Mercurial > trustbridge > nss-cmake-static

annotate nss/lib/base/tracker.c @ 0:1e5118fa0cb1

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This is NSS with a Cmake Buildsyste To compile a static NSS library for Windows we've used the Chromium-NSS fork and added a Cmake buildsystem to compile it statically for Windows. See README.chromium for chromium changes and README.trustbridge for our modifications.
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 28 Jul 2014 10:47:06 +0200
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0
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1 /* This Source Code Form is subject to the terms of the Mozilla Public
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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4
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5 /*
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6 * tracker.c
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7 *
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8 * This file contains the code used by the pointer-tracking calls used
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9 * in the debug builds to catch bad pointers. The entire contents are
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10 * only available in debug builds (both internal and external builds).
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11 */
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12
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13 #ifndef BASE_H
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14 #include "base.h"
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15 #endif /* BASE_H */
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16
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17 #ifdef DEBUG
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18 /*
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19 * identity_hash
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20 *
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21 * This static callback is a PLHashFunction as defined in plhash.h
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22 * It merely returns the value of the object pointer as its hash.
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23 * There are no possible errors.
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24 */
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25
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26 static PLHashNumber PR_CALLBACK
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27 identity_hash
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28 (
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29 const void *key
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30 )
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31 {
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32 return (PLHashNumber)key;
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33 }
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34
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35 /*
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36 * trackerOnceFunc
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37 *
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38 * This function is called once, using the nssCallOnce function above.
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39 * It creates a new pointer tracker object; initialising its hash
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40 * table and protective lock.
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41 */
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42
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43 static PRStatus
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44 trackerOnceFunc
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45 (
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46 void *arg
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47 )
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48 {
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49 nssPointerTracker *tracker = (nssPointerTracker *)arg;
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50
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51 tracker->lock = PZ_NewLock(nssILockOther);
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52 if( (PZLock *)NULL == tracker->lock ) {
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53 return PR_FAILURE;
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54 }
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55
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56 tracker->table = PL_NewHashTable(0,
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57 identity_hash,
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58 PL_CompareValues,
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59 PL_CompareValues,
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60 (PLHashAllocOps *)NULL,
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61 (void *)NULL);
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62 if( (PLHashTable *)NULL == tracker->table ) {
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63 PZ_DestroyLock(tracker->lock);
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64 tracker->lock = (PZLock *)NULL;
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65 return PR_FAILURE;
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66 }
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67
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68 return PR_SUCCESS;
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69 }
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70
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71 /*
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72 * nssPointerTracker_initialize
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73 *
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74 * This method is only present in debug builds.
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75 *
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76 * This routine initializes an nssPointerTracker object. Note that
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77 * the object must have been declared *static* to guarantee that it
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78 * is in a zeroed state initially. This routine is idempotent, and
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79 * may even be safely called by multiple threads simultaneously with
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80 * the same argument. This routine returns a PRStatus value; if
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81 * successful, it will return PR_SUCCESS. On failure it will set an
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82 * error on the error stack and return PR_FAILURE.
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83 *
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84 * The error may be one of the following values:
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85 * NSS_ERROR_NO_MEMORY
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86 *
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87 * Return value:
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88 * PR_SUCCESS
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89 * PR_FAILURE
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90 */
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91
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92 NSS_IMPLEMENT PRStatus
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93 nssPointerTracker_initialize
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94 (
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95 nssPointerTracker *tracker
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96 )
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97 {
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98 PRStatus rv = PR_CallOnceWithArg(&tracker->once, trackerOnceFunc, tracker);
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99 if( PR_SUCCESS != rv ) {
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100 nss_SetError(NSS_ERROR_NO_MEMORY);
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101 }
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102
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103 return rv;
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104 }
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105
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106 #ifdef DONT_DESTROY_EMPTY_TABLES
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107 /* See same #ifdef below */
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108 /*
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109 * count_entries
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110 *
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111 * This static routine is a PLHashEnumerator, as defined in plhash.h.
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112 * It merely causes the enumeration function to count the number of
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113 * entries.
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114 */
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115
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116 static PRIntn PR_CALLBACK
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117 count_entries
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118 (
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119 PLHashEntry *he,
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120 PRIntn index,
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121 void *arg
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122 )
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123 {
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124 return HT_ENUMERATE_NEXT;
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125 }
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126 #endif /* DONT_DESTROY_EMPTY_TABLES */
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127
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128 /*
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129 * zero_once
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130 *
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131 * This is a guaranteed zeroed once block. It's used to help clear
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132 * the tracker.
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133 */
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134
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135 static const PRCallOnceType zero_once;
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136
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diff changeset
137 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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diff changeset
138 * nssPointerTracker_finalize
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139 *
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140 * This method is only present in debug builds.
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141 *
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142 * This routine returns the nssPointerTracker object to the pre-
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143 * initialized state, releasing all resources used by the object.
