grpc_error *grpc_chttp2_data_parser_parse(grpc_exec_ctx *exec_ctx, void *parser, grpc_chttp2_transport *t, grpc_chttp2_stream *s, grpc_slice slice, int is_last) { /* grpc_error *error = parse_inner_buffer(exec_ctx, p, t, s, slice); */ s->stats.incoming.framing_bytes += GRPC_SLICE_LENGTH(slice); if (!s->pending_byte_stream) { grpc_slice_ref_internal(slice); grpc_slice_buffer_add(&s->frame_storage, slice); grpc_chttp2_maybe_complete_recv_message(exec_ctx, t, s); } else if (s->on_next) { GPR_ASSERT(s->frame_storage.length == 0); grpc_slice_ref_internal(slice); grpc_slice_buffer_add(&s->unprocessed_incoming_frames_buffer, slice); grpc_closure_sched(exec_ctx, s->on_next, GRPC_ERROR_NONE); s->on_next = NULL; } else { grpc_slice_ref_internal(slice); grpc_slice_buffer_add(&s->frame_storage, slice); } if (is_last && s->received_last_frame) { grpc_chttp2_mark_stream_closed(exec_ctx, t, s, true, false, GRPC_ERROR_NONE); } return GRPC_ERROR_NONE; }
void grpc_mock_endpoint_put_read(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, grpc_slice slice) { grpc_mock_endpoint *m = (grpc_mock_endpoint *)ep; gpr_mu_lock(&m->mu); if (m->on_read != NULL) { grpc_slice_buffer_add(m->on_read_out, slice); grpc_exec_ctx_sched(exec_ctx, m->on_read, GRPC_ERROR_NONE, NULL); m->on_read = NULL; } else { grpc_slice_buffer_add(&m->read_buffer, slice); } gpr_mu_unlock(&m->mu); }
static void flush_read_staging_buffer(secure_endpoint *ep, uint8_t **cur, uint8_t **end) { grpc_slice_buffer_add(ep->read_buffer, ep->read_staging_buffer); ep->read_staging_buffer = GRPC_SLICE_MALLOC(STAGING_BUFFER_SIZE); *cur = GRPC_SLICE_START_PTR(ep->read_staging_buffer); *end = GRPC_SLICE_END_PTR(ep->read_staging_buffer); }
/* Asynchronous callback from the IOCP, or the background thread. */ static void on_read(grpc_exec_ctx *exec_ctx, void *tcpp, grpc_error *error) { grpc_tcp *tcp = tcpp; grpc_closure *cb = tcp->read_cb; grpc_winsocket *socket = tcp->socket; grpc_slice sub; grpc_winsocket_callback_info *info = &socket->read_info; GRPC_ERROR_REF(error); if (error == GRPC_ERROR_NONE) { if (info->wsa_error != 0 && !tcp->shutting_down) { char *utf8_message = gpr_format_message(info->wsa_error); error = GRPC_ERROR_CREATE(utf8_message); gpr_free(utf8_message); grpc_slice_unref(tcp->read_slice); } else { if (info->bytes_transfered != 0 && !tcp->shutting_down) { sub = grpc_slice_sub_no_ref(tcp->read_slice, 0, info->bytes_transfered); grpc_slice_buffer_add(tcp->read_slices, sub); } else { grpc_slice_unref(tcp->read_slice); error = GRPC_ERROR_CREATE("End of TCP stream"); } } } tcp->read_cb = NULL; TCP_UNREF(exec_ctx, tcp, "read"); grpc_exec_ctx_sched(exec_ctx, cb, error, NULL); }
static int copy(grpc_slice_buffer* input, grpc_slice_buffer* output) { size_t i; for (i = 0; i < input->count; i++) { grpc_slice_buffer_add(output, grpc_slice_ref(input->slices[i])); } return 1; }
