));
/* and now the watch should trigger */
cq_expect_completion(cqv, tag(2), 1);
cq_verify(cqv);
state = grpc_channel_check_connectivity_state(f.client, 0);
GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE ||
state == GRPC_CHANNEL_CONNECTING);
/* quickly followed by a transition to TRANSIENT_FAILURE */
grpc_channel_watch_connectivity_state(f.client, GRPC_CHANNEL_CONNECTING,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3),
f.cq, tag(3));
cq_expect_completion(cqv, tag(3), 1);
cq_verify(cqv);
state = grpc_channel_check_connectivity_state(f.client, 0);
GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE ||
state == GRPC_CHANNEL_CONNECTING);
gpr_log(GPR_DEBUG, "*** STARTING SERVER ***");
/* now let's bring up a server to connect to */
config.init_server(&f, NULL);
gpr_log(GPR_DEBUG, "*** STARTED SERVER ***");
/* we'll go through some set of transitions (some might be missed), until
READY is reached */
while (state != GRPC_CHANNEL_READY) {
grpc_channel_watch_connectivity_state(
f.client, state, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), f.cq, tag(4));
cq_expect_completion(cqv, tag(4), 1);
cq_verify(cqv);
state = grpc_channel_check_connectivity_state(f.client, 0);
GPR_ASSERT(state == GRPC_CHANNEL_READY ||
state == GRPC_CHANNEL_CONNECTING ||
state == GRPC_CHANNEL_TRANSIENT_FAILURE);
}
/* bring down the server again */
/* we should go immediately to TRANSIENT_FAILURE */
gpr_log(GPR_DEBUG, "*** SHUTTING DOWN SERVER ***");
grpc_channel_watch_connectivity_state(f.client, GRPC_CHANNEL_READY,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3),
f.cq, tag(5));
grpc_server_shutdown_and_notify(f.server, f.cq, tag(0xdead));
cq_expect_completion(cqv, tag(5), 1);
cq_expect_completion(cqv, tag(0xdead), 1);
cq_verify(cqv);
state = grpc_channel_check_connectivity_state(f.client, 0);
GPR_ASSERT(state == GRPC_CHANNEL_TRANSIENT_FAILURE ||
state == GRPC_CHANNEL_CONNECTING || state == GRPC_CHANNEL_IDLE);
/* cleanup server */
grpc_server_destroy(f.server);
gpr_log(GPR_DEBUG, "*** SHUTDOWN SERVER ***");
grpc_channel_destroy(f.client);
grpc_completion_queue_shutdown(f.cq);
grpc_completion_queue_destroy(f.cq);
config.tear_down_data(&f);
cq_verifier_destroy(cqv);
}
void test_poll_cv_trigger(void) {
grpc_wakeup_fd cvfd1, cvfd2, cvfd3;
struct pollfd pfds[6];
poll_args pargs;
gpr_thd_id t_id;
gpr_thd_options opt;
GPR_ASSERT(grpc_wakeup_fd_init(&cvfd1) == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_wakeup_fd_init(&cvfd2) == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_wakeup_fd_init(&cvfd3) == GRPC_ERROR_NONE);
GPR_ASSERT(cvfd1.read_fd < 0);
GPR_ASSERT(cvfd2.read_fd < 0);
GPR_ASSERT(cvfd3.read_fd < 0);
GPR_ASSERT(cvfd1.read_fd != cvfd2.read_fd);
GPR_ASSERT(cvfd2.read_fd != cvfd3.read_fd);
GPR_ASSERT(cvfd1.read_fd != cvfd3.read_fd);
pfds[0].fd = cvfd1.read_fd;
