/* called when all listening endpoints have been shutdown, so no further
events will be received on them - at this point it's safe to destroy
things */
static void deactivated_all_ports(grpc_exec_ctx *exec_ctx, grpc_udp_server *s) {
/* delete ALL the things */
gpr_mu_lock(&s->mu);
GPR_ASSERT(s->shutdown);
if (s->head) {
grpc_udp_listener *sp;
for (sp = s->head; sp; sp = sp->next) {
grpc_unlink_if_unix_domain_socket(&sp->addr);
GRPC_CLOSURE_INIT(&sp->destroyed_closure, destroyed_port, s,
grpc_schedule_on_exec_ctx);
if (!sp->orphan_notified) {
/* Call the orphan_cb to signal that the FD is about to be closed and
* should no longer be used. Because at this point, all listening ports
* have been shutdown already, no need to shutdown again.*/
GRPC_CLOSURE_INIT(&sp->orphan_fd_closure, dummy_cb, sp->emfd,
grpc_schedule_on_exec_ctx);
GPR_ASSERT(sp->orphan_cb);
sp->orphan_cb(exec_ctx, sp->emfd, &sp->orphan_fd_closure,
sp->server->user_data);
}
grpc_fd_orphan(exec_ctx, sp->emfd, &sp->destroyed_closure, NULL,
false /* already_closed */, "udp_listener_shutdown");
}
gpr_mu_unlock(&s->mu);
} else {
gpr_mu_unlock(&s->mu);
finish_shutdown(exec_ctx, s);
}
}
void grpc_udp_server_start(grpc_exec_ctx *exec_ctx, grpc_udp_server *s,
grpc_pollset **pollsets, size_t pollset_count,
void *user_data) {
size_t i;
gpr_mu_lock(&s->mu);
grpc_udp_listener *sp;
GPR_ASSERT(s->active_ports == 0);
s->pollsets = pollsets;
s->user_data = user_data;
sp = s->head;
while (sp != NULL) {
for (i = 0; i < pollset_count; i++) {
grpc_pollset_add_fd(exec_ctx, pollsets[i], sp->emfd);
}
GRPC_CLOSURE_INIT(&sp->read_closure, on_read, sp,
grpc_schedule_on_exec_ctx);
grpc_fd_notify_on_read(exec_ctx, sp->emfd, &sp->read_closure);
GRPC_CLOSURE_INIT(&sp->write_closure, on_write, sp,
grpc_schedule_on_exec_ctx);
grpc_fd_notify_on_write(exec_ctx, sp->emfd, &sp->write_closure);
/* Registered for both read and write callbacks: increment active_ports
* twice to account for this, and delay free-ing of memory until both
* on_read and on_write have fired. */
s->active_ports += 2;
sp = sp->next;
}
gpr_mu_unlock(&s->mu);
}
grpc_endpoint *grpc_tcp_create(grpc_exec_ctx *exec_ctx, grpc_winsocket *socket,
grpc_channel_args *channel_args,
char *peer_string) {
grpc_resource_quota *resource_quota = grpc_resource_quota_create(NULL);
if (channel_args != NULL) {
for (size_t i = 0; i < channel_args->num_args; i++) {
if (0 == strcmp(channel_args->args[i].key, GRPC_ARG_RESOURCE_QUOTA)) {
grpc_resource_quota_unref_internal(exec_ctx, resource_quota);
resource_quota = grpc_resource_quota_ref_internal(
channel_args->args[i].value.pointer.p);
}
}
}
grpc_tcp *tcp = (grpc_tcp *)gpr_malloc(sizeof(grpc_tcp));
memset(tcp, 0, sizeof(grpc_tcp));
tcp->base.vtable = &vtable;
tcp->socket = socket;
gpr_mu_init(&tcp->mu);
gpr_ref_init(&tcp->refcount, 1);
GRPC_CLOSURE_INIT(&tcp->on_read, on_read, tcp, grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&tcp->on_write, on_write, tcp, grpc_schedule_on_exec_ctx);
tcp->peer_string = gpr_strdup(peer_string);
tcp->resource_user = grpc_resource_user_create(resource_quota, peer_string);
