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// Copyright (C) 2018-2020 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 <netconf/netconf.h>
#include <netconf/netconf_process.h>
#include <netconf/netconf_controller.h>
#include <netconf/netconf_log.h>
#include <asiolink/io_address.h>
#include <asiolink/io_error.h>
#include <cc/command_interpreter.h>
#include <config/timeouts.h>
#include <boost/pointer_cast.hpp>
#include <thread>
using namespace isc::asiolink;
using namespace isc::config;
using namespace isc::data;
using namespace isc::http;
using namespace isc::process;
namespace isc {
namespace netconf {
std::atomic<bool> NetconfProcess::shut_down(false);
NetconfProcess::NetconfProcess(const char* name,
const asiolink::IOServicePtr& io_service)
: DProcessBase(name, io_service, DCfgMgrBasePtr(new NetconfCfgMgr())) {
}
NetconfProcess::~NetconfProcess() {
}
void
NetconfProcess::init() {
}
void
NetconfProcess::run() {
LOG_INFO(netconf_logger, NETCONF_STARTED).arg(VERSION);
try {
// Initialize netconf agent in a thread.
std::thread th([this]() {
try {
if (shouldShutdown()) {
return;
}
// Initialize sysrepo.
agent_.initSysrepo();
if (shouldShutdown()) {
return;
}
// Get the configuration manager.
NetconfCfgMgrPtr cfg_mgr;
if (shouldShutdown()) {
return;
} else {
cfg_mgr = getNetconfCfgMgr();
}
// Call init.
agent_.init(cfg_mgr);
} catch (...) {
// Should not happen but in case...
std::exception_ptr eptr = std::current_exception();
getIoService()->post([eptr] () {
if (eptr) {
std::rethrow_exception(eptr);
}
});
}
});
// Detach the thread.
th.detach();
// Let's process incoming data or expiring timers in a loop until
// shutdown condition is detected.
while (!shouldShutdown()) {
runIO();
}
stopIOService();
} catch (const std::exception& ex) {
LOG_FATAL(netconf_logger, NETCONF_FAILED).arg(ex.what());
try {
stopIOService();
} catch (...) {
// Ignore double errors
}
isc_throw(DProcessBaseError,
"Process run method failed: " << ex.what());
}
LOG_DEBUG(netconf_logger, isc::log::DBGLVL_START_SHUT, NETCONF_RUN_EXIT);
}
size_t
NetconfProcess::runIO() {
size_t cnt = getIoService()->get_io_service().poll();
if (!cnt) {
cnt = getIoService()->get_io_service().run_one();
}
return (cnt);
}
isc::data::ConstElementPtr
NetconfProcess::shutdown(isc::data::ConstElementPtr /*args*/) {
shut_down = true;
setShutdownFlag(true);
return (isc::config::createAnswer(0, "Netconf is shutting down"));
}
isc::data::ConstElementPtr
NetconfProcess::configure(isc::data::ConstElementPtr config_set,
bool check_only) {
ConstElementPtr answer =
getCfgMgr()->simpleParseConfig(config_set, check_only);
int rcode = 0;
config::parseAnswer(rcode, answer);
return (answer);
}
NetconfCfgMgrPtr
NetconfProcess::getNetconfCfgMgr() {
return (boost::dynamic_pointer_cast<NetconfCfgMgr>(getCfgMgr()));
}
} // namespace isc::netconf
} // namespace isc
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