diff options
Diffstat (limited to 'src/tutorial/beard.c')
| -rw-r--r-- | src/tutorial/beard.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/src/tutorial/beard.c b/src/tutorial/beard.c index 4cde661ae2..bdbcc74659 100644 --- a/src/tutorial/beard.c +++ b/src/tutorial/beard.c @@ -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; } |