pfds[1].fd = cvfd2.read_fd;
pfds[2].fd = 20;
pfds[3].fd = 30;
pfds[4].fd = cvfd3.read_fd;
pfds[5].fd = 50;
pfds[0].events = 0;
pfds[1].events = POLLIN;
pfds[2].events = POLLIN | POLLHUP;
pfds[3].events = POLLIN | POLLHUP;
pfds[4].events = POLLIN;
pfds[5].events = POLLIN;
pargs.fds = pfds;
pargs.nfds = 6;
pargs.timeout = 1000;
pargs.result = -2;
opt = gpr_thd_options_default();
gpr_thd_options_set_joinable(&opt);
gpr_thd_new(&t_id, &background_poll, &pargs, &opt);
// Wakeup wakeup_fd not listening for events
GPR_ASSERT(grpc_wakeup_fd_wakeup(&cvfd1) == GRPC_ERROR_NONE);
gpr_thd_join(t_id);
GPR_ASSERT(pargs.result == 0);
GPR_ASSERT(pfds[0].revents == 0);
GPR_ASSERT(pfds[1].revents == 0);
GPR_ASSERT(pfds[2].revents == 0);
GPR_ASSERT(pfds[3].revents == 0);
GPR_ASSERT(pfds[4].revents == 0);
GPR_ASSERT(pfds[5].revents == 0);
// Pollin on socket fd
pargs.timeout = -1;
pargs.result = -2;
gpr_thd_new(&t_id, &background_poll, &pargs, &opt);
trigger_socket_event();
gpr_thd_join(t_id);
GPR_ASSERT(pargs.result == 1);
GPR_ASSERT(pfds[0].revents == 0);
GPR_ASSERT(pfds[1].revents == 0);
GPR_ASSERT(pfds[2].revents == POLLIN);
GPR_ASSERT(pfds[3].revents == 0);
GPR_ASSERT(pfds[4].revents == 0);
GPR_ASSERT(pfds[5].revents == 0);
// Pollin on wakeup fd
reset_socket_event();
pargs.result = -2;
gpr_thd_new(&t_id, &background_poll, &pargs, &opt);
GPR_ASSERT(grpc_wakeup_fd_wakeup(&cvfd2) == GRPC_ERROR_NONE);
gpr_thd_join(t_id);
GPR_ASSERT(pargs.result == 1);
GPR_ASSERT(pfds[0].revents == 0);
GPR_ASSERT(pfds[1].revents == POLLIN);
GPR_ASSERT(pfds[2].revents == 0);
GPR_ASSERT(pfds[3].revents == 0);
GPR_ASSERT(pfds[4].revents == 0);
GPR_ASSERT(pfds[5].revents == 0);
// Pollin on wakeupfd before poll()
pargs.result = -2;
gpr_thd_new(&t_id, &background_poll, &pargs, &opt);
gpr_thd_join(t_id);
GPR_ASSERT(pargs.result == 1);
GPR_ASSERT(pfds[0].revents == 0);
GPR_ASSERT(pfds[1].revents == POLLIN);
GPR_ASSERT(pfds[2].revents == 0);
GPR_ASSERT(pfds[3].revents == 0);
GPR_ASSERT(pfds[4].revents == 0);
GPR_ASSERT(pfds[5].revents == 0);
// No Events
pargs.result = -2;
pargs.timeout = 1000;
reset_socket_event();
GPR_ASSERT(grpc_wakeup_fd_consume_wakeup(&cvfd1) == GRPC_ERROR_NONE);
GPR_ASSERT(grpc_wakeup_fd_consume_wakeup(&cvfd2) == GRPC_ERROR_NONE);
gpr_thd_new(&t_id, &background_poll, &pargs, &opt);
gpr_thd_join(t_id);
GPR_ASSERT(pargs.result == 0);
GPR_ASSERT(pfds[0].revents == 0);
GPR_ASSERT(pfds[1].revents == 0);
GPR_ASSERT(pfds[2].revents == 0);
GPR_ASSERT(pfds[3].revents == 0);
GPR_ASSERT(pfds[4].revents == 0);
GPR_ASSERT(pfds[5].revents == 0);
}
// This test launches a minimal TLS server on a separate thread and then
// establishes a TLS handshake via the core library to the server. The TLS
// server validates ALPN aspects of the handshake and supplies the protocol
// specified in the server_alpn_preferred argument to the client.
