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/* WIDE AREA INFORMATION SERVER SOFTWARE
No guarantees or restrictions. See the readme file for the full standard
disclaimer.
*/
#ifndef lint
static char *RCSid = "$Header: /proj/wais/wais-8-b5/ir/RCS/sigsrch.c,v 1.28 92/03/05 07:08:41 shen Exp $";
#endif
/* Change log:
* $Log: sigsrch.c,v $
* Revision 1.28 92/03/05 07:08:41 shen
* update init_search_engine to take two more parameters: grow percent
* and text size. Add these two parameters to call to sig_open_database
*
* Revision 1.27 92/02/12 13:47:27 jonathan
* Added "$Log" so RCS will put the log message in the header
*
*
*/
/* implements the search part of irext.h
(search_word and finished_search_word)
Stub for tracy shen.
*/
#include "cdialect.h"
#include "irfiles.h"
#include "irsearch.h"
#include "irext.h"
#include <string.h>
#include "sigsrch.h"
/* ==================================
* === Initialization Functions ===
* ==================================*/
/* set by init_search_engine when cm_mem_percent is non-zero */
long cm_mem_percent_saved = 0;
long text_size_saved = 0;
long grow_percent_saved = 0;
long init_search_engine(file, initialize, for_search, cm_mem_percent,
text_size, grow_percent)
char* file;
boolean initialize;
boolean for_search;
long cm_mem_percent;
long text_size;
long grow_percent;
{
long for_update;
char full_filename[MAX_FILE_NAME_LEN+1];
char *getenv(), *temps;
waislog(WLOG_MEDIUM, WLOG_INFO, "Starting Seeker-RAM Engine.");
if(cm_mem_percent != 0)
cm_mem_percent_saved = cm_mem_percent;
if(grow_percent != 0)
grow_percent_saved = grow_percent;
if(text_size != 0)
text_size_saved = text_size;
temps = getenv("SEEKER_TEXT_SIZE");
if ( temps )
text_size_saved = atol( temps);
if( for_search )
for_update = 0;
else
for_update = 1;
temps = getenv("SEEKER_NOSECURE_SERVER");
if ( temps )
for_update = 1;
strncpy(full_filename, file, MAX_FILE_NAME_LEN);
strncat(full_filename, "/", MAX_FILE_NAME_LEN);
strncat(full_filename, database_file(file), MAX_FILE_NAME_LEN);
return( sig_init( full_filename, (long)initialize, (long)for_search,
for_update, cm_mem_percent_saved) );
}
long finished_search_engine()
{
waislog(WLOG_MEDIUM, WLOG_INFO, "Shutting down Seeker-RAM Engine.");
return( sig_exit());
}
/*
* ext_open_database: see irext.h
*/
long ext_open_database (db, initialize, for_search)
database *db;
boolean initialize;
boolean for_search;
{
long for_update;
if( for_search )
for_update = 0;
else
for_update = 1;
return( sig_open_database( db, (long)initialize, (long)for_search,
for_update, cm_mem_percent_saved,
text_size_saved, grow_percent_saved));
}
/*
* ext_close_database: see irext.h
*/
long ext_close_database (db)
database *db;
{
return( sig_close_database(db));
}
char *database_file(database_name)
char *database_name;
{
return("INDEX");
}
/*===========================*
*=== Setting Paramters ===*
*===========================*/
long max_hit_retrieved = 0;
char **srcs = NULL;
long set_query_parameter (mask, parameters)
long mask;
query_parameter_type * parameters;
{
switch (mask)
{
case SET_MAX_RETRIEVED_MASK:
max_hit_retrieved = parameters->max_hit_retrieved;
return(0);
break;
case SET_SELECT_SOURCE:
if(NULL != srcs){
if(NULL != srcs[0])
s_free(srcs[0]);
s_free(srcs);
}
srcs = parameters->srcs;
{long count = 0;
if(NULL == srcs)
waislog(WLOG_LOW, WLOG_INFO, "No sources specified in set_query_parameter");
else {
for(count = 0; srcs[count] != NULL; count++){
waislog(WLOG_LOW, WLOG_INFO,
"Setting source to '%s'", srcs[count]);
}
sig_set_query_parameter( mask, parameters);
}
}
break;
default:
return(-1);
break;
}
return(0);
}
/*=============================*
*=== Searching for words ===*
*=============================*/
/* see irext.h for doc */
long init_search_word (db)
database* db;
{
return(sig_init_search_word(db));
}
long search_word(word, char_pos, line_pos, weight, doc_id,
word_pair, db)
char *word; /* the word to be searched for */
long char_pos; /* the position of the start of the word */
long line_pos; /* is this needed? not for signature system */
long weight; /* how important the word looks syntactically,
such as is it bold */
long doc_id; /* current document, seed words is 0,
then it increments into the relevant
document */
long word_pair;
database *db;
{
long number_of_occurances;
long word_id =
look_up_word_in_dictionary(word, &number_of_occurances, db);
return( sig_search_word(word, char_pos, line_pos,
weight, doc_id, number_of_occurances,
ABS(word_id), word_pair));
}
/*===================*
*=== Best Hits ===*
*===================*/
long finished_search_word(db)
database *db;
{
return(sig_finished_search_word(db));
}
/* see irext.h for doc */
long init_best_hit (db)
database *db;
{
return(0);
}
/* returns the next best hit */
long best_hit(db, doc_id, best_character, best_line, score)
database *db;
long *doc_id;
long *best_character;
long *best_line;
long *score;
{
return(sig_best_hit(doc_id, best_character, best_line, score));
}
long finished_best_hit(db)
database *db;
{
return(sig_finished_best_hit());
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.