static void destroy(grpc_exec_ctx *exec_ctx, secure_endpoint *secure_ep) {
secure_endpoint *ep = secure_ep;
grpc_endpoint_destroy(exec_ctx, ep->wrapped_ep);
tsi_frame_protector_destroy(ep->protector);
grpc_slice_buffer_destroy_internal(exec_ctx, &ep->leftover_bytes);
grpc_slice_unref_internal(exec_ctx, ep->read_staging_buffer);
grpc_slice_unref_internal(exec_ctx, ep->write_staging_buffer);
grpc_slice_buffer_destroy_internal(exec_ctx, &ep->output_buffer);
grpc_slice_buffer_destroy_internal(exec_ctx, &ep->source_buffer);
gpr_mu_destroy(&ep->protector_mu);
gpr_free(ep);
}
static void me_destroy(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep) {
passthru_endpoint *p = ((half *)ep)->parent;
gpr_mu_lock(&p->mu);
if (0 == --p->halves) {
gpr_mu_unlock(&p->mu);
gpr_mu_destroy(&p->mu);
grpc_slice_buffer_destroy_internal(exec_ctx, &p->client.read_buffer);
grpc_slice_buffer_destroy_internal(exec_ctx, &p->server.read_buffer);
grpc_resource_user_unref(exec_ctx, p->client.resource_user);
grpc_resource_user_unref(exec_ctx, p->server.resource_user);
gpr_free(p);
} else {
gpr_mu_unlock(&p->mu);
}
}
static void test_one_slice(void) {
gpr_log(GPR_INFO, "** test_one_slice **");
grpc_resource_quota *q = grpc_resource_quota_create("test_one_slice");
grpc_resource_quota_resize(q, 1024);
grpc_resource_user *usr = grpc_resource_user_create(q, "usr");
grpc_resource_user_slice_allocator alloc;
int num_allocs = 0;
grpc_resource_user_slice_allocator_init(&alloc, usr, inc_int_cb, &num_allocs);
grpc_slice_buffer buffer;
grpc_slice_buffer_init(&buffer);
{
const int start_allocs = num_allocs;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_resource_user_alloc_slices(&exec_ctx, &alloc, 1024, 1, &buffer);
grpc_exec_ctx_finish(&exec_ctx);
GPR_ASSERT(num_allocs == start_allocs + 1);
}
{
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_slice_buffer_destroy_internal(&exec_ctx, &buffer);
grpc_exec_ctx_finish(&exec_ctx);
}
destroy_user(usr);
grpc_resource_quota_unref(q);
}
static void test_leftover(grpc_endpoint_test_config config, size_t slice_size) {
grpc_endpoint_test_fixture f = config.create_fixture(slice_size);
grpc_slice_buffer incoming;
grpc_slice s =
grpc_slice_from_copied_string("hello world 12345678900987654321");
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
int n = 0;
grpc_closure done_closure;
gpr_log(GPR_INFO, "Start test left over");
grpc_slice_buffer_init(&incoming);
grpc_closure_init(&done_closure, inc_call_ctr, &n, grpc_schedule_on_exec_ctx);
grpc_endpoint_read(&exec_ctx, f.client_ep, &incoming, &done_closure);
grpc_exec_ctx_finish(&exec_ctx);
GPR_ASSERT(n == 1);
GPR_ASSERT(incoming.count == 1);
GPR_ASSERT(grpc_slice_eq(s, incoming.slices[0]));
grpc_endpoint_shutdown(&exec_ctx, f.client_ep,
GRPC_ERROR_CREATE("test_leftover end"));
grpc_endpoint_shutdown(&exec_ctx, f.server_ep,
GRPC_ERROR_CREATE("test_leftover end"));
grpc_endpoint_destroy(&exec_ctx, f.client_ep);
grpc_endpoint_destroy(&exec_ctx, f.server_ep);
grpc_exec_ctx_finish(&exec_ctx);
grpc_slice_unref_internal(&exec_ctx, s);
grpc_slice_buffer_destroy_internal(&exec_ctx, &incoming);
clean_up();
}
/* Write to a socket using the grpc_tcp API, then drain it directly.
