external/bsd/atf/dist/tools/exceptions.cpp

   1 //
   2 // Automated Testing Framework (atf)
   3 //
   4 // Copyright (c) 2007 The NetBSD Foundation, Inc.
   5 // All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or without
   8 // modification, are permitted provided that the following conditions
   9 // are met:
  10 // 1. Redistributions of source code must retain the above copyright
  11 //    notice, this list of conditions and the following disclaimer.
  12 // 2. Redistributions in binary form must reproduce the above copyright
  13 //    notice, this list of conditions and the following disclaimer in the
  14 //    documentation and/or other materials provided with the distribution.
  15 //
  16 // THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
  17 // CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18 // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20 // IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
  21 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25 // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27 // IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28 //
  29
  30 #include <cstring>
  31
  32 #include "exceptions.hpp"
  33
  34 // ------------------------------------------------------------------------
  35 // The "system_error" type.
  36 // ------------------------------------------------------------------------
  37
  38 tools::system_error::system_error(const std::string& who,
  39                                   const std::string& message,
  40                                   int sys_err) :
  41     std::runtime_error(who + ": " + message),
  42     m_sys_err(sys_err)
  43 {
  44 }
  45
  46 tools::system_error::~system_error(void)
  47     throw()
  48 {
  49 }
  50
  51 int
  52 tools::system_error::code(void)
  53     const
  54     throw()
  55 {
  56     return m_sys_err;
  57 }
  58
  59 const char*
  60 tools::system_error::what(void)
  61     const
  62     throw()
  63 {
  64     try {
  65         if (m_message.length() == 0) {
  66             m_message = std::string(std::runtime_error::what()) + ": ";
  67             m_message += ::strerror(m_sys_err);
  68         }
  69
  70         return m_message.c_str();
  71     } catch (...) {
  72         return "Unable to format system_error message";
  73     }
  74 }