1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12 /* This code is in the public domain. 13 ** Version: 1.1 Author: Walt Karas 14 */ 15 16 /* Configure Heap Memory Manager for processor architecture, compiler, 17 ** and desired performance characteristics. This file is included 18 ** by heapmm.h, so these definitions can be used by code external to 19 ** HMM. You can change the default configuration, and/or create alternate 20 ** configuration(s). 21 */ 22 23 /* To allow for multiple configurations of HMM to be used in the same 24 ** compilation unit, undefine all preprocessor symbols that will be 25 ** defined below. 26 */ 27 #undef HMM_ADDR_ALIGN_UNIT 28 #undef HMM_BLOCK_ALIGN_UNIT 29 #undef HMM_UNIQUE 30 #undef HMM_DESC_PARAM 31 #undef HMM_SYM_TO_STRING 32 #undef HMM_SYM_TO_STRING 33 #undef HMM_AUDIT_FAIL 34 35 /* Turn X into a string after one macro expansion pass of X. This trick 36 ** works with both GCC and Visual C++. */ 37 #define HMM_SYM_TO_STRING(X) HMM_SYM_TO_STRING(X) 38 #define HMM_SYM_TO_STRING(X) #X 39 40 #ifndef HMM_CNFG_NUM 41 42 /* Default configuration. */ 43 44 /* Use hmm_ prefix to avoid identifier conflicts. */ 45 #define HMM_UNIQUE(BASE) hmm_ ## BASE 46 47 /* Number of bytes in an Address Alignment Unit (AAU). */ 48 //fwg 49 //#define HMM_ADDR_ALIGN_UNIT sizeof(int) 50 #define HMM_ADDR_ALIGN_UNIT 32 51 52 /* Number of AAUs in a Block Alignment Unit (BAU). */ 53 #define HMM_BLOCK_ALIGN_UNIT 1 54 55 /* Type of unsigned integer big enough to hold the size of a Block in AAUs. */ 56 typedef unsigned long HMM_UNIQUE(size_aau); 57 58 /* Type of unsigned integer big enough to hold the size of a Block/Chunk 59 ** in BAUs. The high bit will be robbed. */ 60 typedef unsigned long HMM_UNIQUE(size_bau); 61 62 void hmm_dflt_abort(const char *, const char *); 63 64 /* Actions upon a self-audit failure. Must expand to a single complete 65 ** statement. If you remove the definition of this macro, no self-auditing 66 ** will be performed. */ 67 #define HMM_AUDIT_FAIL \ 68 hmm_dflt_abort(__FILE__, HMM_SYM_TO_STRING(__LINE__)); 69 70 #elif HMM_CNFG_NUM == 0 71 72 /* Definitions for testing. */ 73 74 #define HMM_UNIQUE(BASE) thmm_ ## BASE 75 76 #define HMM_ADDR_ALIGN_UNIT sizeof(int) 77 78 #define HMM_BLOCK_ALIGN_UNIT 3 79 80 typedef unsigned HMM_UNIQUE(size_aau); 81 82 typedef unsigned short HMM_UNIQUE(size_bau); 83 84 /* Under this test setup, a long jump is done if there is a self-audit 85 ** failure. 86 */ 87 88 extern jmp_buf HMM_UNIQUE(jmp_buf); 89 extern const char *HMM_UNIQUE(fail_file); 90 extern unsigned HMM_UNIQUE(fail_line); 91 92 #define HMM_AUDIT_FAIL \ 93 { HMM_UNIQUE(fail_file) = __FILE__; HMM_UNIQUE(fail_line) = __LINE__; \ 94 longjmp(HMM_UNIQUE(jmp_buf), 1); } 95 96 #elif HMM_CNFG_NUM == 1 97 98 /* Put configuration 1 definitions here (if there is a configuration 1). */ 99 100 #elif HMM_CNFG_NUM == 2 101 102 /* Put configuration 2 definitions here. */ 103 104 #elif HMM_CNFG_NUM == 3 105 106 /* Put configuration 3 definitions here. */ 107 108 #elif HMM_CNFG_NUM == 4 109 110 /* Put configuration 4 definitions here. */ 111 112 #elif HMM_CNFG_NUM == 5 113 114 /* Put configuration 5 definitions here. */ 115 116 #endif 117
