mirror of https://github.com/Icinga/icinga2.git
1535 lines
35 KiB
C++
1535 lines
35 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2017 Icinga Development Team (https://www.icinga.com/) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#include "base/application.hpp"
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#include "base/application.tcpp"
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#include "base/stacktrace.hpp"
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#include "base/timer.hpp"
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#include "base/logger.hpp"
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#include "base/exception.hpp"
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#include "base/objectlock.hpp"
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#include "base/utility.hpp"
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#include "base/loader.hpp"
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#include "base/debug.hpp"
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#include "base/type.hpp"
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#include "base/convert.hpp"
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#include "base/scriptglobal.hpp"
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#include "base/process.hpp"
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#include <boost/algorithm/string/classification.hpp>
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#include <boost/algorithm/string/split.hpp>
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#include <boost/algorithm/string/trim.hpp>
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#include <boost/exception/errinfo_api_function.hpp>
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#include <boost/exception/errinfo_errno.hpp>
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#include <boost/exception/errinfo_file_name.hpp>
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#include <sstream>
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#include <iostream>
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#include <fstream>
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#ifdef __linux__
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#include <sys/prctl.h>
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#endif /* __linux__ */
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using namespace icinga;
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REGISTER_TYPE(Application);
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boost::signals2::signal<void (void)> Application::OnReopenLogs;
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Application::Ptr Application::m_Instance = NULL;
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bool Application::m_ShuttingDown = false;
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bool Application::m_RequestRestart = false;
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bool Application::m_RequestReopenLogs = false;
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pid_t Application::m_ReloadProcess = 0;
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static bool l_Restarting = false;
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static bool l_InExceptionHandler = false;
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int Application::m_ArgC;
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char **Application::m_ArgV;
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double Application::m_StartTime;
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double Application::m_MainTime;
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bool Application::m_ScriptDebuggerEnabled = false;
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double Application::m_LastReloadFailed;
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/**
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* Constructor for the Application class.
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*/
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void Application::OnConfigLoaded(void)
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{
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m_PidFile = NULL;
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ASSERT(m_Instance == NULL);
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m_Instance = this;
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}
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/**
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* Destructor for the application class.
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*/
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void Application::Stop(bool runtimeRemoved)
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{
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m_ShuttingDown = true;
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#ifdef _WIN32
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WSACleanup();
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#endif /* _WIN32 */
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// Getting a shutdown-signal when a restart is in progress usually
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// means that the restart succeeded and the new process wants to take
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// over. Write the PID of the new process to the pidfile before this
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// process exits to keep systemd happy.
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if (l_Restarting) {
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try {
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UpdatePidFile(GetPidPath(), m_ReloadProcess);
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} catch (const std::exception&) {
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/* abort restart */
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Log(LogCritical, "Application", "Cannot update PID file. Aborting restart operation.");
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return;
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}
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Log(LogDebug, "Application")
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<< "Keeping pid '" << m_ReloadProcess << "' open.";
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ClosePidFile(false);
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} else
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ClosePidFile(true);
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ObjectImpl<Application>::Stop(runtimeRemoved);
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}
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Application::~Application(void)
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{
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m_Instance = NULL;
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}
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void Application::Exit(int rc)
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{
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std::cout.flush();
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std::cerr.flush();
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for (const Logger::Ptr& logger : Logger::GetLoggers()) {
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logger->Flush();
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}
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UninitializeBase();
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#ifdef I2_DEBUG
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exit(rc);
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#else /* I2_DEBUG */
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_exit(rc); // Yay, our static destructors are pretty much beyond repair at this point.
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#endif /* I2_DEBUG */
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}
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void Application::InitializeBase(void)
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{
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#ifdef _WIN32
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/* disable GUI-based error messages for LoadLibrary() */
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SetErrorMode(SEM_FAILCRITICALERRORS);
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WSADATA wsaData;
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if (WSAStartup(MAKEWORD(1, 1), &wsaData) != 0) {
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BOOST_THROW_EXCEPTION(win32_error()
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<< boost::errinfo_api_function("WSAStartup")
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<< errinfo_win32_error(WSAGetLastError()));
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}
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#else /* _WIN32 */
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struct sigaction sa;
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memset(&sa, 0, sizeof(sa));
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sa.sa_handler = SIG_IGN;
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sigaction(SIGPIPE, &sa, NULL);
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#endif /* _WIN32 */
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Loader::ExecuteDeferredInitializers();
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/* make sure the thread pool gets initialized */
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GetTP().Start();
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Timer::Initialize();
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}
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void Application::UninitializeBase(void)
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{
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Timer::Uninitialize();
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GetTP().Stop();
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}
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/**
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* Retrieves a pointer to the application singleton object.
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*
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* @returns The application object.