Note that if the write does not complete immediately we need to drain the
socket in parallel with the read. */
static void write_test(size_t num_bytes, size_t slice_size) {
int sv[2];
grpc_endpoint *ep;
struct write_socket_state state;
size_t num_blocks;
grpc_slice *slices;
uint8_t current_data = 0;
grpc_slice_buffer outgoing;
grpc_closure write_done_closure;
gpr_timespec deadline = grpc_timeout_seconds_to_deadline(20);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
gpr_log(GPR_INFO,
"Start write test with %" PRIuPTR " bytes, slice size %" PRIuPTR,
num_bytes, slice_size);
create_sockets(sv);
grpc_resource_quota *resource_quota =
grpc_resource_quota_create("write_test");
ep = grpc_tcp_create(grpc_fd_create(sv[1], "write_test"), resource_quota,
GRPC_TCP_DEFAULT_READ_SLICE_SIZE, "test");
grpc_resource_quota_unref_internal(&exec_ctx, resource_quota);
grpc_endpoint_add_to_pollset(&exec_ctx, ep, g_pollset);
state.ep = ep;
state.write_done = 0;
slices = allocate_blocks(num_bytes, slice_size, &num_blocks, ¤t_data);
grpc_slice_buffer_init(&outgoing);
grpc_slice_buffer_addn(&outgoing, slices, num_blocks);
grpc_closure_init(&write_done_closure, write_done, &state,
grpc_schedule_on_exec_ctx);
grpc_endpoint_write(&exec_ctx, ep, &outgoing, &write_done_closure);
drain_socket_blocking(sv[0], num_bytes, num_bytes);
gpr_mu_lock(g_mu);
for (;;) {
grpc_pollset_worker *worker = NULL;
if (state.write_done) {
break;
}
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx, g_pollset, &worker,
gpr_now(GPR_CLOCK_MONOTONIC), deadline)));
gpr_mu_unlock(g_mu);
grpc_exec_ctx_finish(&exec_ctx);
gpr_mu_lock(g_mu);
}
gpr_mu_unlock(g_mu);
grpc_slice_buffer_destroy_internal(&exec_ctx, &outgoing);
grpc_endpoint_destroy(&exec_ctx, ep);
gpr_free(slices);
grpc_exec_ctx_finish(&exec_ctx);
}
// Unref and clean up handshaker.
static void http_connect_handshaker_unref(grpc_exec_ctx* exec_ctx,
http_connect_handshaker* handshaker) {
if (gpr_unref(&handshaker->refcount)) {
gpr_mu_destroy(&handshaker->mu);
if (handshaker->endpoint_to_destroy != NULL) {
grpc_endpoint_destroy(exec_ctx, handshaker->endpoint_to_destroy);
}
if (handshaker->read_buffer_to_destroy != NULL) {
grpc_slice_buffer_destroy_internal(exec_ctx,
handshaker->read_buffer_to_destroy);
gpr_free(handshaker->read_buffer_to_destroy);
}
grpc_slice_buffer_destroy_internal(exec_ctx, &handshaker->write_buffer);
grpc_http_parser_destroy(&handshaker->http_parser);
grpc_http_response_destroy(&handshaker->http_response);
gpr_free(handshaker);
}
}
static void security_handshaker_unref(grpc_exec_ctx *exec_ctx,
security_handshaker *h) {
if (gpr_unref(&h->refs)) {
gpr_mu_destroy(&h->mu);
tsi_handshaker_destroy(h->handshaker);
tsi_handshaker_result_destroy(h->handshaker_result);
if (h->endpoint_to_destroy != NULL) {
grpc_endpoint_destroy(exec_ctx, h->endpoint_to_destroy);
}
if (h->read_buffer_to_destroy != NULL) {
grpc_slice_buffer_destroy_internal(exec_ctx, h->read_buffer_to_destroy);
gpr_free(h->read_buffer_to_destroy);
}
gpr_free(h->handshake_buffer);
grpc_slice_buffer_destroy_internal(exec_ctx, &h->outgoing);
GRPC_AUTH_CONTEXT_UNREF(h->auth_context, "handshake");
GRPC_SECURITY_CONNECTOR_UNREF(exec_ctx, h->connector, "handshake");
gpr_free(h);
}
}
void grpc_byte_buffer_destroy(grpc_byte_buffer *bb) {
if (!bb) return;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
switch (bb->type) {
case GRPC_BB_RAW:
grpc_slice_buffer_destroy_internal(&exec_ctx, &bb->data.raw.slice_buffer);
break;
}
gpr_free(bb);
grpc_exec_ctx_finish(&exec_ctx);
}
/* Write to a socket until it fills up, then read from it using the grpc_tcp
API. */
static void large_read_test(size_t slice_size) {
int sv[2];
grpc_endpoint *ep;
struct read_socket_state state;
ssize_t written_bytes;
gpr_timespec deadline = grpc_timeout_seconds_to_deadline(20);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
gpr_log(GPR_INFO, "Start large read test, slice size %" PRIuPTR, slice_size);
