GPR_EXPORT grpc_server *GPR_CALLTYPE
grpcsharp_server_create(grpc_completion_queue *cq,
const grpc_channel_args *args) {
grpc_server *server = grpc_server_create(args, NULL);
grpc_server_register_completion_queue(server, cq, NULL);
return server;
}
int main(int argc, char **argv) {
const char *addr = bad_ssl_addr(argc, argv);
grpc_ssl_pem_key_cert_pair pem_key_cert_pair;
grpc_server_credentials *ssl_creds;
grpc_server *server;
gpr_slice cert_slice, key_slice;
int ok;
grpc_init();
cert_slice =
gpr_load_file("src/core/lib/tsi/test_creds/badserver.pem", 1, &ok);
GPR_ASSERT(ok);
key_slice =
gpr_load_file("src/core/lib/tsi/test_creds/badserver.key", 1, &ok);
GPR_ASSERT(ok);
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);
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);
gpr_slice_unref(cert_slice);
gpr_slice_unref(key_slice);
bad_ssl_run(server);
grpc_shutdown();
return 0;
}
void test_register_method_fail(void) {
grpc_server *server = grpc_server_create(NULL, NULL);
void *method;
void *method_old;
method =
grpc_server_register_method(server, NULL, NULL, GRPC_SRM_PAYLOAD_NONE, 0);
GPR_ASSERT(method == NULL);
method_old =
grpc_server_register_method(server, "m", "h", GRPC_SRM_PAYLOAD_NONE, 0);
GPR_ASSERT(method_old != NULL);
method = grpc_server_register_method(
server, "m", "h", GRPC_SRM_PAYLOAD_READ_INITIAL_BYTE_BUFFER, 0);
GPR_ASSERT(method == NULL);
method_old =
grpc_server_register_method(server, "m2", "h2", GRPC_SRM_PAYLOAD_NONE,
GRPC_INITIAL_METADATA_IDEMPOTENT_REQUEST);
GPR_ASSERT(method_old != NULL);
method =
grpc_server_register_method(server, "m2", "h2", GRPC_SRM_PAYLOAD_NONE, 0);
GPR_ASSERT(method == NULL);
method = grpc_server_register_method(
server, "m2", "h2", GRPC_SRM_PAYLOAD_READ_INITIAL_BYTE_BUFFER,
GRPC_INITIAL_METADATA_IDEMPOTENT_REQUEST);
GPR_ASSERT(method == NULL);
grpc_server_destroy(server);
}
int main(int argc, char **argv) {
grpc_completion_queue *cq1;
grpc_completion_queue *cq2;
grpc_server *server;
grpc_test_init(argc, argv);
grpc_init();
cq1 = grpc_completion_queue_create();
cq2 = grpc_completion_queue_create();
server = grpc_server_create(NULL);
grpc_server_register_completion_queue(server, cq1);
grpc_server_add_insecure_http2_port(server, "[::]:0");
grpc_server_register_completion_queue(server, cq2);
grpc_server_start(server);
grpc_server_shutdown_and_notify(server, cq2, NULL);
grpc_completion_queue_next(
cq2, gpr_inf_future(GPR_CLOCK_REALTIME)); /* cue queue hang */
grpc_completion_queue_shutdown(cq1);
grpc_completion_queue_shutdown(cq2);
grpc_completion_queue_next(cq1, gpr_inf_future(GPR_CLOCK_REALTIME));
grpc_completion_queue_next(cq2, gpr_inf_future(GPR_CLOCK_REALTIME));
grpc_server_destroy(server);
grpc_completion_queue_destroy(cq1);
grpc_completion_queue_destroy(cq2);
grpc_shutdown();
return 0;
}
/*
call-seq:
cq = CompletionQueue.new
server = Server.new(cq, {'arg1': 'value1'})
Initializes server instances. */
static VALUE grpc_rb_server_init(VALUE self, VALUE cqueue, VALUE channel_args) {
grpc_completion_queue *cq = NULL;
grpc_rb_server *wrapper = NULL;
grpc_server *srv = NULL;
grpc_channel_args args;
MEMZERO(&args, grpc_channel_args, 1);
cq = grpc_rb_get_wrapped_completion_queue(cqueue);
TypedData_Get_Struct(self, grpc_rb_server, &grpc_rb_server_data_type,
wrapper);
grpc_rb_hash_convert_to_channel_args(channel_args, &args);
srv = grpc_server_create(&args, NULL);
if (args.args != NULL) {
xfree(args.args); /* Allocated by grpc_rb_hash_convert_to_channel_args */
}
if (srv == NULL) {
rb_raise(rb_eRuntimeError, "could not create a gRPC server, not sure why");
}
grpc_server_register_completion_queue(srv, cq, NULL);
wrapper->wrapped = srv;
/* Add the cq as the server's mark object. This ensures the ruby cq can't be
GCed before the server */
wrapper->mark = cqueue;
return self;
}
/*
call-seq:
server = Server.new({'arg1': 'value1'})
Initializes server instances. */
static VALUE grpc_rb_server_init(VALUE self, VALUE channel_args) {
grpc_completion_queue* cq = NULL;
grpc_rb_server* wrapper = NULL;
grpc_server* srv = NULL;
grpc_channel_args args;
MEMZERO(&args, grpc_channel_args, 1);
grpc_ruby_once_init();
cq = grpc_completion_queue_create_for_pluck(NULL);
TypedData_Get_Struct(self, grpc_rb_server, &grpc_rb_server_data_type,
wrapper);
