1 /* $Id: kinput.c,v 1.74 2006-05-10 08:13:22 adam Exp $
2 Copyright (C) 1995-2005
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
37 #define KEY_SIZE (1+sizeof(struct it_key))
38 #define INP_NAME_MAX 768
39 #define INP_BUF_START 60000
40 #define INP_BUF_ADD 400000
44 off_t offset; /* file offset */
45 unsigned char *buf; /* buffer block */
46 size_t buf_size; /* number of read bytes in block */
47 size_t chunk; /* number of bytes allocated */
48 size_t buf_ptr; /* current position in buffer */
49 char *prev_name; /* last word read */
51 off_t length; /* length of file */
52 /* handler invoked in each read */
53 void (*readHandler)(struct key_file *keyp, void *rinfo);
59 static void pkey(const char *b, int mode)
61 key_logdump_txt(YLOG_LOG, b, mode ? "i" : "d");
66 void getFnameTmp (Res res, char *fname, int no)
70 pre = res_get_def (res, "keyTmpDir", ".");
71 sprintf (fname, "%s/key%d.tmp", pre, no);
74 void extract_get_fname_tmp (ZebraHandle zh, char *fname, int no)
78 pre = res_get_def (zh->res, "keyTmpDir", ".");
79 sprintf (fname, "%s/key%d.tmp", pre, no);
82 void key_file_chunk_read (struct key_file *f)
84 int nr = 0, r = 0, fd;
86 getFnameTmp (f->res, fname, f->no);
87 fd = open (fname, O_BINARY|O_RDONLY);
93 yaz_log (YLOG_WARN|YLOG_ERRNO, "cannot open %s", fname);
98 if ((f->length = lseek (fd, 0L, SEEK_END)) == (off_t) -1)
100 yaz_log (YLOG_WARN|YLOG_ERRNO, "cannot seek %s", fname);
105 if (lseek (fd, f->offset, SEEK_SET) == -1)
107 yaz_log (YLOG_WARN|YLOG_ERRNO, "cannot seek %s", fname);
111 while (f->chunk - nr > 0)
113 r = read (fd, f->buf + nr, f->chunk - nr);
120 yaz_log (YLOG_WARN|YLOG_ERRNO, "read of %s", fname);
126 (*f->readHandler)(f, f->readInfo);
130 void key_file_destroy (struct key_file *f)
132 iscz1_stop(f->decode_handle);
134 xfree (f->prev_name);
138 struct key_file *key_file_init (int no, int chunk, Res res)
142 f = (struct key_file *) xmalloc (sizeof(*f));
144 f->decode_handle = iscz1_start();
149 f->readHandler = NULL;
150 f->buf = (unsigned char *) xmalloc (f->chunk);
151 f->prev_name = (char *) xmalloc (INP_NAME_MAX);
152 *f->prev_name = '\0';
153 key_file_chunk_read (f);
157 int key_file_getc (struct key_file *f)
159 if (f->buf_ptr < f->buf_size)
160 return f->buf[(f->buf_ptr)++];
161 if (f->buf_size < f->chunk)
163 f->offset += f->buf_size;
164 key_file_chunk_read (f);
165 if (f->buf_ptr < f->buf_size)
166 return f->buf[(f->buf_ptr)++];
171 int key_file_decode (struct key_file *f)
175 c = key_file_getc (f);
182 d = ((c&63) << 8) + (key_file_getc (f) & 0xff);
185 d = ((c&63) << 8) + (key_file_getc (f) & 0xff);
186 d = (d << 8) + (key_file_getc (f) & 0xff);
189 d = ((c&63) << 8) + (key_file_getc (f) & 0xff);
190 d = (d << 8) + (key_file_getc (f) & 0xff);
191 d = (d << 8) + (key_file_getc (f) & 0xff);
197 int key_file_read (struct key_file *f, char *key)
201 const char *src = srcbuf;
205 c = key_file_getc (f);
208 strcpy (key, f->prev_name);
217 while ((key[i++] = key_file_getc (f)))
219 strcpy (f->prev_name, key);
220 iscz1_reset(f->decode_handle);
222 c = key_file_getc(f); /* length + insert/delete combined */
225 for (j = 0; j < c; j++)
226 srcbuf[j] = key_file_getc(f);
228 iscz1_decode(f->decode_handle, &dst, &src);
235 memcpy(&k, key+i, sizeof(k));
237 yaz_log(YLOG_LOG, "00 KEY");
240 return i + sizeof(struct it_key);
245 struct key_file **file;
250 int (*cmp)(const void *p1, const void *p2);
251 struct zebra_register *reg;
