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annotate gsm-fw/nucleus/dmf.c @ 203:99c234bf6a9b

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author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Mon, 23 Dec 2013 07:26:37 +0000
parents afceeeb2cba1
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 /* dmf.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 /* 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 routines to obtain facts about the Dynamic */
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25 /* Memory 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 /* DMF_Established_Memory_Pools Number of dynamic pools */
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34 /* DMF_Memory_Pool_Pointers Build memory pool pointer */
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35 /* list */
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36 /* DMF_Memory_Pool_Information Retrieve memory pool info */
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37 /* */
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38 /* DEPENDENCIES */
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39 /* */
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40 /* cs_extr.h Common Service functions */
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41 /* tc_extr.h Thread Control functions */
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42 /* dm_extr.h Partition functions */
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43 /* hi_extr.h History functions */
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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 /* 03-01-1994 Initial version of partition fact */
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50 /* service file, version 1.1 */
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51 /* */
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52 /* 03-18-1994 Verified version 1.1 */
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53 /* 04-17-1996 updated to version 1.2 */
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54 /* 11-18-1996 Protected Informational service */
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55 /* from NULL Control Block pointers */
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56 /* creating 1.2a. (SPR220) */
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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 #define NU_SOURCE_FILE
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64
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65
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66 #include "cs_extr.h" /* Common service functions */
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67 #include "tc_extr.h" /* Thread control functions */
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68 #include "dm_extr.h" /* Dynamic memory functions */
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69 #include "hi_extr.h" /* History functions */
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70
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71
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72 /* Define external inner-component global data references. */
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73
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74 extern CS_NODE *DMD_Created_Pools_List;
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75 extern UNSIGNED DMD_Total_Pools;
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76 extern TC_PROTECT DMD_List_Protect;
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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 /* */
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82 /* FUNCTION */
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83 /* */
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84 /* DMF_Established_Memory_Pools */
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85 /* */
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86 /* DESCRIPTION */
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87 /* */
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88 /* This function returns the current number of established */
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89 /* memory pools. Pools previously deleted are no longer */
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90 /* considered established. */
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91 /* */
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92 /* CALLED BY */
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93 /* */
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94 /* Application */
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95 /* */
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96 /* CALLS */
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97 /* */
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98 /* [TCT_Check_Stack] Stack checking function */
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99 /* */
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100 /* INPUTS */
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101 /* */
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102 /* None */
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103 /* */
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104 /* OUTPUTS */
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105 /* */
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106 /* DMD_Total_Pools Number of established */
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107 /* dynamic memory pools */
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108 /* */
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109 /* HISTORY */
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110 /* */
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111 /* DATE REMARKS */
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112 /* */
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113 /* 03-01-1993 Created initial version 1.0 */
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114 /* 04-19-1993 Verified version 1.0 */
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115 /* 03-01-1994 Modified function interface, */
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116 /* resulting in version 1.1 */
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117 /* */
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118 /* 03-18-1994 Verified version 1.1 */
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119 /* */
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120 /*************************************************************************/
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121 UNSIGNED DMF_Established_Memory_Pools(VOID)
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122 {
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123
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124
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125 #ifdef NU_ENABLE_STACK_CHECK
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126
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127 /* Call stack checking function to check for an overflow condition. */
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128 TCT_Check_Stack();
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129
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130 #endif
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131
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132 /* Return the number of established dynamic memory pools. */
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133 return(DMD_Total_Pools);
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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 /* */
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139 /* FUNCTION */
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140 /* */
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141 /* DMF_Memory_Pool_Pointers */
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142 /* */
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143 /* DESCRIPTION */
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144 /* */
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145 /* This function builds a list of pool pointers, starting at */
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146 /* the specified location. The number of pool pointers */
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147 /* placed in the list is equivalent to the total number of */
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148 /* pools or the maximum number of pointers specified in the */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
149 /* call. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
150 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
151 /* CALLED BY */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
152 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
153 /* Application */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
154 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
155 /* CALLS */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
156 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
157 /* [TCT_Check_Stack] Stack checking function */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