grpc_rb_hash_convert_to_channel_args(channel_args, &args);
srv = grpc_server_create(&args, NULL);
if (args.args != NULL) {
xfree(args.args); /* Allocated by grpc_rb_hash_convert_to_channel_args */
}
if (srv == NULL) {
rb_raise(rb_eRuntimeError, "could not create a gRPC server, not sure why");
}
grpc_server_register_completion_queue(srv, cq, NULL);
wrapper->wrapped = srv;
wrapper->queue = cq;
return self;
}
static grpc_server *create_proxy_server(const char *port) {
grpc_server *s = grpc_server_create(NULL, NULL);
grpc_ssl_pem_key_cert_pair pem_cert_key_pair = {test_server1_key,
test_server1_cert};
grpc_server_credentials *ssl_creds =
grpc_ssl_server_credentials_create(NULL, &pem_cert_key_pair, 1, 0, NULL);
GPR_ASSERT(grpc_server_add_secure_http2_port(s, port, ssl_creds));
grpc_server_credentials_release(ssl_creds);
return s;
}
static void prepare_test(int is_client) {
int port;
char *server_hostport;
grpc_op *op;
g_state.is_client = is_client;
grpc_metadata_array_init(&g_state.initial_metadata_recv);
grpc_metadata_array_init(&g_state.trailing_metadata_recv);
g_state.deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(2);
g_state.cq = grpc_completion_queue_create(NULL);
g_state.cqv = cq_verifier_create(g_state.cq);
g_state.details = NULL;
g_state.details_capacity = 0;
if (is_client) {
/* create a call, channel to a non existant server */
g_state.chan =
grpc_insecure_channel_create("nonexistant:54321", NULL, NULL);
g_state.call = grpc_channel_create_call(
g_state.chan, NULL, GRPC_PROPAGATE_DEFAULTS, g_state.cq, "/Foo",
"nonexistant", g_state.deadline, NULL);
} else {
g_state.server = grpc_server_create(NULL, NULL);
grpc_server_register_completion_queue(g_state.server, g_state.cq, NULL);
port = grpc_pick_unused_port_or_die();
gpr_join_host_port(&server_hostport, "0.0.0.0", port);
grpc_server_add_insecure_http2_port(g_state.server, server_hostport);
grpc_server_start(g_state.server);
gpr_free(server_hostport);
gpr_join_host_port(&server_hostport, "localhost", port);
g_state.chan = grpc_insecure_channel_create(server_hostport, NULL, NULL);
gpr_free(server_hostport);
g_state.call = grpc_channel_create_call(
g_state.chan, NULL, GRPC_PROPAGATE_DEFAULTS, g_state.cq, "/Foo", "bar",
g_state.deadline, NULL);
grpc_metadata_array_init(&g_state.server_initial_metadata_recv);
grpc_call_details_init(&g_state.call_details);
op = g_state.ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
op->flags = 0;
op->reserved = NULL;
op++;
GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(g_state.call, g_state.ops,
(size_t)(op - g_state.ops),
tag(1), NULL));
GPR_ASSERT(GRPC_CALL_OK ==
grpc_server_request_call(g_state.server, &g_state.server_call,
&g_state.call_details,
&g_state.server_initial_metadata_recv,
g_state.cq, g_state.cq, tag(101)));
cq_expect_completion(g_state.cqv, tag(101), 1);
cq_expect_completion(g_state.cqv, tag(1), 1);
cq_verify(g_state.cqv);
}
}
void chttp2_init_server_fullstack(grpc_end2end_test_fixture *f,
grpc_channel_args *server_args) {
fullstack_fixture_data *ffd = f->fixture_data;
if (f->server) {
grpc_server_destroy(f->server);
}
f->server = grpc_server_create(server_args);
grpc_server_register_completion_queue(f->server, f->cq);
GPR_ASSERT(grpc_server_add_http2_port(f->server, ffd->localaddr));
grpc_server_start(f->server);
}
void test_bind_server_twice(void) {
char *addr;
grpc_server *server1 = grpc_server_create(NULL, NULL);
grpc_server *server2 = grpc_server_create(NULL, NULL);
grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
int port = grpc_pick_unused_port_or_die();
gpr_asprintf(&addr, "[::]:%d", port);
grpc_server_register_completion_queue(server1, cq, NULL);
grpc_server_register_completion_queue(server2, cq, NULL);
GPR_ASSERT(port == grpc_server_add_insecure_http2_port(server1, addr));
GPR_ASSERT(0 == grpc_server_add_insecure_http2_port(server2, addr));
grpc_server_shutdown_and_notify(server1, cq, NULL);
grpc_server_shutdown_and_notify(server2, cq, NULL);
grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_MONOTONIC), NULL);
grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_MONOTONIC), NULL);
grpc_server_destroy(server1);
grpc_server_destroy(server2);
grpc_completion_queue_destroy(cq);
gpr_free(addr);
}
// Simple gRPC server. This listens until client_handshake_complete occurs.