/* Tell network status tracking code about the new endpoint */
grpc_network_status_register_endpoint(&tcp->base);
return &tcp->base;
}
void grpc_channel_watch_connectivity_state(
grpc_channel *channel, grpc_connectivity_state last_observed_state,
gpr_timespec deadline, grpc_completion_queue *cq, void *tag) {
grpc_channel_element *client_channel_elem =
grpc_channel_stack_last_element(grpc_channel_get_channel_stack(channel));
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
state_watcher *w = (state_watcher *)gpr_malloc(sizeof(*w));
GRPC_API_TRACE(
"grpc_channel_watch_connectivity_state("
"channel=%p, last_observed_state=%d, "
"deadline=gpr_timespec { tv_sec: %" PRId64
", tv_nsec: %d, clock_type: %d }, "
"cq=%p, tag=%p)",
7, (channel, (int)last_observed_state, deadline.tv_sec, deadline.tv_nsec,
(int)deadline.clock_type, cq, tag));
GPR_ASSERT(grpc_cq_begin_op(cq, tag));
gpr_mu_init(&w->mu);
GRPC_CLOSURE_INIT(&w->on_complete, watch_complete, w,
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&w->on_timeout, timeout_complete, w,
grpc_schedule_on_exec_ctx);
w->phase = WAITING;
w->state = last_observed_state;
w->cq = cq;
w->tag = tag;
w->channel = channel;
w->error = NULL;
watcher_timer_init_arg *wa =
(watcher_timer_init_arg *)gpr_malloc(sizeof(watcher_timer_init_arg));
wa->w = w;
wa->deadline = deadline;
GRPC_CLOSURE_INIT(&w->watcher_timer_init, watcher_timer_init, wa,
grpc_schedule_on_exec_ctx);
if (client_channel_elem->filter == &grpc_client_channel_filter) {
GRPC_CHANNEL_INTERNAL_REF(channel, "watch_channel_connectivity");
grpc_client_channel_watch_connectivity_state(
&exec_ctx, client_channel_elem,
grpc_polling_entity_create_from_pollset(grpc_cq_pollset(cq)), &w->state,
&w->on_complete, &w->watcher_timer_init);
} else {
abort();
}
grpc_exec_ctx_finish(&exec_ctx);
}
/* Write as much as possible, then register notify_on_write. */
static void client_session_write(grpc_exec_ctx *exec_ctx, void *arg, /*client */
grpc_error *error) {
client *cl = arg;
int fd = grpc_fd_wrapped_fd(cl->em_fd);
ssize_t write_once = 0;
if (error != GRPC_ERROR_NONE) {
gpr_mu_lock(g_mu);
client_session_shutdown_cb(exec_ctx, arg, 1);
gpr_mu_unlock(g_mu);
return;
}
do {
write_once = write(fd, cl->write_buf, CLIENT_WRITE_BUF_SIZE);
if (write_once > 0) cl->write_bytes_total += write_once;
} while (write_once > 0);
if (errno == EAGAIN) {
gpr_mu_lock(g_mu);
if (cl->client_write_cnt < CLIENT_TOTAL_WRITE_CNT) {
GRPC_CLOSURE_INIT(&cl->write_closure, client_session_write, cl,
grpc_schedule_on_exec_ctx);
grpc_fd_notify_on_write(exec_ctx, cl->em_fd, &cl->write_closure);
cl->client_write_cnt++;
} else {
client_session_shutdown_cb(exec_ctx, arg, 1);
}
gpr_mu_unlock(g_mu);
} else {
gpr_log(GPR_ERROR, "unknown errno %s", strerror(errno));
abort();
}
}
/* Called when a new TCP connection request arrives in the listening port. */
static void listen_cb(grpc_exec_ctx *exec_ctx, void *arg, /*=sv_arg*/
grpc_error *error) {
server *sv = arg;
int fd;
int flags;
session *se;
struct sockaddr_storage ss;
socklen_t slen = sizeof(ss);
grpc_fd *listen_em_fd = sv->em_fd;
if (error != GRPC_ERROR_NONE) {
listen_shutdown_cb(exec_ctx, arg, 1);
