/*
- * Copyright (C) 1994-1995, Index Data I/S
+ * Copyright (C) 1994-1996, Index Data I/S
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: extract.c,v $
- * Revision 1.17 1995-10-03 14:28:57 adam
+ * Revision 1.72 1997-07-15 16:32:29 adam
+ * Bug fix: Match handler didn't terminate the resulting string!
+ *
+ * Revision 1.71 1997/07/15 16:28:41 adam
+ * Bug fix: storeData didn't work with files with multiple records.
+ * Bug fix: fixed memory management with records; not really well
+ * thought through.
+ *
+ * Revision 1.70 1997/07/01 13:00:42 adam
+ * Bug fix in routine searchRecordKey: uninitialized variables.
+ *
+ * Revision 1.69 1997/04/29 09:26:03 adam
+ * Bug fix: generic recordId handling didn't work for compressed internal
+ * keys.
+ *
+ * Revision 1.68 1997/02/12 20:39:45 adam
+ * Implemented options -f <n> that limits the log to the first <n>
+ * records.
+ * Changed some log messages also.
+ *
+ * Revision 1.67 1996/11/15 15:02:14 adam
+ * Minor changes regarding logging.
+ *
+ * Revision 1.66 1996/11/14 09:52:21 adam
+ * Strings in record keys bound by IT_MAX_WORD.
+ *
+ * Revision 1.65 1996/11/14 08:57:56 adam
+ * Reduction of storeKeys area.
+ *
+ * Revision 1.64 1996/11/08 11:10:16 adam
+ * Buffers used during file match got bigger.
+ * Compressed ISAM support everywhere.
+ * Bug fixes regarding masking characters in queries.
+ * Redesigned Regexp-2 queries.
+ *
+ * Revision 1.63 1996/10/29 14:09:39 adam
+ * Use of cisam system - enabled if setting isamc is 1.
+ *
+ * Revision 1.62 1996/10/11 10:57:01 adam
+ * New module recctrl. Used to manage records (extract/retrieval).
+ * Several files have been moved to the recctrl sub directory.
+ *
+ * Revision 1.61 1996/06/06 12:08:37 quinn
+ * Added showRecord function
+ *
+ * Revision 1.60 1996/06/04 10:18:12 adam
+ * Search/scan uses character mapping module.
+ *
+ * Revision 1.59 1996/05/14 15:47:07 adam
+ * Cleanup of various buffer size entities.
+ *
+ * Revision 1.58 1996/05/14 06:16:38 adam
+ * Compact use/set bytes used in search service.
+ *
+ * Revision 1.57 1996/05/13 14:23:04 adam
+ * Work on compaction of set/use bytes in dictionary.
+ *
+ * Revision 1.56 1996/05/09 09:54:42 adam
+ * Server supports maps from one logical attributes to a list of physical
+ * attributes.
+ * The extraction process doesn't make space consuming 'any' keys.
+ *
+ * Revision 1.55 1996/05/09 07:28:55 quinn
+ * Work towards phrases and multiple registers
+ *
+ * Revision 1.54 1996/05/01 13:46:35 adam
+ * First work on multiple records in one file.
+ * New option, -offset, to the "unread" command in the filter module.
+ *
+ * Revision 1.53 1996/04/26 12:09:43 adam
+ * Added a few comments.
+ *
+ * Revision 1.52 1996/04/25 13:27:57 adam
+ * Function recordExtract modified so that files with no keys (possibly empty)
+ * are ignored.
+ *
+ * Revision 1.51 1996/03/19 11:08:42 adam
+ * Bug fix: Log preamble wasn't always turned off after recordExtract.
+ *
+ * Revision 1.50 1996/02/12 18:45:36 adam
+ * New fileVerboseFlag in record group control.
+ *
+ * Revision 1.49 1996/02/05 12:29:57 adam
+ * Logging reduced a bit.
+ * The remaining running time is estimated during register merge.
+ *
+ * Revision 1.48 1996/02/01 20:53:26 adam
+ * The temporary per-record keys are compacted a little, and duplication
+ * of the per-records keys are avoided when they are saved in the record
+ * information buffer.
+ *
+ * Revision 1.47 1996/01/17 14:57:48 adam
+ * Prototype changed for reader functions in extract/retrieve. File
+ * is identified by 'void *' instead of 'int.
+ *
+ * Revision 1.46 1995/12/15 14:57:16 adam
+ * Bug fix.
+ *
+ * Revision 1.45 1995/12/15 12:37:41 adam
+ * In addRecordKeyAny: Writes key only when attrSet != -1.
+ *
+ * Revision 1.44 1995/12/12 16:00:54 adam
+ * System call sync(2) used after update/commit.
+ * Locking (based on fcntl) uses F_EXLCK and F_SHLCK instead of F_WRLCK
+ * and F_RDLCK.
+ *
+ * Revision 1.43 1995/12/11 09:12:46 adam
+ * The rec_get function returns NULL if record doesn't exist - will
+ * happen in the server if the result set records have been deleted since
+ * the creation of the set (i.e. the search).
+ * The server saves a result temporarily if it is 'volatile', i.e. the
+ * set is register dependent.
+ *
+ * Revision 1.42 1995/12/07 17:38:46 adam
+ * Work locking mechanisms for concurrent updates/commit.
+ *
+ * Revision 1.41 1995/12/06 16:06:42 adam
+ * Better diagnostics. Work on 'real' dictionary deletion.
+ *
+ * Revision 1.40 1995/12/05 16:57:40 adam
+ * More work on regular patterns.
+ *
+ * Revision 1.39 1995/12/05 13:20:18 adam
+ * Bug fix: file_read sometimes returned early EOF.
+ *
+ * Revision 1.38 1995/12/04 17:59:21 adam
+ * More work on regular expression conversion.
+ *
+ * Revision 1.37 1995/12/04 14:22:27 adam
+ * Extra arg to recType_byName.