158 /* TCT_Protect Protect created list */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
159 /* TCT_Unprotect Release protection */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
160 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
161 /* INPUTS */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
162 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
163 /* pointer_list Pointer to the list area */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
164 /* maximum_pointers Maximum number of pointers */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
165 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
166 /* OUTPUTS */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
167 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
168 /* pointers Number of memory pools */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
169 /* placed in the list */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
170 /* HISTORY */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
171 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
172 /* DATE REMARKS */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
173 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
174 /* 03-01-1993 Created initial version 1.0 */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
175 /* 04-19-1993 Verified version 1.0 */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
176 /* 08-09-1993 Corrected pointer retrieval */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
177 /* loop, resulting in version 1.0a */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
178 /* 08-09-1993 Verified version 1.0a */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
179 /* 03-01-1994 Modified function interface, */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
180 /* resulting in version 1.1 */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
181 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
182 /* 03-18-1994 Verified version 1.1 */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
183 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
184 /*************************************************************************/
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
185 UNSIGNED DMF_Memory_Pool_Pointers(NU_MEMORY_POOL **pointer_list,
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
186 UNSIGNED maximum_pointers)
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
187 {
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
188
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
189 CS_NODE *node_ptr; /* Pointer to each PCB */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
190 UNSIGNED pointers; /* Number of pointers in list*/
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
191 NU_SUPERV_USER_VARIABLES
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
192
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
193 /* Switch to supervisor mode */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
194 NU_SUPERVISOR_MODE();
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
195
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
196 #ifdef NU_ENABLE_STACK_CHECK
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
197
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
198 /* Call stack checking function to check for an overflow condition. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
199 TCT_Check_Stack();
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
200
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
201 #endif
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
202
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
203 /* Initialize the number of pointers returned. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
204 pointers = 0;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
205
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
206 /* Protect against access to the list of created memory pools. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
207 TCT_Protect(&DMD_List_Protect);
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
208
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
209 /* Loop until all pool pointers are in the list or until the maximum
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
210 list size is reached. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
211 node_ptr = DMD_Created_Pools_List;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
212 while ((node_ptr) && (pointers < maximum_pointers))
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
213 {
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
214
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
215 /* Place the node into the destination list. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
216 *pointer_list++ = (NU_MEMORY_POOL *) node_ptr;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
217
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
218 /* Increment the pointers variable. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
219 pointers++;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
220
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
221 /* Position the node pointer to the next node. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
222 node_ptr = node_ptr -> cs_next;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
223
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
224 /* Determine if the pointer is at the head of the list. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
225 if (node_ptr == DMD_Created_Pools_List)
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
226
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
227 /* The list search is complete. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
228 node_ptr = NU_NULL;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
229 }
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
230
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
231 /* Release protection of the list of created pools. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
232 TCT_Unprotect();
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
233
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
234 /* Return to user mode */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
235 NU_USER_MODE();
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
236
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
237 /* Return the number of pointers in the list. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
238 return(pointers);
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
239 }
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
240
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
241
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
242 /*************************************************************************/
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
243 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
244 /* FUNCTION */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
245 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
246 /* DMF_Memory_Pool_Information */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
247 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
248 /* DESCRIPTION */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
249 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
250 /* This function returns information about the specified memory */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
251 /* pool. However, if the supplied memory pool pointer is */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
252 /* invalid, the function simply returns an error status. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
253 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
254 /* CALLED BY */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
255 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
256 /* Application */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
257 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
258 /* CALLS */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
259 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
260 /* [TCT_Check_Stack] Stack checking function */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
261 /* TCT_Protect Protect memory pool */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
262 /* TCT_Unprotect Release protection */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
263 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
264 /* INPUTS */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
265 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
266 /* pool_ptr Pointer to the memory pool */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
267 /* name Destination for the name */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
268 /* start_address Destination for the starting */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
269 /* memory address of the pool */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
270 /* pool_size Destination for the pool's */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
271 /* total size */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
272 /* min_allocation Destination for the minimum */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
273 /* block allocation size */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
