FreeCalypso > hg > freecalypso-sw
annotate gsm-fw/nucleus/pif.c @ 421:4f8a9b2229e9
loadtool.help: updates for Compal target support
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Thu, 19 Jun 2014 00:23:28 +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 /* pif.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 /* PI - Pipe 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 routines to obtain facts about the Pipe */ |
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25 /* 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 /* PIF_Established_Pipes Number of created pipes */ |
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34 /* PIF_Pipe_Information Retrieve pipe information */ |
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35 /* PIF_Pipe_Pointers Build pipe pointer list */ |
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36 /* */ |
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37 /* DEPENDENCIES */ |
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38 /* */ |
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39 /* cs_extr.h Common Service functions */ |
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40 /* tc_extr.h Thread Control functions */ |
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41 /* pi_extr.h Pipe functions */ |
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42 /* hi_extr.h History functions */ |
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43 /* */ |
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44 /* HISTORY */ |
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45 /* */ |
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46 /* DATE REMARKS */ |
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47 /* */ |
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48 /* 03-01-1994 Initial version of pipe fact */ |
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49 /* service file, version 1.1 */ |
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50 /* */ |
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51 /* 03-18-1994 Verified version 1.1 */ |
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52 /* 04-17-1996 updated to version 1.2 */ |
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53 /* 11-18-1996 Protected Informational service */ |
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54 /* from NULL Control Block pointers */ |
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55 /* creating 1.2a. (SPR220) */ |
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56 /* 03-24-1998 Released version 1.3 */ |
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57 /* 03-26-1999 Released 1.11m (new release */ |
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58 /* numbering scheme) */ |
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59 /* 04-17-2002 Released version 1.13m */ |
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60 /* 11-07-2002 Released version 1.14 */ |
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61 /*************************************************************************/ |
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62 #define NU_SOURCE_FILE |
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63 |
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64 |
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65 #include "cs_extr.h" /* Common service functions */ |
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66 #include "tc_extr.h" /* Thread control functions */ |
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67 #include "pi_extr.h" /* Pipe functions */ |
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68 #include "hi_extr.h" /* History functions */ |
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69 |
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70 |
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71 /* Define external inner-component global data references. */ |
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72 |
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73 extern CS_NODE *PID_Created_Pipes_List; |
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74 extern UNSIGNED PID_Total_Pipes; |
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75 extern TC_PROTECT PID_List_Protect; |
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76 |
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77 |
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78 |
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79 /*************************************************************************/ |
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80 /* */ |
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81 /* FUNCTION */ |
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82 /* */ |
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83 /* PIF_Established_Pipes */ |
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84 /* */ |
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85 /* DESCRIPTION */ |
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86 /* */ |
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87 /* This function returns the current number of established */ |
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88 /* pipes. Pipes previously deleted are no longer considered */ |
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89 /* established. */ |
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90 /* */ |
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91 /* CALLED BY */ |
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92 /* */ |
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93 /* Application */ |
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94 /* */ |
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95 /* CALLS */ |
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96 /* */ |
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97 /* [TCT_Check_Stack] Stack checking function */ |
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98 /* */ |
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99 /* INPUTS */ |
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100 /* */ |
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101 /* None */ |
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102 /* */ |
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103 /* OUTPUTS */ |
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104 /* */ |
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105 /* PID_Total_Pipes Number of established */ |
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106 /* pipes */ |
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107 /* */ |
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108 /* HISTORY */ |
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109 /* */ |
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110 /* DATE REMARKS */ |
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111 /* */ |
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112 /* 03-01-1993 Created initial version 1.0 */ |
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113 /* 04-19-1993 Verified version 1.0 */ |
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114 /* 03-01-1994 Modified function interface, */ |
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115 /* resulting in version 1.1 */ |
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116 /* */ |
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117 /* 03-18-1994 Verified version 1.1 */ |
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118 /* */ |
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119 /*************************************************************************/ |
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120 UNSIGNED PIF_Established_Pipes(VOID) |
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121 { |
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122 |
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123 |
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124 #ifdef NU_ENABLE_STACK_CHECK |
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125 |
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126 /* Call stack checking function to check for an overflow condition. */ |
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127 TCT_Check_Stack(); |
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128 |
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129 #endif |
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130 |
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131 /* Return the number of established pipes. */ |
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132 return(PID_Total_Pipes); |
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133 } |
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134 |
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135 |
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136 /*************************************************************************/ |
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137 /* */ |
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138 /* FUNCTION */ |
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139 /* */ |
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140 /* PIF_Pipe_Pointers */ |
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141 /* */ |
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142 /* DESCRIPTION */ |
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143 /* */ |
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144 /* This function builds a list of pipe pointers, starting at the */ |
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145 /* specified location. The number of pipe pointers placed in the */ |
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146 /* list is equivalent to the total number of pipes or the maximum */ |
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147 /* number of pointers specified in the call. */ |
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148 /* */ |
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149 /* CALLED BY */ |
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150 /* */ |