static grpc_error *send_handshake_bytes_to_peer_locked(grpc_exec_ctx *exec_ctx, security_handshaker *h) { // Get data to send. tsi_result result = TSI_OK; size_t offset = 0; do { size_t to_send_size = h->handshake_buffer_size - offset; result = tsi_handshaker_get_bytes_to_send_to_peer( h->handshaker, h->handshake_buffer + offset, &to_send_size); offset += to_send_size; if (result == TSI_INCOMPLETE_DATA) { h->handshake_buffer_size *= 2; h->handshake_buffer = gpr_realloc(h->handshake_buffer, h->handshake_buffer_size); } } while (result == TSI_INCOMPLETE_DATA); if (result != TSI_OK) { return grpc_set_tsi_error_result(GRPC_ERROR_CREATE("Handshake failed"), result); } // Send data. grpc_slice to_send = grpc_slice_from_copied_buffer((const char *)h->handshake_buffer, offset); grpc_slice_buffer_reset_and_unref(&h->outgoing); grpc_slice_buffer_add(&h->outgoing, to_send); grpc_endpoint_write(exec_ctx, h->args->endpoint, &h->outgoing, &h->on_handshake_data_sent_to_peer); return GRPC_ERROR_NONE; }
static grpc_error *parse_frame_slice(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t, grpc_slice slice, int is_last) { grpc_chttp2_stream *s = t->incoming_stream; grpc_error *err = t->parser(exec_ctx, t->parser_data, t, s, slice, is_last); if (err == GRPC_ERROR_NONE) { return err; } else if (grpc_error_get_int(err, GRPC_ERROR_INT_STREAM_ID, NULL)) { if (GRPC_TRACER_ON(grpc_http_trace)) { const char *msg = grpc_error_string(err); gpr_log(GPR_ERROR, "%s", msg); } grpc_chttp2_parsing_become_skip_parser(exec_ctx, t); if (s) { s->forced_close_error = err; grpc_slice_buffer_add( &t->qbuf, grpc_chttp2_rst_stream_create(t->incoming_stream_id, GRPC_HTTP2_PROTOCOL_ERROR, &s->stats.outgoing)); } else { GRPC_ERROR_UNREF(err); } } return err; }
static void flush_write_staging_buffer(secure_endpoint *ep, uint8_t **cur, uint8_t **end) { grpc_slice_buffer_add(&ep->output_buffer, ep->write_staging_buffer); ep->write_staging_buffer = grpc_slice_malloc(STAGING_BUFFER_SIZE); *cur = GRPC_SLICE_START_PTR(ep->write_staging_buffer); *end = GRPC_SLICE_END_PTR(ep->write_staging_buffer); }
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 connected(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { connector *c = arg; grpc_endpoint *tcp = c->newly_connecting_endpoint; if (tcp != NULL) { gpr_mu_lock(&c->mu); GPR_ASSERT(c->connecting_endpoint == NULL); c->connecting_endpoint = tcp; gpr_mu_unlock(&c->mu); if (!GRPC_SLICE_IS_EMPTY(c->args.initial_connect_string)) { grpc_closure_init(&c->initial_string_sent, on_initial_connect_string_sent, c); grpc_slice_buffer_init(&c->initial_string_buffer); grpc_slice_buffer_add(&c->initial_string_buffer, c->args.initial_connect_string); grpc_endpoint_write(exec_ctx, tcp, &c->initial_string_buffer, &c->initial_string_sent); } else { grpc_handshake_manager_do_handshake( exec_ctx, c->handshake_mgr, tcp, c->args.channel_args, c->args.deadline, NULL /* acceptor */, on_handshake_done, c); } } else { memset(c->result, 0, sizeof(*c->result)); grpc_closure *notify = c->notify; c->notify = NULL; grpc_exec_ctx_sched(exec_ctx, notify, GRPC_ERROR_REF(error), NULL); } }
grpc_error *grpc_chttp2_ping_parser_parse(grpc_exec_ctx *exec_ctx, void *parser, grpc_chttp2_transport *t, grpc_chttp2_stream *s, grpc_slice slice, int is_last) { uint8_t *const beg = GRPC_SLICE_START_PTR(slice); uint8_t *const end = GRPC_SLICE_END_PTR(slice); uint8_t *cur = beg; grpc_chttp2_ping_parser *p = parser; while (p->byte != 8 && cur != end) { p->opaque_8bytes[p->byte] = *cur; cur++; p->byte++; } if (p->byte == 8) { GPR_ASSERT(is_last); if (p->is_ack) { grpc_chttp2_ack_ping(exec_ctx, t, p->opaque_8bytes); } else { grpc_slice_buffer_add(&t->qbuf, grpc_chttp2_ping_create(1, p->opaque_8bytes)); grpc_chttp2_initiate_write(exec_ctx, t, false, "ping response"); } } return GRPC_ERROR_NONE; }