static void server_thread(void *arg) {
const int port = *(int *)arg;
// Load key pair and establish server 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_server_credentials *ssl_creds = grpc_ssl_server_credentials_create(
ca_cert, &pem_key_cert_pair, 1, 0, NULL);
// Start server listening on local port.
char *addr;
gpr_asprintf(&addr, "127.0.0.1:%d", port);
grpc_server *server = grpc_server_create(NULL, NULL);
GPR_ASSERT(grpc_server_add_secure_http2_port(server, addr, ssl_creds));
free(addr);
grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
grpc_server_register_completion_queue(server, cq, NULL);
grpc_server_start(server);
// Wait a bounded number of time until client_handshake_complete is set,
// sleeping between polls.
int retries = 10;
while (!gpr_event_get(&client_handshake_complete) && retries-- > 0) {
const gpr_timespec cq_deadline = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1);
grpc_event ev = grpc_completion_queue_next(cq, cq_deadline, NULL);
GPR_ASSERT(ev.type == GRPC_QUEUE_TIMEOUT);
}
gpr_log(GPR_INFO, "Shutting down server");
grpc_server_shutdown_and_notify(server, cq, NULL);
grpc_completion_queue_shutdown(cq);
const 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);
grpc_server_destroy(server);
grpc_completion_queue_destroy(cq);
grpc_server_credentials_release(ssl_creds);
gpr_slice_unref(cert_slice);
gpr_slice_unref(key_slice);
gpr_slice_unref(ca_slice);
}
void chttp2_init_server_fullstack(grpc_end2end_test_fixture *f,
grpc_channel_args *server_args) {
fullstack_fixture_data *ffd = f->fixture_data;
if (f->server) {
grpc_server_destroy(f->server);
}
f->server = grpc_server_create(server_args, NULL);
grpc_server_register_completion_queue(f->server, f->cq, NULL);
GPR_ASSERT(grpc_server_add_insecure_http2_port(
f->server, grpc_end2end_proxy_get_server_port(ffd->proxy)));
grpc_server_start(f->server);
}
static void chttp2_init_server_secure_fullstack(
grpc_end2end_test_fixture *f, grpc_channel_args *server_args,
grpc_server_credentials *server_creds) {
fullstack_secure_fixture_data *ffd = f->fixture_data;
if (f->server) {
grpc_server_destroy(f->server);
}
f->server =
grpc_server_create(f->server_cq, server_args);
GPR_ASSERT(grpc_server_add_secure_http2_port(f->server, ffd->localaddr, server_creds));
grpc_server_credentials_release(server_creds);
grpc_server_start(f->server);
}
int main(int argc, char **argv) {
grpc_completion_queue *cq1;
grpc_completion_queue *cq2;
grpc_completion_queue *cq3;
grpc_completion_queue_attributes attr;
grpc_server *server;
grpc_test_init(argc, argv);
grpc_init();
attr.version = 1;
attr.cq_completion_type = GRPC_CQ_NEXT;
attr.cq_polling_type = GRPC_CQ_DEFAULT_POLLING;
cq1 = grpc_completion_queue_create(
grpc_completion_queue_factory_lookup(&attr), &attr, NULL);
attr.cq_polling_type = GRPC_CQ_NON_LISTENING;
cq2 = grpc_completion_queue_create(
grpc_completion_queue_factory_lookup(&attr), &attr, NULL);
attr.cq_polling_type = GRPC_CQ_NON_POLLING;
cq3 = grpc_completion_queue_create(
grpc_completion_queue_factory_lookup(&attr), &attr, NULL);
server = grpc_server_create(NULL, NULL);
grpc_server_register_completion_queue(server, cq1, NULL);
grpc_server_add_insecure_http2_port(server, "[::]:0");
grpc_server_register_completion_queue(server, cq2, NULL);
grpc_server_register_completion_queue(server, cq3, NULL);
grpc_server_start(server);
grpc_server_shutdown_and_notify(server, cq2, NULL);
grpc_completion_queue_next(cq2, gpr_inf_future(GPR_CLOCK_REALTIME),
NULL); /* cue queue hang */
grpc_completion_queue_shutdown(cq1);
grpc_completion_queue_shutdown(cq2);
grpc_completion_queue_shutdown(cq3);
grpc_completion_queue_next(cq1, gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
grpc_completion_queue_next(cq2, gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
