int main(int argc, char **argv) {
int result = 0;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
synchronizer sync;
grpc_channel_credentials *creds = NULL;
char *service_url = "https://test.foo.google.com/Foo";
grpc_auth_metadata_context context;
gpr_cmdline *cl = gpr_cmdline_create("print_google_default_creds_token");
gpr_cmdline_add_string(cl, "service_url",
"Service URL for the token request.", &service_url);
gpr_cmdline_parse(cl, argc, argv);
memset(&context, 0, sizeof(context));
context.service_url = service_url;
grpc_init();
creds = grpc_google_default_credentials_create();
if (creds == NULL) {
fprintf(stderr, "\nCould not find default credentials.\n\n");
result = 1;
goto end;
}
grpc_pollset *pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(pollset, &sync.mu);
sync.pops = grpc_polling_entity_create_from_pollset(pollset);
sync.is_done = 0;
grpc_call_credentials_get_request_metadata(
&exec_ctx, ((grpc_composite_channel_credentials *)creds)->call_creds,
&sync.pops, context, on_metadata_response, &sync);
gpr_mu_lock(sync.mu);
while (!sync.is_done) {
grpc_pollset_worker *worker = NULL;
if (!GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx,
grpc_polling_entity_pollset(&sync.pops), &worker,
gpr_now(GPR_CLOCK_MONOTONIC),
gpr_inf_future(GPR_CLOCK_MONOTONIC))))
sync.is_done = 1;
gpr_mu_unlock(sync.mu);
grpc_exec_ctx_flush(&exec_ctx);
gpr_mu_lock(sync.mu);
}
gpr_mu_unlock(sync.mu);
grpc_exec_ctx_finish(&exec_ctx);
grpc_channel_credentials_release(creds);
gpr_free(grpc_polling_entity_pollset(&sync.pops));
end:
gpr_cmdline_destroy(cl);
grpc_shutdown();
return result;
}
void grpc_free_port_using_server(char *server, int port) {
grpc_httpcli_context context;
grpc_httpcli_request req;
grpc_httpcli_response rsp;
freereq pr;
char *path;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_closure *shutdown_closure;
grpc_init();
memset(&pr, 0, sizeof(pr));
memset(&req, 0, sizeof(req));
memset(&rsp, 0, sizeof(rsp));
grpc_pollset *pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(pollset, &pr.mu);
pr.pops = grpc_polling_entity_create_from_pollset(pollset);
shutdown_closure = grpc_closure_create(destroy_pops_and_shutdown, &pr.pops);
req.host = server;
gpr_asprintf(&path, "/drop/%d", port);
req.http.path = path;
grpc_httpcli_context_init(&context);
grpc_resource_quota *resource_quota =
grpc_resource_quota_create("port_server_client/free");
grpc_httpcli_get(&exec_ctx, &context, &pr.pops, resource_quota, &req,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10),
grpc_closure_create(freed_port_from_server, &pr), &rsp);
grpc_resource_quota_internal_unref(&exec_ctx, resource_quota);
gpr_mu_lock(pr.mu);
while (!pr.done) {
grpc_pollset_worker *worker = NULL;
if (!GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx, grpc_polling_entity_pollset(&pr.pops),
&worker, gpr_now(GPR_CLOCK_MONOTONIC),
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1)))) {
pr.done = 1;
}
}
gpr_mu_unlock(pr.mu);
grpc_httpcli_context_destroy(&context);
grpc_exec_ctx_finish(&exec_ctx);
grpc_pollset_shutdown(&exec_ctx, grpc_polling_entity_pollset(&pr.pops),
shutdown_closure);
grpc_exec_ctx_finish(&exec_ctx);
gpr_free(path);
grpc_http_response_destroy(&rsp);
}