return;
}
fd = accept(grpc_fd_wrapped_fd(listen_em_fd), (struct sockaddr *)&ss, &slen);
GPR_ASSERT(fd >= 0);
GPR_ASSERT(fd < FD_SETSIZE);
flags = fcntl(fd, F_GETFL, 0);
fcntl(fd, F_SETFL, flags | O_NONBLOCK);
se = gpr_malloc(sizeof(*se));
se->sv = sv;
se->em_fd = grpc_fd_create(fd, "listener");
grpc_pollset_add_fd(exec_ctx, g_pollset, se->em_fd);
GRPC_CLOSURE_INIT(&se->session_read_closure, session_read_cb, se,
grpc_schedule_on_exec_ctx);
grpc_fd_notify_on_read(exec_ctx, se->em_fd, &se->session_read_closure);
grpc_fd_notify_on_read(exec_ctx, listen_em_fd, &sv->listen_closure);
}
grpc_endpoint *grpc_secure_endpoint_create(
struct tsi_frame_protector *protector,
struct tsi_zero_copy_grpc_protector *zero_copy_protector,
grpc_endpoint *transport, grpc_slice *leftover_slices,
size_t leftover_nslices) {
size_t i;
secure_endpoint *ep = (secure_endpoint *)gpr_malloc(sizeof(secure_endpoint));
ep->base.vtable = &vtable;
ep->wrapped_ep = transport;
ep->protector = protector;
ep->zero_copy_protector = zero_copy_protector;
grpc_slice_buffer_init(&ep->leftover_bytes);
for (i = 0; i < leftover_nslices; i++) {
grpc_slice_buffer_add(&ep->leftover_bytes,
grpc_slice_ref_internal(leftover_slices[i]));
}
ep->write_staging_buffer = GRPC_SLICE_MALLOC(STAGING_BUFFER_SIZE);
ep->read_staging_buffer = GRPC_SLICE_MALLOC(STAGING_BUFFER_SIZE);
grpc_slice_buffer_init(&ep->output_buffer);
grpc_slice_buffer_init(&ep->source_buffer);
ep->read_buffer = NULL;
GRPC_CLOSURE_INIT(&ep->on_read, on_read, ep, grpc_schedule_on_exec_ctx);
gpr_mu_init(&ep->protector_mu);
gpr_ref_init(&ep->ref, 1);
return &ep->base;
}
static void reset_test_fd(grpc_exec_ctx *exec_ctx, test_fd *tfd) {
tfd->is_on_readable_called = false;
GRPC_CLOSURE_INIT(&tfd->on_readable, on_readable, tfd,
grpc_schedule_on_exec_ctx);
grpc_fd_notify_on_read(exec_ctx, tfd->fd, &tfd->on_readable);
}
void grpc_udp_server_destroy(grpc_exec_ctx *exec_ctx, grpc_udp_server *s,
grpc_closure *on_done) {
grpc_udp_listener *sp;
gpr_mu_lock(&s->mu);
GPR_ASSERT(!s->shutdown);
s->shutdown = 1;
s->shutdown_complete = on_done;
/* shutdown all fd's */
if (s->active_ports) {
for (sp = s->head; sp; sp = sp->next) {
GPR_ASSERT(sp->orphan_cb);
struct shutdown_fd_args *args = gpr_malloc(sizeof(*args));
args->fd = sp->emfd;
args->server_mu = &s->mu;
GRPC_CLOSURE_INIT(&sp->orphan_fd_closure, shutdown_fd, args,
grpc_schedule_on_exec_ctx);
sp->orphan_cb(exec_ctx, sp->emfd, &sp->orphan_fd_closure,
sp->server->user_data);
sp->orphan_notified = true;
}
gpr_mu_unlock(&s->mu);
} else {
gpr_mu_unlock(&s->mu);
deactivated_all_ports(exec_ctx, s);
}
}
// Constructor for call_data.
static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx,
grpc_call_element* elem,
const grpc_call_element_args* args) {
channel_data* chand = (channel_data*)elem->channel_data;
call_data* calld = (call_data*)elem->call_data;
calld->call_combiner = args->call_combiner;
calld->next_recv_message_ready = NULL;
GRPC_CLOSURE_INIT(&calld->recv_message_ready, recv_message_ready, elem,
grpc_schedule_on_exec_ctx);
// Get max sizes from channel data, then merge in per-method config values.
