FreeCalypso > hg > freecalypso-sw
annotate gsm-fw/nucleus/csc.c @ 522:2c9c2b95ddec
FC version of l1_rf12.c compiles
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Sun, 13 Jul 2014 07:48:14 +0000 |
parents | afceeeb2cba1 |
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rev | line source |
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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 /* csc.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 /* CS - Common Services */ |
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21 /* */ |
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22 /* DESCRIPTION */ |
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23 /* */ |
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24 /* This file contains linked list manipulation facilities used */ |
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25 /* throughout the Nucleus PLUS system. These facilities operate */ |
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26 /* on doubly-linked circular lists. */ |
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27 /* */ |
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28 /* DATA STRUCTURES */ |
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29 /* */ |
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30 /* None */ |
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31 /* */ |
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32 /* FUNCTIONS */ |
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33 /* */ |
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34 /* CSC_Place_On_List Place node at the end of a */ |
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35 /* list */ |
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36 /* CSC_Priority_Place_On_List Place node in priority order */ |
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37 /* on a list */ |
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38 /* CSC_Remove_From_List Remove a node from a list */ |
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39 /* */ |
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40 /* DEPENDENCIES */ |
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41 /* */ |
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42 /* nucleus.h Nucleus PLUS constants */ |
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43 /* cs_defs.h Common service definitions */ |
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44 /* */ |
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45 /* HISTORY */ |
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46 /* */ |
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47 /* DATE REMARKS */ |
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48 /* */ |
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49 /* 03-01-1993 Created initial version 1.0 */ |
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50 /* 04-19-1993 Verified version 1.0 */ |
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51 /* 03-01-1994 Changed void to VOID, removed */ |
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52 /* clearing link pointers during */ |
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53 /* removal of a node from a list, */ |
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54 /* resulting in version 1.1 */ |
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55 /* */ |
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56 /* 03-18-1994 Verified version 1.1 */ |
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57 /* 04-17-1996 updated to version 1.2 */ |
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58 /* 03-24-1998 Released version 1.3. */ |
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59 /* 03-26-1999 Released 1.11m (new release */ |
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60 /* numbering scheme) */ |
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61 /* 04-17-2002 Released version 1.13m */ |
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62 /* 11-07-2002 Released version 1.14 */ |
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63 /*************************************************************************/ |
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64 #define NU_SOURCE_FILE |
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65 |
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66 |
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67 #include "cs_defs.h" /* Include CS definitions */ |
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68 #include "cs_extr.h" /* Common service functions */ |
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69 |
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70 |
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71 /*************************************************************************/ |
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72 /* */ |
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73 /* FUNCTION */ |
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74 /* */ |
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75 /* CSC_Place_On_List */ |
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76 /* */ |
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77 /* DESCRIPTION */ |
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78 /* */ |
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79 /* This function places the specified node at the end of specified */ |
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80 /* linked list. */ |
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81 /* */ |
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82 /* CALLED BY */ |
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83 /* */ |
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84 /* various components */ |
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85 /* */ |
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86 /* CALLS */ |
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87 /* */ |
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88 /* None */ |
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89 /* */ |
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90 /* INPUTS */ |
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91 /* */ |
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92 /* head Pointer to head pointer */ |
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93 /* node Pointer to node to add */ |
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94 /* */ |
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95 /* OUTPUTS */ |
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96 /* */ |
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97 /* modified list */ |
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98 /* */ |
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99 /* HISTORY */ |
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100 /* */ |
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101 /* NAME DATE REMARKS */ |
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102 /* */ |
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103 /* W. Lamie 03-01-1993 Created initial version 1.0 */ |
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104 /* D. Lamie 04-19-1993 Verified version 1.0 */ |
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105 /* */ |
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106 /*************************************************************************/ |
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107 |
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108 #ifndef NU_INLINE |
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109 |
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110 VOID CSC_Place_On_List(CS_NODE **head, CS_NODE *new_node) |
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111 { |
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112 NU_SUPERV_USER_VARIABLES |
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113 |
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114 /* Switch to supervisor mode */ |
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115 NU_SUPERVISOR_MODE(); |
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116 |
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117 /* Determine if the list in non-empty. */ |
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118 if (*head) |
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119 { |
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120 |
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121 /* The list is not empty. Add the new node to the end of |
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122 the list. */ |
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123 new_node -> cs_previous = (*head) -> cs_previous; |
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124 (new_node -> cs_previous) -> cs_next = new_node; |
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125 new_node -> cs_next = (*head); |
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126 (new_node -> cs_next) -> cs_previous = new_node; |
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127 } |
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128 else |
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129 { |
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130 |
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131 /* The list is empty, setup the head and the new node. */ |
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132 (*head) = new_node; |
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133 new_node -> cs_previous = new_node; |
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134 new_node -> cs_next = new_node; |
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135 } |
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136 |
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137 /* Return to user mode */ |
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138 NU_USER_MODE(); |
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139 } |
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140 |
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141 #endif |
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142 |
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143 /*************************************************************************/ |
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144 /* */ |
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145 /* FUNCTION */ |
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146 /* */ |
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147 /* CSC_Priority_Place_On_List */ |
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148 /* */ |
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149 /* DESCRIPTION */ |
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150 /* */ |
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151 /* This function places the specified node after all other nodes on */ |
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152 /* the list of equal or greater priority. Note that lower */ |
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153 /* numerical values indicate greater priority. */ |
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154 /* */ |
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155 /* CALLED BY */ |
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156 /* */ |
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157 /* various components */ |
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158 /* */ |
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159 /* CALLS */ |
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160 /* */ |
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161 /* None */ |
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162 /* */ |
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163 /* INPUTS */ |
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164 /* */ |
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165 /* head Pointer to head pointer */ |
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166 /* node Pointer to node to add */ |
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167 /* */ |
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168 /* OUTPUTS */ |
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169 /* */ |