int grpc_pick_port_using_server(char *server) {
grpc_httpcli_context context;
grpc_httpcli_request req;
portreq pr;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_closure *shutdown_closure;
grpc_init();
memset(&pr, 0, sizeof(pr));
memset(&req, 0, sizeof(req));
grpc_pollset *pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(pollset, &pr.mu);
pr.pops = grpc_polling_entity_create_from_pollset(pollset);
shutdown_closure = grpc_closure_create(destroy_pops_and_shutdown, &pr.pops);
pr.port = -1;
pr.server = server;
pr.ctx = &context;
req.host = server;
req.http.path = "/get";
grpc_httpcli_context_init(&context);
grpc_resource_quota *resource_quota =
grpc_resource_quota_create("port_server_client/pick");
grpc_httpcli_get(&exec_ctx, &context, &pr.pops, resource_quota, &req,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10),
grpc_closure_create(got_port_from_server, &pr),
&pr.response);
grpc_resource_quota_internal_unref(&exec_ctx, resource_quota);
grpc_exec_ctx_finish(&exec_ctx);
gpr_mu_lock(pr.mu);
while (pr.port == -1) {
grpc_pollset_worker *worker = NULL;
if (!GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx, grpc_polling_entity_pollset(&pr.pops),
&worker, gpr_now(GPR_CLOCK_MONOTONIC),
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1)))) {
pr.port = 0;
}
}
gpr_mu_unlock(pr.mu);
grpc_http_response_destroy(&pr.response);
grpc_httpcli_context_destroy(&context);
grpc_pollset_shutdown(&exec_ctx, grpc_polling_entity_pollset(&pr.pops),
shutdown_closure);
grpc_exec_ctx_finish(&exec_ctx);
return pr.port;
}
static void on_oauth2_response(grpc_exec_ctx *exec_ctx, void *user_data,
grpc_credentials_md *md_elems, size_t num_md,
grpc_credentials_status status,
const char *error_details) {
oauth2_request *request = user_data;
char *token = NULL;
gpr_slice token_slice;
if (status == GRPC_CREDENTIALS_ERROR) {
gpr_log(GPR_ERROR, "Fetching token failed.");
} else {
GPR_ASSERT(num_md == 1);
token_slice = md_elems[0].value;
token = gpr_malloc(GPR_SLICE_LENGTH(token_slice) + 1);
memcpy(token, GPR_SLICE_START_PTR(token_slice),
GPR_SLICE_LENGTH(token_slice));
token[GPR_SLICE_LENGTH(token_slice)] = '\0';
}
gpr_mu_lock(request->mu);
request->is_done = 1;
request->token = token;
GRPC_LOG_IF_ERROR(
"pollset_kick",
grpc_pollset_kick(grpc_polling_entity_pollset(&request->pops), NULL));
gpr_mu_unlock(request->mu);
}
static void destroy_pops_and_shutdown(grpc_exec_ctx *exec_ctx, void *p,
bool success) {
grpc_pollset *pollset = grpc_polling_entity_pollset(p);
grpc_pollset_destroy(pollset);
gpr_free(pollset);
grpc_shutdown();
}
static void on_compute_engine_detection_http_response(grpc_exec_ctx *exec_ctx,
void *user_data,
grpc_error *error) {
compute_engine_detector *detector = (compute_engine_detector *)user_data;
if (error == GRPC_ERROR_NONE && detector->response.status == 200 &&
detector->response.hdr_count > 0) {
/* Internet providers can return a generic response to all requests, so
it is necessary to check that metadata header is present also. */
size_t i;
for (i = 0; i < detector->response.hdr_count; i++) {
grpc_http_header *header = &detector->response.hdrs[i];
if (strcmp(header->key, "Metadata-Flavor") == 0 &&
strcmp(header->value, "Google") == 0) {
detector->success = 1;
