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