+ * Started work on new regular expression parsed input to
+ * structured records.
+ *
+ * Revision 1.36 1995/11/30 08:34:29 adam
+ * Started work on commit facility.
+ * Changed a few malloc/free to xmalloc/xfree.
+ *
+ * Revision 1.35 1995/11/28 14:26:21 adam
+ * Bug fix: recordId with constant wasn't right.
+ * Bug fix: recordId dictionary entry wasn't deleted when needed.
+ *
+ * Revision 1.34 1995/11/28 09:09:38 adam
+ * Zebra config renamed.
+ * Use setting 'recordId' to identify record now.
+ * Bug fix in recindex.c: rec_release_blocks was invokeded even
+ * though the blocks were already released.
+ * File traversal properly deletes records when needed.
+ *
+ * Revision 1.33 1995/11/27 09:56:20 adam
+ * Record info elements better enumerated. Internal store of records.
+ *
+ * Revision 1.32 1995/11/25 10:24:05 adam
+ * More record fields - they are enumerated now.
+ * New options: flagStoreData flagStoreKey.
+ *
+ * Revision 1.31 1995/11/24 11:31:35 adam
+ * Commands add & del read filenames from stdin if source directory is
+ * empty.
+ * Match criteria supports 'constant' strings.
+ *
+ * Revision 1.30 1995/11/22 17:19:16 adam
+ * Record management uses the bfile system.
+ *
+ * Revision 1.29 1995/11/21 15:01:14 adam
+ * New general match criteria implemented.
+ * New feature: document groups.
+ *
+ * Revision 1.28 1995/11/21 09:20:30 adam
+ * Yet more work on record match.
+ *
+ * Revision 1.27 1995/11/20 16:59:45 adam
+ * New update method: the 'old' keys are saved for each records.
+ *
+ * Revision 1.26 1995/11/20 11:56:24 adam
+ * Work on new traversal.
+ *
+ * Revision 1.25 1995/11/16 15:34:54 adam
+ * Uses new record management system in both indexer and server.
+ *
+ * Revision 1.24 1995/11/15 19:13:08 adam
+ * Work on record management.
+ *
+ * Revision 1.23 1995/10/27 14:00:10 adam
+ * Implemented detection of database availability.
+ *
+ * Revision 1.22 1995/10/17 18:02:07 adam
+ * New feature: databases. Implemented as prefix to words in dictionary.
+ *
+ * Revision 1.21 1995/10/10 12:24:38 adam
+ * Temporary sort files are compressed.
+ *
+ * Revision 1.20 1995/10/06 13:52:05 adam
+ * Bug fixes. Handler may abort further scanning.
+ *
+ * Revision 1.19 1995/10/04 12:55:16 adam
+ * Bug fix in ranked search. Use=Any keys inserted.
+ *
+ * Revision 1.18 1995/10/04 09:37:08 quinn
+ * Fixed bug.
+ *
+ * Revision 1.17 1995/10/03 14:28:57 adam
* Buffered read in extract works.
*
* Revision 1.16 1995/10/03 14:28:45 adam
#include <assert.h>
#include <unistd.h>
#include <fcntl.h>
-#include <ctype.h>
-#include <alexutil.h>
#include <recctrl.h>
#include "index.h"
-static Dict file_idx;
-static SYSNO sysno_next;
-static int sys_idx_fd = -1;
+#include "zinfo.h"
+
+static Dict matchDict;
+
+static Records records = NULL;
-static int key_cmd;
-static int key_sysno;
static char **key_buf;
static size_t ptr_top;
static size_t ptr_i;
-static size_t kused;
+static size_t key_buf_used;
static int key_file_no;
-void key_open (int mem)
+static int records_inserted = 0;
+static int records_updated = 0;
+static int records_deleted = 0;
+static int records_processed = 0;
+
+static ZebTargetInfo *zti = NULL;
+
+static void logRecord (int showFlag)
{
- void *file_key;
+ if (!showFlag)
+ ++records_processed;
+ if (showFlag || !(records_processed % 1000))
+ {
+ logf (LOG_LOG, "Records: %7d i/u/d %d/%d/%d",
+ records_processed, records_inserted, records_updated,
+ records_deleted);
+ }
+}
+void key_open (int mem)
+{
+ if (!mem)
+ mem = atoi(res_get_def (common_resource, "memMax", "4"))*1024*1024;
if (mem < 50000)
mem = 50000;
key_buf = xmalloc (mem);
ptr_top = mem/sizeof(char*);
ptr_i = 0;
- kused = 0;
+
+ key_buf_used = 0;
key_file_no = 0;
- if (!(file_idx = dict_open (FNAME_FILE_DICT, 40, 1)))
+ if (!(matchDict = dict_open (GMATCH_DICT, 50, 1)))
{
- logf (LOG_FATAL, "dict_open fail of %s", "fileidx");
+ logf (LOG_FATAL, "dict_open fail of %s", GMATCH_DICT);
exit (1);
}
- file_key = dict_lookup (file_idx, ".");
- if (file_key)
- memcpy (&sysno_next, (char*)file_key+1, sizeof(sysno_next));
+ assert (!records);
+ records = rec_open (1);
+#if 1
+ zti = zebTargetInfo_open (records, 1);
+#endif
+}
+
+struct encode_info {
