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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>
#include "test/cpp/qps/histogram.h"
using std::list;
using std::thread;
using std::unique_ptr;
using std::vector;
namespace grpc {
namespace testing {
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;
}
}
}
ScenarioResult RunScenario(const ClientConfig& initial_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");
ClientConfig client_config = initial_client_config;
// TODO(ctiller): support running multiple configurations, and binpack
// client/server pairs
// to available workers
GPR_ASSERT(workers.size() >= num_clients + num_servers);
// Trim to just what we need
workers.resize(num_clients + num_servers);
// Start servers
struct ServerData {
unique_ptr<Worker::Stub> stub;
unique_ptr<ClientReaderWriter<ServerArgs, ServerStatus>> stream;
};
vector<ServerData> servers;
for (size_t i = 0; i < num_servers; i++) {
ServerData sd;
sd.stub = std::move(Worker::NewStub(
CreateChannel(workers[i], InsecureCredentials(), ChannelArguments())));
ServerArgs args;
*args.mutable_setup() = server_config;
sd.stream = std::move(sd.stub->RunServer(alloc_context()));
GPR_ASSERT(sd.stream->Write(args));
ServerStatus init_status;
GPR_ASSERT(sd.stream->Read(&init_status));
char* host;
char* driver_port;
char* cli_target;
gpr_split_host_port(workers[i].c_str(), &host, &driver_port);
gpr_join_host_port(&cli_target, host, init_status.port());
client_config.add_server_targets(cli_target);
gpr_free(host);
gpr_free(driver_port);
gpr_free(cli_target);
servers.push_back(std::move(sd));
}
// Start clients
struct ClientData {
unique_ptr<Worker::Stub> stub;
unique_ptr<ClientReaderWriter<ClientArgs, ClientStatus>> stream;
};
vector<ClientData> clients;
for (size_t i = 0; i < num_clients; i++) {
ClientData cd;
cd.stub = std::move(Worker::NewStub(CreateChannel(
workers[i + num_servers], InsecureCredentials(), ChannelArguments())));
ClientArgs args;
*args.mutable_setup() = client_config;
cd.stream = std::move(cd.stub->RunTest(alloc_context()));
GPR_ASSERT(cd.stream->Write(args));
ClientStatus init_status;
GPR_ASSERT(cd.stream->Read(&init_status));
clients.push_back(std::move(cd));
}
// Let everything warmup
gpr_log(GPR_INFO, "Warming up");
gpr_timespec start = gpr_now();
gpr_sleep_until(gpr_time_add(start, gpr_time_from_seconds(5)));
// Start a run
gpr_log(GPR_INFO, "Starting");
ServerArgs server_mark;
server_mark.mutable_mark();
ClientArgs client_mark;
client_mark.mutable_mark();
for (auto& server : servers) {
GPR_ASSERT(server.stream->Write(server_mark));
}
for (auto& client : clients) {
GPR_ASSERT(client.stream->Write(client_mark));
}
ServerStatus server_status;
ClientStatus client_status;
for (auto& server : servers) {
GPR_ASSERT(server.stream->Read(&server_status));
}
for (auto& client : clients) {
GPR_ASSERT(client.stream->Read(&client_status));
}
// Wait some time
gpr_log(GPR_INFO, "Running");
gpr_sleep_until(gpr_time_add(start, gpr_time_from_seconds(15)));
// Finish a run
ScenarioResult result;
gpr_log(GPR_INFO, "Finishing");
for (auto& server : servers) {
GPR_ASSERT(server.stream->Write(server_mark));
}
for (auto& client : clients) {
GPR_ASSERT(client.stream->Write(client_mark));
}
for (auto& server : servers) {
GPR_ASSERT(server.stream->Read(&server_status));
const auto& stats = server_status.stats();
result.server_resources.push_back(ResourceUsage{
stats.time_elapsed(), stats.time_user(), stats.time_system()});
}
for (auto& client : clients) {
GPR_ASSERT(client.stream->Read(&client_status));
const auto& stats = client_status.stats();
result.latencies.MergeProto(stats.latencies());
result.client_resources.push_back(ResourceUsage{
stats.time_elapsed(), stats.time_user(), stats.time_system()});
}
for (auto& client : clients) {
GPR_ASSERT(client.stream->WritesDone());
GPR_ASSERT(client.stream->Finish().IsOk());
}
for (auto& server : servers) {
GPR_ASSERT(server.stream->WritesDone());
GPR_ASSERT(server.stream->Finish().IsOk());
}
return result;
}
} // namespace testing
} // namespace grpc
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