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Another round of updates for new fmgr, mostly in the datetime code.

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This commit is contained in:
Tom Lane
2000-06-09 01:11:16 +00:00
parent 20ad43b576
commit ae526b4070
27 changed files with 2206 additions and 2007 deletions
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27
src/tutorial/beard.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/tutorial/Attic/beard.c,v 1.3 2000/01/26 05:58:51 momjian Exp $
* $Header: /cvsroot/pgsql/src/tutorial/Attic/beard.c,v 1.4 2000/06/09 01:11:16 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -34,7 +34,10 @@ beard(Oid picture)
char buf[BUFSIZE];
int cc;
if ((pic_fd = lo_open(picture, INV_READ)) == -1)
pic_fd = DatumGetInt32(DirectFunctionCall2(lo_open,
ObjectIdGetDatum(picture),
Int32GetDatum(INV_READ)));
if (pic_fd < 0)
elog(ERROR, "Cannot access picture large object");
if (lo_read(pic_fd, (char *) &ihdr, sizeof(ihdr)) != sizeof(ihdr))
@ -45,21 +48,31 @@ beard(Oid picture)
/*
* new large object
*/
if ((beard = lo_creat(INV_MD)) == 0) /* ?? is this right? */
beard = DatumGetObjectId(DirectFunctionCall1(lo_creat,
Int32GetDatum(INV_MD)));
if (beard == InvalidOid)
elog(ERROR, "Cannot create new large object");
if ((beard_fd = lo_open(beard, INV_WRITE)) == -1)
beard_fd = DatumGetInt32(DirectFunctionCall2(lo_open,
ObjectIdGetDatum(beard),
Int32GetDatum(INV_WRITE)));
if (beard_fd < 0)
elog(ERROR, "Cannot access beard large object");
lo_lseek(pic_fd, beardOffset, SET_CUR);
if (DatumGetInt32(DirectFunctionCall3(lo_lseek,
Int32GetDatum(pic_fd),
Int32GetDatum(beardOffset),
Int32GetDatum(SEEK_SET))) < 0)
elog(ERROR, "Cannot seek in picture large object");
while ((cc = lo_read(pic_fd, buf, BUFSIZE)) > 0)
{
if (lo_write(beard_fd, buf, cc) != cc)
elog(ERROR, "error while writing large object");
}
lo_close(pic_fd);
lo_close(beard_fd);
DirectFunctionCall1(lo_close, Int32GetDatum(pic_fd));
DirectFunctionCall1(lo_close, Int32GetDatum(beard_fd));
return beard;
}