+ int sysno;
+ int seqno;
+ char buf[768];
+};
+
+void encode_key_init (struct encode_info *i)
+{
+ i->sysno = 0;
+ i->seqno = 0;
+}
+
+char *encode_key_int (int d, char *bp)
+{
+ if (d <= 63)
+ *bp++ = d;
+ else if (d <= 16383)
+ {
+ *bp++ = 64 + (d>>8);
+ *bp++ = d & 255;
+ }
+ else if (d <= 4194303)
+ {
+ *bp++ = 128 + (d>>16);
+ *bp++ = (d>>8) & 255;
+ *bp++ = d & 255;
+ }
else
- sysno_next = 1;
- if ((sys_idx_fd = open (FNAME_SYS_IDX, O_RDWR|O_CREAT, 0666)) == -1)
{
- logf (LOG_FATAL|LOG_ERRNO, "open %s", FNAME_SYS_IDX);
+ *bp++ = 192 + (d>>24);
+ *bp++ = (d>>16) & 255;
+ *bp++ = (d>>8) & 255;
+ *bp++ = d & 255;
+ }
+ return bp;
+}
+
+void encode_key_write (char *k, struct encode_info *i, FILE *outf)
+{
+ struct it_key key;
+ char *bp = i->buf;
+
+ while ((*bp++ = *k++))
+ ;
+ memcpy (&key, k+1, sizeof(struct it_key));
+ bp = encode_key_int ( (key.sysno - i->sysno) * 2 + *k, bp);
+ if (i->sysno != key.sysno)
+ {
+ i->sysno = key.sysno;
+ i->seqno = 0;
+ }
+ bp = encode_key_int (key.seqno - i->seqno, bp);
+ i->seqno = key.seqno;
+ if (fwrite (i->buf, bp - i->buf, 1, outf) != 1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "fwrite");
exit (1);
}
}
-
+
+#define SORT_EXTRA 0
+
+#if SORT_EXTRA
+static int key_y_len;
+
+static int key_y_compare (const void *p1, const void *p2)
+{
+ int r;
+
+ if ((r = key_compare (*(char**) p1 + key_y_len + 1,
+ *(char**) p2 + key_y_len + 1)))
+ return r;
+ return *(*(char**) p1 + key_y_len) - *(*(char**) p2 + key_y_len);
+}
+
+static int key_x_compare (const void *p1, const void *p2)
+{
+ return strcmp (*(char**) p1, *(char**) p2);
+}
+#endif
+
void key_flush (void)
{
FILE *outf;
char out_fname[200];
char *prevcp, *cp;
+ struct encode_info encode_info;
+#if SORT_EXTRA
+ int i;
+#endif
if (ptr_i <= 0)
return;
key_file_no++;
logf (LOG_LOG, "sorting section %d", key_file_no);
+#if !SORT_EXTRA
qsort (key_buf + ptr_top-ptr_i, ptr_i, sizeof(char*), key_qsort_compare);
- sprintf (out_fname, TEMP_FNAME, key_file_no);
+ getFnameTmp (out_fname, key_file_no);
if (!(outf = fopen (out_fname, "w")))
{
logf (LOG_LOG, "writing section %d", key_file_no);
prevcp = cp = key_buf[ptr_top-ptr_i];
- if (fwrite (cp, strlen (cp)+2+sizeof(struct it_key), 1, outf) != 1)
- {
- logf (LOG_FATAL|LOG_ERRNO, "fwrite %s", out_fname);
- exit (1);
- }
+ encode_key_init (&encode_info);
+ encode_key_write (cp, &encode_info, outf);
while (--ptr_i > 0)
{
cp = key_buf[ptr_top-ptr_i];
if (strcmp (cp, prevcp))
{
- if (fwrite (cp, strlen (cp)+2+sizeof(struct it_key), 1,
- outf) != 1)
- {
- logf (LOG_FATAL|LOG_ERRNO, "fwrite %s", out_fname);
- exit (1);
- }
+ encode_key_init (&encode_info);
+ encode_key_write (cp, &encode_info, outf);
prevcp = cp;
}
else
+ encode_key_write (cp + strlen(cp), &encode_info, outf);
+ }
+#else
+ qsort (key_buf + ptr_top-ptr_i, ptr_i, sizeof(char*), key_x_compare);
+ getFnameTmp (out_fname, key_file_no);
+
+ if (!(outf = fopen (out_fname, "w")))
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "fopen (4) %s", out_fname);
+ exit (1);
+ }
+ logf (LOG_LOG, "writing section %d", key_file_no);
+ i = ptr_i;
+ prevcp = key_buf[ptr_top-i];
+ while (1)
+ if (!--i || strcmp (prevcp, key_buf[ptr_top-i]))
{
- cp = strlen (cp) + cp;
- if (fwrite (cp, 2+sizeof(struct it_key), 1, outf) != 1)
+ key_y_len = strlen(prevcp)+1;
+#if 0
+ logf (LOG_LOG, "key_y_len: %2d %02x %02x %s",
+ key_y_len, prevcp[0], prevcp[1], 2+prevcp);
+#endif
+ qsort (key_buf + ptr_top-ptr_i, ptr_i - i,
+ sizeof(char*), key_y_compare);
+ cp = key_buf[ptr_top-ptr_i];
+ --key_y_len;
+ encode_key_init (&encode_info);
+ encode_key_write (cp, &encode_info, outf);
+ while (--ptr_i > i)
{
- logf (LOG_FATAL|LOG_ERRNO, "fwrite %s", out_fname);
- exit (1);
+ cp = key_buf[ptr_top-ptr_i];
+ encode_key_write (cp+key_y_len, &encode_info, outf);
}
+ if (!i)
+ break;
+ prevcp = key_buf[ptr_top-ptr_i];
}
- }
+#endif
if (fclose (outf))
{
logf (LOG_FATAL|LOG_ERRNO, "fclose %s", out_fname);
}
logf (LOG_LOG, "finished section %d", key_file_no);
ptr_i = 0;
- kused = 0;
+ key_buf_used = 0;
}
int key_close (void)
{
key_flush ();
xfree (key_buf);
- close (sys_idx_fd);
- dict_insert (file_idx, ".", sizeof(sysno_next), &sysno_next);
- dict_close (file_idx);
