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annotate nucleus/dm_defs.h @ 45:a2d5d622e19e

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sprintf/*.[ch]: author's gendered name corrected in the comments
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 29 Sep 2017 03:02:50 +0000
parents 75a11d740a02
children
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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