FreeCalypso > hg > ffs-editor
annotate src/nucleus/dm_defs.h @ 0:92470e5d0b9e
src: partial import from FC Selenite
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 15 May 2020 01:28:16 +0000 |
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1 /*************************************************************************/ |
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2 /* */ |
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3 /* Copyright Mentor Graphics Corporation 2002 */ |
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4 /* All Rights Reserved. */ |
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5 /* */ |
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6 /* THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION WHICH IS */ |
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7 /* THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS LICENSORS AND IS */ |
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8 /* SUBJECT TO LICENSE TERMS. */ |
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9 /* */ |
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10 /*************************************************************************/ |
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11 |
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12 /*************************************************************************/ |
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13 /* */ |
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14 /* FILE NAME VERSION */ |
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15 /* */ |
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16 /* dm_defs.h Nucleus PLUS 1.14 */ |
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17 /* */ |
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18 /* COMPONENT */ |
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19 /* */ |
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20 /* DM - Dynamic Memory Management */ |
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21 /* */ |
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22 /* DESCRIPTION */ |
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23 /* */ |
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24 /* This file contains data structure definitions and constants for */ |
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25 /* the Dynamic Memory component. */ |
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26 /* */ |
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27 /* DATA STRUCTURES */ |
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28 /* */ |
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29 /* DM_PCB Dynamic Pool control block */ |
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30 /* DM_HEADER Header of each memory block */ |
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31 /* DM_SUSPEND Memory suspension block */ |
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32 /* */ |
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33 /* FUNCTIONS */ |
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34 /* */ |
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35 /* None */ |
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36 /* */ |
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37 /* DEPENDENCIES */ |
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38 /* */ |
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39 /* cs_defs.h Common service definitions */ |
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40 /* tc_defs.h Thread Control definitions */ |
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41 /* */ |
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42 /* HISTORY */ |
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43 /* */ |
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44 /* DATE REMARKS */ |
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45 /* */ |
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46 /* 03-01-1993 Created initial version 1.0 */ |
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47 /* 04-19-1993 Verified version 1.0 */ |
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48 /* 03-01-1994 Moved include files outside of */ |
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49 /* the file #ifndef to allow the */ |
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50 /* use of actual data structures, */ |
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51 /* added padding logic, */ |
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52 /* resulting in version 1.1 */ |
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53 /* */ |
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54 /* 03-18-1994 Verified version 1.1 */ |
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55 /* 04-17-1996 updated to version 1.2 */ |
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56 /* 01-07-1997 Added missing PAD_1 field to */ |
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57 /* DM_HEADER_STRUCT to be */ |
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58 /* consistent with other PLUS */ |
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59 /* structures creating 1.2a. */ |
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60 /* 03-24-1998 Released version 1.3. */ |
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61 /* 03-26-1999 Released 1.11m (new release */ |
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62 /* numbering scheme) */ |
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63 /* 04-17-2002 Released version 1.13m */ |
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64 /* 11-07-2002 Released version 1.14 */ |
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65 /*************************************************************************/ |
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66 |
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67 #include "cs_defs.h" /* Common service constants */ |
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68 #include "tc_defs.h" /* Thread control constants */ |
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69 |
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70 |
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71 /* Check to see if the file has been included already. */ |
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72 |
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73 #ifndef DM_DEFS |
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74 #define DM_DEFS |
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75 |
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76 |
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77 /* Adjust a size to something that is evenly divisible by the number of bytes |
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78 in an UNSIGNED data type. */ |
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79 |
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80 #define DM_ADJUSTED_SIZE(size) \ |
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81 ((((size) + sizeof(UNSIGNED) - 1)/sizeof(UNSIGNED)) * sizeof(UNSIGNED)) |
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82 |
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83 #define DM_ADJUSTED_ALIGNMENT(alignment) DM_ADJUSTED_SIZE(alignment) |
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84 |
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85 /* Define constants local to this component. */ |
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86 |
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87 #define DM_DYNAMIC_ID 0x44594e41UL |
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88 #define DM_OVERHEAD ((sizeof(DM_HEADER) + sizeof(UNSIGNED) \ |
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89 - 1)/sizeof(UNSIGNED)) * \ |
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90 sizeof(UNSIGNED) |
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91 |
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92 |
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93 /* Define the Dynamic Pool Control Block data type. */ |
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94 |
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95 typedef struct DM_PCB_STRUCT |
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96 { |
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97 CS_NODE dm_created; /* Node for linking to */ |
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98 /* created dynamic pools */ |
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99 TC_PROTECT dm_protect; /* Protection structure */ |
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100 UNSIGNED dm_id; /* Internal PCB ID */ |
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101 CHAR dm_name[NU_MAX_NAME]; /* Dynamic Pool name */ |
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102 VOID *dm_start_address; /* Starting pool address */ |
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103 UNSIGNED dm_pool_size; /* Size of pool */ |
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104 UNSIGNED dm_min_allocation; /* Minimum allocate size */ |
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105 UNSIGNED dm_available; /* Total available bytes */ |
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106 struct DM_HEADER_STRUCT |
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107 *dm_memory_list; /* Memory list */ |
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108 struct DM_HEADER_STRUCT |
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109 *dm_search_ptr; /* Search pointer */ |
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110 BOOLEAN dm_fifo_suspend; /* Suspension type flag */ |
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111 #if PAD_1 |
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112 DATA_ELEMENT dm_padding[PAD_1]; |
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113 #endif |
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114 UNSIGNED dm_tasks_waiting; /* Number of waiting tasks*/ |
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115 struct DM_SUSPEND_STRUCT |
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116 *dm_suspension_list; /* Suspension list */ |
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117 } DM_PCB; |
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118 |
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119 |
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120 /* Define the header structure that is in front of each memory block. */ |
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121 |
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122 typedef struct DM_HEADER_STRUCT |
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123 { |
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124 struct DM_HEADER_STRUCT |
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125 *dm_next_memory, /* Next memory block */ |
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126 *dm_previous_memory; /* Previous memory block */ |
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127 BOOLEAN dm_memory_free; /* Memory block free flag */ |
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128 #if PAD_1 |
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129 DATA_ELEMENT dm_padding[PAD_1]; |
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130 #endif |
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131 DM_PCB *dm_memory_pool; /* Dynamic pool pointer */ |
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132 } DM_HEADER; |
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133 |
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134 |
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135 /* Define the dynamic memory suspension structure. This structure is |
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136 allocated off of the caller's stack. */ |
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137 |
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138 typedef struct DM_SUSPEND_STRUCT |
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139 { |
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140 CS_NODE dm_suspend_link; /* Link to suspend blocks */ |
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141 DM_PCB *dm_memory_pool; /* Pointer to pool */ |
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142 UNSIGNED dm_request_size; /* Size of memory request */ |
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143 TC_TCB *dm_suspended_task; /* Task suspended */ |
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144 VOID *dm_return_pointer; /* Return memory address */ |
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145 STATUS dm_return_status; /* Return status */ |
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146 } DM_SUSPEND; |
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147 |
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148 #endif |
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149 |
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150 |
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151 |
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152 |
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153 |