253 int raw_reading; /* 1=raw /mem read. 0=file reading */
261 static struct heap_info *key_heap_malloc()
262 { /* malloc and clear it */
263 struct heap_info *hi;
264 hi = (struct heap_info *) xmalloc (sizeof(*hi));
273 hi->no_deletions = 0;
274 hi->no_insertions = 0;
275 hi->no_iterations = 0;
279 struct heap_info *key_heap_init_file(ZebraHandle zh,
281 int (*cmp)(const void *p1, const void *p2))
283 struct heap_info *hi;
286 hi = key_heap_malloc();
288 hi->info.file = (struct key_file **)
289 xmalloc (sizeof(*hi->info.file) * (1+nkeys));
290 hi->info.buf = (char **) xmalloc (sizeof(*hi->info.buf) * (1+nkeys));
291 hi->ptr = (int *) xmalloc (sizeof(*hi->ptr) * (1+nkeys));
293 for (i = 0; i<= nkeys; i++)
296 hi->info.buf[i] = (char *) xmalloc (INP_NAME_MAX);
301 struct heap_info *key_heap_init_raw(ZebraHandle zh,
302 int (*cmp)(const void *p1, const void *p2))
304 struct heap_info *hi=key_heap_malloc();
311 void key_heap_destroy (struct heap_info *hi, int nkeys)
314 if (!hi->raw_reading)
315 for (i = 0; i<=nkeys; i++)
316 xfree (hi->info.buf[i]);
318 xfree (hi->info.buf);
320 xfree (hi->info.file);
324 static void key_heap_swap (struct heap_info *hi, int i1, int i2)
329 hi->ptr[i1] = hi->ptr[i2];
334 static void key_heap_delete (struct heap_info *hi)
336 int cur = 1, child = 2;
338 assert (hi->heapnum > 0);
340 key_heap_swap (hi, 1, hi->heapnum);
342 while (child <= hi->heapnum) {
343 if (child < hi->heapnum &&
344 (*hi->cmp)(&hi->info.buf[hi->ptr[child]],
345 &hi->info.buf[hi->ptr[child+1]]) > 0)
347 if ((*hi->cmp)(&hi->info.buf[hi->ptr[cur]],
348 &hi->info.buf[hi->ptr[child]]) > 0)
350 key_heap_swap (hi, cur, child);
359 static void key_heap_insert (struct heap_info *hi, const char *buf, int nbytes,
364 cur = ++(hi->heapnum);
365 memcpy (hi->info.buf[hi->ptr[cur]], buf, nbytes);
366 hi->info.file[hi->ptr[cur]] = kf;
369 while (parent && (*hi->cmp)(&hi->info.buf[hi->ptr[parent]],
370 &hi->info.buf[hi->ptr[cur]]) > 0)
372 key_heap_swap (hi, cur, parent);
378 static int heap_read_one_raw(struct heap_info *hi, char *name, char *key)
380 ZebraHandle zh = hi->zh;
381 size_t ptr_i = zh->reg->ptr_i;
386 cp=(zh->reg->key_buf)[zh->reg->ptr_top - ptr_i];
388 memcpy(key, cp+strlen(name)+1, KEY_SIZE);
393 static int heap_read_one (struct heap_info *hi, char *name, char *key)
396 char rbuf[INP_NAME_MAX];
400 return heap_read_one_raw(hi, name, key);
405 strcpy (name, hi->info.buf[n]);
406 kf = hi->info.file[n];
408 memcpy (key, hi->info.buf[n] + r+1, KEY_SIZE);
409 key_heap_delete (hi);
410 if ((r = key_file_read (kf, rbuf)))
411 key_heap_insert (hi, rbuf, r, kf);
420 /* for debugging only */
421 static void print_dict_item(ZebraHandle zh, const char *s)
423 char dst[IT_MAX_WORD+1];
425 int len = key_SU_decode(&ord, (const unsigned char *) s);
430 yaz_log(YLOG_LOG, "ord=%d", ord);
433 zebraExplain_lookup_ord (zh->reg->zei,
434 ord, &index_type, &db, 0, 0, 0);
436 zebra_term_untrans(zh, index_type, dst, s + len);
438 yaz_log(YLOG_LOG, "ord=%d term=%s", ord, dst);
443 struct heap_cread_info {
444 char prev_name[INP_NAME_MAX];
445 char cur_name[INP_NAME_MAX];
450 struct heap_info *hi;
457 static int heap_cread_item (void *vp, char **dst, int *insertMode);
459 int heap_cread_item2(void *vp, char **dst, int *insertMode)
461 struct heap_cread_info *p = (struct heap_cread_info *) vp;
466 if (p->look_level > 0)
476 memcpy (*dst, p->key_1, p->sz_1);
478 yaz_log(YLOG_LOG, "DUP level=%d", p->look_level);
479 pkey(*dst, *insertMode);