+#if 1
+ zebTargetInfo_close (zti, 1);
+#endif
+ rec_close (&records);
+ dict_close (matchDict);
+
+ logRecord (1);
return key_file_no;
}
p->which = Word_String;
}
-static void wordAdd (const RecWord *p)
+struct recKeys {
+ int buf_used;
+ int buf_max;
+ char *buf;
+ char prevAttrSet;
+ short prevAttrUse;
+ int prevSeqNo;
+} reckeys;
+
+static void addRecordKey (const RecWord *p)
{
- struct it_key key;
+ char *dst;
+ char attrSet;
+ short attrUse;
size_t i;
+ int lead = 0;
+ int diff = 0;
+
+ if (reckeys.buf_used+1024 > reckeys.buf_max)
+ {
+ char *b;
+
+ b = xmalloc (reckeys.buf_max += 128000);
+ if (reckeys.buf_used > 0)
+ memcpy (b, reckeys.buf, reckeys.buf_used);
+ xfree (reckeys.buf);
+ reckeys.buf = b;
+ }
+ dst = reckeys.buf + reckeys.buf_used;
+
+ attrSet = p->attrSet;
+ if (reckeys.buf_used > 0 && reckeys.prevAttrSet == attrSet)
+ lead |= 1;
+ else
+ reckeys.prevAttrSet = attrSet;
+ attrUse = p->attrUse;
+ if (reckeys.buf_used > 0 && reckeys.prevAttrUse == attrUse)
+ lead |= 2;
+ else
+ reckeys.prevAttrUse = attrUse;
+#if 1
+ diff = 1 + p->seqno - reckeys.prevSeqNo;
+ if (diff >= 1 && diff <= 15)
+ lead |= (diff << 2);
+ else
+ diff = 0;
+#endif
+ reckeys.prevSeqNo = p->seqno;
+
+ *dst++ = lead;
- if (kused + 1024 > (ptr_top-ptr_i)*sizeof(char*))
- key_flush ();
- ++ptr_i;
- key_buf[ptr_top-ptr_i] = (char*)key_buf + kused;
- kused += index_word_prefix ((char*)key_buf + kused,
- p->attrSet, p->attrUse);
+ if (!(lead & 1))
+ {
+ memcpy (dst, &attrSet, sizeof(attrSet));
+ dst += sizeof(attrSet);
+ }
+ if (!(lead & 2))
+ {
+ memcpy (dst, &attrUse, sizeof(attrUse));
+ dst += sizeof(attrUse);
+ }
switch (p->which)
{
- case Word_String:
- for (i = 0; p->u.string[i]; i++)
- ((char*)key_buf) [kused++] = index_char_cvt (p->u.string[i]);
- ((char*)key_buf) [kused++] = '\0';
- break;
- default:
- return ;
+ case Word_String:
+ *dst++ = 'w';
+ break;
+ case Word_Phrase:
+ *dst++ = 'p';
+ break;
+ case Word_Numeric:
+ *dst++ = 'n';
+ }
+ for (i = 0; p->u.string[i] && i < IT_MAX_WORD-3; i++)
+ *dst++ = p->u.string[i];
+ *dst++ = '\0';
+
+ if (!diff)
+ {
+ memcpy (dst, &p->seqno, sizeof(p->seqno));
+ dst += sizeof(p->seqno);
+ }
+ reckeys.buf_used = dst - reckeys.buf;
+}
+
+static void flushRecordKeys (SYSNO sysno, int cmd, struct recKeys *reckeys,
+ const char *databaseName)
+{
+ char attrSet = -1;
+ short attrUse = -1;
+ int seqno = 0;
+ int off = 0;
+
+ if (zebTargetInfo_curDatabase (zti, databaseName))
+ {
+ if (zebTargetInfo_newDatabase (zti, databaseName))
+ abort ();
+ }
+ while (off < reckeys->buf_used)
+ {
+ const char *src = reckeys->buf + off;
+ struct it_key key;
+ int lead, ch;
+
+ lead = *src++;
+
+ if (!(lead & 1))
+ {
+ memcpy (&attrSet, src, sizeof(attrSet));
+ src += sizeof(attrSet);
+ }
+ if (!(lead & 2))
+ {
+ memcpy (&attrUse, src, sizeof(attrUse));
+ src += sizeof(attrUse);
+ }
+ if (key_buf_used + 1024 > (ptr_top-ptr_i)*sizeof(char*))
+ key_flush ();
+ ++ptr_i;
+ key_buf[ptr_top-ptr_i] = (char*)key_buf + key_buf_used;
+
+ ch = zebTargetInfo_lookupSU (zti, attrSet, attrUse);
+ if (ch < 0)
+ ch = zebTargetInfo_addSU (zti, attrSet, attrUse);
+ assert (ch > 0);
+ ((char*) key_buf) [key_buf_used++] = ch;
+ while (*src)
+ ((char*)key_buf) [key_buf_used++] = *src++;
+ src++;
+ ((char*)key_buf) [key_buf_used++] = '\0';
+ ((char*) key_buf)[key_buf_used++] = cmd;
+
+ if (lead & 60)
+ seqno += ((lead>>2) & 15)-1;
+ else
+ {
+ memcpy (&seqno, src, sizeof(seqno));
+ src += sizeof(seqno);
+ }
+ key.seqno = seqno;
+ key.sysno = sysno;
+ memcpy ((char*)key_buf + key_buf_used, &key, sizeof(key));
+ key_buf_used += sizeof(key);
+ off = src - reckeys->buf;
+ }
+ assert (off == reckeys->buf_used);
+}
+
+static const char **searchRecordKey (struct recKeys *reckeys,
+ int attrSetS, int attrUseS)
+{
+ static const char *ws[32];
+ int off = 0;
+ int startSeq = -1;
+ int i;
+ short attrUse;
+ char attrSet;
+ int seqno = 0;
+
+ for (i = 0; i<32; i++)
+ ws[i] = NULL;
+
+ while (off < reckeys->buf_used)
+ {
+
+ const char *src = reckeys->buf + off;
+ const char *wstart;
+ int lead;
+
+ lead = *src++;
+
+ if (!(lead & 1))
+ {
+ memcpy (&attrSet, src, sizeof(attrSet));
+ src += sizeof(attrSet);
+ }
+ if (!(lead & 2))
+ {
