| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #include <grpc/grpc.h> |
| #include <grpc/grpc_security.h> |
| |
| #include <signal.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <time.h> |
| #ifndef _WIN32 |
| /* This is for _exit() below, which is temporary. */ |
| #include <unistd.h> |
| #endif |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/cmdline.h> |
| #include <grpc/support/host_port.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/time.h> |
| #include "src/core/lib/profiling/timers.h" |
| #include "test/core/end2end/data/ssl_test_data.h" |
| #include "test/core/util/grpc_profiler.h" |
| #include "test/core/util/port.h" |
| #include "test/core/util/test_config.h" |
| |
| static grpc_completion_queue* cq; |
| static grpc_server* server; |
| static grpc_call* call; |
| static grpc_call_details call_details; |
| static grpc_metadata_array request_metadata_recv; |
| static grpc_metadata_array initial_metadata_send; |
| static grpc_byte_buffer* payload_buffer = nullptr; |
| /* Used to drain the terminal read in unary calls. */ |
| static grpc_byte_buffer* terminal_buffer = nullptr; |
| |
| static grpc_op read_op; |
| static grpc_op metadata_send_op; |
| static grpc_op write_op; |
| static grpc_op status_op[2]; |
| static int was_cancelled = 2; |
| static grpc_op unary_ops[6]; |
| static int got_sigint = 0; |
| |
| static void* tag(intptr_t t) { return (void*)t; } |
| |
| typedef enum { |
| FLING_SERVER_NEW_REQUEST = 1, |
| FLING_SERVER_READ_FOR_UNARY, |
| FLING_SERVER_BATCH_OPS_FOR_UNARY, |
| FLING_SERVER_SEND_INIT_METADATA_FOR_STREAMING, |
| FLING_SERVER_READ_FOR_STREAMING, |
| FLING_SERVER_WRITE_FOR_STREAMING, |
| FLING_SERVER_SEND_STATUS_FOR_STREAMING |
| } fling_server_tags; |
| |
| typedef struct { |
| gpr_refcount pending_ops; |
| uint32_t flags; |
| } call_state; |
| |
| static void request_call(void) { |
| grpc_metadata_array_init(&request_metadata_recv); |
| GPR_ASSERT(GRPC_CALL_OK == |
| grpc_server_request_call(server, &call, &call_details, |
| &request_metadata_recv, cq, cq, |
| tag(FLING_SERVER_NEW_REQUEST))); |
| } |
| |
| static void handle_unary_method(void) { |
| grpc_op* op; |
| grpc_call_error error; |
| |
| grpc_metadata_array_init(&initial_metadata_send); |
| |
| op = unary_ops; |
| op->op = GRPC_OP_SEND_INITIAL_METADATA; |
| op->data.send_initial_metadata.count = 0; |
| op++; |
| op->op = GRPC_OP_RECV_MESSAGE; |
| op->data.recv_message.recv_message = &terminal_buffer; |
| op++; |
| op->op = GRPC_OP_SEND_MESSAGE; |
| if (payload_buffer == nullptr) { |
| gpr_log(GPR_INFO, "NULL payload buffer !!!"); |
| } |
| op->data.send_message.send_message = payload_buffer; |
| op++; |
| op->op = GRPC_OP_SEND_STATUS_FROM_SERVER; |
| op->data.send_status_from_server.status = GRPC_STATUS_OK; |
| op->data.send_status_from_server.trailing_metadata_count = 0; |
| op->data.send_status_from_server.status_details = nullptr; |
| op++; |
| op->op = GRPC_OP_RECV_CLOSE_ON_SERVER; |
| op->data.recv_close_on_server.cancelled = &was_cancelled; |
| op++; |
| |
| error = grpc_call_start_batch(call, unary_ops, (size_t)(op - unary_ops), |
| tag(FLING_SERVER_BATCH_OPS_FOR_UNARY), nullptr); |
| GPR_ASSERT(GRPC_CALL_OK == error); |
| } |
| |
| static void send_initial_metadata(void) { |
| grpc_call_error error; |
| void* tagarg = tag(FLING_SERVER_SEND_INIT_METADATA_FOR_STREAMING); |
