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#include "simple_server.h"
#include <yt/cpp/mapreduce/http/http.h>
#include <yt/cpp/mapreduce/interface/config.h>
#include <library/cpp/threading/future/async.h>
#include <library/cpp/http/io/stream.h>
#include <library/cpp/testing/gtest/gtest.h>
#include <library/cpp/testing/common/network.h>
#include <util/string/builder.h>
#include <util/stream/tee.h>
#include <util/system/thread.h>
using namespace NYT;
namespace {
void ParseFirstLine(const TString firstLine, TString& method, TString& host , ui64& port, TString& command)
{
size_t idx = firstLine.find_first_of(' ');
method = firstLine.substr(0, idx);
size_t idx2 = firstLine.find_first_of(':', idx + 1);
host = firstLine.substr(idx + 1, idx2 - idx - 1);
idx = firstLine.find_first_of('/', idx2 + 1);
port = std::atoi(firstLine.substr(idx2 + 1, idx - idx2 - 1).c_str());
idx2 = firstLine.find_first_of(' ', idx + 1);
command = firstLine.substr(idx, idx2 - idx);
}
} // namespace
THolder<TSimpleServer> CreateSimpleHttpServer()
{
auto port = NTesting::GetFreePort();
return MakeHolder<TSimpleServer>(
port,
[] (IInputStream* input, IOutputStream* output) {
try {
while (true) {
THttpInput httpInput(input);
httpInput.ReadAll();
THttpOutput httpOutput(output);
httpOutput.EnableKeepAlive(true);
httpOutput << "HTTP/1.1 200 OK\r\n";
httpOutput << "\r\n";
for (size_t i = 0; i != 10000; ++i) {
httpOutput << "The grass was greener";
}
httpOutput.Flush();
}
} catch (const std::exception&) {
}
});
}
THolder<TSimpleServer> CreateProxyHttpServer()
{
auto port = NTesting::GetFreePort();
return MakeHolder<TSimpleServer>(
port,
[] (IInputStream* input, IOutputStream* output) {
try {
while (true) {
THttpInput httpInput(input);
const TString inputStr = httpInput.FirstLine();
auto headers = httpInput.Headers();
TString method, command, host;
ui64 port;
ParseFirstLine(inputStr, method, host, port, command);
THttpRequest request;
const TString hostName = ::TStringBuilder() << host << ":" << port;
request.Connect(hostName);
auto header = THttpHeader(method, command);
request.StartRequest(header);
request.FinishRequest();
auto res = request.GetResponseStream();
THttpOutput httpOutput(output);
httpOutput.EnableKeepAlive(true);
auto strRes = res->ReadAll();
httpOutput << "HTTP/1.1 200 OK\r\n";
httpOutput << "\r\n";
httpOutput << strRes;
httpOutput.Flush();
}
} catch (const std::exception&) {
}
});
}
class TConnectionPoolConfigGuard
{
public:
TConnectionPoolConfigGuard(int newSize)
{
OldValue_ = TConfig::Get()->ConnectionPoolSize;
TConfig::Get()->ConnectionPoolSize = newSize;
}
~TConnectionPoolConfigGuard()
{
TConfig::Get()->ConnectionPoolSize = OldValue_;
}
private:
int OldValue_;
};
class TFuncThread
: public ISimpleThread
{
public:
using TFunc = std::function<void()>;
public:
TFuncThread(const TFunc& func)
: Func_(func)
{ }
void* ThreadProc() noexcept override {
Func_();
return nullptr;
}
private:
TFunc Func_;
};
TEST(TConnectionPool, TestReleaseUnread)
{
auto simpleServer = CreateSimpleHttpServer();
const TString hostName = ::TStringBuilder() << "localhost:" << simpleServer->GetPort();
for (size_t i = 0; i != 10; ++i) {
THttpRequest request;
request.Connect(hostName);
request.StartRequest(THttpHeader("GET", "foo"));
request.FinishRequest();
request.GetResponseStream();
}
}
TEST(TConnectionPool, TestProxy)
{
auto simpleServer = CreateSimpleHttpServer();
auto simpleServer2 = CreateProxyHttpServer();
const TString hostName = ::TStringBuilder() << "localhost:" << simpleServer->GetPort();
const TString hostName2 = ::TStringBuilder() << "localhost:" << simpleServer2->GetPort();
for (size_t i = 0; i != 10; ++i) {
THttpRequest request;
request.Connect(hostName2);
auto header = THttpHeader("GET", "foo");
header.SetProxyAddress(hostName2);
header.SetHostPort(hostName);
request.StartRequest(header);
request.FinishRequest();
request.GetResponseStream();
}
}
TEST(TConnectionPool, TestConcurrency)
{
TConnectionPoolConfigGuard g(1);
auto simpleServer = CreateSimpleHttpServer();
const TString hostName = ::TStringBuilder() << "localhost:" << simpleServer->GetPort();
auto threadPool = CreateThreadPool(20);
const auto func = [&] {
for (int i = 0; i != 100; ++i) {
THttpRequest request;
request.Connect(hostName);
request.StartRequest(THttpHeader("GET", "foo"));
request.FinishRequest();
auto res = request.GetResponseStream();
res->ReadAll();
}
};
TVector<THolder<TFuncThread>> threads;
for (int i = 0; i != 10; ++i) {
threads.push_back(MakeHolder<TFuncThread>(func));
};
for (auto& t : threads) {
t->Start();
}
for (auto& t : threads) {
t->Join();
}
}
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