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*/
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Application::Ptr Application::GetInstance(void)
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{
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return m_Instance;
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}
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void Application::SetResourceLimits(void)
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{
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#ifdef __linux__
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rlimit rl;
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# ifdef RLIMIT_NOFILE
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rlim_t fileLimit = GetRLimitFiles();
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if (fileLimit != 0) {
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if (fileLimit < GetDefaultRLimitFiles()) {
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Log(LogWarning, "Application")
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<< "The user-specified value for RLimitFiles cannot be smaller than the default value (" << GetDefaultRLimitFiles() << "). Using the default value instead.";
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fileLimit = GetDefaultRLimitFiles();
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}
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rl.rlim_cur = fileLimit;
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rl.rlim_max = rl.rlim_cur;
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if (setrlimit(RLIMIT_NOFILE, &rl) < 0)
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Log(LogNotice, "Application", "Could not adjust resource limit for open file handles (RLIMIT_NOFILE)");
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# else /* RLIMIT_NOFILE */
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Log(LogNotice, "Application", "System does not support adjusting the resource limit for open file handles (RLIMIT_NOFILE)");
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# endif /* RLIMIT_NOFILE */
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}
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# ifdef RLIMIT_NPROC
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rlim_t processLimit = GetRLimitProcesses();
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if (processLimit != 0) {
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if (processLimit < GetDefaultRLimitProcesses()) {
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Log(LogWarning, "Application")
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<< "The user-specified value for RLimitProcesses cannot be smaller than the default value (" << GetDefaultRLimitProcesses() << "). Using the default value instead.";
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processLimit = GetDefaultRLimitProcesses();
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}
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rl.rlim_cur = processLimit;
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rl.rlim_max = rl.rlim_cur;
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if (setrlimit(RLIMIT_NPROC, &rl) < 0)
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Log(LogNotice, "Application", "Could not adjust resource limit for number of processes (RLIMIT_NPROC)");
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# else /* RLIMIT_NPROC */
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Log(LogNotice, "Application", "System does not support adjusting the resource limit for number of processes (RLIMIT_NPROC)");
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# endif /* RLIMIT_NPROC */
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}
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# ifdef RLIMIT_STACK
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int argc = Application::GetArgC();
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char **argv = Application::GetArgV();
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bool set_stack_rlimit = true;
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for (int i = 0; i < argc; i++) {
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if (strcmp(argv[i], "--no-stack-rlimit") == 0) {
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set_stack_rlimit = false;
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break;
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}
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}
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if (getrlimit(RLIMIT_STACK, &rl) < 0) {
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Log(LogWarning, "Application", "Could not determine resource limit for stack size (RLIMIT_STACK)");
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rl.rlim_max = RLIM_INFINITY;
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}
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rlim_t stackLimit;
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stackLimit = GetRLimitStack();
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if (stackLimit != 0) {
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if (stackLimit < GetDefaultRLimitStack()) {
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Log(LogWarning, "Application")
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<< "The user-specified value for RLimitStack cannot be smaller than the default value (" << GetDefaultRLimitStack() << "). Using the default value instead.";
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stackLimit = GetDefaultRLimitStack();
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}
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if (set_stack_rlimit)
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rl.rlim_cur = stackLimit;
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else
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rl.rlim_cur = rl.rlim_max;
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if (setrlimit(RLIMIT_STACK, &rl) < 0)
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Log(LogNotice, "Application", "Could not adjust resource limit for stack size (RLIMIT_STACK)");
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else if (set_stack_rlimit) {
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char **new_argv = static_cast<char **>(malloc(sizeof(char *) * (argc + 2)));
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if (!new_argv) {
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perror("malloc");
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Exit(EXIT_FAILURE);
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}
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new_argv[0] = argv[0];
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new_argv[1] = strdup("--no-stack-rlimit");
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if (!new_argv[1]) {
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perror("strdup");
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exit(1);
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}
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for (int i = 1; i < argc; i++)
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new_argv[i + 1] = argv[i];
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new_argv[argc + 1] = NULL;
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(void) execvp(new_argv[0], new_argv);
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perror("execvp");
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_exit(EXIT_FAILURE);
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}
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# else /* RLIMIT_STACK */
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Log(LogNotice, "Application", "System does not support adjusting the resource limit for stack size (RLIMIT_STACK)");
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# endif /* RLIMIT_STACK */
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}
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#endif /* __linux__ */
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}
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int Application::GetArgC(void)
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{
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return m_ArgC;
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}
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void Application::SetArgC(int argc)
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{
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m_ArgC = argc;
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}
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char **Application::GetArgV(void)
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{
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return m_ArgV;
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}
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void Application::SetArgV(char **argv)
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{
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m_ArgV = argv;
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}
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/**
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* Processes events for registered sockets and timers and calls whatever
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* handlers have been set up for these events.
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*/
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void Application::RunEventLoop(void)
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{
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Timer::Initialize();
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double lastLoop = Utility::GetTime();
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mainloop:
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while (!m_ShuttingDown && !m_RequestRestart) {
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/* Watches for changes to the system time. Adjusts timers if necessary. */
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Utility::Sleep(2.5);
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if (m_RequestReopenLogs) {
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Log(LogNotice, "Application", "Reopening log files");
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m_RequestReopenLogs = false;
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OnReopenLogs();
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}
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double now = Utility::GetTime();
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double timeDiff = lastLoop - now;
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if (std::fabs(timeDiff) > 15) {
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/* We made a significant jump in time. */
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Log(LogInformation, "Application")
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<< "We jumped "
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<< (timeDiff < 0 ? "forward" : "backward")
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<< " in time: " << std::fabs(timeDiff) << " seconds";
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Timer::AdjustTimers(-timeDiff);
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}
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lastLoop = now;
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}
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if (m_RequestRestart) {
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m_RequestRestart = false; // we are now handling the request, once is enough
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// are we already restarting? ignore request if we already are
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if (l_Restarting)
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goto mainloop;
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l_Restarting = true;
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m_ReloadProcess = StartReloadProcess();
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goto mainloop;
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}
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Log(LogInformation, "Application", "Shutting down...");
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ConfigObject::StopObjects();
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Application::GetInstance()->OnShutdown();
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UninitializeBase();
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}
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bool Application::IsShuttingDown(void)
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{
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return m_ShuttingDown;
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}
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void Application::OnShutdown(void)
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{
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/* Nothing to do here. */
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}
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static void ReloadProcessCallbackInternal(const ProcessResult& pr)
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{
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if (pr.ExitStatus != 0) {
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Application::SetLastReloadFailed(Utility::GetTime());
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Log(LogCritical, "Application", "Found error in config: reloading aborted");
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}
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#ifdef _WIN32
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else
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Application::Exit(7); /* keep this exit code in sync with icinga-app */
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#endif /* _WIN32 */
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}
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static void ReloadProcessCallback(const ProcessResult& pr)
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{
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l_Restarting = false;
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boost::thread t(boost::bind(&ReloadProcessCallbackInternal, pr));
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t.detach();
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}
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pid_t Application::StartReloadProcess(void)
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{
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Log(LogInformation, "Application", "Got reload command: Starting new instance.");
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// prepare arguments
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Array::Ptr args = new Array();
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args->Add(GetExePath(m_ArgV[0]));
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for (int i=1; i < Application::GetArgC(); i++) {
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if (std::string(Application::GetArgV()[i]) != "--reload-internal")
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args->Add(Application::GetArgV()[i]);
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else
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i++; // the next parameter after --reload-internal is the pid, remove that too
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}
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#ifndef _WIN32
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args->Add("--reload-internal");
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args->Add(Convert::ToString(Utility::GetPid()));
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#else /* _WIN32 */
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args->Add("--validate");
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#endif /* _WIN32 */
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Process::Ptr process = new Process(Process::PrepareCommand(args));
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process->SetTimeout(300);
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process->Run(&ReloadProcessCallback);
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return process->GetPID();
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}
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/**
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* Signals the application to shut down during the next
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* execution of the event loop.