| grpc_metadata_array_init(&initial_metadata_send); |
| metadata_send_op.op = GRPC_OP_SEND_INITIAL_METADATA; |
| metadata_send_op.data.send_initial_metadata.count = 0; |
| error = grpc_call_start_batch(call, &metadata_send_op, 1, tagarg, nullptr); |
| |
| GPR_ASSERT(GRPC_CALL_OK == error); |
| } |
| |
| static void start_read_op(int t) { |
| grpc_call_error error; |
| /* Starting read at server */ |
| read_op.op = GRPC_OP_RECV_MESSAGE; |
| read_op.data.recv_message.recv_message = &payload_buffer; |
| error = grpc_call_start_batch(call, &read_op, 1, tag(t), nullptr); |
| GPR_ASSERT(GRPC_CALL_OK == error); |
| } |
| |
| static void start_write_op(void) { |
| grpc_call_error error; |
| void* tagarg = tag(FLING_SERVER_WRITE_FOR_STREAMING); |
| /* Starting write at server */ |
| write_op.op = GRPC_OP_SEND_MESSAGE; |
| if (payload_buffer == nullptr) { |
| gpr_log(GPR_INFO, "NULL payload buffer !!!"); |
| } |
| write_op.data.send_message.send_message = payload_buffer; |
| error = grpc_call_start_batch(call, &write_op, 1, tagarg, nullptr); |
| GPR_ASSERT(GRPC_CALL_OK == error); |
| } |
| |
| static void start_send_status(void) { |
| grpc_call_error error; |
| void* tagarg = tag(FLING_SERVER_SEND_STATUS_FOR_STREAMING); |
| status_op[0].op = GRPC_OP_SEND_STATUS_FROM_SERVER; |
| status_op[0].data.send_status_from_server.status = GRPC_STATUS_OK; |
| status_op[0].data.send_status_from_server.trailing_metadata_count = 0; |
| status_op[0].data.send_status_from_server.status_details = nullptr; |
| status_op[1].op = GRPC_OP_RECV_CLOSE_ON_SERVER; |
| status_op[1].data.recv_close_on_server.cancelled = &was_cancelled; |
| |
| error = grpc_call_start_batch(call, status_op, 2, tagarg, nullptr); |
| GPR_ASSERT(GRPC_CALL_OK == error); |
| } |
| |
| /* We have some sort of deadlock, so let's not exit gracefully for now. |
| When that is resolved, please remove the #include <unistd.h> above. */ |
| static void sigint_handler(int x) { _exit(0); } |
| |
| int main(int argc, char** argv) { |
| grpc_event ev; |
| call_state* s; |
| char* addr_buf = nullptr; |
| gpr_cmdline* cl; |
| grpc_completion_queue* shutdown_cq; |
| int shutdown_started = 0; |
| int shutdown_finished = 0; |
| |
| int secure = 0; |
| const char* addr = nullptr; |
| |
| char* fake_argv[1]; |
| |
| gpr_timers_set_log_filename("latency_trace.fling_server.txt"); |
| |
| GPR_ASSERT(argc >= 1); |
| fake_argv[0] = argv[0]; |
| grpc_test_init(1, fake_argv); |
| |
| grpc_init(); |
| srand((unsigned)clock()); |
| |
| cl = gpr_cmdline_create("fling server"); |
| gpr_cmdline_add_string(cl, "bind", "Bind host:port", &addr); |
| gpr_cmdline_add_flag(cl, "secure", "Run with security?", &secure); |
| gpr_cmdline_parse(cl, argc, argv); |
| gpr_cmdline_destroy(cl); |
| |
| if (addr == nullptr) { |
| gpr_join_host_port(&addr_buf, "::", grpc_pick_unused_port_or_die()); |
| addr = addr_buf; |
| } |
| gpr_log(GPR_INFO, "creating server on: %s", addr); |
| |
| cq = grpc_completion_queue_create_for_next(nullptr); |
| if (secure) { |
| grpc_ssl_pem_key_cert_pair pem_key_cert_pair = {test_server1_key, |
| test_server1_cert}; |
| grpc_server_credentials* ssl_creds = grpc_ssl_server_credentials_create( |
| nullptr, &pem_key_cert_pair, 1, 0, nullptr); |
| server = grpc_server_create(nullptr, nullptr); |
| GPR_ASSERT(grpc_server_add_secure_http2_port(server, addr, ssl_creds)); |