grpc_completion_queue_next(cq3, gpr_inf_future(GPR_CLOCK_REALTIME), NULL);
grpc_server_destroy(server);
grpc_completion_queue_destroy(cq1);
grpc_completion_queue_destroy(cq2);
grpc_completion_queue_destroy(cq3);
grpc_shutdown();
return 0;
}
void chttp2_init_server_fullstack(grpc_end2end_test_fixture *f,
grpc_channel_args *server_args) {
fullstack_fixture_data *ffd = f->fixture_data;
if (f->server) {
grpc_server_destroy(f->server);
}
grpc_arg arg = grpc_load_reporting_config_create_arg(g_server_lrc);
server_args = grpc_channel_args_copy_and_add(server_args, &arg, 1);
f->server = grpc_server_create(server_args, NULL);
grpc_channel_args_destroy(server_args);
grpc_server_register_completion_queue(f->server, f->cq, NULL);
GPR_ASSERT(grpc_server_add_insecure_http2_port(f->server, ffd->localaddr));
grpc_server_start(f->server);
}
static void chttp2_init_server_socketpair(grpc_end2end_test_fixture *f,
grpc_channel_args *server_args) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
sp_fixture_data *sfd = f->fixture_data;
GPR_ASSERT(!f->server);
f->server = grpc_server_create(server_args, NULL);
GPR_ASSERT(f->server);
grpc_server_register_completion_queue(f->server, f->cq, NULL);
grpc_server_start(f->server);
grpc_server_add_insecure_channel_from_fd(f->server, f->cq, sfd->fd_pair[1]);
grpc_exec_ctx_finish(&exec_ctx);
}
static void chttp2_init_server_socketpair(grpc_end2end_test_fixture *f,
grpc_channel_args *server_args) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_endpoint_pair *sfd = f->fixture_data;
grpc_transport *transport;
GPR_ASSERT(!f->server);
f->server = grpc_server_create(server_args, NULL);
grpc_server_register_completion_queue(f->server, f->cq, NULL);
grpc_server_start(f->server);
transport =
grpc_create_chttp2_transport(&exec_ctx, server_args, sfd->server, 0);
server_setup_transport(f, transport);
grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL, 0);
grpc_exec_ctx_finish(&exec_ctx);
}
void chttp2_init_server_fullstack_compression(grpc_end2end_test_fixture *f,
grpc_channel_args *server_args) {
fullstack_compression_fixture_data *ffd = f->fixture_data;
if (ffd->server_args_compression != NULL) {
grpc_channel_args_destroy(ffd->server_args_compression);
}
ffd->server_args_compression = grpc_channel_args_set_compression_algorithm(
server_args, GRPC_COMPRESS_GZIP);
if (f->server) {
grpc_server_destroy(f->server);
}
f->server = grpc_server_create(ffd->server_args_compression);
grpc_server_register_completion_queue(f->server, f->cq);
GPR_ASSERT(grpc_server_add_insecure_http2_port(f->server, ffd->localaddr));
grpc_server_start(f->server);
}
static int pygrpc_server_init(Server *self, PyObject *args, PyObject *kwds) {
CompletionQueue *completion_queue;
static char *kwlist[] = {"completion_queue", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O!:Server", kwlist,
&pygrpc_CompletionQueueType,
&completion_queue)) {
return -1;
}
self->c_server = grpc_server_create(NULL);
grpc_server_register_completion_queue(self->c_server,
completion_queue->c_completion_queue);
self->completion_queue = completion_queue;
Py_INCREF(completion_queue);
return 0;
}
void chttp2_init_server_load_reporting(grpc_end2end_test_fixture *f,
grpc_channel_args *server_args) {
load_reporting_fixture_data *ffd = f->fixture_data;
grpc_arg arg = grpc_load_reporting_enable_arg();
if (f->server) {
grpc_server_destroy(f->server);
}
server_args = grpc_channel_args_copy_and_add(server_args, &arg, 1);
f->server = grpc_server_create(server_args, NULL);
{
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_channel_args_destroy(&exec_ctx, server_args);
grpc_exec_ctx_finish(&exec_ctx);
}
grpc_server_register_completion_queue(f->server, f->cq, NULL);
GPR_ASSERT(grpc_server_add_insecure_http2_port(f->server, ffd->localaddr));
grpc_server_start(f->server);
}
