-/* Copyright (C) 2009, 2010
- Free Software Foundation, Inc.
+/* Copyright (C) 2009-2015 Free Software Foundation, Inc.
Contributed by Janne Blomqvist
This file is part of the GNU Fortran runtime library (libgfortran).
#include "io.h"
-
-struct stream
+struct stream_vtable
{
- ssize_t (*read) (struct stream *, void *, ssize_t);
- ssize_t (*write) (struct stream *, const void *, ssize_t);
- gfc_offset (*seek) (struct stream *, gfc_offset, int);
- gfc_offset (*tell) (struct stream *);
- gfc_offset (*size) (struct stream *);
+ ssize_t (* const read) (struct stream *, void *, ssize_t);
+ ssize_t (* const write) (struct stream *, const void *, ssize_t);
+ gfc_offset (* const seek) (struct stream *, gfc_offset, int);
+ gfc_offset (* const tell) (struct stream *);
+ gfc_offset (* const size) (struct stream *);
/* Avoid keyword truncate due to AIX namespace collision. */
- int (*trunc) (struct stream *, gfc_offset);
- int (*flush) (struct stream *);
- int (*close) (struct stream *);
+ int (* const trunc) (struct stream *, gfc_offset);
+ int (* const flush) (struct stream *);
+ int (* const close) (struct stream *);
+ int (* const markeor) (struct stream *);
};
+struct stream
+{
+ const struct stream_vtable *vptr;
+};
/* Inline functions for doing file I/O given a stream. */
static inline ssize_t
sread (stream * s, void * buf, ssize_t nbyte)
{
- return s->read (s, buf, nbyte);
+ return s->vptr->read (s, buf, nbyte);
}
static inline ssize_t
swrite (stream * s, const void * buf, ssize_t nbyte)
{
- return s->write (s, buf, nbyte);
+ return s->vptr->write (s, buf, nbyte);
}
static inline gfc_offset
sseek (stream * s, gfc_offset offset, int whence)
{
- return s->seek (s, offset, whence);
+ return s->vptr->seek (s, offset, whence);
}
static inline gfc_offset
stell (stream * s)
{
- return s->tell (s);
+ return s->vptr->tell (s);
}
static inline gfc_offset
ssize (stream * s)
{
- return s->size (s);
+ return s->vptr->size (s);
}
static inline int
struncate (stream * s, gfc_offset length)
{
- return s->trunc (s, length);
+ return s->vptr->trunc (s, length);
}
static inline int
sflush (stream * s)
{
- return s->flush (s);
+ return s->vptr->flush (s);
}
static inline int
sclose (stream * s)
{
- return s->close (s);
+ return s->vptr->close (s);
+}
+
+static inline int
+smarkeor (stream * s)
+{
+ return s->vptr->markeor (s);
}
extern int stream_ttyname (stream *, char *, size_t);
internal_proto(stream_ttyname);
-extern int unpack_filename (char *, const char *, int);
-internal_proto(unpack_filename);
-
-
#endif