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annotate src/database.h @ 500:614a3177b15c noffle tip

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author Jim Hague <jim.hague@acm.org>
date Wed, 14 Aug 2013 12:04:39 +0100
parents a04c52f87b6e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 database.h
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3
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4 Article database.
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5
482
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6 $Id: database.h 629 2004-10-13 23:26:48Z bears $
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7 */
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8
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9 #ifndef DB_H
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10 #define DB_H
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11
45
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12 #if HAVE_CONFIG_H
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13 #include <config.h>
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14 #endif
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15
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16 #if TIME_WITH_SYS_TIME
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17 #include <sys/time.h>
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18 #include <time.h>
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19 #else
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20 #if HAVE_SYS_TIME_H
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21 #include <sys/time.h>
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22 #else
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23 #include <time.h>
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24 #endif
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25 #endif
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26
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27 #include "common.h"
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28 #include "dynamicstring.h"
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29 #include "over.h"
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30
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31 /* Article status flags: */
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32 #define DB_INTERESTING 0x01u /* Was article ever tried to read? */
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33 #define DB_NOT_DOWNLOADED 0x02u /* Not fully downloaded */
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34 #define DB_RETRIEVING_FAILED 0x04u /* Retrieving of article failed */
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35
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36 /* Open database for r/w. Locking must be done by the caller! */
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37 Bool
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38 Db_open( void );
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39
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40 void
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41 Db_close( void );
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42
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43 /*
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44 Creates an database entry for the article from the overview
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45 information. Xref is replaced by grp:numb.
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46 */
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47 Bool
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48 Db_prepareEntry( const Over *ov, const char *grp, int numb );
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49
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50 /* Store full article. Can only be used after Db_prepareEntry. */
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51 Bool
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52 Db_storeArt( const char *msgId, const char *artTxt );
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53
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54 void
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55 Db_setStatus( const char *msgId, unsigned status );
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56
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57 void
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58 Db_updateLastAccess( const char *msgId );
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59
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60 /* Xref header line without hostname */
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61 void
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62 Db_setXref( const char *msgId, const char *xref );
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63
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64 const char *
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65 Db_header( const char *msgId );
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66
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67 const char *
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68 Db_body( const char *msgId );
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69
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70 unsigned
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71 Db_status( const char *msgId );
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72
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73 /* Get last modification time of entry. Returns -1, if msgId non-existing. */
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74 time_t
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75 Db_lastAccess( const char *msgId );
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76
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77 /* Value of the References header line */
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78 const char *
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79 Db_ref( const char *msgId );
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80
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81 /* Value of the From header line */
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82 const char *
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83 Db_from( const char *msgId );
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84
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85 /* Value of the Date header line */
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86 const char *
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87 Db_date( const char *msgId );
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88
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89 /* Xref header line without hostname */
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90 const char *
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91 Db_xref( const char *msgId );
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92
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93 /* Overview - need to del_Over result when finished with */
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94 Over *
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95 Db_over( const char *msgId );
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96
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97 Bool
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98 Db_contains( const char *msgId );
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99
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100 /* Delete entry from database */
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101 void
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102 Db_delete( const char *msgId );
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103
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104 Bool
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105 Db_first( const char** msgId );
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106
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107 Bool
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108 Db_next( const char** msgId );
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109
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110 /* Compact database if appropriate - give deleted article space back to OS */
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111 void
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112 Db_compact( void );
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113
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114 /* Rebuild the article database. */
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115 Bool
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116 Db_rebuild( void );
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117
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118 /* Utility function - find the upstream server for a particular message */
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119 Bool
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120 Db_findServer( const char *msgId, Str server );
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121
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122 #endif