void test_add_same_port_twice() {
int port = grpc_pick_unused_port_or_die();
char *addr = NULL;
grpc_completion_queue *cq = grpc_completion_queue_create(NULL);
grpc_server *server = grpc_server_create(NULL, NULL);
grpc_server_credentials *fake_creds =
grpc_fake_transport_security_server_credentials_create();
gpr_join_host_port(&addr, "localhost", port);
GPR_ASSERT(grpc_server_add_secure_http2_port(server, addr, fake_creds));
GPR_ASSERT(grpc_server_add_secure_http2_port(server, addr, fake_creds) == 0);
grpc_server_credentials_release(fake_creds);
gpr_free(addr);
grpc_server_shutdown_and_notify(server, cq, NULL);
grpc_completion_queue_pluck(cq, NULL, gpr_inf_future(GPR_CLOCK_REALTIME),
NULL);
grpc_server_destroy(server);
grpc_completion_queue_destroy(cq);
}
static void revive_server(const servers_fixture *f, request_data *rdata,
size_t i) {
int got_port;
gpr_log(GPR_INFO, "RAISE AGAIN SERVER %d", i);
GPR_ASSERT(f->servers[i] == NULL);
gpr_log(GPR_DEBUG, "revive: %s", f->servers_hostports[i]);
f->servers[i] = grpc_server_create(NULL, NULL);
grpc_server_register_completion_queue(f->servers[i], f->cq, NULL);
GPR_ASSERT((got_port = grpc_server_add_insecure_http2_port(
f->servers[i], f->servers_hostports[i])) > 0);
grpc_server_start(f->servers[i]);
GPR_ASSERT(GRPC_CALL_OK ==
grpc_server_request_call(f->servers[i], &f->server_calls[i],
&rdata->call_details[i],
&f->request_metadata_recv[i], f->cq,
f->cq, tag(1000 + (int)i)));
}
Server *pygrpc_Server_new(PyTypeObject *type, PyObject *args, PyObject *kwargs) {
Server *self;
CompletionQueue *cq;
PyObject *py_args;
grpc_channel_args c_args;
char *keywords[] = {"cq", "args", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O!O:Server", keywords,
&pygrpc_CompletionQueue_type, &cq, &py_args)) {
return NULL;
}
if (!pygrpc_produce_channel_args(py_args, &c_args)) {
return NULL;
}
self = (Server *)type->tp_alloc(type, 0);
self->c_serv = grpc_server_create(&c_args, NULL);
grpc_server_register_completion_queue(self->c_serv, cq->c_cq, NULL);
pygrpc_discard_channel_args(c_args);
self->cq = cq;
Py_INCREF(self->cq);
return self;
}
void test_connect(const char *server_host, const char *client_host, int port,
int expect_ok) {
char *client_hostport;
char *server_hostport;
grpc_channel *client;
grpc_server *server;
grpc_completion_queue *cq;
grpc_call *c;
grpc_call *s;
cq_verifier *cqv;
gpr_timespec deadline;
int got_port;
grpc_op ops[6];
grpc_op *op;
grpc_metadata_array initial_metadata_recv;
grpc_metadata_array trailing_metadata_recv;
grpc_metadata_array request_metadata_recv;
grpc_status_code status;
grpc_call_error error;
char *details = NULL;
size_t details_capacity = 0;
int was_cancelled = 2;
grpc_call_details call_details;
char *peer;
int picked_port = 0;
if (port == 0) {
port = grpc_pick_unused_port_or_die();
picked_port = 1;
}
gpr_join_host_port(&server_hostport, server_host, port);
grpc_metadata_array_init(&initial_metadata_recv);
grpc_metadata_array_init(&trailing_metadata_recv);
grpc_metadata_array_init(&request_metadata_recv);
grpc_call_details_init(&call_details);
/* Create server. */
cq = grpc_completion_queue_create(NULL);
server = grpc_server_create(NULL, NULL);
grpc_server_register_completion_queue(server, cq, NULL);
GPR_ASSERT((got_port = grpc_server_add_insecure_http2_port(
server, server_hostport)) > 0);
if (port == 0) {
port = got_port;
} else {
GPR_ASSERT(port == got_port);
}
grpc_server_start(server);
cqv = cq_verifier_create(cq);
/* Create client. */
if (client_host[0] == 'i') {
/* for ipv4:/ipv6: addresses, concatenate the port to each of the parts */
size_t i;
gpr_slice uri_slice;
gpr_slice_buffer uri_parts;
char **hosts_with_port;
uri_slice =
gpr_slice_new((char *)client_host, strlen(client_host), do_nothing);
gpr_slice_buffer_init(&uri_parts);
gpr_slice_split(uri_slice, ",", &uri_parts);