484 if (p->ret == 0) /* lookahead was 0?. Return that in read next round */
489 else if (p->ret == -1) /* Must read new item ? */
491 char *dst_1 = p->key_1;
492 p->ret = heap_cread_item(vp, &dst_1, &p->mode_1);
493 p->sz_1 = dst_1 - p->key_1;
496 { /* lookahead in 2 . Now in 1. */
498 p->mode_1 = p->mode_2;
499 memcpy (p->key_1, p->key_2, p->sz_2);
502 level = 1; /* insert */
504 level = -1; /* delete */
507 char *dst_2 = p->key_2;
508 p->ret = heap_cread_item(vp, &dst_2, &p->mode_2);
516 p->sz_2 = dst_2 - p->key_2;
518 if (key_compare(p->key_1, p->key_2) == 0)
520 if (p->mode_2) /* adjust level according to deletes/inserts */
529 /* all the same. new round .. */
531 p->mode_1 = p->mode_2;
532 memcpy (p->key_1, p->key_2, p->sz_1);
534 level = 1; /* insert */
536 level = -1; /* delete */
539 /* outcome is insert (1) or delete (0) depending on final level */
550 p->look_level = level;
551 memcpy (*dst, p->key_1, p->sz_1);
553 pkey(*dst, *insertMode);
559 int heap_cread_item (void *vp, char **dst, int *insertMode)
561 struct heap_cread_info *p = (struct heap_cread_info *) vp;
562 struct heap_info *hi = p->hi;
564 if (p->first_in_list)
566 *insertMode = p->key[0];
567 memcpy (*dst, p->key+1, sizeof(struct it_key));
569 pkey(*dst, *insertMode);
571 (*dst) += sizeof(struct it_key);
572 p->first_in_list = 0;
575 strcpy (p->prev_name, p->cur_name);
576 if (!(p->more = heap_read_one (hi, p->cur_name, p->key)))
578 if (*p->cur_name && strcmp (p->cur_name, p->prev_name))
580 p->first_in_list = 1;
583 *insertMode = p->key[0];
584 memcpy (*dst, p->key+1, sizeof(struct it_key));
586 pkey(*dst, *insertMode);
588 (*dst) += sizeof(struct it_key);
592 int heap_inpc (struct heap_cread_info *hci, struct heap_info *hi)
594 ISAMC_I *isamc_i = (ISAMC_I *) xmalloc (sizeof(*isamc_i));
596 isamc_i->clientData = hci;
597 isamc_i->read_item = heap_cread_item2;
601 char this_name[INP_NAME_MAX];
602 ISAM_P isamc_p, isamc_p2;
605 strcpy (this_name, hci->cur_name);
606 assert (hci->cur_name[1]);
608 if ((dict_info = dict_lookup (hi->reg->dict, hci->cur_name)))
610 memcpy (&isamc_p, dict_info+1, sizeof(ISAM_P));
612 isamc_merge (hi->reg->isamc, &isamc_p2, isamc_i);
616 if (!dict_delete (hi->reg->dict, this_name))
622 if (isamc_p2 != isamc_p)
623 dict_insert (hi->reg->dict, this_name,
624 sizeof(ISAM_P), &isamc_p2);
630 isamc_merge (hi->reg->isamc, &isamc_p, isamc_i);
633 dict_insert (hi->reg->dict, this_name,
634 sizeof(ISAM_P), &isamc_p);
641 int heap_inp0(struct heap_cread_info *hci, struct heap_info *hi)
645 char this_name[INP_NAME_MAX];
650 strcpy (this_name, hci->cur_name);
651 assert (hci->cur_name[1]);
654 while (heap_cread_item2(hci, &dst, &mode))
661 int heap_inpb(struct heap_cread_info *hci, struct heap_info *hi)
663 ISAMC_I *isamc_i = (ISAMC_I *) xmalloc (sizeof(*isamc_i));
665 isamc_i->clientData = hci;
666 isamc_i->read_item = heap_cread_item2;
670 char this_name[INP_NAME_MAX];
671 ISAM_P isamc_p, isamc_p2;
674 strcpy (this_name, hci->cur_name);
675 assert (hci->cur_name[1]);
680 print_dict_item(hi->zh, hci->cur_name);
682 if ((dict_info = dict_lookup (hi->reg->dict, hci->cur_name)))
684 memcpy (&isamc_p, dict_info+1, sizeof(ISAM_P));
686 isamb_merge (hi->reg->isamb, &isamc_p2, isamc_i);
690 if (!dict_delete (hi->reg->dict, this_name))
696 if (isamc_p2 != isamc_p)
697 dict_insert (hi->reg->dict, this_name,
698 sizeof(ISAM_P), &isamc_p2);
704 isamb_merge (hi->reg->isamb, &isamc_p, isamc_i);
