icinga2/icinga-app/icinga.cpp

172 lines
5.0 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include <i2-icinga.h>
#ifdef HAVE_BACKTRACE_SYMBOLS
# include <execinfo.h>
#endif /* HAVE_BACKTRACE_SYMBOLS */
#ifndef _WIN32
# include "icinga-version.h"
# define ICINGA_VERSION VERSION ", " GIT_MESSAGE
# include <ltdl.h>
#endif /* _WIN32 */
using namespace icinga;
/**
* Handler for unhandled exceptions.
*
*/
static void exception_handler(void)
{
static bool rethrow = true;
try {
rethrow = false;
throw;
} catch (const std::exception& ex) {
std::cerr << std::endl;
std::cerr << "Unhandled exception of type "
<< Utility::GetTypeName(typeid(ex))
<< std::endl;
std::cerr << "Diagnostic Information: "
<< ex.what()
<< std::endl;
}
#ifdef HAVE_BACKTRACE_SYMBOLS
void *frames[50];
int framecount = backtrace(frames, sizeof(frames) / sizeof(frames[0]));
char **messages = backtrace_symbols(frames, framecount);
std::cerr << std::endl << "Stacktrace:" << std::endl;
for (int i = 0; i < framecount && messages != NULL; ++i) {
String message = messages[i];
char *sym_begin = strchr(messages[i], '(');
if (sym_begin != NULL) {
char *sym_end = strchr(sym_begin, '+');
if (sym_end != NULL) {
String sym = String(sym_begin + 1, sym_end);
String sym_demangled = Utility::DemangleSymbolName(sym);
if (sym_demangled.IsEmpty())
sym_demangled = "<unknown function>";
message = String(messages[i], sym_begin) + ": " + sym_demangled + " (" + String(sym_end);
}
}
std::cerr << "\t(" << i << ") " << message << std::endl;
}
free(messages);
std::cerr << std::endl;
#endif /* HAVE_BACKTRACE_SYMBOLS */
abort();
}
/**
* Entry point for the Icinga application.
*
* @params argc Number of command line arguments.
* @params argv Command line arguments.
* @returns The application's exit status.
*/
int main(int argc, char **argv)
{
std::set_terminate(exception_handler);
#ifndef _WIN32
LTDL_SET_PRELOADED_SYMBOLS();
#endif /* _WIN32 */
#ifndef _WIN32
lt_dlinit();
#endif /* _WIN32 */
/* This must be done before calling any other functions
* in the base library. */
Application::SetMainThread();
#ifdef ICINGA_PREFIX
Application::SetPrefixDir(ICINGA_PREFIX);
#endif /* ICINGA_PREFIX */
#ifdef ICINGA_LOCALSTATEDIR
Application::SetLocalStateDir(ICINGA_LOCALSTATEDIR);
#endif /* ICINGA_LOCALSTATEDIR */
#ifdef ICINGA_PKGLIBDIR
Application::SetPkgLibDir(ICINGA_PKGLIBDIR);
#endif /* ICINGA_PKGLIBDIR */
Logger::Write(LogInformation, "icinga", "Icinga application loader"
#ifndef _WIN32
" (version: " ICINGA_VERSION ")"
#endif /* _WIN32 */
);
if (argc < 3 || strcmp(argv[1], "-c") != 0) {
stringstream msgbuf;
msgbuf << "Syntax: " << argv[0] << " -c <config-file> ...";
Logger::Write(LogInformation, "base", msgbuf.str());
return EXIT_FAILURE;
}
Component::AddSearchDir(Application::GetPkgLibDir());
try {
DynamicObject::BeginTx();
/* load config file */
String configFile = argv[2];
vector<ConfigItem::Ptr> configItems = ConfigCompiler::CompileFile(configFile);
Logger::Write(LogInformation, "icinga", "Executing config items...");
BOOST_FOREACH(const ConfigItem::Ptr& item, configItems) {
item->Commit();
}
DynamicObject::FinishTx();
} catch (const exception& ex) {
Logger::Write(LogCritical, "icinga", "Configuration error: " + String(ex.what()));
return EXIT_FAILURE;
}
Application::Ptr app = Application::GetInstance();
if (!app)
throw_exception(runtime_error("Configuration must create an Application object."));
/* The application class doesn't need to know about the "-c configFile"
* command-line arguments. */
return app->Run(argc - 2, &(argv[2]));
}