hosts_with_port = gpr_malloc(sizeof(char *) * uri_parts.count);
for (i = 0; i < uri_parts.count; i++) {
char *uri_part_str = gpr_dump_slice(uri_parts.slices[i], GPR_DUMP_ASCII);
gpr_asprintf(&hosts_with_port[i], "%s:%d", uri_part_str, port);
gpr_free(uri_part_str);
}
client_hostport = gpr_strjoin_sep((const char **)hosts_with_port,
uri_parts.count, ",", NULL);
for (i = 0; i < uri_parts.count; i++) {
gpr_free(hosts_with_port[i]);
}
gpr_free(hosts_with_port);
gpr_slice_buffer_destroy(&uri_parts);
gpr_slice_unref(uri_slice);
} else {
gpr_join_host_port(&client_hostport, client_host, port);
}
client = grpc_insecure_channel_create(client_hostport, NULL, NULL);
gpr_log(GPR_INFO, "Testing with server=%s client=%s (expecting %s)",
server_hostport, client_hostport, expect_ok ? "success" : "failure");
gpr_free(client_hostport);
gpr_free(server_hostport);
if (expect_ok) {
/* Normal deadline, shouldn't be reached. */
deadline = ms_from_now(60000);
} else {
/* Give up faster when failure is expected.
BUG: Setting this to 1000 reveals a memory leak (b/18608927). */
deadline = ms_from_now(1500);
}
/* Send a trivial request. */
c = grpc_channel_create_call(client, NULL, GRPC_PROPAGATE_DEFAULTS, cq,
"/foo", "foo.test.google.fr", deadline, NULL);
GPR_ASSERT(c);
memset(ops, 0, sizeof(ops));
op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
op->flags = expect_ok ? GRPC_INITIAL_METADATA_WAIT_FOR_READY : 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 = &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 = &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++;
error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL);
GPR_ASSERT(GRPC_CALL_OK == error);
if (expect_ok) {
/* Check for a successful request. */
error = grpc_server_request_call(server, &s, &call_details,
&request_metadata_recv, cq, cq, tag(101));
GPR_ASSERT(GRPC_CALL_OK == error);
CQ_EXPECT_COMPLETION(cqv, tag(101), 1);
cq_verify(cqv);
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++;
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;
op->data.send_status_from_server.status_details = "xyz";
op->flags = 0;
op++;
op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
op->data.recv_close_on_server.cancelled = &was_cancelled;
op->flags = 0;
op++;
error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(102), NULL);
GPR_ASSERT(GRPC_CALL_OK == error);
CQ_EXPECT_COMPLETION(cqv, tag(102), 1);
CQ_EXPECT_COMPLETION(cqv, tag(1), 1);
cq_verify(cqv);
peer = grpc_call_get_peer(c);
gpr_log(GPR_DEBUG, "got peer: '%s'", peer);
gpr_free(peer);
GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
GPR_ASSERT(0 == strcmp(details, "xyz"));
GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
GPR_ASSERT(was_cancelled == 1);
grpc_call_destroy(s);
} else {
/* Check for a failed connection. */
CQ_EXPECT_COMPLETION(cqv, tag(1), 1);
cq_verify(cqv);
GPR_ASSERT(status == GRPC_STATUS_UNAVAILABLE);
}
grpc_call_destroy(c);
cq_verifier_destroy(cqv);
/* Destroy client. */
grpc_channel_destroy(client);
/* Destroy server. */
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_server_destroy(server);
grpc_completion_queue_shutdown(cq);
drain_cq(cq);
grpc_completion_queue_destroy(cq);
grpc_metadata_array_destroy(&initial_metadata_recv);
grpc_metadata_array_destroy(&trailing_metadata_recv);
grpc_metadata_array_destroy(&request_metadata_recv);
grpc_call_details_destroy(&call_details);
gpr_free(details);
if (picked_port) {
grpc_recycle_unused_port(port);
}
}
void test_connect(const char *server_host, const char *client_host, int port,
int expect_ok) {
char *client_hostport;
char *server_hostport;
grpc_channel *client;
grpc_server *server;
grpc_completion_queue *client_cq;
grpc_completion_queue *server_cq;
grpc_call *c;
grpc_call *s;
cq_verifier *v_client;
