mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 03:40:34 +02:00
cd51ce81d0
This removes a limitation on the number of port types, simplifies the API, and removes a central point of coordination. * libguile/ports-internal.h (struct scm_t_port_type): Rename from scm_t_ptob_descriptor, now that it's private. Add GOOPS class fields. (struct scm_t_port): Rename from struct scm_port, especially considering that deprecated.h redefines scm_port using the preprocessor :(. * libguile/ports.h: Add definitions of SCM_PORT and SCM_PORT_TYPE, though the scm_t_port and scm_t_port_type types are incomplete. (SCM_TC2PTOBNUM, SCM_PTOBNUM, SCM_PTOBNAME): Remove, as there are no more typecodes for port types. (scm_c_num_port_types, scm_c_port_type_ref, scm_c_port_type_add_x): Remove. (scm_make_port_type): Return a scm_t_port_type*. All methods adapted to take a scm_t_port_type* instead of a ptobnum. (scm_c_make_port_with_encoding, scm_c_make_port): Take a port type pointer instead of a tag. (scm_new_port_table_entry): Remove; not useful. * libguile/ports.c: Remove things related to the port kind table. Adapt uses of SCM_PORT_DESCRIPTOR / scm_t_ptob_descriptor to use SCM_PORT_TYPE and scm_t_port_type. * libguile/deprecated.c: * libguile/deprecated.h: * libguile/filesys.c: * libguile/fports.c: * libguile/fports.h: * libguile/print.c: * libguile/r6rs-ports.c: * libguile/strports.c: * libguile/strports.h: * libguile/tags.h: * libguile/vports.c: * test-suite/standalone/test-scm-c-read.c: Adapt to change. * libguile/goops.c (scm_class_of, make_port_classes) (scm_make_port_classes, create_port_classes): Adapt to store the classes in the ptob.
84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
/* 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_port_type *scm_file_port_type;
|
||
|
||
#define SCM_FSTREAM(x) ((scm_t_fport *) SCM_STREAM (x))
|
||
#define SCM_FPORT_FDES(x) (SCM_FSTREAM (x)->fdes)
|
||
|
||
#define SCM_FPORTP(x) \
|
||
(SCM_PORTP (x) && SCM_PORT_TYPE (x) == scm_file_port_type)
|
||
#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 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:
|
||
*/
|