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*/
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void Application::RequestShutdown(void)
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{
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Log(LogInformation, "Application", "Received request to shut down.");
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m_ShuttingDown = true;
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}
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/**
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* Signals the application to restart during the next
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* execution of the event loop.
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*/
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void Application::RequestRestart(void)
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{
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m_RequestRestart = true;
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}
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/**
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* Signals the application to reopen log files during the
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* next execution of the event loop.
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*/
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void Application::RequestReopenLogs(void)
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{
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m_RequestReopenLogs = true;
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}
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/**
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* Retrieves the full path of the executable.
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*
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* @param argv0 The first command-line argument.
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* @returns The path.
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*/
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String Application::GetExePath(const String& argv0)
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{
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String executablePath;
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#ifndef _WIN32
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char buffer[MAXPATHLEN];
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if (getcwd(buffer, sizeof(buffer)) == NULL) {
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BOOST_THROW_EXCEPTION(posix_error()
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<< boost::errinfo_api_function("getcwd")
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<< boost::errinfo_errno(errno));
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}
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String workingDirectory = buffer;
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if (argv0[0] != '/')
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executablePath = workingDirectory + "/" + argv0;
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else
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executablePath = argv0;
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bool foundSlash = false;
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for (size_t i = 0; i < argv0.GetLength(); i++) {
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if (argv0[i] == '/') {
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foundSlash = true;
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break;
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}
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}
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if (!foundSlash) {
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const char *pathEnv = getenv("PATH");
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if (pathEnv != NULL) {
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std::vector<String> paths;
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boost::algorithm::split(paths, pathEnv, boost::is_any_of(":"));
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bool foundPath = false;
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for (const String& path : paths) {
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String pathTest = path + "/" + argv0;
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if (access(pathTest.CStr(), X_OK) == 0) {
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executablePath = pathTest;
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foundPath = true;
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break;
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}
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}
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if (!foundPath) {
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executablePath.Clear();
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BOOST_THROW_EXCEPTION(std::runtime_error("Could not determine executable path."));
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}
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}
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}
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if (realpath(executablePath.CStr(), buffer) == NULL) {
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BOOST_THROW_EXCEPTION(posix_error()
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<< boost::errinfo_api_function("realpath")
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<< boost::errinfo_errno(errno)
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<< boost::errinfo_file_name(executablePath));
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}
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return buffer;
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#else /* _WIN32 */
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char FullExePath[MAXPATHLEN];
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if (!GetModuleFileName(NULL, FullExePath, sizeof(FullExePath)))
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BOOST_THROW_EXCEPTION(win32_error()
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<< boost::errinfo_api_function("GetModuleFileName")
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<< errinfo_win32_error(GetLastError()));
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return FullExePath;
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#endif /* _WIN32 */
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}
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/**
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* Display version and path information.
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*/
|
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void Application::DisplayInfoMessage(std::ostream& os, bool skipVersion)
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{
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os << "Application information:" << "\n";
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if (!skipVersion)
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os << " Application version: " << GetAppVersion() << "\n";
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os << " Installation root: " << GetPrefixDir() << "\n"
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<< " Sysconf directory: " << GetSysconfDir() << "\n"
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<< " Run directory: " << GetRunDir() << "\n"
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<< " Local state directory: " << GetLocalStateDir() << "\n"
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<< " Package data directory: " << GetPkgDataDir() << "\n"
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<< " State path: " << GetStatePath() << "\n"
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<< " Modified attributes path: " << GetModAttrPath() << "\n"
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<< " Objects path: " << GetObjectsPath() << "\n"
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<< " Vars path: " << GetVarsPath() << "\n"
|
|
<< " PID path: " << GetPidPath() << "\n";
|
|
|
|
os << "\n"
|
|
<< "System information:" << "\n"
|
|
<< " Platform: " << Utility::GetPlatformName() << "\n"
|
|
<< " Platform version: " << Utility::GetPlatformVersion() << "\n"
|
|
<< " Kernel: " << Utility::GetPlatformKernel() << "\n"
|
|
<< " Kernel version: " << Utility::GetPlatformKernelVersion() << "\n"
|
|
<< " Architecture: " << Utility::GetPlatformArchitecture() << "\n";
|
|
|
|
os << "\n"
|
|
<< "Build information:" << "\n"
|
|
<< " Compiler: " << ScriptGlobal::Get("BuildCompilerName") << " " << ScriptGlobal::Get("BuildCompilerVersion") << "\n"
|
|
<< " Build host: " << ScriptGlobal::Get("BuildHostName") << "\n";
|
|
}
|
|
|
|
/**
|
|
* Displays a message that tells users what to do when they encounter a bug.