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144 * It will *NOT* destroy the objects being tracked by the pointer
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145 * (should any remain), and therefore cannot be used to "sweep up"
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146 * remaining objects. This routine returns a PRStatus value; if
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147 * successful, it will return PR_SUCCES. On failure it will set an
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148 * error on the error stack and return PR_FAILURE. If any objects
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149 * remain in the tracker when it is finalized, that will be treated
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Andre Heinecke <andre.heinecke@intevation.de>
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150 * as an error.
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151 *
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152 * The error may be one of the following values:
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153 * NSS_ERROR_INVALID_POINTER
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diff changeset
154 * NSS_ERROR_TRACKER_NOT_INITIALIZED
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155 * NSS_ERROR_TRACKER_NOT_EMPTY
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156 *
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157 * Return value:
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158 * PR_SUCCESS
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159 * PR_FAILURE
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160 */
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161
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162 NSS_IMPLEMENT PRStatus
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163 nssPointerTracker_finalize
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164 (
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165 nssPointerTracker *tracker
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166 )
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167 {
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168 PZLock *lock;
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169
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170 if( (nssPointerTracker *)NULL == tracker ) {
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171 nss_SetError(NSS_ERROR_INVALID_POINTER);
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172 return PR_FAILURE;
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173 }
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174
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175 if( (PZLock *)NULL == tracker->lock ) {
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176 nss_SetError(NSS_ERROR_TRACKER_NOT_INITIALIZED);
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177 return PR_FAILURE;
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178 }
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179
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180 lock = tracker->lock;
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181 PZ_Lock(lock);
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182
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183 if( (PLHashTable *)NULL == tracker->table ) {
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184 PZ_Unlock(lock);
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185 nss_SetError(NSS_ERROR_TRACKER_NOT_INITIALIZED);
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186 return PR_FAILURE;
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187 }
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188
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189 #ifdef DONT_DESTROY_EMPTY_TABLES
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190 /*
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191 * I changed my mind; I think we don't want this after all.
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192 * Comments?
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193 */
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194 count = PL_HashTableEnumerateEntries(tracker->table,
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Andre Heinecke <andre.heinecke@intevation.de>
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195 count_entries,
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196 (void *)NULL);
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197
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198 if( 0 != count ) {
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199 PZ_Unlock(lock);
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200 nss_SetError(NSS_ERROR_TRACKER_NOT_EMPTY);
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201 return PR_FAILURE;
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202 }
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203 #endif /* DONT_DESTROY_EMPTY_TABLES */
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204
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205 PL_HashTableDestroy(tracker->table);
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206 /* memset(tracker, 0, sizeof(nssPointerTracker)); */
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207 tracker->once = zero_once;
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208 tracker->lock = (PZLock *)NULL;
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209 tracker->table = (PLHashTable *)NULL;
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210
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211 PZ_Unlock(lock);
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212 PZ_DestroyLock(lock);
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213
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214 return PR_SUCCESS;
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215 }
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216
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217 /*
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218 * nssPointerTracker_add
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219 *
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220 * This method is only present in debug builds.
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221 *
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222 * This routine adds the specified pointer to the nssPointerTracker
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223 * object. It should be called in constructor objects to register
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224 * new valid objects. The nssPointerTracker is threadsafe, but this
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225 * call is not idempotent. This routine returns a PRStatus value;
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226 * if successful it will return PR_SUCCESS. On failure it will set
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227 * an error on the error stack and return PR_FAILURE.
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228 *
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229 * The error may be one of the following values:
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230 * NSS_ERROR_INVALID_POINTER
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diff changeset
231 * NSS_ERROR_NO_MEMORY
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232 * NSS_ERROR_TRACKER_NOT_INITIALIZED
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233 * NSS_ERROR_DUPLICATE_POINTER
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234 *
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235 * Return value:
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236 * PR_SUCCESS
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237 * PR_FAILURE
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238 */
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239
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240 NSS_IMPLEMENT PRStatus
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241 nssPointerTracker_add
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diff changeset
242 (
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243 nssPointerTracker *tracker,
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diff changeset
244 const void *pointer
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245 )
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246 {
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247 void *check;
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248 PLHashEntry *entry;
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249
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250 if( (nssPointerTracker *)NULL == tracker ) {
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251 nss_SetError(NSS_ERROR_INVALID_POINTER);
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252 return PR_FAILURE;
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253 }
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254
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255 if( (PZLock *)NULL == tracker->lock ) {
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256 nss_SetError(NSS_ERROR_TRACKER_NOT_INITIALIZED);
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257 return PR_FAILURE;
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258 }
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259
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260 PZ_Lock(tracker->lock);
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diff changeset
261
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262 if( (PLHashTable *)NULL == tracker->table ) {
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263 PZ_Unlock(tracker->lock);
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264 nss_SetError(NSS_ERROR_TRACKER_NOT_INITIALIZED);
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265 return PR_FAILURE;
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266 }
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267
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268 check = PL_HashTableLookup(tracker->table, pointer);
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269 if( (void *)NULL != check ) {
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270 PZ_Unlock(tracker->lock);
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271 nss_SetError(NSS_ERROR_DUPLICATE_POINTER);
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parents:
diff changeset
272 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
273 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
274
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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parents:
diff changeset
275 entry = PL_HashTableAdd(tracker->table, pointer, (void *)pointer);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
276
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
