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annotate src/nucleus/pm_defs.h @ 19:399779c700da

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author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 15 May 2020 05:59:55 +0000
parents 92470e5d0b9e
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 /* pm_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 /* PM - Partition 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 Partition Memory component. */
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26 /* */
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27 /* DATA STRUCTURES */
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28 /* */
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29 /* PM_PCB Partition Pool control block */
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30 /* PM_HEADER Header of each partition */
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31 /* PM_SUSPEND Partition 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 /* removed protect structure, */
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52 /* added padding logic, */
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53 /* resulting in version 1.1 */
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54 /* */
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55 /* 03-18-1994 Verified version 1.1 */
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56 /* 04-17-1996 updated to version 1.2 */
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57 /* 03-24-1998 Released version 1.3 */
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58 /* 03-26-1999 Released 1.11m (new release */
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59 /* numbering scheme) */
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60 /* 04-17-2002 Released version 1.13m */
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61 /* 11-07-2002 Released version 1.14 */
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62 /*************************************************************************/
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63
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64 #include "cs_defs.h" /* Common service constants */
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65 #include "tc_defs.h" /* Thread control constants */
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66
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67
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68 /* Check to see if the file has been included already. */
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69
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70 #ifndef PM_DEFS
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71 #define PM_DEFS
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72
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73
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74 /* Define constants local to this component. */
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75
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76 #define PM_PARTITION_ID 0x50415254UL
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77 #define PM_OVERHEAD ((sizeof(PM_HEADER) + sizeof(UNSIGNED) \
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78 - 1)/sizeof(UNSIGNED)) * \
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79 sizeof(UNSIGNED)
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80
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81
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82 /* Define the Partition Pool Control Block data type. */
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83
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84 typedef struct PM_PCB_STRUCT
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85 {
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86 CS_NODE pm_created; /* Node for linking to */
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87 /* created partition list */
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88 UNSIGNED pm_id; /* Internal PCB ID */
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89 CHAR pm_name[NU_MAX_NAME]; /* Partition Pool name */
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90 VOID *pm_start_address; /* Starting pool address */
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91 UNSIGNED pm_pool_size; /* Size of pool */
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92 UNSIGNED pm_partition_size; /* Size of each partition */
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93 UNSIGNED pm_available; /* Available partitions */
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94 UNSIGNED pm_allocated; /* Allocated partitions */
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95 struct PM_HEADER_STRUCT
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96 *pm_available_list; /* Available list */
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97 BOOLEAN pm_fifo_suspend; /* Suspension type flag */
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98 #if PAD_1
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99 DATA_ELEMENT pm_padding[PAD_1];
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100 #endif
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101 UNSIGNED pm_tasks_waiting; /* Number of waiting tasks*/
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102 struct PM_SUSPEND_STRUCT
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103 *pm_suspension_list; /* Suspension list */
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104 } PM_PCB;
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105
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106
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107 /* Define the header structure that is in front of each memory partition. */
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108
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109 typedef struct PM_HEADER_STRUCT
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110 {
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111 struct PM_HEADER_STRUCT
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112 *pm_next_available; /* Next available memory */
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113 /* partition */
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114 PM_PCB *pm_partition_pool; /* Partition pool pointer */
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115 } PM_HEADER;
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116
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117
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118 /* Define the partition suspension structure. This structure is allocated
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119 off of the caller's stack. */
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120
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121 typedef struct PM_SUSPEND_STRUCT
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122 {
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123 CS_NODE pm_suspend_link; /* Link to suspend blocks */
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124 PM_PCB *pm_partition_pool; /* Pointer to pool */
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125 TC_TCB *pm_suspended_task; /* Task suspended */
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126 VOID *pm_return_pointer; /* Return memory address */
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127 STATUS pm_return_status; /* Return status */
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128 } PM_SUSPEND;
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129
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130 #endif
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131
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132
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133
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134