Mercurial > trustbridge > nss-cmake-static

annotate nss/lib/ckfw/mutex.c @ 4:b513267f632f tip

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Build DBM module
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 18:58:03 +0200
parents 1e5118fa0cb1
children
rev   line source
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 * mutex.c
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7 *
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8 * This file implements a mutual-exclusion locking facility for Modules
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9 * using the NSS Cryptoki Framework.
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10 */
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11
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12 #ifndef CK_T
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13 #include "ck.h"
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14 #endif /* CK_T */
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15
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16 /*
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17 * NSSCKFWMutex
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18 *
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19 * NSSCKFWMutex_Destroy
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20 * NSSCKFWMutex_Lock
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21 * NSSCKFWMutex_Unlock
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22 *
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23 * nssCKFWMutex_Create
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24 * nssCKFWMutex_Destroy
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25 * nssCKFWMutex_Lock
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26 * nssCKFWMutex_Unlock
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27 *
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28 * -- debugging versions only --
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29 * nssCKFWMutex_verifyPointer
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30 *
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31 */
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32
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33 struct NSSCKFWMutexStr {
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34 PRLock *lock;
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35 };
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36
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37 #ifdef DEBUG
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38 /*
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39 * But first, the pointer-tracking stuff.
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40 *
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41 * NOTE: the pointer-tracking support in NSS/base currently relies
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42 * upon NSPR's CallOnce support. That, however, relies upon NSPR's
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43 * locking, which is tied into the runtime. We need a pointer-tracker
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44 * implementation that uses the locks supplied through C_Initialize.
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45 * That support, however, can be filled in later. So for now, I'll
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46 * just do this routines as no-ops.
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47 */
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48
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49 static CK_RV
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50 mutex_add_pointer
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51 (
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52 const NSSCKFWMutex *fwMutex
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53 )
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54 {
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55 return CKR_OK;
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56 }
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57
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58 static CK_RV
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59 mutex_remove_pointer
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60 (
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61 const NSSCKFWMutex *fwMutex
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62 )
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63 {
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64 return CKR_OK;
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65 }
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66
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67 NSS_IMPLEMENT CK_RV
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68 nssCKFWMutex_verifyPointer
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69 (
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70 const NSSCKFWMutex *fwMutex
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71 )
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72 {
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73 return CKR_OK;
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74 }
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75
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76 #endif /* DEBUG */
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77
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78 /*
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79 * nssCKFWMutex_Create
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80 *
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81 */
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82 NSS_EXTERN NSSCKFWMutex *
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83 nssCKFWMutex_Create
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84 (
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85 CK_C_INITIALIZE_ARGS_PTR pInitArgs,
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86 CryptokiLockingState LockingState,
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87 NSSArena *arena,
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88 CK_RV *pError
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89 )
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90 {
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91 NSSCKFWMutex *mutex;
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92
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93 mutex = nss_ZNEW(arena, NSSCKFWMutex);
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94 if (!mutex) {
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95 *pError = CKR_HOST_MEMORY;
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96 return (NSSCKFWMutex *)NULL;
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97 }
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98 *pError = CKR_OK;
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99 mutex->lock = NULL;
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100 if (LockingState == MultiThreaded) {
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101 mutex->lock = PR_NewLock();
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102 if (!mutex->lock) {
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103 *pError = CKR_HOST_MEMORY; /* we couldn't get the resource */
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104 }
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105 }
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106
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107 if( CKR_OK != *pError ) {
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108 (void)nss_ZFreeIf(mutex);
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109 return (NSSCKFWMutex *)NULL;
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110 }
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111
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112 #ifdef DEBUG
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113 *pError = mutex_add_pointer(mutex);
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114 if( CKR_OK != *pError ) {
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115 if (mutex->lock) {
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116 PR_DestroyLock(mutex->lock);
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117 }
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118 (void)nss_ZFreeIf(mutex);
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119 return (NSSCKFWMutex *)NULL;
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120 }
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121 #endif /* DEBUG */
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122
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123 return mutex;
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124 }
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125
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126 /*
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127 * nssCKFWMutex_Destroy
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128 *
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129 */
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130 NSS_EXTERN CK_RV
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131 nssCKFWMutex_Destroy
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132 (
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133 NSSCKFWMutex *mutex
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134 )
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135 {
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136 CK_RV rv = CKR_OK;
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137
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138 #ifdef NSSDEBUG
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139 rv = nssCKFWMutex_verifyPointer(mutex);
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140 if( CKR_OK != rv ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
141 return rv;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
142 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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143 #endif /* NSSDEBUG */
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144
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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145 if (mutex->lock) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
146 PR_DestroyLock(mutex->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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147 }
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Andre Heinecke <andre.heinecke@intevation.de>
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148
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149 #ifdef DEBUG
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150 (void)mutex_remove_pointer(mutex);
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151 #endif /* DEBUG */
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152
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153 (void)nss_ZFreeIf(mutex);
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154 return rv;
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Andre Heinecke <andre.heinecke@intevation.de>
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155 }
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Andre Heinecke <andre.heinecke@intevation.de>
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156