+ memcpy (&attrUse, src, sizeof(attrUse));
+ src += sizeof(attrUse);
+ }
+ wstart = src;
+ while (*src++)
+ ;
+ if (lead & 60)
+ seqno += ((lead>>2) & 15)-1;
+ else
+ {
+ memcpy (&seqno, src, sizeof(seqno));
+ src += sizeof(seqno);
+ }
+ if (attrUseS == attrUse && attrSetS == attrSet)
+ {
+ int woff;
+
+
+ if (startSeq == -1)
+ startSeq = seqno;
+ woff = seqno - startSeq;
+ if (woff >= 0 && woff < 31)
+ ws[woff] = wstart;
+ }
+
+ off = src - reckeys->buf;
+ }
+ assert (off == reckeys->buf_used);
+ return ws;
+}
+
+struct file_read_info {
+ off_t file_max;
+ off_t file_offset;
+ off_t file_moffset;
+ int file_more;
+ int fd;
+};
+
+static struct file_read_info *file_read_start (int fd)
+{
+ struct file_read_info *fi = xmalloc (sizeof(*fi));
+
+ fi->fd = fd;
+ fi->file_max = 0;
+ fi->file_moffset = 0;
+ return fi;
+}
+
+static void file_read_stop (struct file_read_info *fi)
+{
+ assert (fi);
+ xfree (fi);
+}
+
+static off_t file_seek (void *handle, off_t offset)
+{
+ struct file_read_info *p = handle;
+ p->file_offset = offset;
+ return lseek (p->fd, offset, SEEK_SET);
+}
+
+static int file_read (void *handle, char *buf, size_t count)
+{
+ struct file_read_info *p = handle;
+ int fd = p->fd;
+ int r;
+ r = read (fd, buf, count);
+ if (r > 0)
+ {
+ p->file_offset += r;
+ if (p->file_offset > p->file_max)
+ p->file_max = p->file_offset;
}
- ((char*) key_buf)[kused++] = ((key_cmd == 'a') ? 1 : 0);
- key.sysno = key_sysno;
- key.seqno = p->seqno;
- memcpy ((char*)key_buf + kused, &key, sizeof(key));
- kused += sizeof(key);
+ return r;
}
-#define FILE_READ_BUF 1
-#if FILE_READ_BUF
-static char *file_buf;
-static int file_offset;
-static int file_bufsize;
+static void file_begin (void *handle)
+{
+ struct file_read_info *p = handle;
+
+ p->file_offset = p->file_moffset;
+ if (p->file_moffset)
+ lseek (p->fd, p->file_moffset, SEEK_SET);
+ p->file_more = 0;
+}
-static void file_read_start (int fd)
+static void file_end (void *handle, off_t offset)
{
- file_offset = 0;
- file_buf = xmalloc (4096);
- file_bufsize = read (fd, file_buf, 4096);
+ struct file_read_info *p = handle;
+
+ assert (p->file_more == 0);
+ p->file_more = 1;
+ p->file_moffset = offset;
}
-static void file_read_stop (int fd)
+static int atois (const char **s)
{
- xfree (file_buf);
+ int val = 0, c;
+ while ( (c=**s) >= '0' && c <= '9')
+ {
+ val = val*10 + c - '0';
+ ++(*s);
+ }
+ return val;
}
-static int file_read (int fd, char *buf, size_t count)
+static char *fileMatchStr (struct recKeys *reckeys, struct recordGroup *rGroup,
+ const char *fname,
+ const char *spec)
{
- int l = file_bufsize - file_offset;
+ static char dstBuf[2048];
+ char *dst = dstBuf;
+ const char *s = spec;
+ static const char **w;
+ int i;
- if (count > l)
+ while (1)
{
- int r;
- if (l > 0)
- memcpy (buf, file_buf + file_offset, l);
- count = count-l;
- if (count > file_bufsize)
+ while (*s == ' ' || *s == '\t')
+ s++;
+ if (!*s)
+ break;
+ if (*s == '(')
{
- if ((r = read (fd, buf + l, count)) == -1)
+ char matchFlag[32];
+ int attrSet, attrUse;
+ int first = 1;
+
+ s++;
+ attrSet = atois (&s);
+ if (*s != ',')
+ {
+ logf (LOG_WARN, "Missing , in match criteria %s in group %s",
+ spec, rGroup->groupName ? rGroup->groupName : "none");
+ return NULL;
+ }
+ s++;
+ attrUse = atois (&s);
+ w = searchRecordKey (reckeys, attrSet, attrUse);
+ assert (w);
+
+ if (*s == ')')
+ {
+ for (i = 0; i<32; i++)
+ matchFlag[i] = 1;
+ }
+ else
{
- logf (LOG_FATAL|LOG_ERRNO, "read");
- exit (1);
+ logf (LOG_WARN, "Missing ) in match criteria %s in group %s",
+ spec, rGroup->groupName ? rGroup->groupName : "none");
+ return NULL;
+ }
+ s++;
+
+ for (i = 0; i<32; i++)
+ if (matchFlag[i] && w[i])
+ {
+ if (first)
+ {
+ *dst++ = ' ';
+ first = 0;
+ }
+ strcpy (dst, w[i]);
+ dst += strlen(w[i]);
+ }
+ if (first)
+ {
+ logf (LOG_WARN, "Record didn't contain match"
+ " fields in (%d,%d)", attrSet, attrUse);
+ return NULL;
}
- file_bufsize = 0;
- file_offset = 0;
- return r;
}
- file_bufsize = r = read (fd, file_buf, 4096);
- if (r == -1)
+ else if (*s == '$')
{
- logf (LOG_FATAL|LOG_ERRNO, "read");
- exit (1);
+ int spec_len;
+ char special[64];
+ const char *spec_src = NULL;
+ const char *s1 = ++s;