274 /* available Destination for the available*/
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
275 /* number of bytes in pool */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
276 /* suspend_type Destination for the type of */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
277 /* suspension */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
278 /* tasks_waiting Destination for the tasks */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
279 /* waiting count */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
280 /* first_task Destination for the pointer */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
281 /* to the first task waiting */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
282 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
283 /* OUTPUTS */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
284 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
285 /* NU_SUCCESS If a valid pool pointer */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
286 /* is supplied */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
287 /* NU_INVALID_POOL If pool pointer invalid */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
288 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
289 /* HISTORY */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
290 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
291 /* DATE REMARKS */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
292 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
293 /* 03-01-1993 Created initial version 1.0 */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
294 /* 04-19-1993 Verified version 1.0 */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
295 /* 03-01-1994 Modified function interface, */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
296 /* resulting in version 1.1 */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
297 /* */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
298 /* 03-18-1994 Verified version 1.1 */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
299 /* 11-18-1996 Corrected SPR220. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
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300 /* */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
301 /*************************************************************************/
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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302 STATUS DMF_Memory_Pool_Information(NU_MEMORY_POOL *pool_ptr, CHAR *name,
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
303 VOID **start_address, UNSIGNED *pool_size,
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
304 UNSIGNED *min_allocation, UNSIGNED *available,
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
305 OPTION *suspend_type, UNSIGNED *tasks_waiting,
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
306 NU_TASK **first_task)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
307 {
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
308
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
309 DM_PCB *pool; /* Pool control block ptr */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
310 INT i; /* Working integer variable */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
311 STATUS completion; /* Completion status */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
312 NU_SUPERV_USER_VARIABLES
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
313
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
314 /* Switch to supervisor mode */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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315 NU_SUPERVISOR_MODE();
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
316
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
317 /* Move input pool pointer into internal pointer. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
318 pool = (DM_PCB *) pool_ptr;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
319
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
320 #ifdef NU_ENABLE_STACK_CHECK
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
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321
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
322 /* Call stack checking function to check for an overflow condition. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
323 TCT_Check_Stack();
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
324
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
325 #endif
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
326
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
327 /* Determine if this memory pool id is valid. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
328 if ((pool != NU_NULL) && (pool -> dm_id == DM_DYNAMIC_ID))
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
329 {
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
330
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
331 /* Setup protection of the memory pool. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
332 TCT_Protect(&(pool -> dm_protect));
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
333
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
334 /* The memory pool pointer is valid. Reflect this in the completion
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
335 status and fill in the actual information. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
336 completion = NU_SUCCESS;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
337
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
338 /* Copy the memory pool's name. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
339 for (i = 0; i < NU_MAX_NAME; i++)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
340 *name++ = pool -> dm_name[i];
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
341
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
342 /* Determine the suspension type. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
343 if (pool -> dm_fifo_suspend)
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
344 *suspend_type = NU_FIFO;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
345 else
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
346 *suspend_type = NU_PRIORITY;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
347
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
348 /* Retrieve information directly out of the control structure. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
349 *start_address = pool -> dm_start_address;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
350 *pool_size = pool -> dm_pool_size;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
351 *min_allocation = pool -> dm_min_allocation;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
352 *available = pool -> dm_available;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
353
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
354 /* Retrieve the number of tasks waiting and the pointer to the
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
355 first task waiting. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
356 *tasks_waiting = pool -> dm_tasks_waiting;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
357 if (pool -> dm_suspension_list)
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
358
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
359 /* There is a task waiting. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
360 *first_task = (NU_TASK *)
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
361 (pool -> dm_suspension_list) -> dm_suspended_task;
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
362 else
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
363
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
364 /* There are no tasks waiting. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
365 *first_task = NU_NULL;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
366
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
367 /* Release protection of the memory pool. */
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
368 TCT_Unprotect();
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
369 }
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
370 else
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
371
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
372 /* Indicate that the memory pool pointer is invalid. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
373 completion = NU_INVALID_POOL;
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
374
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
375 /* Return to user mode */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
376 NU_USER_MODE();
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
377
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
378 /* Return the appropriate completion status. */
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Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
379 return(completion);
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
380 }
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
381
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
382
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
383
947b1f473960 beginning of nuc-fw
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff changeset
384