/*
- * Copyright (C) 1994-1995, Index Data I/S
+ * Copyright (C) 1994-1996, Index Data I/S
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: kinput.c,v $
- * Revision 1.9 1995-10-10 12:24:39 adam
+ * Revision 1.17 1996-05-14 15:47:07 adam
+ * Cleanup of various buffer size entities.
+ *
+ * Revision 1.16 1996/04/09 10:05:20 adam
+ * Bug fix: prev_name buffer possibly too small; allocated in key_file_init.
+ *
+ * Revision 1.15 1996/03/21 14:50:09 adam
+ * File update uses modify-time instead of change-time.
+ *
+ * Revision 1.14 1996/02/07 14:06:37 adam
+ * Better progress report during register merge.
+ * New command: clean - removes temporary shadow files.
+ *
+ * Revision 1.13 1996/02/05 12:30:00 adam
+ * Logging reduced a bit.
+ * The remaining running time is estimated during register merge.
+ *
+ * Revision 1.12 1995/12/06 17:49:19 adam
+ * Uses dict_delete now.
+ *
+ * Revision 1.11 1995/12/06 16:06:43 adam
+ * Better diagnostics. Work on 'real' dictionary deletion.
+ *
+ * Revision 1.10 1995/12/06 12:41:22 adam
+ * New command 'stat' for the index program.
+ * Filenames can be read from stdin by specifying '-'.
+ * Bug fix/enhancement of the transformation from terms to regular
+ * expressons in the search engine.
+ *
+ * Revision 1.9 1995/10/10 12:24:39 adam
* Temporary sort files are compressed.
*
* Revision 1.8 1995/10/04 16:57:19 adam
#include "index.h"
#define KEY_SIZE (1+sizeof(struct it_key))
-#define INP_NAME_MAX 8192
+#define INP_NAME_MAX 768
#define INP_BUF_START 60000
#define INP_BUF_ADD 400000
static int no_diffs = 0;
static int no_updates = 0;
+static int no_deletions = 0;
static int no_insertions = 0;
static int no_iterations = 0;
char *prev_name; /* last word read */
int sysno; /* last sysno */
int seqno; /* last seqno */
+ off_t length; /* length of file */
+ /* handler invoked in each read */
+ void (*readHandler)(struct key_file *keyp, void *rinfo);
+ void *readInfo;
};
+void getFnameTmp (char *fname, int no)
+{
+ sprintf (fname, TEMP_FNAME, no);
+}
+
void key_file_chunk_read (struct key_file *f)
{
int nr = 0, r, fd;
- char fname[256];
- sprintf (fname, TEMP_FNAME, f->no);
+ char fname[1024];
+ getFnameTmp (fname, f->no);
fd = open (fname, O_RDONLY);
if (fd == -1)
{
logf (LOG_FATAL|LOG_ERRNO, "cannot open %s", fname);
exit (1);
}
- logf (LOG_LOG, "reading chunk from %s", fname);
+ if (!f->length)
+ {
+ if ((f->length = lseek (fd, 0L, SEEK_END)) == (off_t) -1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "cannot seek %s", fname);
+ exit (1);
+ }
+ }
if (lseek (fd, f->offset, SEEK_SET) == -1)
{
logf (LOG_FATAL|LOG_ERRNO, "cannot seek %s", fname);
}
f->buf_size = nr;
f->buf_ptr = 0;
+ if (f->readHandler)
+ (*f->readHandler)(f, f->readInfo);
close (fd);
}
f->no = no;
f->chunk = chunk;
f->offset = 0;
+ f->length = 0;
+ f->readHandler = NULL;
f->buf = xmalloc (f->chunk);
- f->prev_name = xmalloc (256);
+ f->prev_name = xmalloc (INP_NAME_MAX);
*f->prev_name = '\0';
key_file_chunk_read (f);
return f;
for (i = 0; i<= nkeys; i++)
{
hi->ptr[i] = i;
- hi->info.buf[i] = xmalloc (512);
+ hi->info.buf[i] = xmalloc (INP_NAME_MAX);
}
return hi;
}
static int heap_read_one (struct heap_info *hi, char *name, char *key)
{
int n, r;
- char rbuf[512];