// Note: Per-method config is only available on the client, so we
// apply the max request size to the send limit and the max response
// size to the receive limit.
calld->limits = chand->limits;
if (chand->method_limit_table != NULL) {
message_size_limits* limits =
(message_size_limits*)grpc_method_config_table_get(
exec_ctx, chand->method_limit_table, args->path);
if (limits != NULL) {
if (limits->max_send_size >= 0 &&
(limits->max_send_size < calld->limits.max_send_size ||
calld->limits.max_send_size < 0)) {
calld->limits.max_send_size = limits->max_send_size;
}
if (limits->max_recv_size >= 0 &&
(limits->max_recv_size < calld->limits.max_recv_size ||
calld->limits.max_recv_size < 0)) {
calld->limits.max_recv_size = limits->max_recv_size;
}
}
}
return GRPC_ERROR_NONE;
}
grpc_transport_op *grpc_make_transport_op(grpc_closure *on_complete) {
made_transport_op *op = gpr_malloc(sizeof(*op));
GRPC_CLOSURE_INIT(&op->outer_on_complete, destroy_made_transport_op, op,
grpc_schedule_on_exec_ctx);
op->inner_on_complete = on_complete;
memset(&op->op, 0, sizeof(op->op));
op->op.on_consumed = &op->outer_on_complete;
return &op->op;
}
static void send_security_metadata(grpc_exec_ctx *exec_ctx,
grpc_call_element *elem,
grpc_transport_stream_op_batch *batch) {
call_data *calld = elem->call_data;
channel_data *chand = elem->channel_data;
grpc_client_security_context *ctx =
(grpc_client_security_context *)batch->payload
->context[GRPC_CONTEXT_SECURITY]
.value;
grpc_call_credentials *channel_call_creds =
chand->security_connector->request_metadata_creds;
int call_creds_has_md = (ctx != NULL) && (ctx->creds != NULL);
if (channel_call_creds == NULL && !call_creds_has_md) {
/* Skip sending metadata altogether. */
grpc_call_next_op(exec_ctx, elem, batch);
return;
}
if (channel_call_creds != NULL && call_creds_has_md) {
calld->creds = grpc_composite_call_credentials_create(channel_call_creds,
ctx->creds, NULL);
if (calld->creds == NULL) {
grpc_transport_stream_op_batch_finish_with_failure(
exec_ctx, batch,
grpc_error_set_int(
GRPC_ERROR_CREATE_FROM_STATIC_STRING(
"Incompatible credentials set on channel and call."),
GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAUTHENTICATED));
return;
}
} else {
calld->creds = grpc_call_credentials_ref(
call_creds_has_md ? ctx->creds : channel_call_creds);
}
build_auth_metadata_context(&chand->security_connector->base,
chand->auth_context, calld);
grpc_error *cancel_error = set_cancel_func(elem, cancel_get_request_metadata);
if (cancel_error != GRPC_ERROR_NONE) {
grpc_transport_stream_op_batch_finish_with_failure(exec_ctx, batch,
cancel_error);
return;
}
GPR_ASSERT(calld->pollent != NULL);
GRPC_CLOSURE_INIT(&calld->closure, on_credentials_metadata, batch,
grpc_schedule_on_exec_ctx);
grpc_error *error = GRPC_ERROR_NONE;
if (grpc_call_credentials_get_request_metadata(
exec_ctx, calld->creds, calld->pollent, calld->auth_md_context,
&calld->md_array, &calld->closure, &error)) {
// Synchronous return; invoke on_credentials_metadata() directly.
