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guile/libguile/fports.h
Mark H Weaver f6f4feb0a2 Merge remote-tracking branch 'origin/stable-2.0'
Conflicts:
	GUILE-VERSION
	libguile/array-map.c
	libguile/fports.h
	libguile/gc.h
	libguile/inline.h
	libguile/ports.c
	libguile/ports.h
	libguile/print.c
	libguile/r6rs-ports.c
	libguile/read.c
	test-suite/tests/00-socket.test
2013-04-14 02:48:33 -04:00

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/* classes: h_files */
#ifndef SCM_FPORTS_H
#define SCM_FPORTS_H
/* Copyright (C) 1995,1996,1997,1998,1999,2000,2001, 2006, 2008, 2009, 2011, 2012 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include "libguile/__scm.h"
#include "libguile/ports.h"
/* struct allocated for each buffered FPORT. */
typedef struct scm_t_fport {
int fdes; /* file descriptor. */
int revealed; /* 0 not revealed, > 1 revealed.
* Revealed ports do not get GC'd.
*/
} scm_t_fport;
SCM_API scm_t_bits scm_tc16_fport;
#define SCM_FSTREAM(x) ((scm_t_fport *) SCM_STREAM (x))
#define SCM_FPORT_FDES(x) (SCM_FSTREAM (x)->fdes)
#define SCM_FPORTP(x) (SCM_HAS_TYP16 (x, scm_tc16_fport))
#define SCM_OPFPORTP(x) (SCM_FPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_OPN))
#define SCM_OPINFPORTP(x) (SCM_OPFPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_RDNG))
#define SCM_OPOUTFPORTP(x) (SCM_OPFPORTP (x) && (SCM_CELL_WORD_0 (x) & SCM_WRTNG))
/* test whether fdes supports random access. */
#define SCM_FDES_RANDOM_P(fdes) ((lseek (fdes, 0, SEEK_CUR) == -1) ? 0 : 1)
SCM_API SCM scm_setbuf0 (SCM port);
SCM_API SCM scm_setvbuf (SCM port, SCM mode, SCM size);
SCM_API void scm_evict_ports (int fd);
SCM_API SCM scm_open_file_with_encoding (SCM filename, SCM modes,
SCM guess_encoding, SCM encoding);
SCM_API SCM scm_open_file (SCM filename, SCM modes);
SCM_API SCM scm_fdes_to_port (int fdes, char *mode, SCM name);
SCM_API SCM scm_file_port_p (SCM obj);
/* Revealed counts. */
SCM_API int scm_revealed_count (SCM port);
SCM_API SCM scm_port_revealed (SCM port);
SCM_API SCM scm_set_port_revealed_x (SCM port, SCM rcount);
SCM_API SCM scm_adjust_port_revealed_x (SCM port, SCM addend);
SCM_INTERNAL void scm_init_fports_keywords (void);
SCM_INTERNAL void scm_init_fports (void);
/* internal functions */
SCM_INTERNAL SCM scm_i_fdes_to_port (int fdes, long mode_bits, SCM name);
#endif /* SCM_FPORTS_H */
/*
Local Variables:
c-file-style: "gnu"
End:
*/