int
main (int iArgc, char **ppcArgv)
{
int iResult,
iLoop,
iLoop2,
iLoop3,
iHandle;
unsigned char
cRecord [256];
struct keydesc
sKeydesc;
char cLogfileName [100],
cCommand [100];
char cFileName [] = "IsamTest";
memset (&sKeydesc, 0, sizeof (sKeydesc));
sKeydesc.k_flags = COMPRESS;
sKeydesc.k_nparts = 1;
sKeydesc.k_start = 0;
sKeydesc.k_leng = 2;
sKeydesc.k_type = CHARTYPE;
if (iArgc == 1) {
printf ("Usage:\n\t%s create\nOR\n\t%s <#iterations>\n", ppcArgv [0], ppcArgv [0]);
exit (1);
}
if (iArgc > 1 && strcmp (ppcArgv [1], "create") == 0) {
iserase (cFileName);
iHandle = isbuild (cFileName, 255, &sKeydesc, ISINOUT+ISFIXLEN+ISEXCLLOCK);
if (iHandle < 0) {
printf ("Error creating database: %d\n", iserrno);
exit (-1);
}
sKeydesc.k_flags |= ISDUPS;
sKeydesc.k_start = 3;
sKeydesc.k_leng = 4;
for (sKeydesc.k_start = 1; sKeydesc.k_start < 2; sKeydesc.k_start++) {
if (isaddindex (iHandle, &sKeydesc)) {
printf ("Error %d adding index %d\n", iserrno, sKeydesc.k_start);
}
}
isclose (iHandle);
sprintf (cLogfileName, "RECOVER");
#ifdef _WIN32
sprintf (cCommand, "del /f /q %s", cLogfileName);
#else
sprintf (cCommand, "rm -f %s; touch %s", cLogfileName, cLogfileName);
#endif
system (cCommand);
return (0);
}
sprintf (cLogfileName, "RECOVER");
#ifdef _WIN32
iResult = open("RECOVER", O_CREAT | O_TRUNC | O_RDWR | O_BINARY, 0666);
#else
iResult = open("RECOVER", O_CREAT | O_TRUNC | O_RDWR, 0666);
#endif
close(iResult);
iResult = islogopen (cLogfileName);
if (iResult < 0) {
printf ("Error opening log: %d\n", iserrno);
exit (-1);
}
/*
srand (time (NULL));
*/
srand (9);
for (iLoop = 0; iLoop < atoi (ppcArgv [1]); iLoop++)
{
if (!(iLoop % 100)) {
printf ("iLoop=%d\n", iLoop);
fflush(stdout);
}
iVBDlCount = 0;
iVBRdCount = 0;
iVBUpCount = 0;
iVBWrCount = 0;
iResult = isbegin ();
if (iResult < 0) {
printf ("Error begin transaction: %d\n", iserrno);
exit (-1);
}
iHandle = isopen (cFileName, ISINOUT+ISFIXLEN+ISTRANS+ISAUTOLOCK);
if (iHandle < 0) {
printf ("Error opening database: %d\n", iserrno);
exit (-1);
}
for (iLoop2 = 0; iLoop2 < 100; iLoop2++)
{
for (iLoop3 = 0; iLoop3 < 256; iLoop3++) {
cRecord [iLoop3] = rand () % 256;
}
iResult =rand () % 4;
/*
fprintf(stderr, "I %d\n", iResult);
*/
switch (iResult) {
case 0:
if ((iResult = iswrite (iHandle, (char *) cRecord)) != 0) {
if (iserrno != EDUPL && iserrno != ELOCKED) {
printf ("Error writing: %d\n", iserrno);
goto err;
}
} else {
iVBWrCount++;
}
break;
case 1:
if ((iResult = isread (iHandle, (char *)cRecord, ISEQUAL)) != 0) {
if (iserrno == ELOCKED) {
; /* printf ("Locked during deletion\n"); */
} else if (iserrno != ENOREC) {
printf ("Error reading: %d\n", iserrno);
goto err;
}
} else {
iVBRdCount++;
}
break;
case 2:
for (iLoop3 = 0; iLoop3 < 256; iLoop3++) {
cRecord [iLoop3] = rand () % 256;
}
if ((iResult = isrewrite (iHandle, (char *)cRecord)) != 0) {
if (iserrno == ELOCKED) {
; /* printf ("Locked during rewrite\n"); */
} else if (iserrno != ENOREC) {
printf ("Error rewriting: %d\n", iserrno);
goto err;
}
} else {
iVBUpCount++;
}
break;
case 3:
if ((iResult = isdelete (iHandle, (char *)cRecord)) != 0) {
if (iserrno == ELOCKED) {
; /* printf ("Locked during deletion\n"); */
} else if (iserrno != ENOREC) {
printf ("Error deleting: %d\n", iserrno);
goto err;
}
}
else
iVBDlCount++;
break;
}
}
iResult = isflush (iHandle);
if (iResult < 0) {
printf ("Error flush: %d\n", iserrno);
exit (-1);
}
iResult = isclose (iHandle);
if (iResult < 0) {
printf ("Error closing database: %d\n", iserrno);
exit (-1);
}
iVBDlTotal += iVBDlCount;