break;
}
}
}
gpr_mu_lock(g_polling_mu);
detector->is_done = 1;
GRPC_LOG_IF_ERROR(
"Pollset kick",
grpc_pollset_kick(grpc_polling_entity_pollset(&detector->pollent), NULL));
gpr_mu_unlock(g_polling_mu);
}
static void freed_port_from_server(grpc_exec_ctx *exec_ctx, void *arg,
const grpc_httpcli_response *response) {
freereq *pr = arg;
gpr_mu_lock(pr->mu);
pr->done = 1;
grpc_pollset_kick(grpc_polling_entity_pollset(&pr->pops), NULL);
gpr_mu_unlock(pr->mu);
}
static void got_port_from_server(grpc_exec_ctx *exec_ctx, void *arg,
grpc_error *error) {
size_t i;
int port = 0;
portreq *pr = arg;
int failed = 0;
grpc_httpcli_response *response = &pr->response;
if (error != GRPC_ERROR_NONE) {
failed = 1;
const char *msg = grpc_error_string(error);
gpr_log(GPR_DEBUG, "failed port pick from server: retrying [%s]", msg);
grpc_error_free_string(msg);
} else if (response->status != 200) {
failed = 1;
gpr_log(GPR_DEBUG, "failed port pick from server: status=%d",
response->status);
}
if (failed) {
grpc_httpcli_request req;
memset(&req, 0, sizeof(req));
GPR_ASSERT(pr->retries < 10);
gpr_sleep_until(gpr_time_add(
gpr_now(GPR_CLOCK_REALTIME),
gpr_time_from_millis(
(int64_t)(1000.0 * (1 + pow(1.3, pr->retries) * rand() / RAND_MAX)),
GPR_TIMESPAN)));
pr->retries++;
req.host = pr->server;
req.http.path = "/get";
grpc_http_response_destroy(&pr->response);
memset(&pr->response, 0, sizeof(pr->response));
grpc_resource_quota *resource_quota =
grpc_resource_quota_create("port_server_client/pick_retry");
grpc_httpcli_get(exec_ctx, pr->ctx, &pr->pops, resource_quota, &req,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10),
grpc_closure_create(got_port_from_server, pr),
&pr->response);
grpc_resource_quota_internal_unref(exec_ctx, resource_quota);
return;
}
GPR_ASSERT(response);
GPR_ASSERT(response->status == 200);
for (i = 0; i < response->body_length; i++) {
GPR_ASSERT(response->body[i] >= '0' && response->body[i] <= '9');
port = port * 10 + response->body[i] - '0';
}
GPR_ASSERT(port > 1024);
gpr_mu_lock(pr->mu);
pr->port = port;
GRPC_LOG_IF_ERROR(
"pollset_kick",
grpc_pollset_kick(grpc_polling_entity_pollset(&pr->pops), NULL));
gpr_mu_unlock(pr->mu);
}
static void freed_port_from_server(grpc_exec_ctx *exec_ctx, void *arg,
grpc_error *error) {
freereq *pr = arg;
gpr_mu_lock(pr->mu);
pr->done = 1;
GRPC_LOG_IF_ERROR(
"pollset_kick",
grpc_pollset_kick(grpc_polling_entity_pollset(&pr->pops), NULL));
gpr_mu_unlock(pr->mu);
}
char *grpc_test_fetch_oauth2_token_with_credentials(
grpc_call_credentials *creds) {
oauth2_request request;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_closure do_nothing_closure;
grpc_auth_metadata_context null_ctx = {"", "", NULL, NULL};
grpc_pollset *pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(pollset, &request.mu);
request.pops = grpc_polling_entity_create_from_pollset(pollset);
request.is_done = 0;
grpc_closure_init(&do_nothing_closure, do_nothing, NULL);
grpc_call_credentials_get_request_metadata(
&exec_ctx, creds, &request.pops, null_ctx, on_oauth2_response, &request);
grpc_exec_ctx_finish(&exec_ctx);
gpr_mu_lock(request.mu);
while (!request.is_done) {
grpc_pollset_worker *worker = NULL;
if (!GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx,