create_sockets(sv);
grpc_resource_quota *resource_quota =
grpc_resource_quota_create("large_read_test");
ep = grpc_tcp_create(grpc_fd_create(sv[1], "large_read_test"), resource_quota,
slice_size, "test");
grpc_resource_quota_unref_internal(&exec_ctx, resource_quota);
grpc_endpoint_add_to_pollset(&exec_ctx, ep, g_pollset);
written_bytes = fill_socket(sv[0]);
gpr_log(GPR_INFO, "Wrote %" PRIuPTR " bytes", written_bytes);
state.ep = ep;
state.read_bytes = 0;
state.target_read_bytes = (size_t)written_bytes;
grpc_slice_buffer_init(&state.incoming);
grpc_closure_init(&state.read_cb, read_cb, &state, grpc_schedule_on_exec_ctx);
grpc_endpoint_read(&exec_ctx, ep, &state.incoming, &state.read_cb);
gpr_mu_lock(g_mu);
while (state.read_bytes < state.target_read_bytes) {
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), deadline)));
gpr_mu_unlock(g_mu);
grpc_exec_ctx_finish(&exec_ctx);
gpr_mu_lock(g_mu);
}
GPR_ASSERT(state.read_bytes == state.target_read_bytes);
gpr_mu_unlock(g_mu);
grpc_slice_buffer_destroy_internal(&exec_ctx, &state.incoming);
grpc_endpoint_destroy(&exec_ctx, ep);
grpc_exec_ctx_finish(&exec_ctx);
}
static void on_handshake_done(grpc_exec_ctx *exec_ctx, void *arg,
grpc_error *error) {
grpc_handshaker_args *args = arg;
server_connection_state *connection_state = args->user_data;
gpr_mu_lock(&connection_state->server_state->mu);
if (error != GRPC_ERROR_NONE || connection_state->server_state->shutdown) {
const char *error_str = grpc_error_string(error);
gpr_log(GPR_DEBUG, "Handshaking failed: %s", error_str);
if (error == GRPC_ERROR_NONE && args->endpoint != NULL) {
// We were shut down after handshaking completed successfully, so
// destroy the endpoint here.
// TODO(ctiller): It is currently necessary to shutdown endpoints
// before destroying them, even if we know that there are no
// pending read/write callbacks. This should be fixed, at which
// point this can be removed.
grpc_endpoint_shutdown(exec_ctx, args->endpoint, GRPC_ERROR_NONE);
grpc_endpoint_destroy(exec_ctx, args->endpoint);
grpc_channel_args_destroy(exec_ctx, args->args);
grpc_slice_buffer_destroy_internal(exec_ctx, args->read_buffer);
gpr_free(args->read_buffer);
}
} else {
// If the handshaking succeeded but there is no endpoint, then the
// handshaker may have handed off the connection to some external
// code, so we can just clean up here without creating a transport.
if (args->endpoint != NULL) {
grpc_transport *transport =
grpc_create_chttp2_transport(exec_ctx, args->args, args->endpoint, 0);
grpc_server_setup_transport(
exec_ctx, connection_state->server_state->server, transport,
connection_state->accepting_pollset, args->args);
grpc_chttp2_transport_start_reading(exec_ctx, transport,
args->read_buffer);
grpc_channel_args_destroy(exec_ctx, args->args);
}
}
grpc_handshake_manager_pending_list_remove(
&connection_state->server_state->pending_handshake_mgrs,
connection_state->handshake_mgr);
gpr_mu_unlock(&connection_state->server_state->mu);
grpc_handshake_manager_destroy(exec_ctx, connection_state->handshake_mgr);
grpc_tcp_server_unref(exec_ctx, connection_state->server_state->tcp_server);
gpr_free(connection_state->acceptor);
gpr_free(connection_state);
}
static void finish_send_message(grpc_exec_ctx *exec_ctx,
grpc_call_element *elem) {
call_data *calld = elem->call_data;
int did_compress;
grpc_slice_buffer tmp;
grpc_slice_buffer_init(&tmp);
did_compress = grpc_msg_compress(exec_ctx, calld->compression_algorithm,
&calld->slices, &tmp);
if (did_compress) {
if (GRPC_TRACER_ON(grpc_compression_trace)) {
char *algo_name;
const size_t before_size = calld->slices.length;
const size_t after_size = tmp.length;
const float savings_ratio = 1.0f - (float)after_size / (float)before_size;
GPR_ASSERT(grpc_compression_algorithm_name(calld->compression_algorithm,
&algo_name));
gpr_log(GPR_DEBUG, "Compressed[%s] %" PRIuPTR " bytes vs. %" PRIuPTR
" bytes (%.2f%% savings)",
