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TreadmillFB303.cpp
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TreadmillFB303.cpp
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/*
* Copyright (c) 2014, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*/
#include "TreadmillFB303.h"
#include "Scheduler.h"
#include <memory>
#include <folly/Singleton.h>
#include <thrift/lib/cpp2/server/ThriftServer.h>
#include "common/services/cpp/TLSConfig.h"
using fb_status = facebook::fb303::cpp2::fb_status;
using ::treadmill::ResumeRequest;
using ::treadmill::ResumeResponse;
using namespace facebook::services;
namespace facebook {
namespace windtunnel {
namespace treadmill {
TreadmillFB303::TreadmillFB303(Scheduler& scheduler)
: FacebookBase2("Treadmill"),
status_(fb_status::STARTING),
aliveSince_(time(nullptr)),
scheduler_(scheduler) {}
TreadmillFB303::~TreadmillFB303() {}
void TreadmillFB303::setStatus(fb_status status) {
folly::SharedMutex::WriteHolder guard(mutex_);
status_ = status;
}
fb_status TreadmillFB303::getStatus() {
folly::SharedMutex::ReadHolder guard(mutex_);
return status_;
}
void TreadmillFB303::getStatusDetails(std::string& _return) {
_return = fb303::cpp2::_fb_status_VALUES_TO_NAMES.at(getStatus());
}
int64_t TreadmillFB303::aliveSince() {
folly::SharedMutex::ReadHolder guard(mutex_);
return aliveSince_;
}
void TreadmillFB303::getCounters(std::map<std::string, int64_t>& _return) {
fb303::FacebookBase2::getCounters(_return);
}
bool TreadmillFB303::pause() {
LOG(INFO) << "TreadmillHandler::pause";
scheduler_.pause();
return true;
}
bool TreadmillFB303::resume() {
LOG(INFO) << "TreadmillHandler::resume";
scheduler_.resume();
return true;
}
folly::Future<std::unique_ptr<ResumeResponse>> TreadmillFB303::future_resume2(
std::unique_ptr<ResumeRequest> req) {
LOG(INFO) << "TreadmillHandler::resume2 with phase " << req->get_phaseName();
scheduler_.setPhase(req->get_phaseName());
scheduler_.resume();
auto resp = std::make_unique<ResumeResponse>();
resp->set_success(true);
return folly::makeFuture(std::move(resp));
}
void TreadmillFB303::setRps(int32_t rps) {
LOG(INFO) << "TreadmillHandler::setRps to " << rps;
scheduler_.setRps(rps);
}
namespace {
folly::SharedMutex instance_mutex;
std::shared_ptr<TreadmillFB303> instance;
} // namespace
std::shared_ptr<TreadmillFB303> getGlobalTreadmillFB303() {
folly::SharedMutex::ReadHolder guard(instance_mutex);
if (!instance) {
LOG(FATAL) << "No global Treadmill FB303 instance set";
}
return instance;
}
void TreadmillFB303::make_fb303(
std::shared_ptr<std::thread>& server_thread,
int server_port,
Scheduler& scheduler) {
{
folly::SharedMutex::WriteHolder guard(instance_mutex);
if (instance) {
LOG(FATAL) << "Global Treadmill FB303 instance was already set";
}
instance = std::make_shared<TreadmillFB303>(scheduler);
}
auto server = std::make_shared<apache::thrift::ThriftServer>();
LOG(INFO) << "FB303 running on port " << server_port;
server->setPort(server_port);
server->setInterface(getGlobalTreadmillFB303());
TLSConfig::applyDefaultsToThriftServer(*server);
server_thread.reset(
new std::thread([server]() { server->serve(); }),
[server](std::thread* t) {
server->stop();
t->join();
delete t;
});
}
} // namespace treadmill
} // namespace windtunnel
} // namespace facebook