grpc_polling_entity_pollset(&request.pops),
&worker, gpr_now(GPR_CLOCK_MONOTONIC),
gpr_inf_future(GPR_CLOCK_MONOTONIC)))) {
request.is_done = 1;
}
}
gpr_mu_unlock(request.mu);
grpc_pollset_shutdown(&exec_ctx, grpc_polling_entity_pollset(&request.pops),
&do_nothing_closure);
grpc_exec_ctx_finish(&exec_ctx);
gpr_free(grpc_polling_entity_pollset(&request.pops));
return request.token;
}
void grpc_transport_set_pops(grpc_exec_ctx *exec_ctx, grpc_transport *transport,
grpc_stream *stream,
grpc_polling_entity *pollent) {
grpc_pollset *pollset;
grpc_pollset_set *pollset_set;
if ((pollset = grpc_polling_entity_pollset(pollent)) != NULL) {
transport->vtable->set_pollset(exec_ctx, transport, stream, pollset);
} else if ((pollset_set = grpc_polling_entity_pollset_set(pollent)) != NULL) {
transport->vtable->set_pollset_set(exec_ctx, transport, stream,
pollset_set);
} else {
abort();
}
}
static void on_finish(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
const char *expect =
"<html><head><title>Hello world!</title></head>"
"<body><p>This is a test</p></body></html>";
grpc_http_response *response = arg;
GPR_ASSERT(response);
GPR_ASSERT(response->status == 200);
GPR_ASSERT(response->body_length == strlen(expect));
GPR_ASSERT(0 == memcmp(expect, response->body, response->body_length));
gpr_mu_lock(g_mu);
g_done = 1;
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_kick",
grpc_pollset_kick(grpc_polling_entity_pollset(&g_pops), NULL)));
gpr_mu_unlock(g_mu);
}
static void got_port_from_server(grpc_exec_ctx *exec_ctx, void *arg,
const grpc_httpcli_response *response) {
size_t i;
int port = 0;
portreq *pr = arg;
int failed = 0;
if (!response) {
failed = 1;
gpr_log(GPR_DEBUG,
"failed port pick from server: retrying [response=NULL]");
} else if (response->status != 200) {
failed = 1;
gpr_log(GPR_DEBUG, "failed port pick from server: status=%d",
response->status);
}
if (failed) {
grpc_httpcli_request req;
memset(&req, 0, sizeof(req));
GPR_ASSERT(pr->retries < 10);
gpr_sleep_until(gpr_time_add(
gpr_now(GPR_CLOCK_REALTIME),
gpr_time_from_millis(
(int64_t)(1000.0 * (1 + pow(1.3, pr->retries) * rand() / RAND_MAX)),
GPR_TIMESPAN)));
pr->retries++;
req.host = pr->server;
req.http.path = "/get";
grpc_httpcli_get(exec_ctx, pr->ctx, &pr->pops, &req,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10), got_port_from_server,
pr);
return;
}
GPR_ASSERT(response);
GPR_ASSERT(response->status == 200);
for (i = 0; i < response->body_length; i++) {
GPR_ASSERT(response->body[i] >= '0' && response->body[i] <= '9');
port = port * 10 + response->body[i] - '0';
}
GPR_ASSERT(port > 1024);
gpr_mu_lock(pr->mu);
pr->port = port;
grpc_pollset_kick(grpc_polling_entity_pollset(&pr->pops), NULL);
gpr_mu_unlock(pr->mu);
}
static void test_post(int port) {
grpc_httpcli_request req;
char *host;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
g_done = 0;
gpr_log(GPR_INFO, "test_post");
gpr_asprintf(&host, "localhost:%d", port);
gpr_log(GPR_INFO, "posting to %s", host);
memset(&req, 0, sizeof(req));
req.host = host;
req.ssl_host_override = "foo.test.google.fr";
req.http.path = "/post";
req.handshaker = &grpc_httpcli_ssl;
grpc_http_response response;
