Pogolyn: pg_id.h Source File

00001 /*
00002     Copyright (c) 2007-2009 Takashi Kitao
00003     All rights reserved.
00004 
00005     Redistribution and use in source and binary forms, with or without
00006     modification, are permitted provided that the following conditions
00007     are met:
00008 
00009     1. Redistributions of source code must retain the above copyright
00010     `  notice, this list of conditions and the following disclaimer.
00011 
00012     2. Redistributions in binary form must reproduce the above copyright
00013     `  notice, this list of conditions and the following disclaimer in the
00014     `  documentation and/or other materials provided with the distribution.
00015 
00016     3. The name of the author may not be used to endorse or promote products
00017     `  derived from this software without specific prior written permission.
00018 
00019     THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00020     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00021     OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00022     IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
00023     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00024     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00025     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00026     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00027     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00028     THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00029 */
00030 
00031 
00036 class PG_API pgID
00037 {
00038 public:
00039     pgDefineException(ExceptionInvalidArgument);
00040     pgDefineException(ExceptionOutOfID);
00041 
00042     static const pgID ZERO; 
00043 
00047     pgID();
00048 
00054     bool operator==(pgID id) const;
00055 
00061     bool operator!=(pgID id) const;
00062 
00069     u32 operator%(u32 n) const;
00070 
00075     u32 getValue() const;
00076 
00081     static pgID genID();
00082 
00089     static pgID genID(const char* str);
00090 
00096     static pgID genIDForSystem(u32 value);
00097 
00102     static void setCurIDForSystem(u32 value);
00103 
00104 private:
00105     static const u32 BIT_NUM = 32;
00106     static const u32 MAX_ID = (static_cast<u64>(1) << (BIT_NUM - 1)) - 1;
00107 
00108     u32 m_id;
00109 
00110     static u32 m_cur_id;
00111 };
00112 
00113 
00120 #define pgID_(str) pgID::genIDForSystem(PG_ID_00(str, sizeof("" str)))
00121 
00122 
00123 #define PG_ID_00(str, len) ((len <= 1) ? 0 : (PG_ID_01(str, len - 1) | 0x80000000))
00124 #define PG_ID_01(str, len) ((len <= 1) ? str[0] : PG_ID_02(str, len - 1) * 37 + str[len - 1])
00125 #define PG_ID_02(str, len) ((len <= 1) ? str[0] : PG_ID_03(str, len - 1) * 37 + str[len - 1])
00126 #define PG_ID_03(str, len) ((len <= 1) ? str[0] : PG_ID_04(str, len - 1) * 37 + str[len - 1])
00127 #define PG_ID_04(str, len) ((len <= 1) ? str[0] : PG_ID_05(str, len - 1) * 37 + str[len - 1])
00128 #define PG_ID_05(str, len) ((len <= 1) ? str[0] : PG_ID_06(str, len - 1) * 37 + str[len - 1])
00129 #define PG_ID_06(str, len) ((len <= 1) ? str[0] : PG_ID_07(str, len - 1) * 37 + str[len - 1])
00130 #define PG_ID_07(str, len) ((len <= 1) ? str[0] : PG_ID_08(str, len - 1) * 37 + str[len - 1])
00131 #define PG_ID_08(str, len) ((len <= 1) ? str[0] : PG_ID_09(str, len - 1) * 37 + str[len - 1])
00132 #define PG_ID_09(str, len) ((len <= 1) ? str[0] : PG_ID_10(str, len - 1) * 37 + str[len - 1])
00133 #define PG_ID_10(str, len) ((len <= 1) ? str[0] : PG_ID_11(str, len - 1) * 37 + str[len - 1])
00134 #define PG_ID_11(str, len) ((len <= 1) ? str[0] : PG_ID_12(str, len - 1) * 37 + str[len - 1])
00135 #define PG_ID_12(str, len) ((len <= 1) ? str[0] : PG_ID_13(str, len - 1) * 37 + str[len - 1])
00136 #define PG_ID_13(str, len) ((len <= 1) ? str[0] : PG_ID_14(str, len - 1) * 37 + str[len - 1])
00137 #define PG_ID_14(str, len) ((len <= 1) ? str[0] : PG_ID_15(str, len - 1) * 37 + str[len - 1])
00138 #define PG_ID_15(str, len) ((len <= 1) ? str[0] : PG_ID_16(str, len - 1) * 37 + str[len - 1])
00139 #define PG_ID_16(str, len) ((len <= 1) ? str[0] : PG_ID_17(str, len - 1) * 37 + str[len - 1])
00140 #define PG_ID_17(str, len) ((len <= 1) ? str[0] : PG_ID_18(str, len - 1) * 37 + str[len - 1])
00141 #define PG_ID_18(str, len) ((len <= 1) ? str[0] : PG_ID_19(str, len - 1) * 37 + str[len - 1])
00142 #define PG_ID_19(str, len) ((len <= 1) ? str[0] : PG_ID_20(str, len - 1) * 37 + str[len - 1])
00143 #define PG_ID_20(str, len) ((len <= 1) ? str[0] : PG_ID_21(str, len - 1) * 37 + str[len - 1])
00144 #define PG_ID_21(str, len) ((len <= 1) ? str[0] : PG_ID_22(str, len - 1) * 37 + str[len - 1])
00145 #define PG_ID_22(str, len) ((len <= 1) ? str[0] : PG_ID_23(str, len - 1) * 37 + str[len - 1])
00146 #define PG_ID_23(str, len) ((len <= 1) ? str[0] : PG_ID_24(str, len - 1) * 37 + str[len - 1])
00147 #define PG_ID_24(str, len) ((len <= 1) ? str[0] : PG_ID_25(str, len - 1) * 37 + str[len - 1])
00148 #define PG_ID_25(str, len) ((len <= 1) ? str[0] : PG_ID_26(str, len - 1) * 37 + str[len - 1])
00149 #define PG_ID_26(str, len) ((len <= 1) ? str[0] : PG_ID_27(str, len - 1) * 37 + str[len - 1])
00150 #define PG_ID_27(str, len) ((len <= 1) ? str[0] : PG_ID_28(str, len - 1) * 37 + str[len - 1])
00151 #define PG_ID_28(str, len) ((len <= 1) ? str[0] : PG_ID_29(str, len - 1) * 37 + str[len - 1])
00152 #define PG_ID_29(str, len) ((len <= 1) ? str[0] : PG_ID_30(str, len - 1) * 37 + str[len - 1])
00153 #define PG_ID_30(str, len) ((len <= 1) ? str[0] : PG_ID_31(str, len - 1) * 37 + str[len - 1])
00154 #define PG_ID_31(str, len) ((len <= 1) ? str[0] : PG_ID_32(str, len - 1) * 37 + str[len - 1])
00155 #define PG_ID_32(str, len) ((len <= 1) ? str[0] : 0)