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151 /* Application */ |
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152 /* */ |
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153 /* CALLS */ |
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154 /* */ |
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155 /* [TCT_Check_Stack] Stack checking function */ |
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156 /* TCT_Protect Protect created list */ |
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157 /* TCT_Unprotect Release protection */ |
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158 /* */ |
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159 /* INPUTS */ |
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160 /* */ |
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161 /* pointer_list Pointer to the list area */ |
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162 /* maximum_pointers Maximum number of pointers */ |
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163 /* */ |
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164 /* OUTPUTS */ |
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165 /* */ |
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166 /* pointers Number of pipe pointers */ |
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167 /* placed in the list */ |
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168 /* HISTORY */ |
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169 /* */ |
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170 /* DATE REMARKS */ |
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171 /* */ |
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172 /* 03-01-1993 Created initial version 1.0 */ |
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173 /* 04-19-1993 Verified version 1.0 */ |
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174 /* 08-09-1993 Corrected pointer retrieval */ |
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175 /* loop, resulting in version 1.0a */ |
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176 /* 08-09-1993 Verified version 1.0a */ |
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177 /* 03-01-1994 Modified function interface, */ |
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178 /* resulting in version 1.1 */ |
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179 /* */ |
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180 /* 03-18-1994 Verified version 1.1 */ |
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181 /* */ |
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182 /*************************************************************************/ |
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183 UNSIGNED PIF_Pipe_Pointers(NU_PIPE **pointer_list,UNSIGNED maximum_pointers) |
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184 { |
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185 |
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186 CS_NODE *node_ptr; /* Pointer to each QCB */ |
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187 UNSIGNED pointers; /* Number of pointers in list*/ |
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188 NU_SUPERV_USER_VARIABLES |
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189 |
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190 /* Switch to supervisor mode */ |
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191 NU_SUPERVISOR_MODE(); |
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192 |
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193 #ifdef NU_ENABLE_STACK_CHECK |
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194 |
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195 /* Call stack checking function to check for an overflow condition. */ |
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196 TCT_Check_Stack(); |
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197 |
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198 #endif |
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199 |
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200 /* Initialize the number of pointers returned. */ |
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201 pointers = 0; |
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202 |
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203 /* Protect against access to the list of created pipes. */ |
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204 TCT_Protect(&PID_List_Protect); |
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205 |
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206 /* Loop until all pipe pointers are in the list or until the maximum |
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207 list size is reached. */ |
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208 node_ptr = PID_Created_Pipes_List; |
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209 while ((node_ptr) && (pointers < maximum_pointers)) |
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210 { |
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211 |
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212 /* Place the node into the destination list. */ |
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213 *pointer_list++ = (NU_PIPE *) node_ptr; |
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214 |
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215 /* Increment the pointers variable. */ |
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216 pointers++; |
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217 |
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218 /* Position the node pointer to the next node. */ |
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219 node_ptr = node_ptr -> cs_next; |
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220 |
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221 /* Determine if the pointer is at the head of the list. */ |
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222 if (node_ptr == PID_Created_Pipes_List) |
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223 |
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224 /* The list search is complete. */ |
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225 node_ptr = NU_NULL; |
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226 } |
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227 |
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228 /* Release protection against access to the list of created pipes. */ |
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229 TCT_Unprotect(); |
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230 |
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231 /* Return to user mode */ |
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232 NU_USER_MODE(); |
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233 |
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234 /* Return the number of pointers in the list. */ |
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235 return(pointers); |
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236 } |
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237 |
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238 |
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239 /*************************************************************************/ |
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240 /* */ |
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241 /* FUNCTION */ |
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242 /* */ |
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243 /* PIF_Pipe_Information */ |
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244 /* */ |
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245 /* DESCRIPTION */ |
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246 /* */ |
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247 /* This function returns information about the specified pipe. */ |
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248 /* However, if the supplied pipe pointer is invalid, the */ |
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249 /* function simply returns an error status. */ |
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250 /* */ |
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251 /* CALLED BY */ |
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252 /* */ |
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253 /* Application */ |
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254 /* */ |
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255 /* CALLS */ |
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256 /* */ |
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257 /* [TCT_Check_Stack] Stack checking function */ |
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258 /* TCT_System_Protect Protect pipe */ |
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259 /* TCT_Unprotect Release protection */ |
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260 /* */ |
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261 /* INPUTS */ |
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262 /* */ |
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263 /* pipe_ptr Pointer to the pipe */ |
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264 /* name Destination for the name */ |
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265 /* start_address Destination for the start */ |
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266 /* address of the pipe */ |
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267 /* pipe_size Destination for pipe size */ |
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268 /* available Destination for available */ |
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269 /* room in pipe */ |
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270 /* messages Destination for number of */ |
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271 /* messages piped */ |
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272 /* message_type Destination for message type */ |