on_credentials_metadata(exec_ctx, batch, error);
GRPC_ERROR_UNREF(error);
}
}
grpc_transport_stream_op_batch *grpc_make_transport_stream_op(
grpc_closure *on_complete) {
made_transport_stream_op *op = gpr_zalloc(sizeof(*op));
op->op.payload = &op->payload;
GRPC_CLOSURE_INIT(&op->outer_on_complete, destroy_made_transport_stream_op,
op, grpc_schedule_on_exec_ctx);
op->inner_on_complete = on_complete;
op->op.on_complete = &op->outer_on_complete;
return &op->op;
}
static grpc_error *server_init_call_elem(grpc_exec_ctx *exec_ctx,
grpc_call_element *elem,
const grpc_call_element_args *args) {
call_data *d = (call_data *)elem->call_data;
GPR_ASSERT(d != NULL);
memset(d, 0, sizeof(*d));
d->start_ts = args->start_time;
/* TODO(hongyu): call census_tracing_start_op here. */
GRPC_CLOSURE_INIT(&d->finish_recv, server_on_done_recv, elem,
grpc_schedule_on_exec_ctx);
return GRPC_ERROR_NONE;
}
void grpc_stream_ref_init(grpc_stream_refcount *refcount, int initial_refs,
grpc_iomgr_cb_func cb, void *cb_arg,
const char *object_type) {
refcount->object_type = object_type;
#else
void grpc_stream_ref_init(grpc_stream_refcount *refcount, int initial_refs,
grpc_iomgr_cb_func cb, void *cb_arg) {
#endif
gpr_ref_init(&refcount->refs, initial_refs);
GRPC_CLOSURE_INIT(&refcount->destroy, cb, cb_arg, grpc_schedule_on_exec_ctx);
refcount->slice_refcount.vtable = &stream_ref_slice_vtable;
refcount->slice_refcount.sub_refcount = &refcount->slice_refcount;
}
static grpc_handshaker *security_handshaker_create(
grpc_exec_ctx *exec_ctx, tsi_handshaker *handshaker,
grpc_security_connector *connector) {
security_handshaker *h = gpr_zalloc(sizeof(security_handshaker));
grpc_handshaker_init(&security_handshaker_vtable, &h->base);
h->handshaker = handshaker;
h->connector = GRPC_SECURITY_CONNECTOR_REF(connector, "handshake");
gpr_mu_init(&h->mu);
gpr_ref_init(&h->refs, 1);
h->handshake_buffer_size = GRPC_INITIAL_HANDSHAKE_BUFFER_SIZE;
h->handshake_buffer = gpr_malloc(h->handshake_buffer_size);
GRPC_CLOSURE_INIT(&h->on_handshake_data_sent_to_peer,
on_handshake_data_sent_to_peer, h,
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&h->on_handshake_data_received_from_peer,
on_handshake_data_received_from_peer, h,
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&h->on_peer_checked, on_peer_checked, h,
grpc_schedule_on_exec_ctx);
grpc_slice_buffer_init(&h->outgoing);
return &h->base;
}
void test_succeeds(void) {
grpc_resolved_address resolved_addr;
struct sockaddr_in *addr = (struct sockaddr_in *)resolved_addr.addr;
uv_tcp_t *svr_handle = gpr_malloc(sizeof(uv_tcp_t));
int connections_complete_before;
grpc_closure done;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
gpr_log(GPR_DEBUG, "test_succeeds");
memset(&resolved_addr, 0, sizeof(resolved_addr));
resolved_addr.len = sizeof(struct sockaddr_in);
addr->sin_family = AF_INET;
/* create a dummy server */
GPR_ASSERT(0 == uv_tcp_init(uv_default_loop(), svr_handle));
GPR_ASSERT(0 == uv_tcp_bind(svr_handle, (struct sockaddr *)addr, 0));