static bool client_ssl_test(char *server_alpn_preferred) {
bool success = true;
grpc_init();
// Find a port we can bind to. Retries added to handle flakes in port server
// and port picking.
int port = -1;
int server_socket = -1;
int socket_retries = 10;
while (server_socket == -1 && socket_retries-- > 0) {
port = grpc_pick_unused_port_or_die();
server_socket = create_socket(port);
if (server_socket == -1) {
sleep(1);
}
}
GPR_ASSERT(server_socket > 0);
// Launch the TLS server thread.
gpr_thd_options thdopt = gpr_thd_options_default();
gpr_thd_id thdid;
gpr_thd_options_set_joinable(&thdopt);
server_args args = {.socket = server_socket,
.alpn_preferred = server_alpn_preferred};
GPR_ASSERT(gpr_thd_new(&thdid, server_thread, &args, &thdopt));
// Load key pair and establish client SSL credentials.
grpc_ssl_pem_key_cert_pair pem_key_cert_pair;
gpr_slice ca_slice, cert_slice, key_slice;
GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
grpc_load_file(SSL_CA_PATH, 1, &ca_slice)));
GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
grpc_load_file(SSL_CERT_PATH, 1, &cert_slice)));
GPR_ASSERT(GRPC_LOG_IF_ERROR("load_file",
grpc_load_file(SSL_KEY_PATH, 1, &key_slice)));
const char *ca_cert = (const char *)GPR_SLICE_START_PTR(ca_slice);
pem_key_cert_pair.private_key = (const char *)GPR_SLICE_START_PTR(key_slice);
pem_key_cert_pair.cert_chain = (const char *)GPR_SLICE_START_PTR(cert_slice);
grpc_channel_credentials *ssl_creds =
grpc_ssl_credentials_create(ca_cert, &pem_key_cert_pair, NULL);
// Establish a channel pointing at the TLS server. Since the gRPC runtime is
// lazy, this won't necessarily establish a connection yet.
char *target;
gpr_asprintf(&target, "127.0.0.1:%d", port);
grpc_arg ssl_name_override = {GRPC_ARG_STRING,
GRPC_SSL_TARGET_NAME_OVERRIDE_ARG,
{"foo.test.google.fr"}};
grpc_channel_args grpc_args;
grpc_args.num_args = 1;
grpc_args.args = &ssl_name_override;
grpc_channel *channel =
grpc_secure_channel_create(ssl_creds, target, &grpc_args, NULL);
GPR_ASSERT(channel);
gpr_free(target);
// Initially the channel will be idle, the
// grpc_channel_check_connectivity_state triggers an attempt to connect.
GPR_ASSERT(grpc_channel_check_connectivity_state(
channel, 1 /* try_to_connect */) == GRPC_CHANNEL_IDLE);
// Wait a bounded number of times for the channel to be ready. When the
// channel is ready, the initial TLS handshake will have successfully
// completed and we know that the client's ALPN list satisfied the server.
int retries = 10;
grpc_connectivity_state state = GRPC_CHANNEL_IDLE;
grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
while (state != GRPC_CHANNEL_READY && retries-- > 0) {
grpc_channel_watch_connectivity_state(
channel, state, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3), cq, NULL);
gpr_timespec cq_deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5);
grpc_event ev = grpc_completion_queue_next(cq, cq_deadline, NULL);
GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
state =
grpc_channel_check_connectivity_state(channel, 0 /* try_to_connect */);
}
grpc_completion_queue_destroy(cq);
if (retries < 0) {
success = false;
}
grpc_channel_destroy(channel);
grpc_channel_credentials_release(ssl_creds);
gpr_slice_unref(cert_slice);
gpr_slice_unref(key_slice);
gpr_slice_unref(ca_slice);
gpr_thd_join(thdid);
grpc_shutdown();
return success;
}
static void init_output() {
gpr_thd_options options = gpr_thd_options_default();
gpr_thd_options_set_joinable(&options);
GPR_ASSERT(gpr_thd_new(&g_writing_thread, writing_thread, NULL, &options));
atexit(finish_writing);
}