vpx_mem/memory_manager/include/hmm_cnfg.h

   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