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/*
*
* Copyright 2015-2016 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 <signal.h>
#include <string.h>
#include <memory>
#include <mutex>
#include <sstream>
#include <string>
#ifdef __FreeBSD__
#include <sys/wait.h>
#endif
#include <grpc/support/log.h>
#include "src/core/lib/gprpp/env.h"
#include "test/core/util/port.h"
#include "test/cpp/util/subprocess.h"
using grpc::SubProcess;
constexpr auto kNumWorkers = 2;
static SubProcess* g_driver;
static SubProcess* g_workers[kNumWorkers];
template <class T>
std::string as_string(const T& val) {
std::ostringstream out;
out << val;
return out.str();
}
static void sighandler(int /*sig*/) {
const int errno_saved = errno;
if (g_driver != nullptr) g_driver->Interrupt();
for (int i = 0; i < kNumWorkers; ++i) {
if (g_workers[i]) g_workers[i]->Interrupt();
}
errno = errno_saved;
}
static void register_sighandler() {
struct sigaction act;
memset(&act, 0, sizeof(act));
act.sa_handler = sighandler;
sigaction(SIGINT, &act, nullptr);
sigaction(SIGTERM, &act, nullptr);
}
static void LogStatus(int status, const char* label) {
if (WIFEXITED(status)) {
gpr_log(GPR_INFO, "%s: subprocess exited with status %d", label,
WEXITSTATUS(status));
} else if (WIFSIGNALED(status)) {
gpr_log(GPR_INFO, "%s: subprocess terminated with signal %d", label,
WTERMSIG(status));
} else {
gpr_log(GPR_INFO, "%s: unknown subprocess status: %d", label, status);
}
}
int main(int argc, char** argv) {
register_sighandler();
std::string my_bin = argv[0];
std::string bin_dir = my_bin.substr(0, my_bin.rfind('/'));
std::ostringstream env;
bool first = true;
for (int i = 0; i < kNumWorkers; i++) {
const auto driver_port = grpc_pick_unused_port_or_die();
// ServerPort can be used or not later depending on the type of worker
// but we like to issue all ports required here to avoid port conflict.
const auto server_port = grpc_pick_unused_port_or_die();
std::vector<std::string> args = {bin_dir + "/qps_worker", "-driver_port",
as_string(driver_port), "-server_port",
as_string(server_port)};
g_workers[i] = new SubProcess(args);
if (!first) env << ",";
env << "localhost:" << driver_port;
first = false;
}
grpc_core::SetEnv("QPS_WORKERS", env.str().c_str());
std::vector<std::string> args = {bin_dir + "/qps_json_driver"};
for (int i = 1; i < argc; i++) {
args.push_back(argv[i]);
}
g_driver = new SubProcess(args);
const int driver_join_status = g_driver->Join();
if (driver_join_status != 0) {
LogStatus(driver_join_status, "driver");
}
for (int i = 0; i < kNumWorkers; ++i) {
if (g_workers[i]) g_workers[i]->Interrupt();
}
for (int i = 0; i < kNumWorkers; ++i) {
if (g_workers[i]) {
const int worker_status = g_workers[i]->Join();
if (worker_status != 0) {
LogStatus(worker_status, "worker");
}
}
}
delete g_driver;
g_driver = nullptr;
for (int i = 0; i < kNumWorkers; ++i) {
if (g_workers[i] != nullptr) {
delete g_workers[i];
}
}
GPR_ASSERT(driver_join_status == 0);
}
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