X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=index%2Fextract.c;h=b320cbc54812a4d14696025b679b9b94f1f6cd4b;hb=85df66537199c30a492ad54be4fbe25fa77e18c8;hp=6e0e35fb6e0937c32d79cd75c7da1333e9b76544;hpb=ee27bc5fbcda811696062a9ed8bf86b8520391ce;p=idzebra-moved-to-github.git diff --git a/index/extract.c b/index/extract.c index 6e0e35f..b320cbc 100644 --- a/index/extract.c +++ b/index/extract.c @@ -4,7 +4,34 @@ * Sebastian Hammer, Adam Dickmeiss * * $Log: extract.c,v $ - * Revision 1.37 1995-12-04 14:22:27 adam + * 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. @@ -158,8 +185,6 @@ static int records_inserted = 0; static int records_updated = 0; static int records_deleted = 0; -#define MATCH_DICT "match" - void key_open (int mem) { if (mem < 50000) @@ -171,9 +196,9 @@ void key_open (int mem) key_buf_used = 0; key_file_no = 0; - if (!(matchDict = dict_open (MATCH_DICT, 20, 1))) + if (!(matchDict = dict_open (GMATCH_DICT, 50, 1))) { - logf (LOG_FATAL, "dict_open fail of %s", MATCH_DICT); + logf (LOG_FATAL, "dict_open fail of %s", GMATCH_DICT); exit (1); } assert (!records); @@ -463,29 +488,37 @@ static void addRecordKeyAny (const RecWord *p) addRecordKey (p); } -#define FILE_READ_BUFSIZE 4096 +#define FILE_READ_BUFSIZE 4096 + +static int file_noread; +#if FILE_READ_BUFSIZE static char *file_buf; static int file_offset; static int file_bufsize; -static int file_noread; +#endif static void file_read_start (int fd) { + file_noread = 0; +#if FILE_READ_BUFSIZE file_offset = 0; file_buf = xmalloc (FILE_READ_BUFSIZE); file_bufsize = read (fd, file_buf, FILE_READ_BUFSIZE); - file_noread = 0; +#endif } static void file_read_stop (int fd) { +#if FILE_READ_BUFSIZE xfree (file_buf); file_buf = NULL; +#endif } static int file_read (int fd, char *buf, size_t count) { +#if FILE_READ_BUFSIZE int l = file_bufsize - file_offset; if (count > l) @@ -494,7 +527,7 @@ static int file_read (int fd, char *buf, size_t count) if (l > 0) memcpy (buf, file_buf + file_offset, l); count = count-l; - if (count > file_bufsize) + if (count > FILE_READ_BUFSIZE) { if ((r = read (fd, buf + l, count)) == -1) { @@ -503,8 +536,8 @@ static int file_read (int fd, char *buf, size_t count) } file_bufsize = 0; file_offset = 0; - file_noread += r; - return r; + file_noread += l+r; + return l+r; } file_bufsize = r = read (fd, file_buf, FILE_READ_BUFSIZE); if (r == -1) @@ -516,8 +549,8 @@ static int file_read (int fd, char *buf, size_t count) { file_offset = r; memcpy (buf + l, file_buf, r); - file_noread += (l+r); - return l + r; + file_noread += l+r; + return l+r; } else { @@ -531,6 +564,13 @@ static int file_read (int fd, char *buf, size_t count) file_offset += count; file_noread += count; return count; +#else + int r; + r = read (fd, buf, count); + if (r > 0) + file_noread += r; + return r; +#endif } static int atois (const char **s) @@ -678,9 +718,7 @@ static char *fileMatchStr (struct recKeys *reckeys, struct recordGroup *rGroup, static int recordExtract (SYSNO *sysno, const char *fname, struct recordGroup *rGroup, int deleteFlag, - int fd, - RecType recType, - const char *subType) + int fd, RecType recType, char *subType) { struct recExtractCtrl extractCtrl; int r; @@ -692,7 +730,7 @@ static int recordExtract (SYSNO *sysno, const char *fname, { extractCtrl.fd = fd; /* extract keys */ - extractCtrl.subType = ""; + extractCtrl.subType = subType; extractCtrl.init = wordInit; extractCtrl.add = addRecordKeyAny; @@ -759,7 +797,7 @@ static int recordExtract (SYSNO *sysno, const char *fname, 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]); @@ -767,15 +805,15 @@ static int recordExtract (SYSNO *sysno, const char *fname, { if (!delkeys.buf_used) { - logf (LOG_WARN, "cannot delete %s - no delete keys", fname); + logf (LOG_WARN, "cannot delete %s: storeKeys false", + fname); } else { - SYSNO sysnoz = 0; logf (LOG_LOG, "delete %s %s", rGroup->recordType, fname); records_deleted++; if (matchStr) - dict_insert (matchDict, matchStr, sizeof(sysnoz), &sysnoz); + dict_delete (matchDict, matchStr); rec_del (records, &rec); } return 1; @@ -784,7 +822,7 @@ static int recordExtract (SYSNO *sysno, const char *fname, { if (!delkeys.buf_used) { - logf (LOG_WARN, "cannot update %s - no delete keys", + logf (LOG_WARN, "cannot update %s: storeKeys false", fname); } else @@ -823,9 +861,11 @@ static int recordExtract (SYSNO *sysno, const char *fname, { rec->size[recInfo_storeData] = file_noread; rec->info[recInfo_storeData] = xmalloc (file_noread); +#if FILE_READ_BUFSIZE if (file_noread < FILE_READ_BUFSIZE) memcpy (rec->info[recInfo_storeData], file_buf, file_noread); else +#endif { if (lseek (fd, 0L, SEEK_SET) < 0) {