|
|
*/
|
|
void Application::DisplayBugMessage(std::ostream& os)
|
|
{
|
|
os << "***" << "\n"
|
|
<< "* This would indicate a runtime problem or configuration error. If you believe this is a bug in Icinga 2" << "\n"
|
|
<< "* please submit a bug report at https://github.com/Icinga/icinga2 and include this stack trace as well as any other" << "\n"
|
|
<< "* information that might be useful in order to reproduce this problem." << "\n"
|
|
<< "***" << "\n";
|
|
}
|
|
|
|
String Application::GetCrashReportFilename(void)
|
|
{
|
|
return GetLocalStateDir() + "/log/icinga2/crash/report." + Convert::ToString(Utility::GetTime());
|
|
}
|
|
|
|
|
|
void Application::AttachDebugger(const String& filename, bool interactive)
|
|
{
|
|
#ifndef _WIN32
|
|
#ifdef __linux__
|
|
prctl(PR_SET_DUMPABLE, 1);
|
|
#endif /* __linux __ */
|
|
|
|
String my_pid = Convert::ToString(Utility::GetPid());
|
|
|
|
pid_t pid = fork();
|
|
|
|
if (pid < 0) {
|
|
BOOST_THROW_EXCEPTION(posix_error()
|
|
<< boost::errinfo_api_function("fork")
|
|
<< boost::errinfo_errno(errno));
|
|
}
|
|
|
|
if (pid == 0) {
|
|
if (!interactive) {
|
|
int fd = open(filename.CStr(), O_CREAT | O_RDWR | O_APPEND, 0600);
|
|
|
|
if (fd < 0) {
|
|
BOOST_THROW_EXCEPTION(posix_error()
|
|
<< boost::errinfo_api_function("open")
|
|
<< boost::errinfo_errno(errno)
|
|
<< boost::errinfo_file_name(filename));
|
|
}
|
|
|
|
if (fd != 1) {
|
|
/* redirect stdout to the file */
|
|
dup2(fd, 1);
|
|
close(fd);
|
|
}
|
|
|
|
/* redirect stderr to stdout */
|
|
if (fd != 2)
|
|
close(2);
|
|
|
|
dup2(1, 2);
|
|
}
|
|
|
|
char **argv;
|
|
char *my_pid_str = strdup(my_pid.CStr());
|
|
|
|
if (interactive) {
|
|
const char *uargv[] = {
|
|
"gdb",
|
|
"-p",
|
|
my_pid_str,
|
|
NULL
|
|
};
|
|
argv = const_cast<char **>(uargv);
|
|
} else {
|
|
const char *uargv[] = {
|
|
"gdb",
|
|
"--batch",
|
|
"-p",
|
|
my_pid_str,
|
|
"-ex",
|
|
"thread apply all bt full",
|
|
"-ex",
|
|
"detach",
|
|
"-ex",
|
|
"quit",
|
|
NULL
|
|
};
|
|
argv = const_cast<char **>(uargv);
|
|
}
|
|
|
|
(void)execvp(argv[0], argv);
|
|
perror("Failed to launch GDB");
|
|
free(my_pid_str);
|
|
_exit(0);
|
|
}
|
|
|
|
int status;
|
|
if (waitpid(pid, &status, 0) < 0) {
|
|
BOOST_THROW_EXCEPTION(posix_error()
|
|
<< boost::errinfo_api_function("waitpid")
|
|
<< boost::errinfo_errno(errno));
|
|
}
|
|
|
|
#ifdef __linux__
|
|
prctl(PR_SET_DUMPABLE, 0);
|
|
#endif /* __linux __ */
|
|
#else /* _WIN32 */
|
|
DebugBreak();
|
|
#endif /* _WIN32 */
|
|
}
|
|
|
|
#ifndef _WIN32
|
|
/**
|
|
* Signal handler for SIGINT and SIGTERM. Prepares the application for cleanly
|
|
* shutting down during the next execution of the event loop.
|
|
*
|
|
* @param - The signal number.
|
|
*/
|
|
void Application::SigIntTermHandler(int signum)
|
|
{
|
|
struct sigaction sa;
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.sa_handler = SIG_DFL;
|
|
sigaction(signum, &sa, NULL);
|
|
|
|
Application::Ptr instance = Application::GetInstance();
|
|
|
|
if (!instance)
|
|
return;
|
|
|
|
instance->RequestShutdown();
|
|
}
|
|
#endif /* _WIN32 */
|
|
|
|
/**
|
|
* Signal handler for SIGUSR1. This signal causes Icinga to re-open
|
|
* its log files and is mainly for use by logrotate.
|
|
*
|
|
* @param - The signal number.
|
|
*/
|
|
void Application::SigUsr1Handler(int)
|
|
{
|
|
RequestReopenLogs();
|
|
}
|
|
|
|
/**
|
|
* Signal handler for SIGABRT. Helps with debugging ASSERT()s.
|
|
*
|
|
* @param - The signal number.