algo_name, before_size, after_size, 100 * savings_ratio);
}
grpc_slice_buffer_swap(&calld->slices, &tmp);
calld->send_flags |= GRPC_WRITE_INTERNAL_COMPRESS;
} else {
if (GRPC_TRACER_ON(grpc_compression_trace)) {
char *algo_name;
GPR_ASSERT(grpc_compression_algorithm_name(calld->compression_algorithm,
&algo_name));
gpr_log(GPR_DEBUG,
"Algorithm '%s' enabled but decided not to compress. Input size: "
"%" PRIuPTR,
algo_name, calld->slices.length);
}
}
grpc_slice_buffer_destroy_internal(exec_ctx, &tmp);
grpc_slice_buffer_stream_init(&calld->replacement_stream, &calld->slices,
calld->send_flags);
calld->send_op->payload->send_message.send_message =
&calld->replacement_stream.base;
calld->post_send = calld->send_op->on_complete;
calld->send_op->on_complete = &calld->send_done;
grpc_call_next_op(exec_ctx, elem, calld->send_op);
}
static void test_negative_rq_free_pool(void) {
gpr_log(GPR_INFO, "** test_negative_rq_free_pool **");
grpc_resource_quota *q =
grpc_resource_quota_create("test_negative_rq_free_pool");
grpc_resource_quota_resize(q, 1024);
grpc_resource_user *usr = grpc_resource_user_create(q, "usr");
grpc_resource_user_slice_allocator alloc;
int num_allocs = 0;
grpc_resource_user_slice_allocator_init(&alloc, usr, inc_int_cb, &num_allocs);
grpc_slice_buffer buffer;
grpc_slice_buffer_init(&buffer);
{
const int start_allocs = num_allocs;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_resource_user_alloc_slices(&exec_ctx, &alloc, 1024, 1, &buffer);
grpc_exec_ctx_finish(&exec_ctx);
GPR_ASSERT(num_allocs == start_allocs + 1);
}
grpc_resource_quota_resize(q, 512);
double eps = 0.0001;
GPR_ASSERT(grpc_resource_quota_get_memory_pressure(q) < 1 + eps);
GPR_ASSERT(grpc_resource_quota_get_memory_pressure(q) > 1 - eps);
{
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_resource_user_unref(&exec_ctx, usr);
grpc_exec_ctx_finish(&exec_ctx);
}
grpc_resource_quota_unref(q);
{
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_slice_buffer_destroy_internal(&exec_ctx, &buffer);
grpc_exec_ctx_finish(&exec_ctx);
}
}
static grpc_resolver *sockaddr_create(grpc_exec_ctx *exec_ctx,
grpc_resolver_args *args,
bool parse(const grpc_uri *uri,
grpc_resolved_address *dst)) {
if (0 != strcmp(args->uri->authority, "")) {
gpr_log(GPR_ERROR, "authority based uri's not supported by the %s scheme",
args->uri->scheme);
return NULL;
}
/* Construct addresses. */
grpc_slice path_slice =
grpc_slice_new(args->uri->path, strlen(args->uri->path), do_nothing);
grpc_slice_buffer path_parts;
grpc_slice_buffer_init(&path_parts);
grpc_slice_split(path_slice, ",", &path_parts);
grpc_lb_addresses *addresses =
grpc_lb_addresses_create(path_parts.count, NULL /* user_data_vtable */);
bool errors_found = false;
for (size_t i = 0; i < addresses->num_addresses; i++) {
grpc_uri ith_uri = *args->uri;
char *part_str = grpc_slice_to_c_string(path_parts.slices[i]);
ith_uri.path = part_str;
if (!parse(&ith_uri, &addresses->addresses[i].address)) {
errors_found = true; /* GPR_TRUE */
}
gpr_free(part_str);
if (errors_found) break;
}
grpc_slice_buffer_destroy_internal(exec_ctx, &path_parts);
grpc_slice_unref_internal(exec_ctx, path_slice);
if (errors_found) {
grpc_lb_addresses_destroy(exec_ctx, addresses);
return NULL;
}
/* Instantiate resolver. */
sockaddr_resolver *r = gpr_zalloc(sizeof(sockaddr_resolver));
r->addresses = addresses;
r->channel_args = grpc_channel_args_copy(args->args);
grpc_resolver_init(&r->base, &sockaddr_resolver_vtable, args->combiner);
return &r->base;
}
static void on_handshake_done(grpc_exec_ctx *exec_ctx, void *arg,
grpc_error *error) {
grpc_handshaker_args *args = arg;
chttp2_connector *c = args->user_data;
gpr_mu_lock(&c->mu);
if (error != GRPC_ERROR_NONE || c->shutdown) {
if (error == GRPC_ERROR_NONE) {
error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("connector shutdown");
// We were shut down after handshaking completed successfully, so
// destroy the endpoint here.