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170 /* modified list */ |
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171 /* */ |
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172 /* HISTORY */ |
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173 /* */ |
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174 /* NAME DATE REMARKS */ |
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175 /* */ |
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176 /* W. Lamie 03-01-1993 Created initial version 1.0 */ |
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177 /* D. Lamie 04-19-1993 Verified version 1.0 */ |
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178 /* */ |
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179 /*************************************************************************/ |
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180 |
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181 VOID CSC_Priority_Place_On_List(CS_NODE **head, CS_NODE *new_node) |
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182 { |
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183 |
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184 CS_NODE *search_ptr; /* List search pointer */ |
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185 NU_SUPERV_USER_VARIABLES |
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186 |
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187 /* Switch to supervisor mode */ |
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188 NU_SUPERVISOR_MODE(); |
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189 |
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190 /* Determine if the list in non-empty. */ |
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191 if (*head) |
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192 { |
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193 |
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194 /* Search the list to find the proper place for the new node. */ |
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195 search_ptr = (*head); |
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196 |
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197 /* Check for insertion before the first node on the list. */ |
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198 if (search_ptr -> cs_priority > new_node -> cs_priority) |
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199 { |
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|
200 |
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201 /* Update the head pointer to point at the new node. */ |
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202 (*head) = new_node; |
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203 } |
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204 else |
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|
205 { |
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|
206 |
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207 /* We know that the new node is not the highest priority and |
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208 must be placed somewhere after the head pointer. */ |
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|
209 |
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210 /* Move search pointer up to the next node since we are trying |
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211 to find the proper node to insert in front of. */ |
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212 search_ptr = search_ptr -> cs_next; |
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213 while ((search_ptr -> cs_priority <= new_node -> cs_priority) && |
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214 (search_ptr != (*head))) |
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|
215 { |
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|
216 |
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217 /* Move along to the next node. */ |
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218 search_ptr = search_ptr -> cs_next; |
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219 } |
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220 } |
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221 |
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222 /* Insert before search pointer. */ |
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223 new_node -> cs_previous = search_ptr -> cs_previous; |
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224 (new_node -> cs_previous) -> cs_next = new_node; |
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225 new_node -> cs_next = search_ptr; |
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226 (new_node -> cs_next) -> cs_previous = new_node; |
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227 } |
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228 else |
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229 { |
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230 |
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231 /* The list is empty, setup the head and the new node. */ |
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232 (*head) = new_node; |
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233 new_node -> cs_previous = new_node; |
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234 new_node -> cs_next = new_node; |
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|
235 } |
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236 |
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237 /* Return to user mode */ |
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238 NU_USER_MODE(); |
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239 } |
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240 |
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241 /*************************************************************************/ |
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242 /* */ |
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243 /* FUNCTION */ |
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244 /* */ |
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245 /* CSC_Remove_From_List */ |
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246 /* */ |
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247 /* DESCRIPTION */ |
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248 /* */ |
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249 /* This function removes the specified node from the specified */ |
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250 /* linked list. */ |
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251 /* */ |
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252 /* CALLED BY */ |
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253 /* */ |
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254 /* various components */ |
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255 /* */ |
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256 /* CALLS */ |
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257 /* */ |
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258 /* None */ |
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259 /* */ |
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260 /* INPUTS */ |
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261 /* */ |
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262 /* head Pointer to head pointer */ |
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263 /* node Pointer to node to add */ |
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264 /* */ |
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265 /* OUTPUTS */ |
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266 /* */ |
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267 /* modified list */ |
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268 /* */ |
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269 /* HISTORY */ |
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270 /* */ |
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271 /* NAME DATE REMARKS */ |
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272 /* */ |
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273 /* W. Lamie 03-01-1993 Created initial version 1.0 */ |
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274 /* D. Lamie 04-19-1993 Verified version 1.0 */ |
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275 /* W. Lamie 03-01-1994 Removed clearing link pointers */ |
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276 /* during removal of a node from */ |
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277 /* list, resulting in version 1.1 */ |
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278 /* R. Pfaff - */ |
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279 /* D. Lamie 03-18-1994 Verified version 1.1 */ |
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280 /* */ |
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281 /*************************************************************************/ |
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282 |
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283 #ifndef NU_INLINE |
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284 |
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285 VOID CSC_Remove_From_List(CS_NODE **head, CS_NODE *node) |
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286 { |
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287 NU_SUPERV_USER_VARIABLES |
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288 |
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289 /* Switch to supervisor mode */ |
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290 NU_SUPERVISOR_MODE(); |
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291 |
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292 /* Determine if this is the only node in the system. */ |
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293 if (node -> cs_previous == node) |
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294 { |
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295 |
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296 /* Yes, this is the only node in the system. Clear the node's |
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297 pointers and the head pointer. */ |
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298 (*head) = NU_NULL; |
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299 } |
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300 else |
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301 { |
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302 |
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303 /* Unlink the node from a multiple node list. */ |
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304 (node -> cs_previous) -> cs_next = node -> cs_next; |
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305 (node -> cs_next) -> cs_previous = node -> cs_previous; |
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306 |
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307 /* Check to see if the node to delete is at the head of the |
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308 list. */ |
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309 if (node == *head) |
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310 |
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311 /* Move the head pointer to the node after. */ |
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312 *head = node -> cs_next; |
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313 } |
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314 |
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315 /* Return to user mode */ |
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316 NU_USER_MODE(); |
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317 } |
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318 |
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319 #endif |
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320 |
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321 |
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322 |
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323 |
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324 |