memset(&response, 0, sizeof(response));
grpc_resource_quota *resource_quota = grpc_resource_quota_create("test_post");
grpc_httpcli_post(
&exec_ctx, &g_context, &g_pops, resource_quota, &req, "hello", 5,
n_seconds_time(15),
grpc_closure_create(on_finish, &response, grpc_schedule_on_exec_ctx),
&response);
grpc_resource_quota_unref_internal(&exec_ctx, resource_quota);
gpr_mu_lock(g_mu);
while (!g_done) {
grpc_pollset_worker *worker = NULL;
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx, grpc_polling_entity_pollset(&g_pops),
&worker, gpr_now(GPR_CLOCK_MONOTONIC),
n_seconds_time(20))));
gpr_mu_unlock(g_mu);
grpc_exec_ctx_finish(&exec_ctx);
gpr_mu_lock(g_mu);
}
gpr_mu_unlock(g_mu);
gpr_free(host);
grpc_http_response_destroy(&response);
}
static void on_metadata_response(grpc_exec_ctx *exec_ctx, void *user_data,
grpc_credentials_md *md_elems, size_t num_md,
grpc_credentials_status status,
const char *error_details) {
synchronizer *sync = user_data;
if (status == GRPC_CREDENTIALS_ERROR) {
fprintf(stderr, "Fetching token failed.\n");
} else {
char *token;
GPR_ASSERT(num_md == 1);
token = grpc_dump_slice(md_elems[0].value, GPR_DUMP_ASCII);
printf("\nGot token: %s\n\n", token);
gpr_free(token);
}
gpr_mu_lock(sync->mu);
sync->is_done = 1;
GRPC_LOG_IF_ERROR(
"pollset_kick",
grpc_pollset_kick(grpc_polling_entity_pollset(&sync->pops), NULL));
gpr_mu_unlock(sync->mu);
}
static void test_get(int port) {
grpc_httpcli_request req;
char *host;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
g_done = 0;
gpr_log(GPR_INFO, "test_get");
gpr_asprintf(&host, "localhost:%d", port);
gpr_log(GPR_INFO, "requesting from %s", host);
memset(&req, 0, sizeof(req));
req.host = host;
req.http.path = "/get";
req.handshaker = &grpc_httpcli_plaintext;
grpc_http_response response;
memset(&response, 0, sizeof(response));
grpc_httpcli_get(&exec_ctx, &g_context, &g_pops, &req, n_seconds_time(15),
grpc_closure_create(on_finish, &response), &response);
gpr_mu_lock(g_mu);
while (!g_done) {
grpc_pollset_worker *worker = NULL;
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx, grpc_polling_entity_pollset(&g_pops),
&worker, gpr_now(GPR_CLOCK_MONOTONIC),
n_seconds_time(20))));
gpr_mu_unlock(g_mu);
grpc_exec_ctx_finish(&exec_ctx);
gpr_mu_lock(g_mu);
}
gpr_mu_unlock(g_mu);
gpr_free(host);
grpc_http_response_destroy(&response);
}
static int is_stack_running_on_compute_engine(grpc_exec_ctx *exec_ctx) {
compute_engine_detector detector;
grpc_httpcli_request request;
grpc_httpcli_context context;
grpc_closure destroy_closure;
/* The http call is local. If it takes more than one sec, it is for sure not
on compute engine. */
gpr_timespec max_detection_delay = gpr_time_from_seconds(1, GPR_TIMESPAN);
grpc_pollset *pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(pollset, &g_polling_mu);
detector.pollent = grpc_polling_entity_create_from_pollset(pollset);
detector.is_done = 0;
detector.success = 0;
memset(&detector.response, 0, sizeof(detector.response));
memset(&request, 0, sizeof(grpc_httpcli_request));
request.host = GRPC_COMPUTE_ENGINE_DETECTION_HOST;
request.http.path = "/";
grpc_httpcli_context_init(&context);
grpc_resource_quota *resource_quota =
grpc_resource_quota_create("google_default_credentials");