277 PZ_Unlock(tracker->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
278
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
279 if( (PLHashEntry *)NULL == entry ) {
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parents:
diff changeset
280 nss_SetError(NSS_ERROR_NO_MEMORY);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
281 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
282 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
283
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
284 return PR_SUCCESS;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
285 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
286
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
287 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
288 * nssPointerTracker_remove
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
289 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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parents:
diff changeset
290 * This method is only present in debug builds.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
291 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
292 * This routine removes the specified pointer from the
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
293 * nssPointerTracker object. It does not call any destructor for the
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
294 * object; rather, this should be called from the object's destructor.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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parents:
diff changeset
295 * The nssPointerTracker is threadsafe, but this call is not
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
296 * idempotent. This routine returns a PRStatus value; if successful
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
297 * it will return PR_SUCCESS. On failure it will set an error on the
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
298 * error stack and return PR_FAILURE.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
299 *
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
300 * The error may be one of the following values:
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
301 * NSS_ERROR_INVALID_POINTER
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
302 * NSS_ERROR_TRACKER_NOT_INITIALIZED
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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303 * NSS_ERROR_POINTER_NOT_REGISTERED
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
304 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
305 * Return value:
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
306 * PR_SUCCESS
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
307 * PR_FAILURE
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
308 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
309
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
310 NSS_IMPLEMENT PRStatus
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
311 nssPointerTracker_remove
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
312 (
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
313 nssPointerTracker *tracker,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
314 const void *pointer
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
315 )
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
316 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
317 PRBool registered;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
318
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
319 if( (nssPointerTracker *)NULL == tracker ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
320 nss_SetError(NSS_ERROR_INVALID_POINTER);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
321 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
322 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
323
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
324 if( (PZLock *)NULL == tracker->lock ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
325 nss_SetError(NSS_ERROR_TRACKER_NOT_INITIALIZED);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
326 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
327 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
328
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
329 PZ_Lock(tracker->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
330
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
331 if( (PLHashTable *)NULL == tracker->table ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
332 PZ_Unlock(tracker->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
333 nss_SetError(NSS_ERROR_TRACKER_NOT_INITIALIZED);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
334 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
335 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
336
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
337 registered = PL_HashTableRemove(tracker->table, pointer);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
338 PZ_Unlock(tracker->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
339
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
340 if( !registered ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
341 nss_SetError(NSS_ERROR_POINTER_NOT_REGISTERED);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
342 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
343 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
344
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
345 return PR_SUCCESS;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
346 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
347
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
348 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
349 * nssPointerTracker_verify
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
350 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
351 * This method is only present in debug builds.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
352 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
353 * This routine verifies that the specified pointer has been registered
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
354 * with the nssPointerTracker object. The nssPointerTracker object is
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
355 * threadsafe, and this call may be safely called from multiple threads
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
356 * simultaneously with the same arguments. This routine returns a
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
357 * PRStatus value; if the pointer is registered this will return
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
358 * PR_SUCCESS. Otherwise it will set an error on the error stack and
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
359 * return PR_FAILURE. Although the error is suitable for leaving on
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
360 * the stack, callers may wish to augment the information available by
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
361 * placing a more type-specific error on the stack.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
362 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
363 * The error may be one of the following values:
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
364 * NSS_ERROR_INVALID_POINTER
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
365 * NSS_ERROR_TRACKER_NOT_INITIALIZED
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
366 * NSS_ERROR_POINTER_NOT_REGISTERED
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
367 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
368 * Return value:
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
369 * PR_SUCCESS
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
370 * PR_FAILRUE
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
371 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
372
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
373 NSS_IMPLEMENT PRStatus
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
374 nssPointerTracker_verify
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
375 (
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
376 nssPointerTracker *tracker,
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
377 const void *pointer
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
378 )
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
379 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
380 void *check;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
381
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
382 if( (nssPointerTracker *)NULL == tracker ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
383 nss_SetError(NSS_ERROR_INVALID_POINTER);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
384 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
385 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
386
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
387 if( (PZLock *)NULL == tracker->lock ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
388 nss_SetError(NSS_ERROR_TRACKER_NOT_INITIALIZED);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
389 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
390 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
391
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
392 PZ_Lock(tracker->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
393
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
394 if( (PLHashTable *)NULL == tracker->table ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
395 PZ_Unlock(tracker->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
396 nss_SetError(NSS_ERROR_TRACKER_NOT_INITIALIZED);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
397 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
398 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
399
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
400 check = PL_HashTableLookup(tracker->table, pointer);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
401 PZ_Unlock(tracker->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
402
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
403 if( (void *)NULL == check ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
404 nss_SetError(NSS_ERROR_POINTER_NOT_REGISTERED);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
405 return PR_FAILURE;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
406 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
407
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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408 return PR_SUCCESS;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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409 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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410
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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411 #endif /* DEBUG */
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