cq_verifier *v_server;
gpr_timespec deadline;
int got_port;
grpc_op ops[6];
grpc_op *op;
grpc_metadata_array initial_metadata_recv;
grpc_metadata_array trailing_metadata_recv;
grpc_metadata_array request_metadata_recv;
grpc_status_code status;
char *details = NULL;
size_t details_capacity = 0;
int was_cancelled = 2;
grpc_call_details call_details;
if (port == 0) {
port = grpc_pick_unused_port_or_die();
}
gpr_join_host_port(&server_hostport, server_host, port);
grpc_metadata_array_init(&initial_metadata_recv);
grpc_metadata_array_init(&trailing_metadata_recv);
grpc_metadata_array_init(&request_metadata_recv);
grpc_call_details_init(&call_details);
/* Create server. */
server_cq = grpc_completion_queue_create();
server = grpc_server_create(NULL);
grpc_server_register_completion_queue(server, server_cq);
GPR_ASSERT((got_port = grpc_server_add_http2_port(server, server_hostport)) >
0);
if (port == 0) {
port = got_port;
} else {
GPR_ASSERT(port == got_port);
}
grpc_server_start(server);
v_server = cq_verifier_create(server_cq);
/* Create client. */
gpr_join_host_port(&client_hostport, client_host, port);
client_cq = grpc_completion_queue_create();
client = grpc_channel_create(client_hostport, NULL);
v_client = cq_verifier_create(client_cq);
gpr_log(GPR_INFO, "Testing with server=%s client=%s (expecting %s)",
server_hostport, client_hostport, expect_ok ? "success" : "failure");
gpr_free(client_hostport);
gpr_free(server_hostport);
if (expect_ok) {
/* Normal deadline, shouldn't be reached. */
deadline = ms_from_now(60000);
} else {
/* Give up faster when failure is expected.
BUG: Setting this to 1000 reveals a memory leak (b/18608927). */
deadline = ms_from_now(1500);
}
/* Send a trivial request. */
c = grpc_channel_create_call(client, client_cq, "/foo", "foo.test.google.fr",
deadline);
GPR_ASSERT(c);
op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
op++;
op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
op++;
op->op = GRPC_OP_RECV_INITIAL_METADATA;
op->data.recv_initial_metadata = &initial_metadata_recv;
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++;
GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(c, ops, op - ops, tag(1)));
if (expect_ok) {
/* Check for a successful request. */
GPR_ASSERT(GRPC_CALL_OK ==
grpc_server_request_call(server, &s, &call_details,
&request_metadata_recv, server_cq,
server_cq, tag(101)));
cq_expect_completion(v_server, tag(101), GRPC_OP_OK);
cq_verify(v_server);
op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
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;
op->data.send_status_from_server.status_details = "xyz";
op++;
op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
op->data.recv_close_on_server.cancelled = &was_cancelled;
op++;
GPR_ASSERT(GRPC_CALL_OK ==
grpc_call_start_batch(s, ops, op - ops, tag(102)));
cq_expect_completion(v_server, tag(102), GRPC_OP_OK);
cq_verify(v_server);
cq_expect_completion(v_client, tag(1), GRPC_OP_OK);
cq_verify(v_client);
GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
GPR_ASSERT(0 == strcmp(details, "xyz"));
GPR_ASSERT(0 == strcmp(call_details.method, "/foo"));
GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr"));
GPR_ASSERT(was_cancelled == 0);
grpc_call_destroy(s);
} else {
/* Check for a failed connection. */
cq_expect_completion(v_client, tag(1), GRPC_OP_OK);
cq_verify(v_client);
GPR_ASSERT(status == GRPC_STATUS_DEADLINE_EXCEEDED);
}
grpc_call_destroy(c);
cq_verifier_destroy(v_client);
cq_verifier_destroy(v_server);
/* Destroy client. */
grpc_channel_destroy(client);
grpc_completion_queue_shutdown(client_cq);
drain_cq(client_cq);
grpc_completion_queue_destroy(client_cq);
/* Destroy server. */
grpc_server_shutdown(server);
grpc_server_destroy(server);
grpc_completion_queue_shutdown(server_cq);
drain_cq(server_cq);
