+/*
+ * Copyright (C) 1995, Index Data I/S
+ * All rights reserved.
+ * Sebastian Hammer, Adam Dickmeiss
+ *
+ * $Log: kinput.c,v $
+ * Revision 1.1 1995-09-04 09:10:37 adam
+ * More work on index add/del/update.
+ * Merge sort implemented.
+ * Initial work on z39 server.
+ *
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <assert.h>
+
+#include "index.h"
+
+#define KEY_SIZE (1+sizeof(struct it_key))
+#define INP_NAME_MAX 8192
+#define INP_BUF_START 60000
+#define INP_BUF_ADD 400000
+
+static int no_diffs = 0;
+static int no_updates = 0;
+static int no_insertions = 0;
+static int no_iterations = 0;
+
+static int read_one (FILE *inf, char *name, char *key)
+{
+ int c;
+ int i = 0;
+ name[0] = 0;
+ do
+ {
+ if ((c=getc(inf)) == EOF)
+ return 0;
+ name[i++] = c;
+ } while (c);
+ for (i = 0; i<KEY_SIZE; i++)
+ ((char *)key)[i] = getc (inf);
+ ++no_iterations;
+ return 1;
+}
+
+static int inp (Dict dict, ISAM isam, const char *name)
+{
+ FILE *inf;
+ char *info;
+ char next_name[INP_NAME_MAX+1];
+ char cur_name[INP_NAME_MAX+1];
+ int key_buf_size = INP_BUF_START;
+ int key_buf_ptr;
+ char *next_key;
+ char *key_buf;
+
+ next_key = xmalloc (KEY_SIZE);
+ key_buf = xmalloc (key_buf_size * (KEY_SIZE));
+ if (!(inf = fopen (name, "r")))
+ {
+ log (LOG_FATAL|LOG_ERRNO, "cannot open `%s'", name);
+ exit (1);
+ }
+ read_one (inf, cur_name, key_buf);
+ while (cur_name[0]) /* EOF ? */
+ {
+ int nmemb;
+ key_buf_ptr = KEY_SIZE;
+ while (1)
+ {
+ if (!read_one (inf, next_name, next_key))
+ break;
+ if (strcmp (next_name, cur_name))
+ break;
+ memcpy (key_buf + key_buf_ptr, next_key, KEY_SIZE);
+ key_buf_ptr += KEY_SIZE;
+ if (key_buf_ptr+KEY_SIZE >= key_buf_size)
+ {
+ char *new_key_buf;
+ new_key_buf = xmalloc (key_buf_size + INP_BUF_ADD);
+ memcpy (new_key_buf, key_buf, key_buf_size);
+ key_buf_size += INP_BUF_ADD;
+ xfree (key_buf);
+ key_buf = new_key_buf;
+ }
+ }
+ no_diffs++;
+ nmemb = key_buf_ptr / KEY_SIZE;
+ assert (nmemb*KEY_SIZE == key_buf_ptr);
+ if ((info = dict_lookup (dict, cur_name)))
+ {
+ ISAM_P isam_p, isam_p2;
+ log (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);
+ }
+ else
+ {
+ ISAM_P isam_p;
+ log (LOG_DEBUG, "inserting %s", cur_name);
+ no_insertions++;
+ isam_p = is_merge (isam, 0, nmemb, key_buf);
+ dict_insert (dict, cur_name, sizeof(ISAM_P), &isam_p);
+ }
+ memcpy (key_buf, next_key, KEY_SIZE);
+ strcpy (cur_name, next_name);
+ }
+ fclose (inf);
+ return 0;
+}
+
+void key_input (const char *dict_fname, const char *isam_fname,
+ const char *key_fname, int cache)
+{
+ Dict dict;
+ ISAM isam;
+
+ dict = dict_open (dict_fname, cache, 1);
+ if (!dict)
+ {
+ log (LOG_FATAL, "dict_open fail of `%s'", dict_fname);
+ exit (1);
+ }
+ isam = is_open (isam_fname, key_compare, 1);
+ if (!isam)
+ {
+ log (LOG_FATAL, "is_open fail of `%s'", isam_fname);
+ exit (1);
+ }
+ inp (dict, isam, key_fname);
+ dict_close (dict);
+ is_close (isam);
+ log (LOG_LOG, "Iterations . . .%7d", no_iterations);
+ log (LOG_LOG, "Distinct words .%7d", no_diffs);
+ log (LOG_LOG, "Updates. . . . .%7d", no_updates);
+ log (LOG_LOG, "Insertions . . .%7d", no_insertions);
+}