/* Asynchronous callback from the IOCP, or the background thread. */ static void on_read(grpc_exec_ctx *exec_ctx, void *tcpp, grpc_error *error) { grpc_tcp *tcp = tcpp; grpc_closure *cb = tcp->read_cb; grpc_winsocket *socket = tcp->socket; grpc_slice sub; grpc_winsocket_callback_info *info = &socket->read_info; GRPC_ERROR_REF(error); if (error == GRPC_ERROR_NONE) { if (info->wsa_error != 0 && !tcp->shutting_down) { char *utf8_message = gpr_format_message(info->wsa_error); error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(utf8_message); gpr_free(utf8_message); grpc_slice_unref_internal(exec_ctx, tcp->read_slice); } else { if (info->bytes_transfered != 0 && !tcp->shutting_down) { sub = grpc_slice_sub_no_ref(tcp->read_slice, 0, info->bytes_transfered); grpc_slice_buffer_add(tcp->read_slices, sub); } else { grpc_slice_unref_internal(exec_ctx, tcp->read_slice); error = tcp->shutting_down ? GRPC_ERROR_CREATE_REFERENCING_FROM_STATIC_STRING( "TCP stream shutting down", &tcp->shutdown_error, 1) : GRPC_ERROR_CREATE_FROM_STATIC_STRING("End of TCP stream"); } } } tcp->read_cb = NULL; TCP_UNREF(exec_ctx, tcp, "read"); GRPC_CLOSURE_SCHED(exec_ctx, cb, error); }
static void connected(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) { chttp2_connector *c = arg; gpr_mu_lock(&c->mu); GPR_ASSERT(c->connecting); c->connecting = false; if (error != GRPC_ERROR_NONE || c->shutdown) { if (error == GRPC_ERROR_NONE) { error = GRPC_ERROR_CREATE("connector shutdown"); } else { error = GRPC_ERROR_REF(error); } memset(c->result, 0, sizeof(*c->result)); grpc_closure *notify = c->notify; c->notify = NULL; grpc_exec_ctx_sched(exec_ctx, notify, error, NULL); if (c->endpoint != NULL) grpc_endpoint_shutdown(exec_ctx, c->endpoint); gpr_mu_unlock(&c->mu); chttp2_connector_unref(exec_ctx, arg); } else { GPR_ASSERT(c->endpoint != NULL); if (!GRPC_SLICE_IS_EMPTY(c->args.initial_connect_string)) { grpc_closure_init(&c->initial_string_sent, on_initial_connect_string_sent, c); grpc_slice_buffer_init(&c->initial_string_buffer); grpc_slice_buffer_add(&c->initial_string_buffer, c->args.initial_connect_string); grpc_endpoint_write(exec_ctx, c->endpoint, &c->initial_string_buffer, &c->initial_string_sent); } else { start_handshake_locked(exec_ctx, c); } gpr_mu_unlock(&c->mu); } }
static void http_connect_handshaker_do_handshake( grpc_exec_ctx* exec_ctx, grpc_handshaker* handshaker_in, grpc_tcp_server_acceptor* acceptor, grpc_closure* on_handshake_done, grpc_handshaker_args* args) { http_connect_handshaker* handshaker = (http_connect_handshaker*)handshaker_in; gpr_mu_lock(&handshaker->mu); // Save state in the handshaker object. handshaker->args = args; handshaker->on_handshake_done = on_handshake_done; // Send HTTP CONNECT request. gpr_log(GPR_INFO, "Connecting to server %s via HTTP proxy %s", handshaker->server_name, handshaker->proxy_server); grpc_httpcli_request request; memset(&request, 0, sizeof(request)); request.host = handshaker->proxy_server; request.http.method = "CONNECT"; request.http.path = handshaker->server_name; request.handshaker = &grpc_httpcli_plaintext; grpc_slice request_slice = grpc_httpcli_format_connect_request(&request); grpc_slice_buffer_add(&handshaker->write_buffer, request_slice); // Take a new ref to be held by the write callback. gpr_ref(&handshaker->refcount); grpc_endpoint_write(exec_ctx, args->endpoint, &handshaker->write_buffer, &handshaker->request_done_closure); gpr_mu_unlock(&handshaker->mu); }
void grpc_chttp2_encode_data(uint32_t id, grpc_slice_buffer *inbuf, uint32_t write_bytes, int is_eof, grpc_transport_one_way_stats *stats, grpc_slice_buffer *outbuf) { grpc_slice hdr; uint8_t *p; static const size_t header_size = 9; hdr = grpc_slice_malloc(header_size); p = GRPC_SLICE_START_PTR(hdr); GPR_ASSERT(write_bytes < (1 << 24)); *p++ = (uint8_t)(write_bytes >> 16); *p++ = (uint8_t)(write_bytes >> 8); *p++ = (uint8_t)(write_bytes); *p++ = GRPC_CHTTP2_FRAME_DATA; *p++ = is_eof ? GRPC_CHTTP2_DATA_FLAG_END_STREAM : 0; *p++ = (uint8_t)(id >> 24); *p++ = (uint8_t)(id >> 16); *p++ = (uint8_t)(id >> 8); *p++ = (uint8_t)(id); grpc_slice_buffer_add(outbuf, hdr); grpc_slice_buffer_move_first(inbuf, write_bytes, outbuf); stats->framing_bytes += header_size; stats->data_bytes += write_bytes; }
static void add_header_data(framer_state *st, grpc_slice slice) { size_t len = GRPC_SLICE_LENGTH(slice); size_t remaining; if (len == 0) return; remaining = st->max_frame_size + st->output_length_at_start_of_frame - st->output->length; if (len <= remaining) { st->stats->header_bytes += len; grpc_slice_buffer_add(st->output, slice); } else { st->stats->header_bytes += remaining; grpc_slice_buffer_add(st->output, grpc_slice_split_head(&slice, remaining)); finish_frame(st, 0, 0); begin_frame(st); add_header_data(st, slice); } }
static void got_slice(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) { grpc_call_element *elem = elemp; call_data *calld = elem->call_data; grpc_slice_buffer_add(&calld->slices, calld->incoming_slice); if (calld->send_length == calld->slices.length) { finish_send_message(exec_ctx, elem); } else { continue_send_message(exec_ctx, elem); } }
static void me_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, grpc_slice_buffer *slices, grpc_closure *cb) { half *m = other_half((half *)ep); gpr_mu_lock(&m->parent->mu); grpc_error *error = GRPC_ERROR_NONE; if (m->parent->shutdown) { error = GRPC_ERROR_CREATE("Endpoint already shutdown"); } else if (m->on_read != NULL) { for (size_t i = 0; i < slices->count; i++) { grpc_slice_buffer_add(m->on_read_out, grpc_slice_ref(slices->slices[i])); } grpc_exec_ctx_sched(exec_ctx, m->on_read, GRPC_ERROR_NONE, NULL); m->on_read = NULL; } else { for (size_t i = 0; i < slices->count; i++) { grpc_slice_buffer_add(&m->read_buffer, grpc_slice_ref(slices->slices[i])); } } gpr_mu_unlock(&m->parent->mu); grpc_exec_ctx_sched(exec_ctx, cb, error, NULL); }
static void continue_send_message(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) { call_data *calld = elem->call_data; while (grpc_byte_stream_next(exec_ctx, calld->send_op->send_message, &calld->incoming_slice, ~(size_t)0, &calld->got_slice)) { grpc_slice_buffer_add(&calld->slices, calld->incoming_slice); if (calld->send_length == calld->slices.length) { finish_send_message(exec_ctx, elem); break; } } }
