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 | cout << "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 | Symbol* lock_command = Symbol::find ("lock_command"); |
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42 | if (lock_command != 0) |
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43 | { |
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44 | cmt_string command = lock_command->build_macro_value (); |
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45 | |
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46 | if (command != "") |
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47 | { |
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48 | if (CmtSystem::execute (command) != 0) |
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49 | { |
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50 | CmtError::set (CmtError::cannot_run_lock_command, "lock>"); |
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51 | return (still_unlocked); |
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52 | } |
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53 | } |
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54 | } |
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55 | |
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56 | cout << "Package now locked" << endl; |
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57 | |
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58 | return (locked_by_user); |
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59 | } |
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60 | |
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61 | //---------------------------------------------------------- |
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62 | CmtLock::status CmtLock::unlock () |
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63 | { |
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64 | status s = check (); |
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65 | |
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66 | switch (s) |
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67 | { |
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68 | case locked_by_user: |
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69 | break; |
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70 | case locked_by_another_user: |
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71 | CmtError::set (CmtError::cannot_unlock, "unlock> Package locked by another user"); |
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72 | return (s); |
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73 | case not_locked: |
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74 | cout << "The package was not locked" << endl; |
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75 | return (s); |
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76 | } |
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77 | |
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78 | Symbol* unlock_command = Symbol::find ("unlock_command"); |
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79 | if (unlock_command != 0) |
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80 | { |
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81 | cmt_string command = unlock_command->build_macro_value (); |
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82 | |
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83 | if (command != "") |
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84 | { |
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85 | if (CmtSystem::execute (command) != 0) |
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86 | { |
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87 | CmtError::set (CmtError::cannot_run_unlock_command, "unlock>"); |
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88 | return (still_locked); |
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89 | } |
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90 | } |
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91 | } |
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92 | |
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93 | if (!CmtSystem::remove_file ("lock.cmt")) |
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94 | { |
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95 | CmtError::set (CmtError::cannot_remove_lock, "unlock>"); |
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96 | return (still_locked); |
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97 | } |
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98 | |
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99 | cout << "Package now unlocked" << endl; |
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100 | |
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101 | return (not_locked); |
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102 | } |
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103 | |
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104 | //---------------------------------------------------------- |
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105 | CmtLock::status CmtLock::check () |
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106 | { |
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107 | cmt_string me = CmtSystem::user (); |
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108 | cmt_string text; |
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109 | |
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110 | if (text.read ("lock.cmt")) |
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111 | { |
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112 | CmtSystem::cmt_string_vector words; |
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113 | |
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114 | CmtSystem::split (text, " ", words); |
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115 | |
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116 | if (words.size () >= 3) |
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117 | { |
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118 | if (words[2] == me) |
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119 | { |
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120 | return (locked_by_user); |
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121 | } |
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122 | else |
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123 | { |
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124 | return (locked_by_another_user); |
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125 | } |
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126 | } |
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127 | } |
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128 | |
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129 | return (not_locked); |
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130 | } |
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