// TODO(ctiller): It is currently necessary to shutdown endpoints
// before destroying them, even if we know that there are no
// pending read/write callbacks. This should be fixed, at which
// point this can be removed.
grpc_endpoint_shutdown(exec_ctx, args->endpoint, GRPC_ERROR_REF(error));
grpc_endpoint_destroy(exec_ctx, args->endpoint);
grpc_channel_args_destroy(exec_ctx, args->args);
grpc_slice_buffer_destroy_internal(exec_ctx, args->read_buffer);
gpr_free(args->read_buffer);
} else {
error = GRPC_ERROR_REF(error);
}
memset(c->result, 0, sizeof(*c->result));
} else {
c->result->transport =
grpc_create_chttp2_transport(exec_ctx, args->args, args->endpoint, 1);
GPR_ASSERT(c->result->transport);
grpc_chttp2_transport_start_reading(exec_ctx, c->result->transport,
args->read_buffer);
c->result->channel_args = args->args;
}
grpc_closure *notify = c->notify;
c->notify = NULL;
grpc_closure_sched(exec_ctx, notify, error);
grpc_handshake_manager_destroy(exec_ctx, c->handshake_mgr);
c->handshake_mgr = NULL;
gpr_mu_unlock(&c->mu);
chttp2_connector_unref(exec_ctx, (grpc_connector *)c);
}
static void multiple_shutdown_test(grpc_endpoint_test_config config) {
grpc_endpoint_test_fixture f =
begin_test(config, "multiple_shutdown_test", 128);
int fail_count = 0;
grpc_slice_buffer slice_buffer;
grpc_slice_buffer_init(&slice_buffer);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_endpoint_add_to_pollset(&exec_ctx, f.client_ep, g_pollset);
grpc_endpoint_read(&exec_ctx, f.client_ep, &slice_buffer,
GRPC_CLOSURE_CREATE(inc_on_failure, &fail_count,
grpc_schedule_on_exec_ctx));
wait_for_fail_count(&exec_ctx, &fail_count, 0);
grpc_endpoint_shutdown(&exec_ctx, f.client_ep,
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Test Shutdown"));
wait_for_fail_count(&exec_ctx, &fail_count, 1);
grpc_endpoint_read(&exec_ctx, f.client_ep, &slice_buffer,
GRPC_CLOSURE_CREATE(inc_on_failure, &fail_count,
grpc_schedule_on_exec_ctx));
wait_for_fail_count(&exec_ctx, &fail_count, 2);
grpc_slice_buffer_add(&slice_buffer, grpc_slice_from_copied_string("a"));
grpc_endpoint_write(&exec_ctx, f.client_ep, &slice_buffer,
GRPC_CLOSURE_CREATE(inc_on_failure, &fail_count,
grpc_schedule_on_exec_ctx));
wait_for_fail_count(&exec_ctx, &fail_count, 3);
grpc_endpoint_shutdown(&exec_ctx, f.client_ep,
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Test Shutdown"));
wait_for_fail_count(&exec_ctx, &fail_count, 3);
grpc_slice_buffer_destroy_internal(&exec_ctx, &slice_buffer);
grpc_endpoint_destroy(&exec_ctx, f.client_ep);
grpc_endpoint_destroy(&exec_ctx, f.server_ep);
grpc_exec_ctx_finish(&exec_ctx);
}
static grpc_resolver* fake_resolver_create(grpc_exec_ctx* exec_ctx,
grpc_resolver_factory* factory,
grpc_resolver_args* args) {
if (0 != strcmp(args->uri->authority, "")) {
gpr_log(GPR_ERROR, "authority based uri's not supported by the %s scheme",
args->uri->scheme);
return NULL;
}
// Get lb_enabled arg. Anything other than "0" is interpreted as true.
