| /* |
| * |
| * Copyright 2016 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/log.h> |
| #include <grpc/support/time.h> |
| |
| #include "src/core/lib/gpr/host_port.h" |
| #include "test/core/end2end/data/ssl_test_data.h" |
| #include "test/core/util/cmdline.h" |
| #include "test/core/util/memory_counters.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_op metadata_ops[2]; |
| static grpc_op snapshot_ops[5]; |
| static grpc_op status_op; |
| static int got_sigint = 0; |
| static grpc_byte_buffer* payload_buffer = nullptr; |
| static grpc_byte_buffer* terminal_buffer = nullptr; |
| static int was_cancelled = 2; |
| |
| static void* tag(intptr_t t) { return (void*)t; } |
| |
| typedef enum { |
| FLING_SERVER_NEW_REQUEST = 1, |
| FLING_SERVER_SEND_INIT_METADATA, |
| FLING_SERVER_WAIT_FOR_DESTROY, |
| FLING_SERVER_SEND_STATUS_FLING_CALL, |
| FLING_SERVER_SEND_STATUS_SNAPSHOT, |
| FLING_SERVER_BATCH_SEND_STATUS_FLING_CALL |
| } fling_server_tags; |
| |
| typedef struct { |
| fling_server_tags state; |
| grpc_call* call; |
| grpc_call_details call_details; |
| grpc_metadata_array request_metadata_recv; |
| grpc_metadata_array initial_metadata_send; |
| } fling_call; |
| |
| // hold up to 10000 calls and 6 snaphost calls |
| static fling_call calls[100006]; |
| |
| static void request_call_unary(int call_idx) { |
| if (call_idx == static_cast<int>(sizeof(calls) / sizeof(fling_call))) { |
| gpr_log(GPR_INFO, "Used all call slots (10000) on server. Server exit."); |
| _exit(0); |
| } |
| grpc_metadata_array_init(&calls[call_idx].request_metadata_recv); |
| grpc_server_request_call( |
| server, &calls[call_idx].call, &calls[call_idx].call_details, |
| &calls[call_idx].request_metadata_recv, cq, cq, &calls[call_idx]); |
| } |
| |
| static void send_initial_metadata_unary(void* tag) { |
| grpc_metadata_array_init( |
| &(*static_cast<fling_call*>(tag)).initial_metadata_send); |
| metadata_ops[0].op = GRPC_OP_SEND_INITIAL_METADATA; |
| metadata_ops[0].data.send_initial_metadata.count = 0; |
| |
| GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch((*(fling_call*)tag).call, |
| metadata_ops, 1, tag, |
| nullptr)); |
| } |
| |
| static void send_status(void* tag) { |
| status_op.op = GRPC_OP_SEND_STATUS_FROM_SERVER; |
| status_op.data.send_status_from_server.status = GRPC_STATUS_OK; |
| status_op.data.send_status_from_server.trailing_metadata_count = 0; |
| grpc_slice details = grpc_slice_from_static_string(""); |
| status_op.data.send_status_from_server.status_details = &details; |
| |
| GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch((*(fling_call*)tag).call, |
| &status_op, 1, tag, |
| nullptr)); |
| } |
| |
| static void send_snapshot(void* tag, struct grpc_memory_counters* snapshot) { |
| grpc_op* op; |
| |
| grpc_slice snapshot_slice = |
| grpc_slice_new(snapshot, sizeof(*snapshot), gpr_free); |
| payload_buffer = grpc_raw_byte_buffer_create(&snapshot_slice, 1); |
| grpc_metadata_array_init( |
| &(*static_cast<fling_call*>(tag)).initial_metadata_send); |
| |
| op = snapshot_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; |
| grpc_slice details = grpc_slice_from_static_string(""); |
| op->data.send_status_from_server.status_details = &details; |
| op++; |
| op->op = GRPC_OP_RECV_CLOSE_ON_SERVER; |
| op->data.recv_close_on_server.cancelled = &was_cancelled; |
| op++; |
| |
| GPR_ASSERT(GRPC_CALL_OK == |
| grpc_call_start_batch((*(fling_call*)tag).call, snapshot_ops, |
| (size_t)(op - snapshot_ops), tag, nullptr)); |
| } |
| /* 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_memory_counters_init(); |
| grpc_event ev; |
| 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_ASSERT(argc >= 1); |
| fake_argv[0] = argv[0]; |
| grpc_test_init(1, fake_argv); |
