Skip to content
Snippets Groups Projects
Commit 925de6d3 authored by Pontus Hagland's avatar Pontus Hagland
Browse files

Rewritten.

parent 2daba666
Branches
Tags
No related merge requests found
Show whitespace changes
Inline Side-by-side
Showing
with 75 additions and 190 deletions
src/server/cache.h
+ 75
− 190
View file @ 925de6d3
/* /*
* $Id: cache.h,v 0.11 1993/08/04 23:01:33 ceder Exp $ * $Id: cache.h,v 0.12 1994/02/20 14:14:15 law Exp $
* Copyright (C) 1991 Lysator Academic Computer Association. * Copyright (C) 1991 Lysator Academic Computer Association.
* *
* This file is part of the LysKOM server. * This file is part of the LysKOM server.
...@@ -23,226 +23,111 @@ ...@@ -23,226 +23,111 @@
* Please mail bug reports to bug-lyskom@lysator.liu.se. * Please mail bug reports to bug-lyskom@lysator.liu.se.
*/ */
/* /*
* $Id: cache.h,v 0.11 1993/08/04 23:01:33 ceder Exp $ * database cache header file
*
* This file contains the cached data that the server stores.
* .h file created by ceder 1990-04-18
*/ */
/* cache_sync_all only returns when everything is written to disk. */ struct matching_info *match_table;
extern void /* match_table, see build_matching_info() */
cache_sync_all(void);
/* First, some things which I want here. /ceder */
extern struct matching_info *match_table;
extern void /******** initiation and shutdown of cache *******************************/
cached_lock_conf(Conf_no conf_no);
extern Success Success init_cache(void);
init_cache(void); /* initiate cache (called at initiation/startup of server) */
extern void void free_all_cache(void);
cached_unlock_conf(Conf_no conf); /* flush, shutdown cache and free all cache memory (called at shutdown) */
extern void void cache_emergency_exit(void);
cached_lock_person(Pers_no pers); /* dump emergency files, etc, if possible */
extern void /******** miscellanous cache master routines *****************************/
cached_unlock_person(Pers_no pers);
extern Success void cache_limit_size(void);
cached_delete_person(Pers_no pres); /* end-of-atomic, may clear read entries */
extern Success void cache_sync(void);
cached_delete_text(Text_no text); /* flush all, dont wait for disk */
extern Success Bool sync_part(void);
build_matching_info(void); /* sync timout routine, TRUE=>long timeout before next */
extern void /* Write out everything. */ void cache_sync_all(void);
cache_sync(void); /* flush all & wait until disk is synced */
/* S}d{r ja. Tack f|r mig. /ceder */ void tell_cache_garb_text(int running);
/* tell cache that garb_text is in progress, ie never flush cache */
/* void dump_cache_stats(FILE *stat_file);
* Name caching routines void dump_cache_mem_usage(FILE *stat_file);
*/ /* dump cache statistics etc */
/*
* change_name changes the cached conference name. It is only called when
* a conference name is changed or a conference is deleted.
*
* cached_change_name(foo, EMPTY_STRING); should be used when a conference
* is deleted. (Eller ska det vara annorlunda? S} g|r jag nu... /ceder)
*/
extern void
cached_change_name(Conf_no name_num,
String new_name );
/******** object manipulation routines ***********************************/
extern Bool void mark_person_as_changed(Pers_no pers);
cached_conf_exists( Conf_no conf_no ); void mark_text_as_changed(Text_no text);
void mark_conference_as_changed(Conf_no conf);
/* mark as changed (object is to be re-written to disk) */
/* void cached_lock_conf(Conf_no conf);
* Calls for the cacheing of conf_type: void cached_unlock_conf(Conf_no conf);
* cached_get_conf_type() returns the type. void cached_lock_person(Pers_no pers);
* The type is set when mark_conference_as_changed is called. void cached_unlock_person(Pers_no pers);
*/ /* lock (do never remove object from memory) & unlock */
/* Get conference type */ Success cached_create_person(Pers_no pers);
/* Undefined result if the conf doesn't exist. */ Conf_no cached_create_conf(String name);
Text_no cached_create_text(const String message);
/* create object (returns FALSE if person existed) */
extern Conf_type Person *cached_get_person_stat(Pers_no person);
cached_get_conf_type (Conf_no conf_no); Conference *cached_get_conf_stat(Conf_no conf);
Text_stat *cached_get_text_stat(Text_no text);
/* get object from database */
/* String cached_get_text(Text_no text);
* Return number of conferences present. (Actually, return a number /* return text. String is to be freed by caller */
* at least as large as the number of conferences present).
