1 martin 1.5 //%LICENSE////////////////////////////////////////////////////////////////

 2 martin 1.6 //

 3 martin 1.5 // Licensed to The Open Group (TOG) under one or more contributor license
 4            // agreements.  Refer to the OpenPegasusNOTICE.txt file distributed with
 5            // this work for additional information regarding copyright ownership.
 6            // Each contributor licenses this file to you under the OpenPegasus Open
 7            // Source License; you may not use this file except in compliance with the
 8            // License.

 9 martin 1.6 //

10 martin 1.5 // Permission is hereby granted, free of charge, to any person obtaining a
11            // copy of this software and associated documentation files (the "Software"),
12            // to deal in the Software without restriction, including without limitation
13            // the rights to use, copy, modify, merge, publish, distribute, sublicense,
14            // and/or sell copies of the Software, and to permit persons to whom the
15            // Software is furnished to do so, subject to the following conditions:

16 martin 1.6 //

17 martin 1.5 // The above copyright notice and this permission notice shall be included
18            // in all copies or substantial portions of the Software.

19 martin 1.6 //

20 martin 1.5 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

21 martin 1.6 // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

22 martin 1.5 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
23            // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
24            // CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25            // TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26            // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

27 martin 1.6 //

28 martin 1.5 //////////////////////////////////////////////////////////////////////////

29 mike   1.1 //
30            //%/////////////////////////////////////////////////////////////////////////////
31            
32            #include "ObjectCache.h"
33            
34            PEGASUS_NAMESPACE_BEGIN
35            

36 kumpf  1.3 const Uint8 _toLowerTable[256] =

37 mike   1.1 {
38                0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
39                0x08,0x09,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,
40                0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,
41                0x18,0x19,0x1A,0x1B,0x1C,0x1D,0x1E,0x1F,
42                0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
43                0x28,0x29,0x2A,0x2B,0x2C,0x2D,0x2E,0x2F,
44                0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,
45                0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F,
46                0x40,0x61,0x62,0x63,0x64,0x65,0x66,0x67,
47                0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
48                0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,
49                0x78,0x79,0x7A,0x5B,0x5C,0x5D,0x5E,0x5F,
50                0x60,0x61,0x62,0x63,0x64,0x65,0x66,0x67,
51                0x68,0x69,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,
52                0x70,0x71,0x72,0x73,0x74,0x75,0x76,0x77,
53                0x78,0x79,0x7A,0x7B,0x7C,0x7D,0x7E,0x7F,
54                0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,
55                0x88,0x89,0x8A,0x8B,0x8C,0x8D,0x8E,0x8F,
56                0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,
57                0x98,0x99,0x9A,0x9B,0x9C,0x9D,0x9E,0x9F,
58 mike   1.1     0xA0,0xA1,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,
59                0xA8,0xA9,0xAA,0xAB,0xAC,0xAD,0xAE,0xAF,
60                0xB0,0xB1,0xB2,0xB3,0xB4,0xB5,0xB6,0xB7,
61                0xB8,0xB9,0xBA,0xBB,0xBC,0xBD,0xBE,0xBF,
62                0xC0,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,
63                0xC8,0xC9,0xCA,0xCB,0xCC,0xCD,0xCE,0xCF,
64                0xD0,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6,0xD7,
65                0xD8,0xD9,0xDA,0xDB,0xDC,0xDD,0xDE,0xDF,
66                0xE0,0xE1,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,
67                0xE8,0xE9,0xEA,0xEB,0xEC,0xED,0xEE,0xEF,
68                0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,
69                0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,0xFE,0xFF,
70            };
71            
72            Uint32 ObjectCacheHash(const String& str)
73            {
74                Uint16* p = (Uint16*)str.getChar16Data();
75                Uint32 h = 0;
76                Uint32 n = str.size();
77            
78                while (n >= 4)
79 mike   1.1     {

80 kumpf  1.3         h = ((h << 9) | (h >> 23)) ^ (Uint32)_toLowerTable[p[0] & 0x007F];
81                    h = ((h << 9) | (h >> 23)) ^ (Uint32)_toLowerTable[p[1] & 0x007F];
82                    h = ((h << 9) | (h >> 23)) ^ (Uint32)_toLowerTable[p[2] & 0x007F];
83                    h = ((h << 9) | (h >> 23)) ^ (Uint32)_toLowerTable[p[3] & 0x007F];
84                    n -= 4;
85                    p += 4;

86 mike   1.1     }
87            
88                while (*p)

89 kumpf  1.3         h = ((h << 9) | (h >> 23)) ^ (Uint32)_toLowerTable[*p++ & 0x007F];

90 mike   1.1 
91                return h;
92            }
93            
94            PEGASUS_NAMESPACE_END