grpc_byte_buffer *grpc_raw_byte_buffer_from_reader( grpc_byte_buffer_reader *reader) { grpc_byte_buffer *bb = gpr_malloc(sizeof(grpc_byte_buffer)); grpc_slice slice; bb->type = GRPC_BB_RAW; bb->data.raw.compression = GRPC_COMPRESS_NONE; grpc_slice_buffer_init(&bb->data.raw.slice_buffer); while (grpc_byte_buffer_reader_next(reader, &slice)) { grpc_slice_buffer_add(&bb->data.raw.slice_buffer, slice); } return bb; }
static grpc_error *init_data_frame_parser(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t) { grpc_chttp2_stream *s = grpc_chttp2_parsing_lookup_stream(t, t->incoming_stream_id); grpc_error *err = GRPC_ERROR_NONE; err = grpc_chttp2_flowctl_recv_data(&t->flow_control, s == NULL ? NULL : &s->flow_control, t->incoming_frame_size); grpc_chttp2_act_on_flowctl_action( exec_ctx, grpc_chttp2_flowctl_get_action( &t->flow_control, s == NULL ? NULL : &s->flow_control), t, s); if (err != GRPC_ERROR_NONE) { goto error_handler; } if (s == NULL) { return init_skip_frame_parser(exec_ctx, t, 0); } s->received_bytes += t->incoming_frame_size; s->stats.incoming.framing_bytes += 9; if (err == GRPC_ERROR_NONE && s->read_closed) { return init_skip_frame_parser(exec_ctx, t, 0); } if (err == GRPC_ERROR_NONE) { err = grpc_chttp2_data_parser_begin_frame( &s->data_parser, t->incoming_frame_flags, s->id, s); } error_handler: if (err == GRPC_ERROR_NONE) { t->incoming_stream = s; /* t->parser = grpc_chttp2_data_parser_parse;*/ t->parser = grpc_chttp2_data_parser_parse; t->parser_data = &s->data_parser; t->ping_state.pings_before_data_required = t->ping_policy.max_pings_without_data; t->ping_state.last_ping_sent_time = gpr_inf_past(GPR_CLOCK_MONOTONIC); return GRPC_ERROR_NONE; } else if (grpc_error_get_int(err, GRPC_ERROR_INT_STREAM_ID, NULL)) { /* handle stream errors by closing the stream */ if (s != NULL) { grpc_chttp2_mark_stream_closed(exec_ctx, t, s, true, false, err); } grpc_slice_buffer_add( &t->qbuf, grpc_chttp2_rst_stream_create(t->incoming_stream_id, GRPC_HTTP2_PROTOCOL_ERROR, &s->stats.outgoing)); return init_skip_frame_parser(exec_ctx, t, 0); } else { return err; } }
static void me_write(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep, grpc_slice_buffer *slices, grpc_closure *cb) { half *m = other_half((half *)ep); gpr_mu_lock(&m->parent->mu); grpc_error *error = GRPC_ERROR_NONE; m->parent->stats->num_writes++; if (m->parent->shutdown) { error = GRPC_ERROR_CREATE_FROM_STATIC_STRING("Endpoint already shutdown"); } else if (m->on_read != NULL) { for (size_t i = 0; i < slices->count; i++) { grpc_slice_buffer_add(m->on_read_out, grpc_slice_copy(slices->slices[i])); } GRPC_CLOSURE_SCHED(exec_ctx, m->on_read, GRPC_ERROR_NONE); m->on_read = NULL; } else { for (size_t i = 0; i < slices->count; i++) { grpc_slice_buffer_add(&m->read_buffer, grpc_slice_copy(slices->slices[i])); } } gpr_mu_unlock(&m->parent->mu); GRPC_CLOSURE_SCHED(exec_ctx, cb, error); }