const char* lb_enabled_qpart =
grpc_uri_get_query_arg(args->uri, "lb_enabled");
const bool lb_enabled =
lb_enabled_qpart != NULL && strcmp("0", lb_enabled_qpart) != 0;
// Get the balancer's names.
const char* balancer_names =
grpc_uri_get_query_arg(args->uri, "balancer_names");
grpc_slice_buffer balancer_names_parts;
grpc_slice_buffer_init(&balancer_names_parts);
if (balancer_names != NULL) {
const grpc_slice balancer_names_slice =
grpc_slice_from_copied_string(balancer_names);
grpc_slice_split(balancer_names_slice, ",", &balancer_names_parts);
grpc_slice_unref(balancer_names_slice);
}
// Construct addresses.
grpc_slice path_slice =
grpc_slice_new(args->uri->path, strlen(args->uri->path), do_nothing);
grpc_slice_buffer path_parts;
grpc_slice_buffer_init(&path_parts);
grpc_slice_split(path_slice, ",", &path_parts);
if (balancer_names_parts.count > 0 &&
path_parts.count != balancer_names_parts.count) {
gpr_log(GPR_ERROR,
"Balancer names present but mismatched with number of addresses: "
"%lu balancer names != %lu addresses",
(unsigned long)balancer_names_parts.count,
(unsigned long)path_parts.count);
return NULL;
}
grpc_lb_addresses* addresses =
grpc_lb_addresses_create(path_parts.count, NULL /* user_data_vtable */);
bool errors_found = false;
for (size_t i = 0; i < addresses->num_addresses; i++) {
grpc_uri ith_uri = *args->uri;
char* part_str = grpc_slice_to_c_string(path_parts.slices[i]);
ith_uri.path = part_str;
if (!parse_ipv4(&ith_uri, &addresses->addresses[i].address)) {
errors_found = true;
}
gpr_free(part_str);
if (errors_found) break;
addresses->addresses[i].is_balancer = lb_enabled;
addresses->addresses[i].balancer_name =
balancer_names_parts.count > 0
? grpc_dump_slice(balancer_names_parts.slices[i], GPR_DUMP_ASCII)
: NULL;
}
grpc_slice_buffer_destroy_internal(exec_ctx, &path_parts);
grpc_slice_buffer_destroy_internal(exec_ctx, &balancer_names_parts);
grpc_slice_unref(path_slice);
if (errors_found) {
grpc_lb_addresses_destroy(exec_ctx, addresses);
return NULL;
}
// Instantiate resolver.
fake_resolver* r = gpr_malloc(sizeof(fake_resolver));
memset(r, 0, sizeof(*r));
r->channel_args = grpc_channel_args_copy(args->args);
r->addresses = addresses;
gpr_mu_init(&r->mu);
grpc_resolver_init(&r->base, &fake_resolver_vtable);
return &r->base;
}
// Callback invoked for reading HTTP CONNECT response.
static void on_read_done(grpc_exec_ctx* exec_ctx, void* arg,
grpc_error* error) {
http_connect_handshaker* handshaker = arg;
gpr_mu_lock(&handshaker->mu);
if (error != GRPC_ERROR_NONE || handshaker->shutdown) {
// If the read failed or we're shutting down, clean up and invoke the
// callback with the error.
handshake_failed_locked(exec_ctx, handshaker, GRPC_ERROR_REF(error));
goto done;
}
// Add buffer to parser.
for (size_t i = 0; i < handshaker->args->read_buffer->count; ++i) {
if (GRPC_SLICE_LENGTH(handshaker->args->read_buffer->slices[i]) > 0) {
size_t body_start_offset = 0;
error = grpc_http_parser_parse(&handshaker->http_parser,
handshaker->args->read_buffer->slices[i],
&body_start_offset);
if (error != GRPC_ERROR_NONE) {
handshake_failed_locked(exec_ctx, handshaker, error);
goto done;
}
if (handshaker->http_parser.state == GRPC_HTTP_BODY) {
// Remove the data we've already read from the read buffer,
// leaving only the leftover bytes (if any).
grpc_slice_buffer tmp_buffer;
grpc_slice_buffer_init(&tmp_buffer);
if (body_start_offset <
GRPC_SLICE_LENGTH(handshaker->args->read_buffer->slices[i])) {
grpc_slice_buffer_add(
&tmp_buffer,
grpc_slice_split_tail(&handshaker->args->read_buffer->slices[i],
body_start_offset));
}
grpc_slice_buffer_addn(&tmp_buffer,
&handshaker->args->read_buffer->slices[i + 1],
handshaker->args->read_buffer->count - i - 1);
grpc_slice_buffer_swap(handshaker->args->read_buffer, &tmp_buffer);
grpc_slice_buffer_destroy_internal(exec_ctx, &tmp_buffer);
break;
}
}
}
// If we're not done reading the response, read more data.