707 dict_insert (hi->reg->dict, this_name,
708 sizeof(ISAM_P), &isamc_p);
715 int heap_inps (struct heap_cread_info *hci, struct heap_info *hi)
717 ISAMS_I isams_i = (ISAMS_I) xmalloc (sizeof(*isams_i));
719 isams_i->clientData = hci;
720 isams_i->read_item = heap_cread_item;
724 char this_name[INP_NAME_MAX];
728 strcpy (this_name, hci->cur_name);
729 assert (hci->cur_name[1]);
731 if (!(dict_info = dict_lookup (hi->reg->dict, hci->cur_name)))
733 isams_p = isams_merge (hi->reg->isams, isams_i);
735 dict_insert (hi->reg->dict, this_name, sizeof(ISAM_P), &isams_p);
739 yaz_log (YLOG_FATAL, "isams doesn't support this kind of update");
747 struct progressInfo {
754 void progressFunc (struct key_file *keyp, void *info)
756 struct progressInfo *p = (struct progressInfo *) info;
757 time_t now, remaining;
759 if (keyp->buf_size <= 0 || p->totalBytes <= 0)
763 if (now >= p->lastTime+10)
766 remaining = (time_t) ((now - p->startTime)*
767 ((double) p->totalBytes/p->totalOffset - 1.0));
768 if (remaining <= 130)
769 yaz_log (YLOG_LOG, "Merge %2.1f%% completed; %ld seconds remaining",
770 (100.0*p->totalOffset) / p->totalBytes, (long) remaining);
772 yaz_log (YLOG_LOG, "Merge %2.1f%% completed; %ld minutes remaining",
773 (100.0*p->totalOffset) / p->totalBytes, (long) remaining/60);
775 p->totalOffset += keyp->buf_size;
782 void zebra_index_merge (ZebraHandle zh)
784 struct key_file **kf = 0;
787 struct heap_info *hi;
788 struct progressInfo progressInfo;
789 int nkeys = zh->reg->key_file_no;
791 yaz_log (YLOG_DEBUG, " index_merge called with nk=%d b=%p",
792 nkeys, zh->reg->key_buf);
793 if ( (nkeys==0) && (zh->reg->key_buf==0) )
794 return; /* nothing to merge - probably flush after end-trans */
796 usefile = (nkeys!=0);
806 extract_get_fname_tmp (zh, fname, nkeys+1);
807 if (access (fname, R_OK) == -1)
814 kf = (struct key_file **) xmalloc ((1+nkeys) * sizeof(*kf));
815 progressInfo.totalBytes = 0;
816 progressInfo.totalOffset = 0;
817 time (&progressInfo.startTime);
818 time (&progressInfo.lastTime);
819 for (i = 1; i<=nkeys; i++)
821 kf[i] = key_file_init (i, 8192, zh->res);
822 kf[i]->readHandler = progressFunc;
823 kf[i]->readInfo = &progressInfo;
824 progressInfo.totalBytes += kf[i]->length;
825 progressInfo.totalOffset += kf[i]->buf_size;
827 hi = key_heap_init_file(zh, nkeys, key_qsort_compare);
830 for (i = 1; i<=nkeys; i++)
831 if ((r = key_file_read (kf[i], rbuf)))
832 key_heap_insert (hi, rbuf, r, kf[i]);
835 { /* do not use file, read straight from buffer */
836 hi = key_heap_init_raw(zh, key_qsort_compare);
842 struct heap_cread_info hci;
844 hci.key = (char *) xmalloc (KEY_SIZE);
845 hci.key_1 = (char *) xmalloc (KEY_SIZE);
846 hci.key_2 = (char *) xmalloc (KEY_SIZE);
848 hci.first_in_list = 1;
851 hci.more = heap_read_one (hi, hci.cur_name, hci.key);
867 for (i = 1; i<=nkeys; i++)
869 extract_get_fname_tmp (zh, rbuf, i);
872 for (i = 1; i<=nkeys; i++)
873 key_file_destroy (kf[i]);
876 if (hi->no_iterations)
877 { /* do not log if nothing happened */
878 yaz_log (YLOG_LOG, "Iterations . . .%7d", hi->no_iterations);
879 yaz_log (YLOG_LOG, "Distinct words .%7d", hi->no_diffs);
880 yaz_log (YLOG_LOG, "Updates. . . . .%7d", hi->no_updates);
881 yaz_log (YLOG_LOG, "Deletions. . . .%7d", hi->no_deletions);
882 yaz_log (YLOG_LOG, "Insertions . . .%7d", hi->no_insertions);
884 zh->reg->key_file_no = 0;
886 key_heap_destroy (hi, nkeys);
891 * indent-tabs-mode: nil
893 * vim: shiftwidth=4 tabstop=8 expandtab