grpc_byte_buffer *grpc_raw_compressed_byte_buffer_create( grpc_slice *slices, size_t nslices, grpc_compression_algorithm compression) { size_t i; grpc_byte_buffer *bb = gpr_malloc(sizeof(grpc_byte_buffer)); bb->type = GRPC_BB_RAW; bb->data.raw.compression = compression; grpc_slice_buffer_init(&bb->data.raw.slice_buffer); for (i = 0; i < nslices; i++) { grpc_slice_ref_internal(slices[i]); grpc_slice_buffer_add(&bb->data.raw.slice_buffer, slices[i]); } return bb; }
static void got_slice(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) { grpc_call_element *elem = elemp; call_data *calld = elem->call_data; if (GRPC_ERROR_NONE != grpc_byte_stream_pull(exec_ctx, calld->send_op->payload->send_message.send_message, &calld->incoming_slice)) { /* Should never reach here */ abort(); } grpc_slice_buffer_add(&calld->slices, calld->incoming_slice); if (calld->send_length == calld->slices.length) { finish_send_message(exec_ctx, elem); } else { continue_send_message(exec_ctx, elem); } }
static void continue_send_message(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) { call_data *calld = elem->call_data; uint8_t *wrptr = calld->payload_bytes; while (grpc_byte_stream_next(exec_ctx, calld->send_op.send_message, &calld->incoming_slice, ~(size_t)0, &calld->got_slice)) { memcpy(wrptr, GRPC_SLICE_START_PTR(calld->incoming_slice), GRPC_SLICE_LENGTH(calld->incoming_slice)); wrptr += GRPC_SLICE_LENGTH(calld->incoming_slice); grpc_slice_buffer_add(&calld->slices, calld->incoming_slice); if (calld->send_length == calld->slices.length) { calld->send_message_blocked = false; break; } } }
static void got_slice(grpc_exec_ctx *exec_ctx, void *elemp, grpc_error *error) { grpc_call_element *elem = elemp; call_data *calld = elem->call_data; calld->send_message_blocked = false; grpc_slice_buffer_add(&calld->slices, calld->incoming_slice); if (calld->send_length == calld->slices.length) { /* Pass down the original send_message op that was blocked.*/ grpc_slice_buffer_stream_init(&calld->replacement_stream, &calld->slices, calld->send_flags); calld->send_op.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); } else { continue_send_message(exec_ctx, elem); } }
static void read_callback(uv_stream_t *stream, ssize_t nread, const uv_buf_t *buf) { grpc_slice sub; grpc_error *error; grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; grpc_tcp *tcp = stream->data; grpc_closure *cb = tcp->read_cb; if (nread == 0) { // Nothing happened. Wait for the next callback return; } TCP_UNREF(&exec_ctx, tcp, "read"); tcp->read_cb = NULL; // TODO(murgatroid99): figure out what the return value here means uv_read_stop(stream); if (nread == UV_EOF) { error = GRPC_ERROR_CREATE("EOF"); } else if (nread > 0) { // Successful read sub = grpc_slice_sub_no_ref(tcp->read_slice, 0, (size_t)nread); grpc_slice_buffer_add(tcp->read_slices, sub); error = GRPC_ERROR_NONE; if (grpc_tcp_trace) { size_t i; const char *str = grpc_error_string(error); gpr_log(GPR_DEBUG, "read: error=%s", str); for (i = 0; i < tcp->read_slices->count; i++) { char *dump = grpc_dump_slice(tcp->read_slices->slices[i], GPR_DUMP_HEX | GPR_DUMP_ASCII); gpr_log(GPR_DEBUG, "READ %p (peer=%s): %s", tcp, tcp->peer_string, dump); gpr_free(dump); } } } else { // nread < 0: Error error = GRPC_ERROR_CREATE("TCP Read failed"); } grpc_closure_sched(&exec_ctx, cb, error); grpc_exec_ctx_finish(&exec_ctx); }