iVBRdTotal += iVBRdCount;
iVBUpTotal += iVBUpCount;
iVBWrTotal += iVBWrCount;
switch (rand () % 2) {
case 0:
iVBDlCommit += iVBDlCount;
iVBRdCommit += iVBRdCount;
iVBUpCommit += iVBUpCount;
iVBWrCommit += iVBWrCount;
iResult = iscommit ();
if (iResult < 0) {
printf ("Error commit: %d\n", iserrno);
exit (-1);
}
break;
case 1:
iResult = isrollback ();
if (iResult < 0) {
if (iserrno == EDUPL || iserrno == ENOREC) {
printf ("Same BUG (%d) as in C-ISAM!\n", iserrno);
} else {
printf ("Error rollback: %d\n", iserrno);
exit (-1);
}
}
break;
}
}
err:
printf (" Total Commited\n");
printf (" -------- --------\n");
printf ("Delete Count: %8d %8d\n", iVBDlTotal, iVBDlCommit);
printf ("Read Count: %8d %8d\n", iVBRdTotal, iVBRdCommit);
printf ("Update Count: %8d %8d\n", iVBUpTotal, iVBUpCommit);
printf ("Write Count: %8d %8d\n", iVBWrTotal, iVBWrCommit);
printf (" -------- --------\n");
printf ("OPS OVERALL : %8d %8d\n", (iVBDlTotal + iVBRdTotal + iVBUpTotal + iVBWrTotal), (iVBDlCommit + iVBRdCommit + iVBUpCommit + iVBWrCommit));
printf (" ========\n");
printf ("ROWS ADDED THIS RUN: %8d\n", (iVBWrCommit - iVBDlCommit));
printf (" ========\n");
return (iResult);
}
/*
//
// ISAM rewrite
//
*/
int tcob_rewrite_idx(struct file_desc *f, struct fld_desc *rectofrom_desc, char *rectofrom_buf,
struct fld_desc *reclen_desc, char *reclen_buf)
{
int iresult, r=0, reclen;
tcb_fileio_vbidx_handle *h;
char *crecord;
#ifdef DEBUG_FILEISAM_RTS7
fprintf(stderr, "debug : tcob_rewrite_idx 100.080 : \n");
#endif
/* ERROR check : File is open */
if (f->dbp == NULL)
RETURN_STATUS(49);
/* ERROR check : Record length is valid - unknown error */
if (f->reclen == -1)
RETURN_STATUS(99);
/* ERROR check : Must in IO mode */
if (f->open_mode != TCB_FILE_OPEN_MODE_IO)
RETURN_STATUS(49);
/* Check that we didn't already hit eof */
if ((f->open_mode == TCB_FILE_OPEN_MODE_IO) && f->flags.eof_hit)
RETURN_STATUS(43);
/* Error check : If access mode is SEQUENTIAL the read done flag must be set to TRUE */
if ((f->access_mode == TCB_FILE_ACCESS_MODE_SEQUENTIAL) &&
(f->flags.read_done == 0))
RETURN_STATUS(39);
h = (tcb_fileio_vbidx_handle *)f->dbp;
crecord = h->buf->buf[0];
/* Error check : Access mode SEQUENTIAL and primary KEY */
/* The PREVIOUS READ primary KEY must be equal to primary KEY in record */
if (f->access_mode == TCB_FILE_ACCESS_MODE_SEQUENTIAL) {
int sresult, startpos, poslen;
tcob_file_key *k;
k = f->keys;
startpos = k->offset;
poslen = k->key_desc->len;
/* Compare keys */
sresult = strncmp(crecord+startpos, f->record+startpos, poslen);
if (sresult != 0)
RETURN_STATUS(30);
}
/* Variable length record */
if (reclen_desc != NULL) {
/* Convert record to int type */
tcob_move(reclen_desc, reclen_buf, &_generic_4binary, (char *)&reclen);
if (reclen > f->reclen)
RETURN_STATUS(99);
isreclen = reclen;
}
else {
reclen = f->reclen;
}
/* Copy write buffer data to record and FROM identifier buffer */
if (rectofrom_desc != NULL) {
memset(f->record, ' ', f->reclen);
if (rectofrom_desc->len > f->reclen)
memcpy(f->record, rectofrom_buf, f->reclen);
else
memcpy(f->record, rectofrom_buf, rectofrom_desc->len);
}
memcpy(crecord, f->record, reclen);
/* rewrite record */
iresult = isrewrite(h->ifilehandle, crecord);
/* Set return code depending on VB iserrno */
if (iresult != 0)
r = tcob_eisam2ecob(0);
#ifdef DEBUG_FILEISAM_RTS7
fprintf(stderr, "debug : tcob_rewrite_idx 100.080 : file status(r)=%d, iserrno=%d\n", r, iserrno);
#endif
f->flags.read_done = 0;
f->flags.start_record = 0;
RETURN_STATUS(r);
}
