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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "test/cpp/qps/driver.h"
#include "src/core/support/env.h"
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/host_port.h>
#include <grpc++/channel_arguments.h>
#include <grpc++/client_context.h>
#include <grpc++/create_channel.h>
#include <grpc++/stream.h>
#include <list>
#include <thread>
#include <vector>
using std::list;
using std::thread;
using std::unique_ptr;
using std::vector;
using grpc::string;
using grpc::ChannelArguments;
using grpc::ClientContext;
using grpc::ClientReaderWriter;
using grpc::CreateChannelDeprecated;
using grpc::Status;
using grpc::testing::ClientArgs;
using grpc::testing::ClientConfig;
using grpc::testing::ClientResult;
using grpc::testing::Worker;
using grpc::testing::ServerArgs;
using grpc::testing::ServerConfig;
using grpc::testing::ServerStatus;
#if 0
static vector<string> get_hosts(const string& name) {
char* env = gpr_getenv(name.c_str());
if (!env) return vector<string>();
vector<string> out;
char* p = env;
for (;;) {
char* comma = strchr(p, ',');
if (comma) {
out.emplace_back(p, comma);
p = comma + 1;
} else {
out.emplace_back(p);
gpr_free(env);
return out;
}
}
}
void RunScenario(const ClientConfig& client_config, size_t num_clients,
const ServerConfig& server_config, size_t num_servers) {
// ClientContext allocator (all are destroyed at scope exit)
list<ClientContext> contexts;
auto alloc_context = [&contexts]() {
contexts.emplace_back();
return &contexts.back();
};
// Get client, server lists
auto workers = get_hosts("QPS_WORKERS");
GPR_ASSERT(clients.size() >= num_clients);
GPR_ASSERT(servers.size() >= num_servers);
// Trim to just what we need
clients.resize(num_clients);
servers.resize(num_servers);
// Start servers
vector<unique_ptr<QpsServer::Stub>> server_stubs;
vector<unique_ptr<ClientReaderWriter<ServerArgs, ServerStatus>>> server_streams;
vector<string> server_targets;
for (const auto& target : servers) {
server_stubs.push_back(QpsServer::NewStub(CreateChannelDeprecated(target, ChannelArguments())));
auto* stub = server_stubs.back().get();
ServerArgs args;
*args.mutable_config() = server_config;
server_streams.push_back(stub->RunServer(alloc_context()));
auto* stream = server_streams.back().get();
if (!stream->Write(args)) {
gpr_log(GPR_ERROR, "Failed starting server");
return;
}
ServerStatus init_status;
if (!stream->Read(&init_status)) {
gpr_log(GPR_ERROR, "Failed starting server");
return;
}
char* host;
char* driver_port;
char* cli_target;
gpr_split_host_port(target.c_str(), &host, &driver_port);
gpr_join_host_port(&cli_target, host, init_status.port());
server_targets.push_back(cli_target);
gpr_free(host);
gpr_free(driver_port);
gpr_free(cli_target);
}
// Start clients
class Client {
public:
Client(ClientContext* ctx, const string& target, const ClientArgs& args)
: thread_([ctx, target, args, this]() {
auto stub = QpsClient::NewStub(CreateChannelDeprecated(target, ChannelArguments()));
status_ = stub->RunTest(ctx, args, &result_);
}) {}
~Client() { join(); }
void join() { if (!joined_) { thread_.join(); joined_ = true; } }
const Status& status() const { return status_; }
const ClientResult& result() const { return result_; }
private:
bool joined_ = false;
Status status_;
ClientResult result_;
thread thread_;
};
list<Client> running_clients;
size_t svr_idx = 0;
for (const auto& target : clients) {
ClientArgs args;
*args.mutable_config() = client_config;
for (size_t i = 0; i < num_servers; i++) {
args.add_server_targets(server_targets[svr_idx]);
svr_idx = (svr_idx + 1) % num_servers;
}
running_clients.emplace_back(alloc_context(), target, args);
}
// Finish clients
for (auto& client : running_clients) {
client.join();
if (!client.status().IsOk()) {
gpr_log(GPR_ERROR, "Client failed");
return;
}
}
// Finish servers
for (auto& stream : server_streams) {
ServerStatus final_status;
ServerStatus dummy;
if (!stream->WritesDone() || !stream->Read(&final_status) || stream->Read(&dummy) || !stream->Finish().IsOk()) {
gpr_log(GPR_ERROR, "Server protocol error");
}
}
}
#endif
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