|
|
*/
|
|
void Application::SigAbrtHandler(int)
|
|
{
|
|
#ifndef _WIN32
|
|
struct sigaction sa;
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.sa_handler = SIG_DFL;
|
|
sigaction(SIGABRT, &sa, NULL);
|
|
#endif /* _WIN32 */
|
|
|
|
std::cerr << "Caught SIGABRT." << std::endl
|
|
<< "Current time: " << Utility::FormatDateTime("%Y-%m-%d %H:%M:%S %z", Utility::GetTime()) << std::endl
|
|
<< std::endl;
|
|
|
|
String fname = GetCrashReportFilename();
|
|
String dirName = Utility::DirName(fname);
|
|
|
|
if (!Utility::PathExists(dirName)) {
|
|
#ifndef _WIN32
|
|
if (mkdir(dirName.CStr(), 0700) < 0 && errno != EEXIST) {
|
|
#else /*_ WIN32 */
|
|
if (mkdir(dirName.CStr()) < 0 && errno != EEXIST) {
|
|
#endif /* _WIN32 */
|
|
std::cerr << "Could not create directory '" << dirName << "': Error " << errno << ", " << strerror(errno) << "\n";
|
|
}
|
|
}
|
|
|
|
bool interactive_debugger = Convert::ToBool(ScriptGlobal::Get("AttachDebugger"));
|
|
|
|
if (!interactive_debugger) {
|
|
std::ofstream ofs;
|
|
ofs.open(fname.CStr());
|
|
|
|
Log(LogCritical, "Application")
|
|
<< "Icinga 2 has terminated unexpectedly. Additional information can be found in '" << fname << "'" << "\n";
|
|
|
|
DisplayInfoMessage(ofs);
|
|
|
|
StackTrace trace;
|
|
ofs << "Stacktrace:" << "\n";
|
|
trace.Print(ofs, 1);
|
|
|
|
DisplayBugMessage(ofs);
|
|
|
|
ofs << "\n";
|
|
ofs.close();
|
|
} else {
|
|
Log(LogCritical, "Application", "Icinga 2 has terminated unexpectedly. Attaching debugger...");
|
|
}
|
|
|
|
AttachDebugger(fname, interactive_debugger);
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
/**
|
|
* Console control handler. Prepares the application for cleanly
|
|
* shutting down during the next execution of the event loop.
|
|
*/
|
|
BOOL WINAPI Application::CtrlHandler(DWORD type)
|
|
{
|
|
Application::Ptr instance = Application::GetInstance();
|
|
|
|
if (!instance)
|
|
return TRUE;
|
|
|
|
instance->RequestShutdown();
|
|
|
|
SetConsoleCtrlHandler(NULL, FALSE);
|
|
return TRUE;
|
|
}
|
|
#endif /* _WIN32 */
|
|
|
|
/**
|
|
* Handler for unhandled exceptions.
|
|
*/
|
|
void Application::ExceptionHandler(void)
|
|
{
|
|
if (l_InExceptionHandler)
|
|
for (;;)
|
|
Utility::Sleep(5);
|
|
|
|
l_InExceptionHandler = true;
|
|
|
|
#ifndef _WIN32
|
|
struct sigaction sa;
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.sa_handler = SIG_DFL;
|
|
sigaction(SIGABRT, &sa, NULL);
|
|
#endif /* _WIN32 */
|
|
|
|
String fname = GetCrashReportFilename();
|
|
String dirName = Utility::DirName(fname);
|
|
|
|
if (!Utility::PathExists(dirName)) {
|
|
#ifndef _WIN32
|
|
if (mkdir(dirName.CStr(), 0700) < 0 && errno != EEXIST) {
|
|
#else /*_ WIN32 */
|
|
if (mkdir(dirName.CStr()) < 0 && errno != EEXIST) {
|
|
#endif /* _WIN32 */
|
|
std::cerr << "Could not create directory '" << dirName << "': Error " << errno << ", " << strerror(errno) << "\n";
|
|
}
|
|
}
|
|
|
|
bool interactive_debugger = Convert::ToBool(ScriptGlobal::Get("AttachDebugger"));
|
|
|
|
if (!interactive_debugger) {
|
|
std::ofstream ofs;
|
|
ofs.open(fname.CStr());
|
|
|
|
ofs << "Caught unhandled exception." << "\n"
|
|
<< "Current time: " << Utility::FormatDateTime("%Y-%m-%d %H:%M:%S %z", Utility::GetTime()) << "\n"
|
|
<< "\n";
|
|
|
|
DisplayInfoMessage(ofs);
|
|
|
|
try {
|
|
RethrowUncaughtException();
|
|
} catch (const std::exception& ex) {
|
|
Log(LogCritical, "Application")
|
|
<< DiagnosticInformation(ex, false) << "\n"
|
|
<< "\n"
|
|
<< "Additional information is available in '" << fname << "'" << "\n";
|
|
|
|
ofs << "\n"
|
|
<< DiagnosticInformation(ex)
|
|
<< "\n";
|
|
}
|
|
|
|
DisplayBugMessage(ofs);
|
|
|
|
ofs.close();
|
|
}
|
|
|
|
AttachDebugger(fname, interactive_debugger);
|
|
|
|
abort();
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
LONG CALLBACK Application::SEHUnhandledExceptionFilter(PEXCEPTION_POINTERS exi)
|
|
{
|
|
if (l_InExceptionHandler)
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
|
|
l_InExceptionHandler = true;
|
|
|
|
String fname = GetCrashReportFilename();
|
|
String dirName = Utility::DirName(fname);
|
|
|
|
if (!Utility::PathExists(dirName)) {
|
|
#ifndef _WIN32
|
|
if (mkdir(dirName.CStr(), 0700) < 0 && errno != EEXIST) {
|
|
#else /*_ WIN32 */
|
|
if (mkdir(dirName.CStr()) < 0 && errno != EEXIST) {
|
|
#endif /* _WIN32 */
|
|
std::cerr << "Could not create directory '" << dirName << "': Error " << errno << ", " << strerror(errno) << "\n";
|
|
}
|
|
}
|
|
|
|
std::ofstream ofs;
|
|
ofs.open(fname.CStr());
|
|
|
|
Log(LogCritical, "Application")
|
|
<< "Icinga 2 has terminated unexpectedly. Additional information can be found in '" << fname << "'";
|
|
|
|
DisplayInfoMessage(ofs);
|
|
|
|
ofs << "Caught unhandled SEH exception." << "\n"
|
|
<< "Current time: " << Utility::FormatDateTime("%Y-%m-%d %H:%M:%S %z", Utility::GetTime()) << "\n"
|
|
<< "\n";
|
|
|
|
StackTrace trace(exi);
|
|
ofs << "Stacktrace:" << "\n";
|
|
trace.Print(ofs, 1);
|
|
|
|
DisplayBugMessage(ofs);
|
|
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
}
|
|
#endif /* _WIN32 */
|
|
|
|
/**
|
|
* Installs the exception handlers.
