external/bsd/kyua-cli/dist/utils/fs/exceptions.hpp

   1 // Copyright 2010 Google Inc.
   2 // All rights reserved.
   3 //
   4 // Redistribution and use in source and binary forms, with or without
   5 // modification, are permitted provided that the following conditions are
   6 // met:
   7 //
   8 // * Redistributions of source code must retain the above copyright
   9 //   notice, this list of conditions and the following disclaimer.
  10 // * Redistributions in binary form must reproduce the above copyright
  11 //   notice, this list of conditions and the following disclaimer in the
  12 //   documentation and/or other materials provided with the distribution.
  13 // * Neither the name of Google Inc. nor the names of its contributors
  14 //   may be used to endorse or promote products derived from this software
  15 //   without specific prior written permission.
  16 //
  17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28
  29 /// \file utils/fs/exceptions.hpp
  30 /// Exception types raised by the fs module.
  31
  32 #if !defined(UTILS_FS_EXCEPTIONS_HPP)
  33 #define UTILS_FS_EXCEPTIONS_HPP
  34
  35 #include <stdexcept>
  36 #include <string>
  37
  38 namespace utils {
  39 namespace fs {
  40
  41
  42 /// Base exception for fs errors.
  43 class error : public std::runtime_error {
  44 public:
  45     explicit error(const std::string&);
  46     virtual ~error(void) throw();
  47 };
  48
  49
  50 /// Error denoting an invalid path while constructing a fs::path object.
  51 class invalid_path_error : public error {
  52     /// Raw value of the invalid path.
  53     std::string _textual_path;
  54
  55 public:
  56     explicit invalid_path_error(const std::string&, const std::string&);
  57     virtual ~invalid_path_error(void) throw();
  58
  59     const std::string& invalid_path(void) const;
  60 };
  61
  62
  63 /// Paths cannot be joined.
  64 class join_error : public error {
  65     /// Raw value of the first path in the join operation.
  66     std::string _textual_path1;
  67
  68     /// Raw value of the second path in the join operation.
  69     std::string _textual_path2;
  70
  71 public:
  72     explicit join_error(const std::string&, const std::string&,
  73                         const std::string&);
  74     virtual ~join_error(void) throw();
  75
  76     const std::string& textual_path1(void) const;
  77     const std::string& textual_path2(void) const;
  78 };
  79
  80
  81 /// Exceptions for errno-based errors.
  82 ///
  83 /// TODO(jmmv): This code is duplicated in, at least, utils::process.  Figure
  84 /// out a way to reuse this exception while maintaining the correct inheritance
  85 /// (i.e. be able to keep it as a child of fs::error).
  86 class system_error : public error {
  87     /// Error number describing this libc error condition.
  88     int _original_errno;
  89
  90 public:
  91     explicit system_error(const std::string&, const int);
  92     ~system_error(void) throw();
  93
  94     int original_errno(void) const throw();
  95 };
  96
  97
  98 }  // namespace fs
  99 }  // namespace utils
 100
 101
 102 #endif  // !defined(UTILS_FS_EXCEPTIONS_HPP)