grpc_completion_queue_destroy(server_cq);
}
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];
#define MAX_ARGS 4
grpc_arg arge[MAX_ARGS];
grpc_arg *e;
grpc_channel_args args = {0, NULL};
grpc_http_server_page home_page = {"/", "text/html",
"<head>\n"
"<title>Echo Server</title>\n"
"</head>\n"
"<body>\n"
"Welcome to the world of the future!\n"
"</body>\n"};
GPR_ASSERT(argc >= 1);
fake_argv[0] = argv[0];
grpc_test_init(1, fake_argv);
grpc_init();
srand(clock());
memset(arge, 0, sizeof(arge));
args.args = arge;
cl = gpr_cmdline_create("echo 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);
e = &arge[args.num_args++];
e->type = GRPC_ARG_POINTER;
e->key = GRPC_ARG_SERVE_OVER_HTTP;
e->value.pointer.p = &home_page;
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();
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);
server = grpc_secure_server_create(ssl_creds, cq, &args);
GPR_ASSERT(grpc_server_add_secure_http2_port(server, addr));
grpc_server_credentials_release(ssl_creds);
} else {
server = grpc_server_create(cq, &args);
GPR_ASSERT(grpc_server_add_http2_port(server, addr));
}
grpc_server_start(server);
gpr_free(addr_buf);
addr = addr_buf = NULL;
request_call();
signal(SIGINT, sigint_handler);
while (!shutdown_finished) {
if (got_sigint && !shutdown_started) {
gpr_log(GPR_INFO, "Shutting down due to SIGINT");
grpc_server_shutdown(server);
grpc_completion_queue_shutdown(cq);
shutdown_started = 1;
}
ev = grpc_completion_queue_next(
cq, gpr_time_add(gpr_now(), gpr_time_from_seconds(1)));
if (!ev) continue;
s = ev->tag;
switch (ev->type) {
case GRPC_SERVER_RPC_NEW:
if (ev->call != NULL) {
/* initial ops are already started in request_call */
grpc_call_server_accept_old(ev->call, cq, s);
grpc_call_server_end_initial_metadata_old(ev->call,
GRPC_WRITE_BUFFER_HINT);
GPR_ASSERT(grpc_call_start_read_old(ev->call, s) == GRPC_CALL_OK);
request_call();
} else {
GPR_ASSERT(shutdown_started);
gpr_free(s);
}
break;
case GRPC_WRITE_ACCEPTED:
GPR_ASSERT(ev->data.write_accepted == GRPC_OP_OK);
GPR_ASSERT(grpc_call_start_read_old(ev->call, s) == GRPC_CALL_OK);
break;
case GRPC_READ:
if (ev->data.read) {
assert_read_ok(ev->tag, ev->data.read);
GPR_ASSERT(grpc_call_start_write_old(ev->call, ev->data.read, s,
GRPC_WRITE_BUFFER_HINT) ==
GRPC_CALL_OK);
} else {
GPR_ASSERT(grpc_call_start_write_status_old(ev->call, GRPC_STATUS_OK,
NULL, s) == GRPC_CALL_OK);
}
break;
case GRPC_FINISH_ACCEPTED:
case GRPC_FINISHED:
if (gpr_unref(&s->pending_ops)) {
grpc_call_destroy(ev->call);
gpr_free(s);
}
break;
case GRPC_QUEUE_SHUTDOWN:
GPR_ASSERT(shutdown_started);
shutdown_finished = 1;
break;
default:
GPR_ASSERT(0);
}
grpc_event_finish(ev);
}
grpc_server_destroy(server);
grpc_completion_queue_destroy(cq);
grpc_shutdown();
return 0;
}
GPR_EXPORT grpc_server *GPR_CALLTYPE
grpcsharp_server_create(const grpc_channel_args *args) {
return grpc_server_create(args, NULL);
}
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 grpc_server *create_proxy_server(const char *port,
grpc_channel_args *server_args) {
grpc_server *s = grpc_server_create(server_args, NULL);
GPR_ASSERT(grpc_server_add_insecure_http2_port(s, port));
return s;
}
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_ASSERT(argc >= 1);
fake_argv[0] = argv[0];
grpc_test_init(1, fake_argv);
grpc_init();
srand(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();
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);
server = grpc_server_create(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);
GPR_ASSERT(grpc_server_add_insecure_http2_port(server, addr));
}
grpc_server_register_completion_queue(server, cq);
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))
.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)));
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;
}