| grpc_server_credentials_release(ssl_creds); |
| } else { |
| server = grpc_server_create(nullptr, nullptr); |
| GPR_ASSERT(grpc_server_add_insecure_http2_port(server, addr)); |
| } |
| grpc_server_register_completion_queue(server, cq, nullptr); |
| grpc_server_start(server); |
| |
| gpr_free(addr_buf); |
| addr = addr_buf = nullptr; |
| |
| grpc_call_details_init(&call_details); |
| |
| request_call(); |
| |
| grpc_profiler_start("server.prof"); |
| signal(SIGINT, sigint_handler); |
| while (!shutdown_finished) { |
| if (got_sigint && !shutdown_started) { |
| gpr_log(GPR_INFO, "Shutting down due to SIGINT"); |
| |
| shutdown_cq = grpc_completion_queue_create_for_pluck(nullptr); |
| grpc_server_shutdown_and_notify(server, shutdown_cq, tag(1000)); |
| |
| GPR_ASSERT(grpc_completion_queue_pluck( |
| shutdown_cq, tag(1000), |
| grpc_timeout_seconds_to_deadline(5), nullptr) |
| .type == GRPC_OP_COMPLETE); |
| grpc_completion_queue_destroy(shutdown_cq); |
| |
| grpc_completion_queue_shutdown(cq); |
| shutdown_started = 1; |
| } |
| ev = grpc_completion_queue_next( |
| cq, |
| gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), |
| gpr_time_from_micros(1000000, GPR_TIMESPAN)), |
| nullptr); |
| s = static_cast<call_state*>(ev.tag); |
| switch (ev.type) { |
| case GRPC_OP_COMPLETE: |
| switch ((intptr_t)s) { |
| case FLING_SERVER_NEW_REQUEST: |
| if (call != nullptr) { |
| if (0 == grpc_slice_str_cmp(call_details.method, |
| "/Reflector/reflectStream")) { |
| /* Received streaming call. Send metadata here. */ |
| start_read_op(FLING_SERVER_READ_FOR_STREAMING); |
| send_initial_metadata(); |
| } else { |
| /* Received unary call. Can do all ops in one batch. */ |
| start_read_op(FLING_SERVER_READ_FOR_UNARY); |
| } |
| } else { |
| GPR_ASSERT(shutdown_started); |
| } |
| /* request_call(); |
| */ |
| break; |
| case FLING_SERVER_READ_FOR_STREAMING: |
| if (payload_buffer != nullptr) { |
| /* Received payload from client. */ |
| start_write_op(); |
| } else { |
| /* Received end of stream from client. */ |
| start_send_status(); |
| } |
| break; |
| case FLING_SERVER_WRITE_FOR_STREAMING: |
| /* Write completed at server */ |
| grpc_byte_buffer_destroy(payload_buffer); |
| payload_buffer = nullptr; |
| start_read_op(FLING_SERVER_READ_FOR_STREAMING); |
| break; |
| case FLING_SERVER_SEND_INIT_METADATA_FOR_STREAMING: |
| /* Metadata send completed at server */ |
| break; |
| case FLING_SERVER_SEND_STATUS_FOR_STREAMING: |
| /* Send status and close completed at server */ |
| grpc_call_unref(call); |
| if (!shutdown_started) request_call(); |
| break; |
| case FLING_SERVER_READ_FOR_UNARY: |
| /* Finished payload read for unary. Start all reamaining |
| * unary ops in a batch. |
| */ |
| handle_unary_method(); |
| break; |
| case FLING_SERVER_BATCH_OPS_FOR_UNARY: |
| /* Finished unary call. */ |
| grpc_byte_buffer_destroy(payload_buffer); |
| payload_buffer = nullptr; |
| grpc_call_unref(call); |
| if (!shutdown_started) request_call(); |
| break; |
| } |
| break; |
| case GRPC_QUEUE_SHUTDOWN: |
| GPR_ASSERT(shutdown_started); |
| shutdown_finished = 1; |
| break; |
| case GRPC_QUEUE_TIMEOUT: |
| break; |
| } |
| } |
| grpc_profiler_stop(); |
| grpc_call_details_destroy(&call_details); |
| |
| grpc_server_destroy(server); |
| grpc_completion_queue_destroy(cq); |
| grpc_shutdown(); |
| return 0; |
| } |