|
|
*/
|
|
void Application::InstallExceptionHandlers(void)
|
|
{
|
|
std::set_terminate(&Application::ExceptionHandler);
|
|
|
|
#ifndef _WIN32
|
|
struct sigaction sa;
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.sa_handler = &Application::SigAbrtHandler;
|
|
sigaction(SIGABRT, &sa, NULL);
|
|
#else /* _WIN32 */
|
|
SetUnhandledExceptionFilter(&Application::SEHUnhandledExceptionFilter);
|
|
#endif /* _WIN32 */
|
|
}
|
|
|
|
/**
|
|
* Runs the application.
|
|
*
|
|
* @returns The application's exit code.
|
|
*/
|
|
int Application::Run(void)
|
|
{
|
|
#ifndef _WIN32
|
|
struct sigaction sa;
|
|
memset(&sa, 0, sizeof(sa));
|
|
sa.sa_handler = &Application::SigIntTermHandler;
|
|
sigaction(SIGINT, &sa, NULL);
|
|
sigaction(SIGTERM, &sa, NULL);
|
|
|
|
sa.sa_handler = &Application::SigUsr1Handler;
|
|
sigaction(SIGUSR1, &sa, NULL);
|
|
#else /* _WIN32 */
|
|
SetConsoleCtrlHandler(&Application::CtrlHandler, TRUE);
|
|
#endif /* _WIN32 */
|
|
|
|
try {
|
|
UpdatePidFile(GetPidPath());
|
|
} catch (const std::exception&) {
|
|
Log(LogCritical, "Application")
|
|
<< "Cannot update PID file '" << GetPidPath() << "'. Aborting.";
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
SetMainTime(Utility::GetTime());
|
|
|
|
return Main();
|
|
}
|
|
|
|
/**
|
|
* Grabs the PID file lock and updates the PID. Terminates the application
|
|
* if the PID file is already locked by another instance of the application.
|
|
*
|
|
* @param filename The name of the PID file.
|
|
* @param pid The PID to write; default is the current PID
|
|
*/
|
|
void Application::UpdatePidFile(const String& filename, pid_t pid)
|
|
{
|
|
ObjectLock olock(this);
|
|
|
|
if (m_PidFile != NULL)
|
|
fclose(m_PidFile);
|
|
|
|
/* There's just no sane way of getting a file descriptor for a
|
|
* C++ ofstream which is why we're using FILEs here. */
|
|
m_PidFile = fopen(filename.CStr(), "r+");
|
|
|
|
if (m_PidFile == NULL)
|
|
m_PidFile = fopen(filename.CStr(), "w");
|
|
|
|
if (m_PidFile == NULL) {
|
|
Log(LogCritical, "Application")
|
|
<< "Could not open PID file '" << filename << "'.";
|
|
BOOST_THROW_EXCEPTION(std::runtime_error("Could not open PID file '" + filename + "'"));
|
|
}
|
|
|
|
#ifndef _WIN32
|
|
int fd = fileno(m_PidFile);
|
|
|
|
Utility::SetCloExec(fd);
|
|
|
|
struct flock lock;
|
|
|
|
lock.l_start = 0;
|
|
lock.l_len = 0;
|
|
lock.l_type = F_WRLCK;
|
|
lock.l_whence = SEEK_SET;
|
|
|
|
if (fcntl(fd, F_SETLK, &lock) < 0) {
|
|
Log(LogCritical, "Application", "Could not lock PID file. Make sure that only one instance of the application is running.");
|
|
|
|
Application::Exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (ftruncate(fd, 0) < 0) {
|
|
Log(LogCritical, "Application")
|
|
<< "ftruncate() failed with error code " << errno << ", \"" << Utility::FormatErrorNumber(errno) << "\"";
|
|
|
|
BOOST_THROW_EXCEPTION(posix_error()
|
|
<< boost::errinfo_api_function("ftruncate")
|
|
<< boost::errinfo_errno(errno));
|
|
}
|
|
#endif /* _WIN32 */
|
|
|
|
fprintf(m_PidFile, "%lu\n", (unsigned long)pid);
|
|
fflush(m_PidFile);
|
|
}
|
|
|
|
/**
|
|
* Closes the PID file. Does nothing if the PID file is not currently open.
|
|
*/
|
|
void Application::ClosePidFile(bool unlink)
|
|
{
|
|
ObjectLock olock(this);
|
|
|
|
if (m_PidFile != NULL)
|
|
{
|
|
if (unlink) {
|
|
String pidpath = GetPidPath();
|
|
::unlink(pidpath.CStr());
|
|
}
|
|
|
|
fclose(m_PidFile);
|
|
}
|
|
|
|
m_PidFile = NULL;
|
|
}
|
|
|
|
/**
|
|
* Checks if another process currently owns the pidfile and read it
|
|
*
|
|
* @param filename The name of the PID file.