GPR_ASSERT(0 == uv_listen((uv_stream_t *)svr_handle, 1, connection_cb));
gpr_mu_lock(g_mu);
connections_complete_before = g_connections_complete;
gpr_mu_unlock(g_mu);
/* connect to it */
GPR_ASSERT(uv_tcp_getsockname(svr_handle, (struct sockaddr *)addr,
(int *)&resolved_addr.len) == 0);
GRPC_CLOSURE_INIT(&done, must_succeed, NULL, grpc_schedule_on_exec_ctx);
grpc_tcp_client_connect(&exec_ctx, &done, &g_connecting, NULL, NULL,
&resolved_addr, gpr_inf_future(GPR_CLOCK_REALTIME));
gpr_mu_lock(g_mu);
while (g_connections_complete == connections_complete_before) {
grpc_pollset_worker *worker = NULL;
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx, g_pollset, &worker,
gpr_now(GPR_CLOCK_MONOTONIC),
grpc_timeout_seconds_to_deadline(5))));
gpr_mu_unlock(g_mu);
grpc_exec_ctx_flush(&exec_ctx);
gpr_mu_lock(g_mu);
}
// This will get cleaned up when the pollset runs again or gets shutdown
uv_close((uv_handle_t *)svr_handle, close_cb);
gpr_mu_unlock(g_mu);
grpc_exec_ctx_finish(&exec_ctx);
}
static void test_pollset_cleanup(grpc_exec_ctx *exec_ctx,
test_pollset *pollsets, int num_pollsets) {
grpc_closure destroyed;
int i;
for (i = 0; i < num_pollsets; i++) {
GRPC_CLOSURE_INIT(&destroyed, destroy_pollset, pollsets[i].pollset,
grpc_schedule_on_exec_ctx);
grpc_pollset_shutdown(exec_ctx, pollsets[i].pollset, &destroyed);
grpc_exec_ctx_flush(exec_ctx);
gpr_free(pollsets[i].pollset);
}
}
grpc_combiner *grpc_combiner_create(void) {
grpc_combiner *lock = gpr_malloc(sizeof(*lock));
gpr_ref_init(&lock->refs, 1);
lock->next_combiner_on_this_exec_ctx = NULL;
lock->time_to_execute_final_list = false;
lock->scheduler.vtable = &scheduler;
lock->finally_scheduler.vtable = &finally_scheduler;
gpr_atm_no_barrier_store(&lock->state, STATE_UNORPHANED);
gpr_mpscq_init(&lock->queue);
grpc_closure_list_init(&lock->final_list);
GRPC_CLOSURE_INIT(&lock->offload, offload, lock, grpc_executor_scheduler);
GRPC_COMBINER_TRACE(gpr_log(GPR_DEBUG, "C:%p create", lock));
return lock;
}
static void resolve_address_impl(grpc_exec_ctx *exec_ctx, const char *name,
const char *default_port,
grpc_pollset_set *interested_parties,
grpc_closure *on_done,
grpc_resolved_addresses **addresses) {
request *r = gpr_malloc(sizeof(request));
GRPC_CLOSURE_INIT(&r->request_closure, do_request_thread, r,
grpc_executor_scheduler(GRPC_EXECUTOR_SHORT));
r->name = gpr_strdup(name);
r->default_port = gpr_strdup(default_port);
r->on_done = on_done;
r->addresses = addresses;
GRPC_CLOSURE_SCHED(exec_ctx, &r->request_closure, GRPC_ERROR_NONE);
}
void args_finish(grpc_exec_ctx *exec_ctx, args_struct *args) {
GPR_ASSERT(gpr_event_wait(&args->ev, test_deadline()));
grpc_resolved_addresses_destroy(args->addrs);
grpc_pollset_set_del_pollset(exec_ctx, args->pollset_set, args->pollset);
grpc_pollset_set_destroy(exec_ctx, args->pollset_set);
grpc_closure do_nothing_cb;
GRPC_CLOSURE_INIT(&do_nothing_cb, do_nothing, NULL,
grpc_schedule_on_exec_ctx);
grpc_pollset_shutdown(exec_ctx, args->pollset, &do_nothing_cb);
// exec_ctx needs to be flushed before calling grpc_pollset_destroy()
grpc_exec_ctx_flush(exec_ctx);