*/
extern Conf_no
cached_no_of_existing_conferences(void);
/* Success cached_delete_person(Pers_no pers);
* Get garb_nice for a certain conference. Success cached_delete_text(Text_no text);
* It is set when mark_conference_as_changed is called. Success cached_delete_conf(Conf_no conf);
*/ /* remove object from database */
extern Garb_nice
cached_get_garb_nice (Conf_no conf_no);
extern String Pers_no traverse_person(Pers_no sead);
cached_get_name (Conf_no conf_no); Conf_no traverse_conference(Conf_no sead);
Text_no traverse_text(Text_no sead);
/* return number of next existing object */
extern Local_text_no Text_no query_next_text_num(void);
cached_get_highest_local_no (Conf_no conf_no); /* returns highest text_num +1 */
/******** misc conference routines **************************************/
void cached_change_name(Conf_no conf,String new_name);
/* /* change conferance name
* Various function calls to tell the cache that something is changed. cached_change_name(foo,EMPTY_STRING);
*/ is used when a conference is deleted */
void Bool cached_conf_exists(Conf_no conf);
mark_person_as_changed(Pers_no pers_no); /* returns TRUE when a conference exists */
Conf_type cached_get_conf_type(Conf_no conf);
/* returns conference type
conf_type is set when mark_conference_as_changed is called (?) */
void Garb_nice cached_get_garb_nice(Conf_no conf);
mark_conference_as_changed(Conf_no conf_no); /* Get garb_nice from smallconf */
String cached_get_name(Conf_no conf);
/* returns conference name from smallconf */
void Local_text_no cached_get_highest_local_no(Conf_no conf);
mark_text_as_changed(Text_no text_no); /* returns highes text number in a certain conference */
Success cached_lookup_name(const String name,Conf_list_old *result);
/* match from name => conf_list_old */
/******** miscellanous wierd routines ************************************/
Success build_matching_info(void);
/*
* Person-related calls
*/
extern Success
cached_create_person( Pers_no person );
extern Person *
cached_get_person_stat( Pers_no person ); /* Returns NULL if person
doesn't exist */
/*
* Conference-related calls
*/
extern Conf_no
cached_create_conf( String name );
extern Success
cached_delete_conf( Conf_no conf );
extern Success
cached_lookup_name(const String name,
Conf_list_old *result);
extern Conference *
cached_get_conf_stat( Conf_no conf_no );
/*
* Calls to handle texts
*/
extern String
cached_get_text( Text_no text );/* The string should be free'd by the caller */
extern Text_stat *
cached_get_text_stat( Text_no text );
extern Text_no
cached_create_text(const String message);
/*
* traverse_text can be used to cycle through all existing texts. 0 will
* be returned once in the "cycle".
*/
extern Text_no
traverse_text(Text_no seed);
/*
* traverse_person can be used to cycle through all existing persons. 0 will
* be returned once in the "cycle".
*/
extern Pers_no
traverse_person(Pers_no seed);
/*
* traverse_conference can be used to cycle through all existing conferences.
* 0 will be returned once in the "cycle".
*/
extern Conf_no
traverse_conference(Conf_no seed);
/*
* Free all memory used by the cache. This should only be done
* as part of the shutdown sequence. The purpose of this is to
* make it possible to see if there are any memory leaks.
*/
void
free_all_cache(void);
/*
* Limit the number of 'clean' cache entries.
*/
void
cache_limit_size(void);
/*
* Dump cache statistics.
*/
void
dump_cache_stats(FILE *stat_file);
/*
* Dump memory usage.
*/
void
dump_cache_mem_usage(FILE *stat_file);
/*
* Export the highest text_no for searching.
*/
int
query_next_text_num(void);
/*
* Tell the cache that a text garbage collection operation is in progress
* or is finished.
*/
void
tell_cache_garb_text(int running);
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Please register or to comment