icinga2/lib/base/exception.h

136 lines
4.4 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 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. *
******************************************************************************/
#ifndef EXCEPTION_H
#define EXCEPTION_H
#include "base/i2-base.h"
#include "base/qstring.h"
#include "base/stacktrace.h"
#include "base/context.h"
#include <sstream>
#include <boost/exception/errinfo_api_function.hpp>
#include <boost/exception/errinfo_errno.hpp>
#include <boost/exception/errinfo_file_name.hpp>
#include <boost/exception/diagnostic_information.hpp>
#include <boost/exception_ptr.hpp>
#ifdef _WIN32
# include <boost/algorithm/string/trim.hpp>
#endif /* _WIN32 */
namespace icinga
{
class I2_BASE_API user_error : virtual public std::exception, virtual public boost::exception { };
I2_BASE_API StackTrace *GetLastExceptionStack(void);
I2_BASE_API void SetLastExceptionStack(const StackTrace& trace);
I2_BASE_API ContextTrace *GetLastExceptionContext(void);
I2_BASE_API void SetLastExceptionContext(const ContextTrace& context);
I2_BASE_API void RethrowUncaughtException(void);
typedef boost::error_info<StackTrace, StackTrace> StackTraceErrorInfo;
typedef boost::error_info<ContextTrace, ContextTrace> ContextTraceErrorInfo;
template<typename T>
String DiagnosticInformation(const T& ex, StackTrace *stack = NULL, ContextTrace *context = NULL)
{
std::ostringstream result;
result << boost::diagnostic_information(ex);
if (dynamic_cast<const user_error *>(&ex) == NULL) {
if (boost::get_error_info<StackTraceErrorInfo>(ex) == NULL) {
result << std::endl;
if (!stack)
stack = GetLastExceptionStack();
if (stack)
result << *stack;
}
if (boost::get_error_info<ContextTraceErrorInfo>(ex) == NULL) {
result << std::endl;
if (!context)
context = GetLastExceptionContext();
if (context)
result << *context;
}
}
return result.str();
}
I2_BASE_API String DiagnosticInformation(boost::exception_ptr eptr);
class I2_BASE_API posix_error : virtual public std::exception, virtual public boost::exception { };
#ifdef _WIN32
class I2_BASE_API win32_error : virtual public std::exception, virtual public boost::exception { };
struct errinfo_win32_error_;
typedef boost::error_info<struct errinfo_win32_error_, int> errinfo_win32_error;
inline std::string to_string(const errinfo_win32_error& e)
{
std::ostringstream tmp;
int code = e.value();
char *message;
String result = "Unknown error.";
DWORD rc = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM, NULL, code, 0, (char *)&message,
0, NULL);
if (rc != 0) {
result = String(message);
LocalFree(message);
/* remove trailing new-line characters */
boost::algorithm::trim_right(result);
}
tmp << code << ", \"" << result << "\"";
return tmp.str();
}
#endif /* _WIN32 */
struct errinfo_getaddrinfo_error_;
typedef boost::error_info<struct errinfo_getaddrinfo_error_, int> errinfo_getaddrinfo_error;
inline std::string to_string(const errinfo_getaddrinfo_error& e)
{
return gai_strerror(e.value());
}
struct errinfo_message_;
typedef boost::error_info<struct errinfo_message_, std::string> errinfo_message;
}
#endif /* EXCEPTION_H */