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code |
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1
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package Log::Unrotate::Cursor; |
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2
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{ |
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3
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$Log::Unrotate::Cursor::VERSION = '1.32'; |
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4
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} |
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5
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6
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2
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2
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15
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use strict; |
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2
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4
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2
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73
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7
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2
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2
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9
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use warnings; |
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2
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4
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2
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3951
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8
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9
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=head1 NAME |
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10
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11
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Log::Unrotate::Cursor - abstract class for unrotate cursors |
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12
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13
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=head1 VERSION |
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15
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version 1.32 |
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=head1 DECRIPTION |
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18
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19
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C keeps its position in persistent objects called cursors. |
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20
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21
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See C for the default cursor implementation. |
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22
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23
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=head1 METHODS |
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24
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25
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=over |
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26
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27
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=item B |
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28
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29
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Get the hashref with a position data. |
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30
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31
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Data usually includes I, I, I and I keys. |
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32
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33
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=cut |
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34
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sub read($) { |
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35
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0
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0
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1
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die 'not implemented'; |
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36
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} |
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37
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38
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=item B |
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39
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40
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Save a new position into the cursor. |
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41
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42
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=cut |
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43
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sub commit($$) { |
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44
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0
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0
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1
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die 'not implemented'; |
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45
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} |
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46
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47
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=item B |
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48
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49
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Clean all data from the cursor. |
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50
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51
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=cut |
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52
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sub clean($) { |
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53
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0
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0
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1
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die 'not implemented'; |
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54
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} |
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55
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56
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=item B |
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57
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58
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Rollback the cursor to some previous value. |
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59
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60
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Returns 1 on success, 0 on fail. |
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61
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62
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=cut |
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63
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64
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sub rollback($) { |
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65
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0
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0
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1
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return 0; |
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66
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} |
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67
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68
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=back |
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69
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70
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=cut |
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71
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72
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1; |