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05d7f76296
* libguile/ports-internal.h (struct scm_port_internal): Add 'alist' member. * libguile/ports.c (scm_i_port_alist, scm_i_set_port_alist_x): New internal functions. (scm_i_port_weak_hash): Update comment: the hash table is no longer used to store the port's alist. (scm_new_port_table_entry): Initialize 'alist'. Store SCM_BOOL_F in the port weak hash, not SCM_EOL. * libguile/ports.h (scm_i_port_alist, scm_i_set_port_alist_x): Add protoypes. * libguile/read.c (set_port_read_option, init_read_options): Access the port's alist via 'scm_i_port_alist' and 'scm_i_set_port_alist_x'.
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/*
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* ports-internal.h - internal-only declarations for ports.
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*
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* Copyright (C) 2013 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#ifndef SCM_PORTS_INTERNAL
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#define SCM_PORTS_INTERNAL
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#include "libguile/_scm.h"
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#include "libguile/ports.h"
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enum scm_port_encoding_mode {
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SCM_PORT_ENCODING_MODE_UTF8,
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SCM_PORT_ENCODING_MODE_ICONV
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};
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typedef enum scm_port_encoding_mode scm_t_port_encoding_mode;
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/* This is a separate object so that only those ports that use iconv
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cause finalizers to be registered (FIXME: although currently in 2.0
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finalizers are always registered for ports anyway). */
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struct scm_iconv_descriptors
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{
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/* input/output iconv conversion descriptors */
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void *input_cd;
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void *output_cd;
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};
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typedef struct scm_iconv_descriptors scm_t_iconv_descriptors;
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struct scm_port_internal
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{
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scm_t_port_encoding_mode encoding_mode;
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scm_t_iconv_descriptors *iconv_descriptors;
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SCM alist;
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};
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typedef struct scm_port_internal scm_t_port_internal;
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#define SCM_PORT_GET_INTERNAL(x) \
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((scm_t_port_internal *) (SCM_PTAB_ENTRY(x)->input_cd))
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SCM_INTERNAL scm_t_iconv_descriptors *scm_i_port_iconv_descriptors (SCM port);
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#endif
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