grpc_pollset_destroy(exec_ctx, args->pollset);
gpr_free(args->pollset);
}
static void cleanup_test_pollsets(grpc_exec_ctx *exec_ctx,
test_pollset *pollsets,
const int num_pollsets) {
grpc_closure destroyed;
for (int i = 0; i < num_pollsets; i++) {
GRPC_CLOSURE_INIT(&destroyed, destroy_pollset, pollsets[i].ps,
grpc_schedule_on_exec_ctx);
grpc_pollset_shutdown(exec_ctx, pollsets[i].ps, &destroyed);
grpc_exec_ctx_flush(exec_ctx);
gpr_free(pollsets[i].ps);
pollsets[i].ps = NULL;
}
}
void test_fails(void) {
grpc_resolved_address resolved_addr;
struct sockaddr_in *addr = (struct sockaddr_in *)resolved_addr.addr;
int connections_complete_before;
grpc_closure done;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
gpr_log(GPR_DEBUG, "test_fails");
memset(&resolved_addr, 0, sizeof(resolved_addr));
resolved_addr.len = sizeof(struct sockaddr_in);
addr->sin_family = AF_INET;
gpr_mu_lock(g_mu);
connections_complete_before = g_connections_complete;
gpr_mu_unlock(g_mu);
/* connect to a broken address */
GRPC_CLOSURE_INIT(&done, must_fail, NULL, grpc_schedule_on_exec_ctx);
grpc_tcp_client_connect(&exec_ctx, &done, &g_connecting, NULL, NULL,
&resolved_addr, gpr_inf_future(GPR_CLOCK_REALTIME));
gpr_mu_lock(g_mu);
/* wait for the connection callback to finish */
while (g_connections_complete == connections_complete_before) {
grpc_pollset_worker *worker = NULL;
gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
gpr_timespec polling_deadline = test_deadline();
switch (grpc_timer_check(&exec_ctx, now, &polling_deadline)) {
case GRPC_TIMERS_FIRED:
break;
case GRPC_TIMERS_NOT_CHECKED:
polling_deadline = now;
/* fall through */
case GRPC_TIMERS_CHECKED_AND_EMPTY:
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_work", grpc_pollset_work(&exec_ctx, g_pollset, &worker,
now, polling_deadline)));
break;
}
gpr_mu_unlock(g_mu);
grpc_exec_ctx_flush(&exec_ctx);
gpr_mu_lock(g_mu);
}
gpr_mu_unlock(g_mu);
grpc_exec_ctx_finish(&exec_ctx);
}
grpc_alarm *grpc_alarm_create(void *reserved) {
grpc_alarm *alarm = (grpc_alarm *)gpr_malloc(sizeof(grpc_alarm));
#ifndef NDEBUG
if (GRPC_TRACER_ON(grpc_trace_alarm_refcount)) {
gpr_log(GPR_DEBUG, "Alarm:%p created (ref: 1)", alarm);
}
#endif
gpr_ref_init(&alarm->refs, 1);
grpc_timer_init_unset(&alarm->alarm);
alarm->cq = NULL;
GRPC_CLOSURE_INIT(&alarm->on_alarm, alarm_cb, alarm,
grpc_schedule_on_exec_ctx);
return alarm;
}
// Returns an error if the call has been cancelled. Otherwise, sets the
// cancellation function to be called upon cancellation.
static grpc_error *set_cancel_func(grpc_call_element *elem,
grpc_iomgr_cb_func func) {
call_data *calld = (call_data *)elem->call_data;
// Decode original state.
gpr_atm original_state = gpr_atm_acq_load(&calld->cancellation_state);
grpc_error *original_error = GRPC_ERROR_NONE;
grpc_closure *original_func = NULL;
decode_cancel_state(original_state, &original_func, &original_error);
// If error is set, return it.
if (original_error != GRPC_ERROR_NONE) return GRPC_ERROR_REF(original_error);
// Otherwise, store func.