|
|
* @returns 0: no process owning the pidfile, pid of the process otherwise
|
|
*/
|
|
pid_t Application::ReadPidFile(const String& filename)
|
|
{
|
|
FILE *pidfile = fopen(filename.CStr(), "r");
|
|
|
|
if (pidfile == NULL)
|
|
return 0;
|
|
|
|
#ifndef _WIN32
|
|
int fd = fileno(pidfile);
|
|
|
|
struct flock lock;
|
|
|
|
lock.l_start = 0;
|
|
lock.l_len = 0;
|
|
lock.l_type = F_WRLCK;
|
|
lock.l_whence = SEEK_SET;
|
|
|
|
if (fcntl(fd, F_GETLK, &lock) < 0) {
|
|
int error = errno;
|
|
fclose(pidfile);
|
|
BOOST_THROW_EXCEPTION(posix_error()
|
|
<< boost::errinfo_api_function("fcntl")
|
|
<< boost::errinfo_errno(error));
|
|
}
|
|
|
|
if (lock.l_type == F_UNLCK) {
|
|
// nobody has locked the file: no icinga running
|
|
fclose(pidfile);
|
|
return -1;
|
|
}
|
|
#endif /* _WIN32 */
|
|
|
|
pid_t runningpid;
|
|
int res = fscanf(pidfile, "%d", &runningpid);
|
|
fclose(pidfile);
|
|
|
|
// bogus result?
|
|
if (res != 1)
|
|
return 0;
|
|
|
|
#ifdef _WIN32
|
|
HANDLE hProcess = OpenProcess(0, FALSE, runningpid);
|
|
|
|
if (!hProcess)
|
|
return 0;
|
|
|
|
CloseHandle(hProcess);
|
|
#endif /* _WIN32 */
|
|
|
|
return runningpid;
|
|
}
|
|
|
|
|
|
/**
|
|
* Retrieves the path of the installation prefix.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetPrefixDir(void)
|
|
{
|
|
return ScriptGlobal::Get("PrefixDir");
|
|
}
|
|
|
|
/**
|
|
* Sets the path for the installation prefix.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclarePrefixDir(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("PrefixDir"))
|
|
ScriptGlobal::Set("PrefixDir", path);
|
|
}
|
|
|
|
/**
|
|
* Retrives the path of the sysconf dir.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetSysconfDir(void)
|
|
{
|
|
return ScriptGlobal::Get("SysconfDir");
|
|
}
|
|
|
|
/**
|
|
* Sets the path of the sysconf dir.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclareSysconfDir(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("SysconfDir"))
|
|
ScriptGlobal::Set("SysconfDir", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the run dir.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetRunDir(void)
|
|
{
|
|
return ScriptGlobal::Get("RunDir");
|
|
}
|
|
|
|
/**
|
|
* Sets the path of the run dir.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclareRunDir(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("RunDir"))
|
|
ScriptGlobal::Set("RunDir", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the local state dir.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetLocalStateDir(void)
|
|
{
|
|
return ScriptGlobal::Get("LocalStateDir");
|
|
}
|
|
|
|
/**
|
|
* Sets the path for the local state dir.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclareLocalStateDir(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("LocalStateDir"))
|
|
ScriptGlobal::Set("LocalStateDir", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the local state dir.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetZonesDir(void)
|
|
{
|
|
return ScriptGlobal::Get("ZonesDir", &Empty);
|
|
}
|
|
|
|
/**
|
|
* Sets the path of the zones dir.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclareZonesDir(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("ZonesDir"))
|
|
ScriptGlobal::Set("ZonesDir", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the package data dir.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetPkgDataDir(void)
|
|
{
|
|
String defaultValue = "";
|
|
return ScriptGlobal::Get("PkgDataDir", &Empty);
|
|
}
|
|
|
|
/**
|
|
* Sets the path for the package data dir.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclarePkgDataDir(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("PkgDataDir"))
|
|
ScriptGlobal::Set("PkgDataDir", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the include conf dir.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetIncludeConfDir(void)
|
|
{
|
|
return ScriptGlobal::Get("IncludeConfDir", &Empty);
|
|
}
|
|
|
|
/**
|
|
* Sets the path for the package data dir.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclareIncludeConfDir(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("IncludeConfDir"))
|
|
ScriptGlobal::Set("IncludeConfDir", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the state file.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetStatePath(void)
|
|
{
|
|
return ScriptGlobal::Get("StatePath", &Empty);
|
|
}
|
|
|
|
/**
|
|
* Sets the path for the state file.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclareStatePath(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("StatePath"))
|
|
ScriptGlobal::Set("StatePath", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the modified attributes file.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetModAttrPath(void)
|
|
{
|
|
return ScriptGlobal::Get("ModAttrPath", &Empty);
|
|
}
|
|
|
|
/**
|
|
* Sets the path for the modified attributes file.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclareModAttrPath(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("ModAttrPath"))
|
|
ScriptGlobal::Set("ModAttrPath", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the objects file.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetObjectsPath(void)
|
|
{
|
|
return ScriptGlobal::Get("ObjectsPath", &Empty);
|
|
}
|
|
|
|
/**
|
|
* Sets the path for the objects file.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclareObjectsPath(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("ObjectsPath"))
|
|
ScriptGlobal::Set("ObjectsPath", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the vars file.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetVarsPath(void)
|
|
{
|
|
return ScriptGlobal::Get("VarsPath", &Empty);
|
|
}
|
|
|
|
/**
|
|
* Sets the path for the vars file.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclareVarsPath(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("VarsPath"))
|
|
ScriptGlobal::Set("VarsPath", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the path for the PID file.
|
|
*
|
|
* @returns The path.
|
|
*/
|
|
String Application::GetPidPath(void)
|
|
{
|
|
return ScriptGlobal::Get("PidPath", &Empty);
|
|
}
|
|
|
|
/**
|
|
* Sets the path for the PID file.
|
|
*
|
|
* @param path The new path.
|
|
*/
|
|
void Application::DeclarePidPath(const String& path)
|
|
{
|
|
if (!ScriptGlobal::Exists("PidPath"))
|
|
ScriptGlobal::Set("PidPath", path);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the name of the user.
|
|
*
|
|
* @returns The name.