+ while (*s1 && *s1 != ' ' && *s1 != '\t')
+ s1++;
+
+ spec_len = s1 - s;
+ if (spec_len > 63)
+ spec_len = 63;
+ memcpy (special, s, spec_len);
+ special[spec_len] = '\0';
+ s = s1;
+
+ if (!strcmp (special, "group"))
+ spec_src = rGroup->groupName;
+ else if (!strcmp (special, "database"))
+ spec_src = rGroup->databaseName;
+ else if (!strcmp (special, "filename"))
+ spec_src = fname;
+ else if (!strcmp (special, "type"))
+ spec_src = rGroup->recordType;
+ else
+ spec_src = NULL;
+ if (spec_src)
+ {
+ strcpy (dst, spec_src);
+ dst += strlen (spec_src);
+ }
}
- else if (r <= count)
+ else if (*s == '\"' || *s == '\'')
{
- file_offset = r;
- memcpy (buf + l, file_buf, r);
- return l + r;
+ int stopMarker = *s++;
+ char tmpString[64];
+ int i = 0;
+
+ while (*s && *s != stopMarker)
+ {
+ if (i < 63)
+ tmpString[i++] = *s++;
+ }
+ if (*s)
+ s++;
+ tmpString[i] = '\0';
+ strcpy (dst, tmpString);
+ dst += strlen (tmpString);
}
else
{
- file_offset = count;
- memcpy (buf + l, file_buf, count - l);
- return count;
+ logf (LOG_WARN, "Syntax error in match criteria %s in group %s",
+ spec, rGroup->groupName ? rGroup->groupName : "none");
+ return NULL;
}
+ *dst++ = 1;
+ }
+ if (dst == dstBuf)
+ {
+ logf (LOG_WARN, "No match criteria for record %s in group %s",
+ fname, rGroup->groupName ? rGroup->groupName : "none");
+ return NULL;
}
- memcpy (buf, file_buf + file_offset, count);
- file_offset += count;
- return count;
+ *dst = '\0';
+ return dstBuf;
}
-#else
-static int file_read (int fd, char *buf, size_t count)
+
+struct recordLogInfo {
+ const char *fname;
+ int recordOffset;
+ struct recordGroup *rGroup;
+};
+
+static void recordLogPreamble (int level, const char *msg, void *info)
{
- return read (fd, buf, count);
+ struct recordLogInfo *p = info;
+ FILE *outf = log_file ();
+
+ if (level & LOG_LOG)
+ return ;
+ fprintf (outf, "File %s, offset %d, type %s\n",
+ p->rGroup->recordType, p->recordOffset, p->fname);
+ log_event_start (NULL, NULL);
}
+
+static int recordExtract (SYSNO *sysno, const char *fname,
+ struct recordGroup *rGroup, int deleteFlag,
+ struct file_read_info *fi, RecType recType,
+ char *subType)
+{
+ struct recExtractCtrl extractCtrl;
+ int r;
+ char *matchStr;
+ SYSNO sysnotmp;
+ off_t recordOffset = 0;
+ Record rec;
+ struct recordLogInfo logInfo;
+
+ if (fi->fd != -1)
+ {
+ /* we are going to read from a file, so prepare the extraction */
+ extractCtrl.fh = fi;
+ extractCtrl.subType = subType;
+ extractCtrl.init = wordInit;
+ extractCtrl.add = addRecordKey;
+
+ reckeys.buf_used = 0;
+ reckeys.prevAttrUse = -1;
+ reckeys.prevAttrSet = -1;
+ reckeys.prevSeqNo = 0;
+
+ recordOffset = fi->file_moffset;
+ extractCtrl.offset = recordOffset;
+ extractCtrl.readf = file_read;
+ extractCtrl.seekf = file_seek;
+ extractCtrl.endf = file_end;
+ extractCtrl.map_chrs_input = map_chrs_input;
+ extractCtrl.flagShowRecords = rGroup->flagShowRecords;
+ if (rGroup->flagShowRecords)
+ printf ("File: %s %ld\n", fname, (long) recordOffset);
+
+ logInfo.fname = fname;
+ logInfo.recordOffset = recordOffset;
+ logInfo.rGroup = rGroup;
+ log_event_start (recordLogPreamble, &logInfo);
+
+ r = (*recType->extract)(&extractCtrl);
+
+ log_event_start (NULL, NULL);
+
+ if (r)
+ {
+ /* error occured during extraction ... */
+ if (!rGroup->flagShowRecords &&
+ records_processed < rGroup->fileVerboseLimit)
+ {
+ logf (LOG_WARN, "fail %s %s %ld code = %d", rGroup->recordType,
+ fname, (long) recordOffset, r);
+ }
+ return 0;
+ }
+ if (reckeys.buf_used == 0)
+ {
+ /* the extraction process returned no information - the record
+ is probably empty - unless flagShowRecords is in use */
+ if (rGroup->flagShowRecords)
+ return 1;
+ logf (LOG_WARN, "No keys generated for file %s", fname);
+ logf (LOG_WARN, " The file is probably empty");
+ return 0;
+ }
+ }
+
+ /* perform match if sysno not known and if match criteria is specified */
+
+ matchStr = NULL;
+ if (!sysno)
+ {
+ sysnotmp = 0;
+ sysno = &sysnotmp;
+ if (rGroup->recordId && *rGroup->recordId)
+ {
+ char *rinfo;
+
+ matchStr = fileMatchStr (&reckeys, rGroup, fname,
+ rGroup->recordId);
+ if (matchStr)
+ {
+ rinfo = dict_lookup (matchDict, matchStr);
+ if (rinfo)
+ memcpy (sysno, rinfo+1, sizeof(*sysno));