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273 /* message_size Destination for message size */ |
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274 /* suspend_type Destination for suspension */ |
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275 /* type */ |
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276 /* tasks_waiting Destination for the tasks */ |
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277 /* waiting count */ |
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278 /* first_task Destination for the pointer */ |
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279 /* to the first task waiting */ |
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280 /* */ |
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281 /* OUTPUTS */ |
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282 /* */ |
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283 /* NU_SUCCESS If a valid pipe pointer */ |
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284 /* is supplied */ |
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285 /* NU_INVALID_PIPE If pipe pointer invalid */ |
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286 /* */ |
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287 /* HISTORY */ |
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288 /* */ |
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289 /* DATE REMARKS */ |
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290 /* */ |
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291 /* 03-01-1993 Created initial version 1.0 */ |
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292 /* 04-19-1993 Verified version 1.0 */ |
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293 /* 03-01-1994 Modified function interface, */ |
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294 /* resulting in version 1.1 */ |
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295 /* */ |
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296 /* 03-18-1994 Verified version 1.1 */ |
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297 /* 11-18-1996 Corrected SPR220 */ |
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298 /* */ |
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299 /*************************************************************************/ |
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300 STATUS PIF_Pipe_Information(NU_PIPE *pipe_ptr, CHAR *name, |
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301 VOID **start_address, UNSIGNED *pipe_size, |
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302 UNSIGNED *available, UNSIGNED *messages, |
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303 OPTION *message_type, UNSIGNED *message_size, |
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304 OPTION *suspend_type, UNSIGNED *tasks_waiting, |
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305 NU_TASK **first_task) |
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306 { |
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307 |
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308 PI_PCB *pipe; /* Pipe control block ptr */ |
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309 INT i; /* Working integer variable */ |
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310 STATUS completion; /* Completion status */ |
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311 NU_SUPERV_USER_VARIABLES |
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312 |
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313 /* Switch to supervisor mode */ |
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314 NU_SUPERVISOR_MODE(); |
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315 |
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316 /* Move input pipe pointer into internal pointer. */ |
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317 pipe = (PI_PCB *) pipe_ptr; |
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318 |
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319 |
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320 #ifdef NU_ENABLE_STACK_CHECK |
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321 |
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322 /* Call stack checking function to check for an overflow condition. */ |
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323 TCT_Check_Stack(); |
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324 |
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325 #endif |
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326 |
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327 /* Determine if this pipe id is valid. */ |
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328 if ((pipe != NU_NULL) && (pipe -> pi_id == PI_PIPE_ID)) |
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329 { |
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330 |
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331 /* Setup protection of the pipe. */ |
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332 TCT_System_Protect(); |
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333 |
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334 /* The pipe pointer is valid. Reflect this in the completion |
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335 status and fill in the actual information. */ |
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336 completion = NU_SUCCESS; |
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337 |
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338 /* Copy the pipe's name. */ |
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339 for (i = 0; i < NU_MAX_NAME; i++) |
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340 *name++ = pipe -> pi_name[i]; |
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341 |
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342 /* Determine the suspension type. */ |
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343 if (pipe -> pi_fifo_suspend) |
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344 *suspend_type = NU_FIFO; |
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345 else |
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346 *suspend_type = NU_PRIORITY; |
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347 |
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348 /* Determine the message type. */ |
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349 if (pipe -> pi_fixed_size) |
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350 *message_type = NU_FIXED_SIZE; |
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351 else |
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352 *message_type = NU_VARIABLE_SIZE; |
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353 |
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354 /* Get various information about the pipe. */ |
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355 *start_address = (VOID *) pipe -> pi_start; |
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356 *pipe_size = pipe -> pi_pipe_size; |
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357 *available = pipe -> pi_available; |
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358 *messages = pipe -> pi_messages; |
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359 *message_size = pipe -> pi_message_size; |
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360 |
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361 /* Retrieve the number of tasks waiting and the pointer to the |
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362 first task waiting. */ |
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363 *tasks_waiting = pipe -> pi_tasks_waiting; |
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364 if (pipe -> pi_suspension_list) |
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365 |
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366 /* There is a task waiting. */ |
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367 *first_task = (NU_TASK *) |
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368 (pipe -> pi_suspension_list) -> pi_suspended_task; |
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369 else |
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370 |
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371 /* There are no tasks waiting. */ |
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372 *first_task = NU_NULL; |
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373 |
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374 /* Release protection of the pipe. */ |
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375 TCT_Unprotect(); |
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376 } |
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377 else |
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378 |
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379 /* Indicate that the pipe pointer is invalid. */ |
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380 completion = NU_INVALID_PIPE; |
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381 |
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|
382 /* Return to user mode */ |
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|
383 NU_USER_MODE(); |
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|
384 |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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385 /* Return the appropriate completion status. */ |
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parents:
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386 return(completion); |
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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387 } |
947b1f473960
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
388 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
389 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
390 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
391 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
392 |
947b1f473960
beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
393 |