grpc_httpcli_get(
exec_ctx, &context, &detector.pollent, resource_quota, &request,
gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), max_detection_delay),
grpc_closure_create(on_compute_engine_detection_http_response, &detector,
grpc_schedule_on_exec_ctx),
&detector.response);
grpc_resource_quota_unref_internal(exec_ctx, resource_quota);
grpc_exec_ctx_flush(exec_ctx);
/* Block until we get the response. This is not ideal but this should only be
called once for the lifetime of the process by the default credentials. */
gpr_mu_lock(g_polling_mu);
while (!detector.is_done) {
grpc_pollset_worker *worker = NULL;
if (!GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(exec_ctx,
grpc_polling_entity_pollset(&detector.pollent),
&worker, gpr_now(GPR_CLOCK_MONOTONIC),
gpr_inf_future(GPR_CLOCK_MONOTONIC)))) {
detector.is_done = 1;
detector.success = 0;
}
}
gpr_mu_unlock(g_polling_mu);
grpc_httpcli_context_destroy(exec_ctx, &context);
grpc_closure_init(&destroy_closure, destroy_pollset,
grpc_polling_entity_pollset(&detector.pollent),
grpc_schedule_on_exec_ctx);
grpc_pollset_shutdown(exec_ctx,
grpc_polling_entity_pollset(&detector.pollent),
&destroy_closure);
g_polling_mu = NULL;
grpc_exec_ctx_flush(exec_ctx);
gpr_free(grpc_polling_entity_pollset(&detector.pollent));
grpc_http_response_destroy(&detector.response);
return detector.success;
}
int main(int argc, char **argv) {
grpc_closure destroyed;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
gpr_subprocess *server;
char *me = argv[0];
char *lslash = strrchr(me, '/');
char *args[5];
int port = grpc_pick_unused_port_or_die();
int arg_shift = 0;
/* figure out where we are */
char *root;
if (lslash) {
root = gpr_malloc((size_t)(lslash - me + 1));
memcpy(root, me, (size_t)(lslash - me));
root[lslash - me] = 0;
} else {
root = gpr_strdup(".");
}
GPR_ASSERT(argc <= 2);
if (argc == 2) {
args[0] = gpr_strdup(argv[1]);
} else {
arg_shift = 1;
gpr_asprintf(&args[0], "%s/../../tools/distrib/python_wrapper.sh", root);
gpr_asprintf(&args[1], "%s/../../test/core/http/test_server.py", root);
}
/* start the server */
args[1 + arg_shift] = "--port";
gpr_asprintf(&args[2 + arg_shift], "%d", port);
args[3 + arg_shift] = "--ssl";
server = gpr_subprocess_create(4 + arg_shift, (const char **)args);
GPR_ASSERT(server);
gpr_free(args[0]);
if (arg_shift) gpr_free(args[1]);
gpr_free(args[2 + arg_shift]);
gpr_free(root);
gpr_sleep_until(gpr_time_add(gpr_now(GPR_CLOCK_REALTIME),
gpr_time_from_seconds(5, GPR_TIMESPAN)));
grpc_test_init(argc, argv);
grpc_init();
grpc_httpcli_context_init(&g_context);
grpc_pollset *pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(pollset, &g_mu);
g_pops = grpc_polling_entity_create_from_pollset(pollset);
test_get(port);
test_post(port);
grpc_httpcli_context_destroy(&g_context);
grpc_closure_init(&destroyed, destroy_pops, &g_pops);
grpc_pollset_shutdown(&exec_ctx, grpc_polling_entity_pollset(&g_pops),
&destroyed);
grpc_exec_ctx_finish(&exec_ctx);
grpc_shutdown();
gpr_free(grpc_polling_entity_pollset(&g_pops));
gpr_subprocess_destroy(server);
return 0;
}
static void destroy_pops(grpc_exec_ctx *exec_ctx, void *p, grpc_error *error) {
grpc_pollset_destroy(grpc_polling_entity_pollset(p));
}