granicus.if.org Git - icinga2/blob - lib/base/exception.h

   1 /******************************************************************************
   2  * Icinga 2                                                                   *
   3  * Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/)        *
   4  *                                                                            *
   5  * This program is free software; you can redistribute it and/or              *
   6  * modify it under the terms of the GNU General Public License                *
   7  * as published by the Free Software Foundation; either version 2             *
   8  * of the License, or (at your option) any later version.                     *
   9  *                                                                            *
  10  * This program is distributed in the hope that it will be useful,            *
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of             *
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              *
  13  * GNU General Public License for more details.                               *
  14  *                                                                            *
  15  * You should have received a copy of the GNU General Public License          *
  16  * along with this program; if not, write to the Free Software Foundation     *
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
  18  ******************************************************************************/
  19
  20 #ifndef EXCEPTION_H
  21 #define EXCEPTION_H
  22
  23 #include "base/i2-base.h"
  24 #include "base/stacktrace.h"
  25 #include <sstream>
  26 #include <boost/thread/tss.hpp>
  27 #include <boost/exception/errinfo_api_function.hpp>
  28 #include <boost/exception/errinfo_errno.hpp>
  29 #include <boost/exception/errinfo_file_name.hpp>
  30
  31 #ifdef _WIN32
  32 #       include <boost/algorithm/string/trim.hpp>
  33 #endif /* _WIN32 */
  34
  35 namespace icinga
  36 {
  37
  38 /**
  39  * Base class for all exceptions.
  40  *
  41  * @ingroup base
  42  */
  43 class I2_BASE_API Exception
  44 {
  45 public:
  46         static StackTrace *GetLastStackTrace(void);
  47         static void SetLastStackTrace(const StackTrace& trace);
  48
  49 private:
  50         static boost::thread_specific_ptr<StackTrace> m_LastStackTrace;
  51 };
  52
  53 typedef boost::error_info<StackTrace, StackTrace> StackTraceErrorInfo;
  54
  55 class I2_BASE_API posix_error : virtual public std::exception, virtual public boost::exception { };
  56
  57 #ifdef _WIN32
  58 class I2_BASE_API win32_error : virtual public std::exception, virtual public boost::exception { };
  59
  60 struct errinfo_win32_error_;
  61 typedef boost::error_info<struct errinfo_win32_error_, int> errinfo_win32_error;
  62
  63 inline std::string to_string(const errinfo_win32_error& e)
  64 {
  65         std::ostringstream tmp;
  66         int code = e.value();
  67
  68         char *message;
  69         String result = "Unknown error.";
  70
  71         DWORD rc = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
  72                 FORMAT_MESSAGE_FROM_SYSTEM, NULL, code, 0, (char *)&message,
  73                 0, NULL);
  74
  75         if (rc != 0) {
  76                 result = String(message);
  77                 LocalFree(message);
  78
  79                 /* remove trailing new-line characters */
  80                 boost::algorithm::trim_right(result);
  81         }
  82
  83         tmp << code << ", \"" << result << "\"";
  84         return tmp.str();
  85 }
  86 #endif /* _WIN32 */
  87
  88 }
  89
  90 #endif /* EXCEPTION_H */