// TODO(roth): In practice, I suspect that the response to a CONNECT
// request will never include a body, in which case this check is
// sufficient. However, the language of RFC-2817 doesn't explicitly
// forbid the response from including a body. If there is a body,
// it's possible that we might have parsed part but not all of the
// body, in which case this check will cause us to fail to parse the
// remainder of the body. If that ever becomes an issue, we may
// need to fix the HTTP parser to understand when the body is
// complete (e.g., handling chunked transfer encoding or looking
// at the Content-Length: header).
if (handshaker->http_parser.state != GRPC_HTTP_BODY) {
grpc_slice_buffer_reset_and_unref_internal(exec_ctx,
handshaker->args->read_buffer);
grpc_endpoint_read(exec_ctx, handshaker->args->endpoint,
handshaker->args->read_buffer,
&handshaker->response_read_closure);
gpr_mu_unlock(&handshaker->mu);
return;
}
// Make sure we got a 2xx response.
if (handshaker->http_response.status < 200 ||
handshaker->http_response.status >= 300) {
char* msg;
gpr_asprintf(&msg, "HTTP proxy returned response code %d",
handshaker->http_response.status);
error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(msg);
gpr_free(msg);
handshake_failed_locked(exec_ctx, handshaker, error);
goto done;
}
// Success. Invoke handshake-done callback.
grpc_closure_sched(exec_ctx, handshaker->on_handshake_done, error);
done:
// Set shutdown to true so that subsequent calls to
// http_connect_handshaker_shutdown() do nothing.
handshaker->shutdown = true;
gpr_mu_unlock(&handshaker->mu);
http_connect_handshaker_unref(exec_ctx, handshaker);
}
/* Do both reading and writing using the grpc_endpoint API.
This also includes a test of the shutdown behavior.
*/
static void read_and_write_test(grpc_endpoint_test_config config,
size_t num_bytes, size_t write_size,
size_t slice_size, bool shutdown) {
struct read_and_write_test_state state;
gpr_timespec deadline = grpc_timeout_seconds_to_deadline(20);
grpc_endpoint_test_fixture f =
begin_test(config, "read_and_write_test", slice_size);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
gpr_log(GPR_DEBUG, "num_bytes=%" PRIuPTR " write_size=%" PRIuPTR
" slice_size=%" PRIuPTR " shutdown=%d",
num_bytes, write_size, slice_size, shutdown);
if (shutdown) {
gpr_log(GPR_INFO, "Start read and write shutdown test");
} else {
gpr_log(GPR_INFO, "Start read and write test with %" PRIuPTR
" bytes, slice size %" PRIuPTR,
num_bytes, slice_size);
}
state.read_ep = f.client_ep;
state.write_ep = f.server_ep;
state.target_bytes = num_bytes;
state.bytes_read = 0;
state.current_write_size = write_size;
state.bytes_written = 0;
state.read_done = 0;
state.write_done = 0;
state.current_read_data = 0;
state.current_write_data = 0;
GRPC_CLOSURE_INIT(&state.done_read, read_and_write_test_read_handler, &state,
grpc_schedule_on_exec_ctx);
GRPC_CLOSURE_INIT(&state.done_write, read_and_write_test_write_handler,
&state, grpc_schedule_on_exec_ctx);
grpc_slice_buffer_init(&state.outgoing);
grpc_slice_buffer_init(&state.incoming);
/* Get started by pretending an initial write completed */
/* NOTE: Sets up initial conditions so we can have the same write handler
for the first iteration as for later iterations. It does the right thing
even when bytes_written is unsigned. */
state.bytes_written -= state.current_write_size;
read_and_write_test_write_handler(&exec_ctx, &state, GRPC_ERROR_NONE);
grpc_exec_ctx_flush(&exec_ctx);
grpc_endpoint_read(&exec_ctx, state.read_ep, &state.incoming,
&state.done_read);
if (shutdown) {
gpr_log(GPR_DEBUG, "shutdown read");
grpc_endpoint_shutdown(
