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annotate src/nucleus/evi.c @ 0:92470e5d0b9e

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src: partial import from FC Selenite
author Mychaela Falconia <falcon@freecalypso.org>
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 /* evi.c 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 /* EV - Event Group 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 the initialization routine for the Event */
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25 /* Group Management component. */
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26 /* */
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27 /* DATA STRUCTURES */
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28 /* */
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29 /* None */
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30 /* */
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31 /* FUNCTIONS */
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32 /* */
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33 /* EVI_Initialize Event Group Management Init */
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34 /* */
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35 /* DEPENDENCIES */
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36 /* */
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37 /* ev_defs.h Event Group component const. */
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38 /* */
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39 /* HISTORY */
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40 /* */
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41 /* DATE REMARKS */
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42 /* */
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43 /* 03-01-1993 Created initial version 1.0 */
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44 /* 04-19-1993 Verified version 1.0 */
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45 /* 03-01-1994 Modified copyright, resulting in */
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46 /* version 1.1 */
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47 /* */
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48 /* 03-18-1994 Verified version 1.1 */
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49 /* 04-17-1996 updated to version 1.2 */
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50 /* 03-24-1998 Released version 1.3 */
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51 /* 03-26-1999 Released 1.11m (new release */
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52 /* numbering scheme) */
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53 /* 04-17-2002 Released version 1.13m */
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54 /* 11-07-2002 Released version 1.14 */
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55 /*************************************************************************/
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56 #define NU_SOURCE_FILE
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57
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58
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59 #include "ev_defs.h" /* Event Group constants */
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60 #include "ev_extr.h" /* Event Group interfaces */
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61
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62
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63 /* Define external inner-component global data references. */
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64
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65 extern CS_NODE *EVD_Created_Event_Groups_List;
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66 extern UNSIGNED EVD_Total_Event_Groups;
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67 extern TC_PROTECT EVD_List_Protect;
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68
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69
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70 /*************************************************************************/
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71 /* */
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72 /* FUNCTION */
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73 /* */
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74 /* EVI_Initialize */
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75 /* */
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76 /* DESCRIPTION */
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77 /* */
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78 /* This function initializes the data structures that control the */
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79 /* operation of the Event Group component (EV). There are no */
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80 /* event groups initially. This routine must be called from */
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81 /* Supervisor mode in Supervisor/User mode switching kernels. */
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82 /* */
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83 /* CALLED BY */
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84 /* */
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85 /* INC_Initialize System initialization */
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86 /* */
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87 /* CALLS */
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88 /* */
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89 /* None */
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90 /* */
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91 /* INPUTS */
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92 /* */
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93 /* None */
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94 /* */
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95 /* OUTPUTS */
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96 /* */
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97 /* EVD_Created_Event_Groups_List List of created event groups */
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98 /* EVD_Total_Event_Groups Number of created event */
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99 /* groups */
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100 /* EVD_List_Protect Protection for event group */
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101 /* list */
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102 /* */
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103 /* HISTORY */
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104 /* */
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105 /* DATE REMARKS */
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106 /* */
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107 /* 03-01-1993 Created initial version 1.0 */
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108 /* 04-19-1993 Verified version 1.0 */
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109 /* */
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110 /*************************************************************************/
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111 VOID EVI_Initialize(VOID)
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112 {
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113 NU_SUPERV_USER_VARIABLES
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114
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115 /* Switch to supervisor mode */
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116 NU_SUPERVISOR_MODE();
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117
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118 /* Initialize the created event group list to NU_NULL. */
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119 EVD_Created_Event_Groups_List = NU_NULL;
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120
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121 /* Initialize the total number of created event groups to 0. */
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122 EVD_Total_Event_Groups = 0;
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123
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124 /* Initialize the list protection structure. */
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125 EVD_List_Protect.tc_tcb_pointer = NU_NULL;
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126
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127 /* Return to user mode */
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128 NU_USER_MODE();
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129 }
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130
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131
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132
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133
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134
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135