GRPC_CLOSURE_INIT(&calld->cancel_closure, func, elem,
grpc_schedule_on_exec_ctx);
GPR_ASSERT(((gpr_atm)&calld->cancel_closure & (gpr_atm)1) == 0);
gpr_atm_rel_store(&calld->cancellation_state,
(gpr_atm)&calld->cancel_closure);
return GRPC_ERROR_NONE;
}
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);
}
void grpc_inproc_transport_init(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
GRPC_CLOSURE_INIT(&do_nothing_closure, do_nothing, NULL,
grpc_schedule_on_exec_ctx);
g_empty_slice = grpc_slice_from_static_buffer(NULL, 0);
grpc_slice key_tmp = grpc_slice_from_static_string(":path");
g_fake_path_key = grpc_slice_intern(key_tmp);
grpc_slice_unref_internal(&exec_ctx, key_tmp);
g_fake_path_value = grpc_slice_from_static_string("/");
grpc_slice auth_tmp = grpc_slice_from_static_string(":authority");
g_fake_auth_key = grpc_slice_intern(auth_tmp);
grpc_slice_unref_internal(&exec_ctx, auth_tmp);
g_fake_auth_value = grpc_slice_from_static_string("inproc-fail");
grpc_exec_ctx_finish(&exec_ctx);
}
int main(int argc, char **argv) {
grpc_closure destroyed;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_test_init(argc, argv);
grpc_init();
g_pollset = gpr_malloc(grpc_pollset_size());
grpc_pollset_init(g_pollset, &g_mu);
grpc_exec_ctx_finish(&exec_ctx);
test_succeeds();
gpr_log(GPR_ERROR, "End of first test");
test_fails();
GRPC_CLOSURE_INIT(&destroyed, destroy_pollset, g_pollset,
grpc_schedule_on_exec_ctx);
grpc_pollset_shutdown(&exec_ctx, g_pollset, &destroyed);
grpc_exec_ctx_finish(&exec_ctx);
grpc_shutdown();
gpr_free(g_pollset);
return 0;
}
void grpc_channel_ping(grpc_channel *channel, grpc_completion_queue *cq,
void *tag, void *reserved) {
GRPC_API_TRACE("grpc_channel_ping(channel=%p, cq=%p, tag=%p, reserved=%p)", 4,
(channel, cq, tag, reserved));
grpc_transport_op *op = grpc_make_transport_op(NULL);
ping_result *pr = (ping_result *)gpr_malloc(sizeof(*pr));
grpc_channel_element *top_elem =
grpc_channel_stack_element(grpc_channel_get_channel_stack(channel), 0);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
GPR_ASSERT(reserved == NULL);
pr->tag = tag;
pr->cq = cq;
GRPC_CLOSURE_INIT(&pr->closure, ping_done, pr, grpc_schedule_on_exec_ctx);
op->send_ping = &pr->closure;
op->bind_pollset = grpc_cq_pollset(cq);
GPR_ASSERT(grpc_cq_begin_op(cq, tag));
top_elem->filter->start_transport_op(&exec_ctx, top_elem, op);
grpc_exec_ctx_finish(&exec_ctx);
}
int main(int argc, char **argv) {
grpc_closure destroyed;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_test_init(argc, argv);
grpc_iomgr_init(&exec_ctx);
grpc_iomgr_start(&exec_ctx);
g_pollset = gpr_zalloc(grpc_pollset_size());
grpc_pollset_init(g_pollset, &g_mu);
test_grpc_fd();
test_grpc_fd_change();
GRPC_CLOSURE_INIT(&destroyed, destroy_pollset, g_pollset,
grpc_schedule_on_exec_ctx);
grpc_pollset_shutdown(&exec_ctx, g_pollset, &destroyed);
grpc_exec_ctx_flush(&exec_ctx);
gpr_free(g_pollset);
grpc_iomgr_shutdown(&exec_ctx);
grpc_exec_ctx_finish(&exec_ctx);
return 0;
}