1 | //----------------------------------------------------------- |
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2 | // Copyright Christian Arnault LAL-Orsay CNRS |
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3 | // arnault@lal.in2p3.fr |
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4 | // See the complete license in cmt_license.txt "http://www.cecill.info". |
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5 | //----------------------------------------------------------- |
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6 | |
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7 | #include "cmt_std.h" |
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8 | #include "cmt_lock.h" |
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9 | #include "cmt_system.h" |
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10 | #include "cmt_error.h" |
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11 | #include "cmt_symbol.h" |
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12 | |
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13 | //---------------------------------------------------------- |
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14 | CmtLock::status CmtLock::lock () |
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15 | { |
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16 | // status s = check (); |
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17 | |
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18 | // switch (s) |
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19 | // { |
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20 | // case locked_by_user: |
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21 | // cerr << "Package already locked by you" << endl; |
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22 | // return (s); |
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23 | // case locked_by_another_user: |
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24 | // CmtError::set (CmtError::cannot_lock, "lock> Package already locked by another user"); |
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25 | // return (s); |
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26 | // case not_locked: |
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27 | // break; |
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28 | // } |
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29 | |
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30 | // cmt_string text = "locked by "; |
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31 | // text += CmtSystem::user (); |
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32 | // text += " date "; |
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33 | // text += CmtSystem::now (); |
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34 | |
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35 | // if (!text.write ("lock.cmt")) |
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36 | // { |
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37 | // CmtError::set (CmtError::cannot_write_lock, "lock>"); |
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38 | // return (still_unlocked); |
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39 | // } |
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40 | |
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41 | // cmt_string command = lock_command->build_macro_value (); |
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42 | |
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43 | cmt_string lock_command; |
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44 | Symbol* lock_command_macro = Symbol::find ("lock_command"); |
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45 | if (lock_command_macro != 0) |
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46 | { |
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47 | lock_command = lock_command_macro->resolve_macro_value (); |
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48 | } |
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49 | if (lock_command == "") |
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50 | { |
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51 | CmtError::set (CmtError::cannot_write_lock, "lock>"); |
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52 | return (still_unlocked); |
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53 | } |
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54 | |
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55 | cmt_string lock_file; |
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56 | Symbol* lock_file_macro = Symbol::find ("lock_file"); |
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57 | if (lock_file_macro != 0) |
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58 | { |
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59 | lock_file = lock_file_macro->resolve_macro_value (); |
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60 | } |
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61 | if (lock_file == "") |
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62 | { |
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63 | CmtError::set (CmtError::cannot_write_lock, "lock>"); |
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64 | return (still_unlocked); |
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65 | } |
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66 | |
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67 | cmt_string command = lock_command + " " + lock_file; |
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68 | |
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69 | if (CmtSystem::execute (command) != 0) |
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70 | { |
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71 | CmtError::set (CmtError::cannot_run_lock_command, "lock>"); |
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72 | return (still_unlocked); |
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73 | } |
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74 | |
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75 | cerr << "Package now locked" << endl; |
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76 | |
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77 | return (locked_by_user); |
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78 | } |
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79 | |
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80 | //---------------------------------------------------------- |
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81 | CmtLock::status CmtLock::unlock () |
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82 | { |
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83 | status s = check (); |
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84 | |
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85 | switch (s) |
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86 | { |
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87 | case locked_by_user: |
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88 | break; |
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89 | case locked_by_another_user: |
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90 | CmtError::set (CmtError::cannot_unlock, "unlock> Package locked by another user"); |
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91 | return (s); |
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92 | case not_locked: |
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93 | cerr << "Package not locked" << endl; |
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94 | return (s); |
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95 | } |
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96 | |
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97 | // Symbol* unlock_command = Symbol::find ("unlock_command"); |
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98 | // if (unlock_command != 0) |
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99 | // { |
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100 | // cmt_string command = unlock_command->build_macro_value (); |
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101 | |
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102 | // if (command != "") |
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103 | // { |
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104 | // if (CmtSystem::execute (command) != 0) |
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105 | // { |
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106 | // CmtError::set (CmtError::cannot_run_unlock_command, "unlock>"); |
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107 | // return (still_locked); |
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108 | // } |
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109 | // } |
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110 | // } |
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111 | |
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112 | // if (!CmtSystem::remove_file ("lock.cmt")) |
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113 | // { |
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114 | // CmtError::set (CmtError::cannot_remove_lock, "unlock>"); |
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115 | // return (still_locked); |
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116 | // } |
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117 | |
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118 | cmt_string unlock_command; |
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119 | Symbol* unlock_command_macro = Symbol::find ("unlock_command"); |
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120 | if (unlock_command_macro != 0) |
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121 | { |
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122 | unlock_command = unlock_command_macro->resolve_macro_value (); |
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123 | } |
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124 | if (unlock_command == "") |
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125 | { |
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126 | CmtError::set (CmtError::cannot_remove_lock, "unlock>"); |
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127 | return (still_locked); |
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128 | } |
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129 | |
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130 | cmt_string lock_file; |
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131 | Symbol* lock_file_macro = Symbol::find ("lock_file"); |
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132 | if (lock_file_macro != 0) |
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133 | { |
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134 | lock_file = lock_file_macro->resolve_macro_value (); |
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135 | } |
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136 | if (lock_file == "") |
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137 | { |
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138 | CmtError::set (CmtError::cannot_remove_lock, "unlock>"); |
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139 | return (still_locked); |
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140 | } |
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141 | |
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142 | cmt_string command = unlock_command + " " + lock_file; |
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143 | |
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144 | if (CmtSystem::execute (command) != 0) |
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145 | { |
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146 | CmtError::set (CmtError::cannot_run_unlock_command, "unlock>"); |
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147 | return (still_locked); |
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148 | } |
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149 | |
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150 | cerr << "Package now unlocked" << endl; |
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151 | |
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152 | return (not_locked); |
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153 | } |
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154 | |
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155 | //---------------------------------------------------------- |
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156 | CmtLock::status CmtLock::check () |
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157 | { |
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158 | // cmt_string me = CmtSystem::user (); |
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159 | // cmt_string text; |
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160 | |
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161 | // if (text.read ("lock.cmt")) |
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162 | // { |
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163 | // CmtSystem::cmt_string_vector words; |
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164 | |
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165 | // CmtSystem::split (text, " ", words); |
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166 | |
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167 | // if (words.size () >= 3) |
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168 | // { |
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169 | // if (words[2] == me) |
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170 | // { |
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171 | // return (locked_by_user); |
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172 | // } |
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173 | // else |
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174 | // { |
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175 | // return (locked_by_another_user); |
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176 | // } |
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177 | // } |
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178 | // } |
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179 | cmt_string lock_file; |
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180 | Symbol* lock_file_macro = Symbol::find ("lock_file"); |
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181 | if (lock_file_macro != 0) |
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182 | { |
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183 | lock_file = lock_file_macro->resolve_macro_value (); |
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184 | } |
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185 | |
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186 | if (CmtSystem::test_file (lock_file) || CmtSystem::test_directory (lock_file)) |
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187 | { |
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188 | return (locked_by_user); |
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189 | } |
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190 | |
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191 | return (not_locked); |
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192 | } |
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