+ }
+ else
+ {
+ logf (LOG_WARN, "Bad match criteria");
+ return 0;
+ }
+ }
+ }
+
+ if (! *sysno)
+ {
+ /* new record */
+ if (deleteFlag)
+ {
+ logf (LOG_LOG, "Cannot delete new record");
+ return 1;
+ }
+ if (records_processed < rGroup->fileVerboseLimit)
+ logf (LOG_LOG, "add %s %s %ld", rGroup->recordType,
+ fname, (long) recordOffset);
+ rec = rec_new (records);
+ *sysno = rec->sysno;
+
+ if (matchStr)
+ {
+ dict_insert (matchDict, matchStr, sizeof(*sysno), sysno);
+ }
+ flushRecordKeys (*sysno, 1, &reckeys, rGroup->databaseName);
+
+ records_inserted++;
+ }
+ else
+ {
+ /* record already exists */
+ struct recKeys delkeys;
+
+ rec = rec_get (records, *sysno);
+ assert (rec);
+ delkeys.buf_used = rec->size[recInfo_delKeys];
+ delkeys.buf = rec->info[recInfo_delKeys];
+ flushRecordKeys (*sysno, 0, &delkeys, rec->info[recInfo_databaseName]);
+ if (deleteFlag)
+ {
+ /* record going to be deleted */
+ if (!delkeys.buf_used)
+ {
+ logf (LOG_LOG, "delete %s %s %ld", rGroup->recordType,
+ fname, (long) recordOffset);
+ logf (LOG_WARN, "cannot delete file above, storeKeys false");
+ }
+ else
+ {
+ if (records_processed < rGroup->fileVerboseLimit)
+ logf (LOG_LOG, "delete %s %s %ld", rGroup->recordType,
+ fname, (long) recordOffset);
+ records_deleted++;
+ if (matchStr)
+ dict_delete (matchDict, matchStr);
+ rec_del (records, &rec);
+ }
+ logRecord (0);
+ return 1;
+ }
+ else
+ {
+ /* record going to be updated */
+ if (!delkeys.buf_used)
+ {
+ logf (LOG_LOG, "update %s %s %ld", rGroup->recordType,
+ fname, (long) recordOffset);
+ logf (LOG_WARN, "cannot update file above, storeKeys false");
+ }
+ else
+ {
+ if (records_processed < rGroup->fileVerboseLimit)
+ logf (LOG_LOG, "update %s %s %ld", rGroup->recordType,
+ fname, (long) recordOffset);
+ flushRecordKeys (*sysno, 1, &reckeys, rGroup->databaseName);
+ records_updated++;
+ }
+ }
+ }
+ /* update file type */
+ xfree (rec->info[recInfo_fileType]);
+ rec->info[recInfo_fileType] =
+ rec_strdup (rGroup->recordType, &rec->size[recInfo_fileType]);
+
+ /* update filename */
+ xfree (rec->info[recInfo_filename]);
+ rec->info[recInfo_filename] =
+ rec_strdup (fname, &rec->size[recInfo_filename]);
+
+ /* update delete keys */
+ xfree (rec->info[recInfo_delKeys]);
+ if (reckeys.buf_used > 0 && rGroup->flagStoreKeys == 1)
+ {
+#if 1
+ rec->size[recInfo_delKeys] = reckeys.buf_used;
+ rec->info[recInfo_delKeys] = reckeys.buf;
+ reckeys.buf = NULL;
+ reckeys.buf_max = 0;
+#else
+ rec->info[recInfo_delKeys] = xmalloc (reckeys.buf_used);
+ rec->size[recInfo_delKeys] = reckeys.buf_used;
+ memcpy (rec->info[recInfo_delKeys], reckeys.buf,
+ rec->size[recInfo_delKeys]);
#endif
-void file_extract (int cmd, const char *fname, const char *kname)
+ }
+ else
+ {
+ rec->info[recInfo_delKeys] = NULL;
+ rec->size[recInfo_delKeys] = 0;
+ }
+
+ /* update store data */
+ xfree (rec->info[recInfo_storeData]);
+ if (rGroup->flagStoreData == 1)
+ {
+ int size = fi->file_moffset - recordOffset;
+ if (!size)
+ size = fi->file_max - recordOffset;
+ rec->size[recInfo_storeData] = size;
+ rec->info[recInfo_storeData] = xmalloc (size);
+ if (lseek (fi->fd, recordOffset, SEEK_SET) < 0)
+ {
+ logf (LOG_ERRNO|LOG_FATAL, "seek to %ld in %s", fname,
+ (long) recordOffset);
+ exit (1);
+ }
+ if (read (fi->fd, rec->info[recInfo_storeData], size) < size)
+ {
+ logf (LOG_ERRNO|LOG_FATAL, "read %d bytes of %s",
+ fi->file_max, fname);
+ exit (1);
+ }
+ }
+ else
+ {
+ rec->info[recInfo_storeData] = NULL;
+ rec->size[recInfo_storeData] = 0;
+ }
+ /* update database name */
+ xfree (rec->info[recInfo_databaseName]);
+ rec->info[recInfo_databaseName] =
+ rec_strdup (rGroup->databaseName, &rec->size[recInfo_databaseName]);
+
+ /* update offset */
+ xfree (rec->info[recInfo_offset]);
+
+ rec->size[recInfo_offset] = sizeof(recordOffset);
+ rec->info[recInfo_offset] = xmalloc (sizeof(recordOffset));
+ memcpy (rec->info[recInfo_offset], &recordOffset, sizeof(recordOffset));
+
+ /* commit this record */
+ rec_put (records, &rec);
+ logRecord (0);
+ return 1;
+}
+
+int fileExtract (SYSNO *sysno, const char *fname,
+ const struct recordGroup *rGroupP, int deleteFlag)
{
- int i, r;
+ int r, i, fd;
+ char gprefix[128];