&exec_ctx, state.read_ep,
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Test Shutdown"));
gpr_log(GPR_DEBUG, "shutdown write");
grpc_endpoint_shutdown(
&exec_ctx, state.write_ep,
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Test Shutdown"));
}
grpc_exec_ctx_flush(&exec_ctx);
gpr_mu_lock(g_mu);
while (!state.read_done || !state.write_done) {
grpc_pollset_worker *worker = NULL;
GPR_ASSERT(gpr_time_cmp(gpr_now(GPR_CLOCK_MONOTONIC), deadline) < 0);
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"pollset_work",
grpc_pollset_work(&exec_ctx, g_pollset, &worker,
gpr_now(GPR_CLOCK_MONOTONIC), deadline)));
}
gpr_mu_unlock(g_mu);
grpc_exec_ctx_flush(&exec_ctx);
end_test(config);
grpc_slice_buffer_destroy_internal(&exec_ctx, &state.outgoing);
grpc_slice_buffer_destroy_internal(&exec_ctx, &state.incoming);
grpc_endpoint_destroy(&exec_ctx, state.read_ep);
grpc_endpoint_destroy(&exec_ctx, state.write_ep);
grpc_exec_ctx_finish(&exec_ctx);
}
/* Do a read_test, then release fd and try to read/write again. Verify that
grpc_tcp_fd() is available before the fd is released. */
static void release_fd_test(size_t num_bytes, size_t slice_size) {
int sv[2];
grpc_endpoint *ep;
struct read_socket_state state;
size_t written_bytes;
int fd;
gpr_timespec deadline = grpc_timeout_seconds_to_deadline(20);
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_closure fd_released_cb;
int fd_released_done = 0;
grpc_closure_init(&fd_released_cb, &on_fd_released, &fd_released_done,
grpc_schedule_on_exec_ctx);
gpr_log(GPR_INFO,
"Release fd read_test of size %" PRIuPTR ", slice size %" PRIuPTR,
num_bytes, slice_size);
create_sockets(sv);
grpc_resource_quota *resource_quota =
grpc_resource_quota_create("release_fd_test");
ep = grpc_tcp_create(grpc_fd_create(sv[1], "read_test"), resource_quota,
slice_size, "test");
GPR_ASSERT(grpc_tcp_fd(ep) == sv[1] && sv[1] >= 0);
grpc_resource_quota_unref_internal(&exec_ctx, resource_quota);
grpc_endpoint_add_to_pollset(&exec_ctx, ep, g_pollset);
written_bytes = fill_socket_partial(sv[0], num_bytes);
gpr_log(GPR_INFO, "Wrote %" PRIuPTR " bytes", written_bytes);
state.ep = ep;
state.read_bytes = 0;
state.target_read_bytes = written_bytes;
grpc_slice_buffer_init(&state.incoming);
grpc_closure_init(&state.read_cb, read_cb, &state, grpc_schedule_on_exec_ctx);
grpc_endpoint_read(&exec_ctx, ep, &state.incoming, &state.read_cb);
gpr_mu_lock(g_mu);
while (state.read_bytes < state.target_read_bytes) {
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), deadline)));
gpr_log(GPR_DEBUG, "wakeup: read=%" PRIdPTR " target=%" PRIdPTR,
state.read_bytes, state.target_read_bytes);
gpr_mu_unlock(g_mu);
grpc_exec_ctx_flush(&exec_ctx);
gpr_mu_lock(g_mu);
}
GPR_ASSERT(state.read_bytes == state.target_read_bytes);
gpr_mu_unlock(g_mu);
grpc_slice_buffer_destroy_internal(&exec_ctx, &state.incoming);
grpc_tcp_destroy_and_release_fd(&exec_ctx, ep, &fd, &fd_released_cb);
grpc_exec_ctx_flush(&exec_ctx);
gpr_mu_lock(g_mu);
while (!fd_released_done) {
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), deadline)));
gpr_log(GPR_DEBUG, "wakeup: fd_released_done=%d", fd_released_done);
}
gpr_mu_unlock(g_mu);
GPR_ASSERT(fd_released_done == 1);
GPR_ASSERT(fd == sv[1]);
grpc_exec_ctx_finish(&exec_ctx);
written_bytes = fill_socket_partial(sv[0], num_bytes);
drain_socket_blocking(fd, written_bytes, written_bytes);
written_bytes = fill_socket_partial(fd, num_bytes);
drain_socket_blocking(sv[0], written_bytes, written_bytes);
close(fd);
}
static void sb_list_entry_destroy(grpc_exec_ctx *exec_ctx, sb_list_entry *le) {
grpc_slice_buffer_destroy_internal(exec_ctx, &le->sb);
gpr_free(le);
}
