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/* -*-c-*- --------------- mix_io.c :
* Implementation of the functions declared in mix_io.h
* ------------------------------------------------------------------
* Copyright (C) 2000, 2004, 2006, 2007 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "xmix_io.h"
mix_iochannel_t *
mix_io_new (FILE *file)
{
mix_iochannel_t *result;
g_return_val_if_fail (file != NULL, NULL);
result = g_new (mix_iochannel_t, 1);
result->file = file;
return result;
}
void
mix_io_delete (mix_iochannel_t *ch)
{
if (ch != NULL)
{
fclose (ch->file);
g_free (ch);
}
}
FILE *
mix_io_to_FILE (mix_iochannel_t *ioc)
{
if (ioc == NULL) return NULL;
return ioc->file;
}
gboolean
mix_io_eof (mix_iochannel_t *ioc)
{
if (ioc == NULL) return TRUE;
return is_eof_ (ioc);
}
gboolean
mix_io_is_ready (mix_iochannel_t *ioc)
{
if (ioc == NULL) return FALSE;
return is_ready_ (ioc);
}
gboolean
mix_io_write_byte (mix_iochannel_t *ioc, mix_byte_t b)
{
if (ioc == NULL) return FALSE;
return write_data_ (ioc, &b, 1);
}
gboolean
mix_io_write_byte_array (mix_iochannel_t *ioc, const mix_byte_t *b,
size_t s)
{
if (ioc == NULL || b == NULL) return FALSE;
return write_data_ (ioc, b, s);
}
mix_byte_t
mix_io_read_byte (mix_iochannel_t *ioc)
{
mix_byte_t result = MIX_BYTE_ZERO;
if (ioc != NULL) (void)read_data_ (ioc, &result, 1);
return result;
}
gboolean
mix_io_read_byte_array (mix_iochannel_t *ioc, mix_byte_t *b, size_t s)
{
return (ioc != NULL) && (b != NULL) && read_data_ (ioc, b, s);
}
gboolean
mix_io_write_word (mix_iochannel_t *ioc, mix_word_t w)
{
return (ioc != NULL) && write_data_ (ioc, &w, 1);
}
gboolean
mix_io_write_word_array (mix_iochannel_t *ioc, const mix_word_t *w,
size_t s)
{
return (ioc != NULL) && (w != NULL) && write_data_ (ioc, w, s);
}
mix_word_t
mix_io_read_word (mix_iochannel_t *ioc)
{
mix_word_t result = MIX_WORD_ZERO;
if (ioc != NULL) (void)read_data_ (ioc, &result, 1);
return result;
}
gboolean
mix_io_read_word_array (mix_iochannel_t *ioc, mix_word_t *w, size_t s)
{
return (ioc != NULL) && (w != NULL) && read_data_ (ioc, w, s);
}
gboolean
mix_io_write_short (mix_iochannel_t *ioc, mix_short_t w)
{
return (ioc != NULL) && write_data_ (ioc, &w, 1);
}
gboolean
mix_io_write_short_array (mix_iochannel_t *ioc, const mix_short_t *w,
size_t s)
{
return (ioc != NULL) && (w != NULL) && write_data_ (ioc, w, s);
}
mix_short_t
mix_io_read_short (mix_iochannel_t *ioc)
{
mix_short_t result = MIX_SHORT_ZERO;
if (ioc != NULL) (void)read_data_ (ioc, &result, 1);
return result;
}
gboolean
mix_io_read_short_array (mix_iochannel_t *ioc, mix_short_t *w, size_t s)
{
return (ioc != NULL) && (w != NULL) && read_data_ (ioc, w, s);
}
gboolean
mix_io_write_char (mix_iochannel_t *ioc, mix_char_t c)
{
guchar value = mix_char_to_ascii (c);
return (ioc != NULL) && write_data_ (ioc, &value, 1);
}
mix_char_t
mix_io_read_char (mix_iochannel_t *ioc)
{
guchar value = MIX_CHAR_MAX;
if (ioc != NULL) (void)read_data_ (ioc, &value, 1);
return mix_ascii_to_char (value);
}
gboolean
mix_io_write_word_array_as_char (mix_iochannel_t *ioc,
const mix_word_t *w, size_t s)
{
guint k, j;
guchar value;
if ((ioc == NULL) || (w == NULL)) return FALSE;
for (k = 0; k < s; k++)
for (j = 1; j < 6; j++)
{
mix_char_t ch = mix_byte_to_char (mix_word_get_byte (w[k], j));
value = mix_char_to_ascii (ch);
if (!write_data_ (ioc, &value, 1)) return FALSE;
}
value = '\n';
return write_data_ (ioc, &value, 1);
}
gboolean
mix_io_read_word_array_as_char (mix_iochannel_t *ioc,
mix_word_t *w, size_t s)
{
guint k, j;
guchar value;
gboolean eol = FALSE;
mix_char_t spc = mix_ascii_to_char (' ');
if ((ioc == NULL) || (w == NULL)) return FALSE;
for (k = 0; k < s && !eol; k++)
for (j = 1; j < 6; j++)
{
if (!eol && !read_data_ (ioc, &value, 1)) return FALSE;
eol = eol || (value == '\n') || is_eof_ (ioc);
mix_word_set_byte (&w[k], j, eol? spc : mix_ascii_to_char (value));
}
for (; k < s; ++k) w[k] = MIX_WORD_ZERO;
while (!eol && !is_eof_ (ioc) && value != '\n')
if (!read_data_ (ioc, &value, 1)) return FALSE;
return TRUE;
}
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