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include/xapian/error.h

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00001 00004 /* ----START-LICENCE---- 00005 * Copyright 1999,2000,2001 BrightStation PLC 00006 * Copyright 2002,2003,2004 Olly Betts 00007 * 00008 * This program is free software; you can redistribute it and/or 00009 * modify it under the terms of the GNU General Public License as 00010 * published by the Free Software Foundation; either version 2 of the 00011 * License, or (at your option) any later version. 00012 * 00013 * This program is distributed in the hope that it will be useful, 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00016 * GNU General Public License for more details. 00017 * 00018 * You should have received a copy of the GNU General Public License 00019 * along with this program; if not, write to the Free Software 00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00021 * USA 00022 * -----END-LICENCE----- 00023 */ 00024 00025 #ifndef XAPIAN_INCLUDED_ERROR_H 00026 #define XAPIAN_INCLUDED_ERROR_H 00027 00028 #include <string> 00029 00030 namespace Xapian { 00031 00032 class ErrorHandler; 00033 00038 class Error { 00039 friend class ErrorHandler; 00040 private: 00042 std::string msg; 00043 00045 std::string context; 00046 00048 std::string type; 00049 00051 int errno_value; 00052 00054 bool has_been_handled; 00055 00057 void operator=(const Error &copyme); 00058 00059 protected: 00063 Error(const std::string &msg_, const std::string &context_, 00064 const std::string &type_, int errno_value_); 00065 00066 Error(const Error &o) : msg(o.msg), context(o.context), type(o.type), 00067 errno_value(o.errno_value), has_been_handled(o.has_been_handled) {} 00068 00069 public: 00073 std::string get_msg() const 00074 { 00075 return msg; 00076 } 00077 00079 std::string get_type() const 00080 { 00081 return type; 00082 } 00083 00085 std::string get_context() const 00086 { 00087 return context; 00088 } 00089 00091 int get_errno() const 00092 { 00093 return errno_value; 00094 } 00095 00097 virtual ~Error() { } 00098 }; 00099 00101 #define XAPIAN_DEFINE_ERROR_BASECLASS(a, b) \ 00102 class a : public b { \ 00103 protected: \ 00104 \ 00105 a(const std::string &msg_, \ 00106 const std::string &context_, \ 00107 const std::string &type_, \ 00108 int errno_value_) : b(msg_, context_, type_, errno_value_) {} \ 00109 } 00110 00112 #define XAPIAN_DEFINE_ERROR_CLASS(a, b) \ 00113 class a : public b { \ 00114 public: \ 00115 \ 00116 a(const std::string &msg_, \ 00117 const std::string &context_ = "", \ 00118 int errno_value_ = 0) : b(msg_, context_, #a, errno_value_) {} \ 00119 \ 00120 a(const std::string &msg_, \ 00121 int errno_value_) : b(msg_, "", #a, errno_value_) {} \ 00122 protected: \ 00123 \ 00124 a(const std::string &msg_, \ 00125 const std::string &context_, \ 00126 const std::string &type_, \ 00127 int errno_value_) : b(msg_, context_, type_, errno_value_) {} \ 00128 } 00129 00130 #include <xapian/errortypes.h> 00131 00132 #undef XAPIAN_DEFINE_ERROR_BASECLASS 00133 #undef XAPIAN_DEFINE_ERROR_CLASS 00134 00135 } 00136 00137 #endif /* XAPIAN_INCLUDED_ERROR_H */

Documentation for Xapian (version 0.9.2).
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