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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157 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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158 * nssCKFWMutex_Lock
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Andre Heinecke <andre.heinecke@intevation.de>
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159 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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160 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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161 NSS_EXTERN CK_RV
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Andre Heinecke <andre.heinecke@intevation.de>
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162 nssCKFWMutex_Lock
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Andre Heinecke <andre.heinecke@intevation.de>
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163 (
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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164 NSSCKFWMutex *mutex
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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165 )
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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166 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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167 #ifdef NSSDEBUG
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168 CK_RV rv = nssCKFWMutex_verifyPointer(mutex);
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Andre Heinecke <andre.heinecke@intevation.de>
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169 if( CKR_OK != rv ) {
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170 return rv;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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171 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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172 #endif /* NSSDEBUG */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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173 if (mutex->lock) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
174 PR_Lock(mutex->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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175 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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176
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Andre Heinecke <andre.heinecke@intevation.de>
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177 return CKR_OK;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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178 }
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Andre Heinecke <andre.heinecke@intevation.de>
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179
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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180 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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181 * nssCKFWMutex_Unlock
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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182 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
183 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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184 NSS_EXTERN CK_RV
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Andre Heinecke <andre.heinecke@intevation.de>
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185 nssCKFWMutex_Unlock
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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186 (
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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187 NSSCKFWMutex *mutex
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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188 )
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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189 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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190 PRStatus nrv;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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191 #ifdef NSSDEBUG
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192 CK_RV rv = nssCKFWMutex_verifyPointer(mutex);
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193
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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194 if( CKR_OK != rv ) {
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Andre Heinecke <andre.heinecke@intevation.de>
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195 return rv;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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196 }
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197 #endif /* NSSDEBUG */
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198
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199 if (!mutex->lock)
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200 return CKR_OK;
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
201
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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202 nrv = PR_Unlock(mutex->lock);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
203
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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204 /* if unlock fails, either we have a programming error, or we have
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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205 * some sort of hardware failure... in either case return CKR_DEVICE_ERROR.
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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206 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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207 return nrv == PR_SUCCESS ? CKR_OK : CKR_DEVICE_ERROR;
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208 }
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209
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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210 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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211 * NSSCKFWMutex_Destroy
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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212 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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213 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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214 NSS_EXTERN CK_RV
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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215 NSSCKFWMutex_Destroy
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
216 (
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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217 NSSCKFWMutex *mutex
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Andre Heinecke <andre.heinecke@intevation.de>
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218 )
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
219 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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220 #ifdef DEBUG
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221 CK_RV rv = nssCKFWMutex_verifyPointer(mutex);
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Andre Heinecke <andre.heinecke@intevation.de>
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222 if( CKR_OK != rv ) {
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Andre Heinecke <andre.heinecke@intevation.de>
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223 return rv;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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224 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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225 #endif /* DEBUG */
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226
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227 return nssCKFWMutex_Destroy(mutex);
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228 }
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229
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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230 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
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231 * NSSCKFWMutex_Lock
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
232 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
233 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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234 NSS_EXTERN CK_RV
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
235 NSSCKFWMutex_Lock
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
236 (
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
237 NSSCKFWMutex *mutex
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
238 )
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
239 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
240 #ifdef DEBUG
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diff changeset
241 CK_RV rv = nssCKFWMutex_verifyPointer(mutex);
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Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
242 if( CKR_OK != rv ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
243 return rv;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
244 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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245 #endif /* DEBUG */
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246
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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247 return nssCKFWMutex_Lock(mutex);
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248 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
249
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
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diff changeset
250 /*
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
251 * NSSCKFWMutex_Unlock
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
252 *
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
253 */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
254 NSS_EXTERN CK_RV
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
255 NSSCKFWMutex_Unlock
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
256 (
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
257 NSSCKFWMutex *mutex
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
258 )
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
259 {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
260 #ifdef DEBUG
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
261 CK_RV rv = nssCKFWMutex_verifyPointer(mutex);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
262 if( CKR_OK != rv ) {
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
263 return rv;
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
264 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
265 #endif /* DEBUG */
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
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parents:
diff changeset
266
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
267 return nssCKFWMutex_Unlock(mutex);
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
268 }
1e5118fa0cb1 This is NSS with a Cmake Buildsyste
Andre Heinecke <andre.heinecke@intevation.de>
parents:
diff changeset
269
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