static grpc_error *init_data_frame_parser(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t) { grpc_chttp2_stream *s = grpc_chttp2_parsing_lookup_stream(t, t->incoming_stream_id); grpc_error *err = GRPC_ERROR_NONE; err = update_incoming_window(exec_ctx, t, s); if (err != GRPC_ERROR_NONE) { goto error_handler; } if (s == NULL) { return init_skip_frame_parser(exec_ctx, t, 0); } s->stats.incoming.framing_bytes += 9; if (err == GRPC_ERROR_NONE && s->read_closed) { return init_skip_frame_parser(exec_ctx, t, 0); } if (err == GRPC_ERROR_NONE) { err = grpc_chttp2_data_parser_begin_frame( &s->data_parser, t->incoming_frame_flags, s->id, s); } error_handler: if (err == GRPC_ERROR_NONE) { t->incoming_stream = s; /* t->parser = grpc_chttp2_data_parser_parse;*/ t->parser = grpc_chttp2_data_parser_parse; t->parser_data = &s->data_parser; return GRPC_ERROR_NONE; } else if (grpc_error_get_int(err, GRPC_ERROR_INT_STREAM_ID, NULL)) { /* handle stream errors by closing the stream */ if (s != NULL) { grpc_chttp2_mark_stream_closed(exec_ctx, t, s, true, false, err); } grpc_slice_buffer_add( &t->qbuf, grpc_chttp2_rst_stream_create(t->incoming_stream_id, GRPC_HTTP2_PROTOCOL_ERROR, &s->stats.outgoing)); return init_skip_frame_parser(exec_ctx, t, 0); } else { return err; } }
static grpc_error *on_handshake_next_done_locked( grpc_exec_ctx *exec_ctx, security_handshaker *h, tsi_result result, const unsigned char *bytes_to_send, size_t bytes_to_send_size, tsi_handshaker_result *handshaker_result) { grpc_error *error = GRPC_ERROR_NONE; // Read more if we need to. if (result == TSI_INCOMPLETE_DATA) { GPR_ASSERT(bytes_to_send_size == 0); grpc_endpoint_read(exec_ctx, h->args->endpoint, h->args->read_buffer, &h->on_handshake_data_received_from_peer); return error; } if (result != TSI_OK) { return grpc_set_tsi_error_result( GRPC_ERROR_CREATE_FROM_STATIC_STRING("Handshake failed"), result); } // Update handshaker result. if (handshaker_result != NULL) { GPR_ASSERT(h->handshaker_result == NULL); h->handshaker_result = handshaker_result; } if (bytes_to_send_size > 0) { // Send data to peer, if needed. grpc_slice to_send = grpc_slice_from_copied_buffer( (const char *)bytes_to_send, bytes_to_send_size); grpc_slice_buffer_reset_and_unref_internal(exec_ctx, &h->outgoing); grpc_slice_buffer_add(&h->outgoing, to_send); grpc_endpoint_write(exec_ctx, h->args->endpoint, &h->outgoing, &h->on_handshake_data_sent_to_peer); } else if (handshaker_result == NULL) { // There is nothing to send, but need to read from peer. grpc_endpoint_read(exec_ctx, h->args->endpoint, h->args->read_buffer, &h->on_handshake_data_received_from_peer); } else { // Handshake has finished, check peer and so on. error = check_peer_locked(exec_ctx, h); } return error; }
grpc_endpoint *grpc_secure_endpoint_create( struct tsi_frame_protector *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; grpc_slice_buffer_init(&ep->leftover_bytes); for (i = 0; i < leftover_nslices; i++) { grpc_slice_buffer_add(&ep->leftover_bytes, grpc_slice_ref(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); gpr_mu_init(&ep->protector_mu); gpr_ref_init(&ep->ref, 1); return &ep->base; }