|
|
*/
|
|
String Application::GetRunAsUser(void)
|
|
{
|
|
return ScriptGlobal::Get("RunAsUser");
|
|
}
|
|
|
|
/**
|
|
* Sets the name of the user.
|
|
*
|
|
* @param path The new user name.
|
|
*/
|
|
void Application::DeclareRunAsUser(const String& user)
|
|
{
|
|
if (!ScriptGlobal::Exists("RunAsUser"))
|
|
ScriptGlobal::Set("RunAsUser", user);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the name of the group.
|
|
*
|
|
* @returns The name.
|
|
*/
|
|
String Application::GetRunAsGroup(void)
|
|
{
|
|
return ScriptGlobal::Get("RunAsGroup");
|
|
}
|
|
|
|
/**
|
|
* Sets the name of the group.
|
|
*
|
|
* @param path The new group name.
|
|
*/
|
|
void Application::DeclareRunAsGroup(const String& group)
|
|
{
|
|
if (!ScriptGlobal::Exists("RunAsGroup"))
|
|
ScriptGlobal::Set("RunAsGroup", group);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the file rlimit.
|
|
*
|
|
* @returns The limit.
|
|
*/
|
|
int Application::GetRLimitFiles(void)
|
|
{
|
|
return ScriptGlobal::Get("RLimitFiles");
|
|
}
|
|
|
|
int Application::GetDefaultRLimitFiles(void)
|
|
{
|
|
return 16 * 1024;
|
|
}
|
|
|
|
/**
|
|
* Sets the file rlimit.
|
|
*
|
|
* @param path The new file rlimit.
|
|
*/
|
|
void Application::DeclareRLimitFiles(int limit)
|
|
{
|
|
if (!ScriptGlobal::Exists("RLimitFiles"))
|
|
ScriptGlobal::Set("RLimitFiles", limit);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the process rlimit.
|
|
*
|
|
* @returns The limit.
|
|
*/
|
|
int Application::GetRLimitProcesses(void)
|
|
{
|
|
return ScriptGlobal::Get("RLimitProcesses");
|
|
}
|
|
|
|
int Application::GetDefaultRLimitProcesses(void)
|
|
{
|
|
return 16 * 1024;
|
|
}
|
|
|
|
/**
|
|
* Sets the process rlimit.
|
|
*
|
|
* @param path The new process rlimit.
|
|
*/
|
|
void Application::DeclareRLimitProcesses(int limit)
|
|
{
|
|
if (!ScriptGlobal::Exists("RLimitProcesses"))
|
|
ScriptGlobal::Set("RLimitProcesses", limit);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the stack rlimit.
|
|
*
|
|
* @returns The limit.
|
|
*/
|
|
int Application::GetRLimitStack(void)
|
|
{
|
|
return ScriptGlobal::Get("RLimitStack");
|
|
}
|
|
|
|
int Application::GetDefaultRLimitStack(void)
|
|
{
|
|
return 256 * 1024;
|
|
}
|
|
|
|
/**
|
|
* Sets the stack rlimit.
|
|
*
|
|
* @param path The new stack rlimit.
|
|
*/
|
|
void Application::DeclareRLimitStack(int limit)
|
|
{
|
|
if (!ScriptGlobal::Exists("RLimitStack"))
|
|
ScriptGlobal::Set("RLimitStack", limit);
|
|
}
|
|
|
|
/**
|
|
* Sets the concurrency level.
|
|
*
|
|
* @param path The new concurrency level.
|
|
*/
|
|
void Application::DeclareConcurrency(int ncpus)
|
|
{
|
|
if (!ScriptGlobal::Exists("Concurrency"))
|
|
ScriptGlobal::Set("Concurrency", ncpus);
|
|
}
|
|
|
|
/**
|
|
* Retrieves the concurrency level.
|
|
*
|
|
* @returns The concurrency level.
|
|
*/
|
|
int Application::GetConcurrency(void)
|
|
{
|
|
Value defaultConcurrency = boost::thread::hardware_concurrency();
|
|
return ScriptGlobal::Get("Concurrency", &defaultConcurrency);
|
|
}
|
|
|
|
/**
|
|
* Returns the global thread pool.
|
|
*
|
|
* @returns The global thread pool.
|
|
*/
|
|
ThreadPool& Application::GetTP(void)
|
|
{
|
|
static ThreadPool tp;
|
|
return tp;
|
|
}
|
|
|
|
double Application::GetStartTime(void)
|
|
{
|
|
return m_StartTime;
|
|
}
|
|
|
|
void Application::SetStartTime(double ts)
|
|
{
|
|
m_StartTime = ts;
|
|
}
|
|
|
|
double Application::GetMainTime(void)
|
|
{
|
|
return m_MainTime;
|
|
}
|
|
|
|
void Application::SetMainTime(double ts)
|
|
{
|
|
m_MainTime = ts;
|
|
}
|
|
|
|
bool Application::GetScriptDebuggerEnabled(void)
|
|
{
|
|
return m_ScriptDebuggerEnabled;
|
|
}
|
|
|
|
void Application::SetScriptDebuggerEnabled(bool enabled)
|
|
{
|
|
m_ScriptDebuggerEnabled = enabled;
|
|
}
|
|
|
|
double Application::GetLastReloadFailed(void)
|
|
{
|
|
return m_LastReloadFailed;
|
|
}
|
|
|
|
void Application::SetLastReloadFailed(double ts)
|
|
{
|
|
m_LastReloadFailed = ts;
|
|
}
|
|
|
|
void Application::ValidateName(const String& value, const ValidationUtils& utils)
|
|
{
|
|
ObjectImpl<Application>::ValidateName(value, utils);
|
|
|
|
if (value != "app")
|
|
BOOST_THROW_EXCEPTION(ValidationError(this, boost::assign::list_of("name"), "Application object must be named 'app'."));
|
|
}
|