| |
| grpc_init(); |
| srand(static_cast<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); |
| |
| struct grpc_memory_counters before_server_create = |
| grpc_memory_counters_snapshot(); |
| 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); |
| |
| struct grpc_memory_counters after_server_create = |
| grpc_memory_counters_snapshot(); |
| |
| gpr_free(addr_buf); |
| addr = addr_buf = nullptr; |
| |
| // initialize call instances |
| for (int i = 0; i < static_cast<int>(sizeof(calls) / sizeof(fling_call)); |
| i++) { |
| grpc_call_details_init(&calls[i].call_details); |
| calls[i].state = FLING_SERVER_NEW_REQUEST; |
| } |
| |
| int next_call_idx = 0; |
| struct grpc_memory_counters current_snapshot; |
| |
| request_call_unary(next_call_idx); |
| |
| 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); |
| fling_call* s = static_cast<fling_call*>(ev.tag); |
| switch (ev.type) { |
| case GRPC_OP_COMPLETE: |
| switch (s->state) { |
| case FLING_SERVER_NEW_REQUEST: |
| request_call_unary(++next_call_idx); |
| if (0 == grpc_slice_str_cmp(s->call_details.method, |
| "/Reflector/reflectUnary")) { |
| s->state = FLING_SERVER_SEND_INIT_METADATA; |
| send_initial_metadata_unary(s); |
| } else if (0 == |
| grpc_slice_str_cmp(s->call_details.method, |
| "Reflector/GetBeforeSvrCreation")) { |
| s->state = FLING_SERVER_SEND_STATUS_SNAPSHOT; |
| send_snapshot(s, &before_server_create); |
| } else if (0 == |
| grpc_slice_str_cmp(s->call_details.method, |
| "Reflector/GetAfterSvrCreation")) { |
| s->state = FLING_SERVER_SEND_STATUS_SNAPSHOT; |
| send_snapshot(s, &after_server_create); |
| } else if (0 == grpc_slice_str_cmp(s->call_details.method, |
| "Reflector/SimpleSnapshot")) { |
| s->state = FLING_SERVER_SEND_STATUS_SNAPSHOT; |
| current_snapshot = grpc_memory_counters_snapshot(); |
| send_snapshot(s, ¤t_snapshot); |
| } else if (0 == grpc_slice_str_cmp(s->call_details.method, |
| "Reflector/DestroyCalls")) { |
| s->state = FLING_SERVER_BATCH_SEND_STATUS_FLING_CALL; |
| current_snapshot = grpc_memory_counters_snapshot(); |
| send_snapshot(s, ¤t_snapshot); |
| } else { |
| gpr_log(GPR_ERROR, "Wrong call method"); |
| } |
| break; |
| case FLING_SERVER_SEND_INIT_METADATA: |
| s->state = FLING_SERVER_WAIT_FOR_DESTROY; |
| break; |
| case FLING_SERVER_WAIT_FOR_DESTROY: |
| break; |
| case FLING_SERVER_SEND_STATUS_FLING_CALL: |
| grpc_call_unref(s->call); |
| grpc_call_details_destroy(&s->call_details); |
| grpc_metadata_array_destroy(&s->initial_metadata_send); |
| grpc_metadata_array_destroy(&s->request_metadata_recv); |
| break; |
| case FLING_SERVER_BATCH_SEND_STATUS_FLING_CALL: |
| for (int k = 0; |
| k < static_cast<int>(sizeof(calls) / sizeof(fling_call)); |
| ++k) { |
| if (calls[k].state == FLING_SERVER_WAIT_FOR_DESTROY) { |
| calls[k].state = FLING_SERVER_SEND_STATUS_FLING_CALL; |
| send_status(&calls[k]); |
| } |
| } |
| // no break here since we want to continue to case |
| // FLING_SERVER_SEND_STATUS_SNAPSHOT to destroy the snapshot call |
| /* fallthrough */ |
| case FLING_SERVER_SEND_STATUS_SNAPSHOT: |
| grpc_byte_buffer_destroy(payload_buffer); |
| grpc_byte_buffer_destroy(terminal_buffer); |
| grpc_call_unref(s->call); |
| grpc_call_details_destroy(&s->call_details); |
| grpc_metadata_array_destroy(&s->initial_metadata_send); |
| grpc_metadata_array_destroy(&s->request_metadata_recv); |
| terminal_buffer = nullptr; |
| payload_buffer = nullptr; |
| break; |
| } |
| break; |
| case GRPC_QUEUE_SHUTDOWN: |
| GPR_ASSERT(shutdown_started); |
| shutdown_finished = 1; |
| break; |
| case GRPC_QUEUE_TIMEOUT: |
| break; |
| } |
| } |
| |
| grpc_server_destroy(server); |
| grpc_completion_queue_destroy(cq); |
| grpc_shutdown(); |
| grpc_memory_counters_destroy(); |
| return 0; |
| } |