char ext[128];
- SYSNO sysno;
char ext_res[128];
- const char *file_type;
- void *file_info;
- struct recExtractCtrl extractCtrl;
- RecType rt;
+ char subType[128];
+ RecType recType;
+ struct recordGroup rGroupM;
+ struct recordGroup *rGroup = &rGroupM;
+ struct file_read_info *fi;
+
+ memcpy (rGroup, rGroupP, sizeof(*rGroupP));
+
+ if (!rGroup->groupName || !*rGroup->groupName)
+ *gprefix = '\0';
+ else
+ sprintf (gprefix, "%s.", rGroup->groupName);
+
+ logf (LOG_DEBUG, "fileExtract %s", fname);
+ /* determine file extension */
for (i = strlen(fname); --i >= 0; )
if (fname[i] == '/')
{
strcpy (ext, fname+i+1);
break;
}
- sprintf (ext_res, "fileExtension.%s", ext);
- if (!(file_type = res_get (common_resource, ext_res)))
- return;
- if (!(rt = recType_byName (file_type)))
- return;
- logf (LOG_DEBUG, "%c %s k=%s", cmd, fname, kname);
- file_info = dict_lookup (file_idx, kname);
- if (!file_info)
+ /* determine file type - depending on extension */
+ if (!rGroup->recordType)
+ {
+ sprintf (ext_res, "%srecordType.%s", gprefix, ext);
+ if (!(rGroup->recordType = res_get (common_resource, ext_res)))
+ {
+ sprintf (ext_res, "%srecordType", gprefix);
+ if (!(rGroup->recordType = res_get (common_resource, ext_res)))
+ {
+ if (records_processed < rGroup->fileVerboseLimit)
+ logf (LOG_LOG, "? %s", fname);
+ return 0;
+ }
+ }
+ }
+ if (!rGroup->recordType)
{
- sysno = sysno_next++;
- dict_insert (file_idx, kname, sizeof(sysno), &sysno);
- lseek (sys_idx_fd, sysno * SYS_IDX_ENTRY_LEN, SEEK_SET);
- write (sys_idx_fd, file_type, strlen (file_type)+1);
- write (sys_idx_fd, kname, strlen(kname)+1);
+ if (records_processed < rGroup->fileVerboseLimit)
+ logf (LOG_LOG, "? record %s", fname);
+ return 0;
+ }
+ if (!(recType = recType_byName (rGroup->recordType, subType)))
+ {
+ logf (LOG_WARN, "No such record type: %s", rGroup->recordType);
+ return 0;
}
- else
- memcpy (&sysno, (char*) file_info+1, sizeof(sysno));
- if ((extractCtrl.fd = open (fname, O_RDONLY)) == -1)
+ /* determine match criteria */
+ if (!rGroup->recordId)
{
- logf (LOG_WARN|LOG_ERRNO, "open %s", fname);
- return;
+ sprintf (ext_res, "%srecordId.%s", gprefix, ext);
+ rGroup->recordId = res_get (common_resource, ext_res);
}
- extractCtrl.subType = "";
- extractCtrl.init = wordInit;
- extractCtrl.add = wordAdd;
-#if FILE_READ_BUF
- file_read_start (extractCtrl.fd);
-#endif
- extractCtrl.readf = file_read;
-#if FILE_READ_BUF
- file_read_stop (extractCtrl.fd);
-#endif
- key_sysno = sysno;
- key_cmd = cmd;
- r = (*rt->extract)(&extractCtrl);
- close (extractCtrl.fd);
- if (r)
- logf (LOG_WARN, "Couldn't extract file %s, code %d", fname, r);
+
+ /* determine database name */
+ if (!rGroup->databaseName)
+ {
+ sprintf (ext_res, "%sdatabase.%s", gprefix, ext);
+ if (!(rGroup->databaseName = res_get (common_resource, ext_res)))
+ {
+ sprintf (ext_res, "%sdatabase", gprefix);
+ rGroup->databaseName = res_get (common_resource, ext_res);
+ }
+ }
+ if (!rGroup->databaseName)
+ rGroup->databaseName = "Default";
+
+ if (rGroup->flagStoreData == -1)
+ {
+ const char *sval;
+ sprintf (ext_res, "%sstoreData.%s", gprefix, ext);
+ if (!(sval = res_get (common_resource, ext_res)))
+ {
+ sprintf (ext_res, "%sstoreData", gprefix);
+ sval = res_get (common_resource, ext_res);
+ }
+ if (sval)
+ rGroup->flagStoreData = atoi (sval);
+ }
+ if (rGroup->flagStoreData == -1)
+ rGroup->flagStoreData = 0;
+
+ if (rGroup->flagStoreKeys == -1)
+ {
+ const char *sval;
+
+ sprintf (ext_res, "%sstoreKeys.%s", gprefix, ext);
+ if (!(sval = res_get (common_resource, ext_res)))
+ {
+ sprintf (ext_res, "%sstoreKeys", gprefix);
+ sval = res_get (common_resource, ext_res);
+ }
+ if (sval)
+ rGroup->flagStoreKeys = atoi (sval);
+ }
+ if (rGroup->flagStoreKeys == -1)
+ rGroup->flagStoreKeys = 0;
+
+ if (sysno && deleteFlag)
+ fd = -1;
+ else
+ {
+ if ((fd = open (fname, O_RDONLY)) == -1)
+ {
+ logf (LOG_WARN|LOG_ERRNO, "open %s", fname);
+ return 0;
+ }
+ }
+ fi = file_read_start (fd);
+ do
+ {
+ file_begin (fi);
+ r = recordExtract (sysno, fname, rGroup, deleteFlag, fi,
+ recType, subType);
+ } while (r && !sysno && fi->file_more);
+ file_read_stop (fi);
+ if (fd != -1)
+ close (fd);
+ return r;
}
+