+ char rbuf[INP_NAME_MAX];
struct key_file *kf;
if (!hi->heapnum)
int heap_inp (Dict dict, ISAM isam, struct heap_info *hi)
{
char *info;
- char next_name[INP_NAME_MAX+1];
- char cur_name[INP_NAME_MAX+1];
+ char next_name[INP_NAME_MAX];
+ char cur_name[INP_NAME_MAX];
int key_buf_size = INP_BUF_START;
int key_buf_ptr;
char *next_key;
int more;
next_key = xmalloc (KEY_SIZE);
- key_buf = xmalloc (key_buf_size * (KEY_SIZE));
+ key_buf = xmalloc (key_buf_size);
more = heap_read_one (hi, cur_name, key_buf);
while (more) /* EOF ? */
{
{
ISAM_P isam_p, isam_p2;
logf (LOG_DEBUG, "updating %s", cur_name);
- no_updates++;
memcpy (&isam_p, info+1, sizeof(ISAM_P));
isam_p2 = is_merge (isam, isam_p, nmemb, key_buf);
- if (isam_p2 != isam_p)
- dict_insert (dict, cur_name, sizeof(ISAM_P), &isam_p2);
+ if (!isam_p2)
+ {
+ no_deletions++;
+ if (!dict_delete (dict, cur_name))
+ abort ();
+ }
+ else
+ {
+ no_updates++;
+ if (isam_p2 != isam_p)
+ dict_insert (dict, cur_name, sizeof(ISAM_P), &isam_p2);
+ }
}
else
{
return 0;
}
+struct progressInfo {
+ time_t startTime;
+ time_t lastTime;
+ off_t totalBytes;
+ off_t totalOffset;
+};
+
+void progressFunc (struct key_file *keyp, void *info)
+{
+ struct progressInfo *p = info;
+ time_t now, remaining;
+
+ if (keyp->buf_size <= 0 || p->totalBytes <= 0)
+ return ;
+ time (&now);
+
+ if (now >= p->lastTime+10)
+ {
+ p->lastTime = now;
+ remaining = (now - p->startTime)*
+ ((double) p->totalBytes/p->totalOffset - 1.0);
+ if (remaining <= 130)
+ logf (LOG_LOG, "Merge %2.1f%% completed; %ld seconds remaining",
+ (100.0*p->totalOffset) / p->totalBytes, (long) remaining);
+ else
+ logf (LOG_LOG, "Merge %2.1f%% completed; %ld minutes remaining",
+ (100.0*p->totalOffset) / p->totalBytes, (long) remaining/60);
+ }
+ p->totalOffset += keyp->buf_size;
+}
+
void key_input (const char *dict_fname, const char *isam_fname,
- int nkeys, int cache)
+ int nkeys, int cache)
+
{
Dict dict;
ISAM isam;
char rbuf[1024];
int i, r;
struct heap_info *hi;
+ struct progressInfo progressInfo;
+ if (nkeys < 0)
+ {
+ char fname[1024];
+ nkeys = 0;
+ while (1)
+ {
+ getFnameTmp (fname, nkeys+1);
+ if (access (fname, R_OK) == -1)
+ break;
+ nkeys++;
+ }
+ if (!nkeys)
+ return ;
+ }
dict = dict_open (dict_fname, cache, 1);
if (!dict)
{
}
kf = xmalloc ((1+nkeys) * sizeof(*kf));
+ progressInfo.totalBytes = 0;
+ progressInfo.totalOffset = 0;
+ time (&progressInfo.startTime);
+ time (&progressInfo.lastTime);
for (i = 1; i<=nkeys; i++)
+ {
kf[i] = key_file_init (i, 32768);
-
+ kf[i]->readHandler = progressFunc;
+ kf[i]->readInfo = &progressInfo;
+ progressInfo.totalBytes += kf[i]->length;
+ progressInfo.totalOffset += kf[i]->buf_size;
+ }
hi = key_heap_init (nkeys, key_qsort_compare);
for (i = 1; i<=nkeys; i++)
if ((r = key_file_read (kf[i], rbuf)))
dict_close (dict);
is_close (isam);
-
+
+ for (i = 1; i<=nkeys; i++)
+ {
+ getFnameTmp (rbuf, i);
+ unlink (rbuf);
+ }
logf (LOG_LOG, "Iterations . . .%7d", no_iterations);
logf (LOG_LOG, "Distinct words .%7d", no_diffs);
logf (LOG_LOG, "Updates. . . . .%7d", no_updates);
+ logf (LOG_LOG, "Deletions. . . .%7d", no_deletions);
logf (LOG_LOG, "Insertions . . .%7d", no_insertions);
}
projects / idzebra-moved-to-github.git / blobdiff