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191 | // Copyright (C) 2022-2024 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#include <config.h>
#include <asiolink/asio_wrapper.h>
#include <asiolink/io_address.h>
#include <asiolink/io_error.h>
#include <asiolink/io_service.h>
#include <mt_tcp_listener_mgr.h><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <tcp_log.h><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
#include <util/multi_threading_mgr.h>
#include <boost/pointer_cast.hpp><--- Include file: not found. Please note: Cppcheck does not need standard library headers to get proper results.
using namespace isc::asiolink;
using namespace isc::tcp;
using namespace isc::util;
namespace isc {
namespace tcp {
MtTcpListenerMgr::MtTcpListenerMgr(TcpListenerFactory listener_factory,
const IOAddress& address,
const uint16_t port,
const uint16_t thread_pool_size /* = 1 */,
TlsContextPtr context /* = () */,
TcpConnectionFilterCallback connection_filter /* = 0 */)
: listener_factory_(listener_factory), address_(address), port_(port),
thread_io_service_(), tcp_listener_(), thread_pool_size_(thread_pool_size),
thread_pool_(), tls_context_(context), connection_filter_(connection_filter),
idle_timeout_(TCP_IDLE_CONNECTION_TIMEOUT) {
}
MtTcpListenerMgr::~MtTcpListenerMgr() {
stop();
}
void
MtTcpListenerMgr::start() {
// We must be in multi-threading mode.
if (!MultiThreadingMgr::instance().getMode()) {
isc_throw(InvalidOperation, "MtTcpListenerMgr cannot be started"
" when multi-threading is disabled");
}
// Punt if we're already started.
if (!isStopped()) {
isc_throw(InvalidOperation, "MtTcpListenerMgr already started!");
}
try {
// Create a new IOService.
thread_io_service_.reset(new IOService());
// Create a new TCPListener derivation using the factory.
tcp_listener_ = listener_factory_(thread_io_service_,
address_,
port_,
tls_context_,
idle_timeout_,
connection_filter_);
// Instruct the HTTP listener to actually open socket, install
// callback and start listening.
tcp_listener_->start();
// Create the thread pool with immediate start.
thread_pool_.reset(new IoServiceThreadPool(thread_io_service_, thread_pool_size_));
// OK, seems like we're good to go.
LOG_DEBUG(tcp_logger, isc::log::DBGLVL_TRACE_BASIC, MT_TCP_LISTENER_MGR_STARTED)
.arg(thread_pool_size_)
.arg(address_)
.arg(port_)
.arg(tls_context_ ? "true" : "false");
} catch (const std::exception& ex) {
if (thread_pool_) {
// Stop the thread pool.
thread_pool_->stop();
}
if (tcp_listener_) {
// Stop the listener.
tcp_listener_->stop();
}
if (thread_io_service_) {
thread_io_service_->stopAndPoll();
thread_io_service_->stop();
}
// Get rid of the thread pool.
thread_pool_.reset();
// Get rid of the listener.
tcp_listener_.reset();
// Ditch the IOService.
thread_io_service_.reset();
isc_throw(Unexpected, "MtTcpListenerMgr::start failed:" << ex.what());
}
}
void
MtTcpListenerMgr::checkPermissions() {
if (thread_pool_) {
thread_pool_->checkPausePermissions();
}
}
void
MtTcpListenerMgr::pause() {
if (thread_pool_) {
thread_pool_->pause();
}
}
void
MtTcpListenerMgr::resume() {
if (thread_pool_) {
thread_pool_->run();
}
}
void
MtTcpListenerMgr::stop() {
// Nothing to do.
if (!thread_io_service_) {
return;
}
LOG_DEBUG(tcp_logger, isc::log::DBGLVL_TRACE_BASIC, MT_TCP_LISTENER_MGR_STOPPING)
.arg(address_)
.arg(port_);
// Stop the thread pool.
thread_pool_->stop();
// Stop the listener.
tcp_listener_->stop();
thread_io_service_->stopAndPoll();
thread_io_service_->stop();
// Get rid of the thread pool.
thread_pool_.reset();
// Get rid of the listener.
tcp_listener_.reset();
// Ditch the IOService.
thread_io_service_.reset();
LOG_DEBUG(tcp_logger, isc::log::DBGLVL_TRACE_BASIC, MT_TCP_LISTENER_MGR_STOPPED)
.arg(address_)
.arg(port_);
}
bool
MtTcpListenerMgr::isRunning() {
if (thread_pool_) {
return (thread_pool_->isRunning());
}
return (false);
}
bool
MtTcpListenerMgr::isStopped() {
if (thread_pool_) {
return (thread_pool_->isStopped());
}
return (true);
}
bool
MtTcpListenerMgr::isPaused() {
if (thread_pool_) {
return (thread_pool_->isPaused());
}
return (false);
}
} // namespace isc::config
} // namespace isc
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