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annotate src/over.h @ 165:8ea6b5ddc5a5 noffle

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[svn] * src/lock.h,src/lock.c,src/noffle.c: Add lazy lock release. Only release the lock and close the databases if (a) another process signals us SIGUSR1 indicating it wants the lock, or (b) it is explicitly requested by a call to new function Lock_syncDatabases(). When waiting for the lock, SIGUSR1 the holding process every second. This is all an attempt to minimise the number of times we need to close and open the database. When (ha!) the database is replaced by something that can handle multiple simultaneous writers (with appropriate locking) this won't be necessary.
author bears
date Thu, 25 Jan 2001 13:38:31 +0000
parents c874bd3c4bb8
children 3477050e8d10
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1 /*
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2 over.h
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3
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4 Processing of single article overviews. Handling of overview files is in
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5 content.c. An article overview contains important article properties,
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6 such as date, from, subject.
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7
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8 $Id: over.h 79 2000-05-13 15:35:17Z bears $
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9 */
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10
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11 #ifndef OVER_H
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12 #define OVER_H
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13
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14 #if HAVE_CONFIG_H
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15 #include <config.h>
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16 #endif
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17
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18 #if TIME_WITH_SYS_TIME
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19 #include <sys/time.h>
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20 #include <time.h>
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21 #else
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22 #if HAVE_SYS_TIME_H
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23 #include <sys/time.h>
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24 #else
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25 #include <time.h>
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26 #endif
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27 #endif
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29 #include "common.h"
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31 struct Over;
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32 typedef struct Over Over;
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33
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34 /*
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35 Usual fields from overview databases.
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36 Xref without hostname.
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37 */
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38 Over *
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39 new_Over( const char *subj, const char *from, const char *date,
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40 const char *msgId, const char *ref, size_t bytes, size_t lines );
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42
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43 /* free memory */
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44 void
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45 del_Over( Over *self );
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46
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47 /* read Over-struct from line */
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48 Over *
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49 Ov_read( char *line );
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51 /* write struct Over to f as a line */
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52 Bool
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53 Ov_write( const Over *self, FILE *f );
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55 /* Access particular fields in struct over */
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56
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57 int
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58 Ov_numb( const Over *self );
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59
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60 const char *
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61 Ov_subj( const Over *self );
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62
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63 const char *
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64 Ov_from( const Over *self );
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66 const char *
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67 Ov_date( const Over *self );
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68
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69 const char *
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70 Ov_msgId( const Over *self );
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71
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72 const char *
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73 Ov_ref( const Over *self );
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74
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75 size_t
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76 Ov_bytes( const Over *self );
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77
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78 size_t
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79 Ov_lines( const Over *self );
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80
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81 void
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82 Ov_setNumb( Over *self, int numb );
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83
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84 #endif