1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/* -*-c-*- -------------- mix_device.c :
* Implementation of the functions declared in mix_device.h
* ------------------------------------------------------------------
* Copyright (C) 2000, 2001, 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 "mix_file.h"
#include "xmix_device.h"
/*
Set the directory for mix device files (by default, it's ".")
If the dir does not exist, it is created.
*/
gboolean
mix_device_set_dir (const gchar *dirname)
{
if (mix_stat_dir (dirname, "devices"))
{
if (DEV_DIR_) g_free (DEV_DIR_);
DEV_DIR_ = g_strdup (dirname);
return TRUE;
}
else
return FALSE;
}
const gchar *
mix_device_get_dir (void)
{
return DEV_DIR_;
}
mix_device_t *
mix_device_new (mix_device_type_t type)
{
mix_device_t *result = NULL;
g_return_val_if_fail (type < mix_dev_INVALID, NULL);
result = g_new (mix_device_t, 1);
construct_device_ (result, type);
return result;
}
mix_device_t *
mix_device_new_with_name (mix_device_type_t type, const gchar *name)
{
mix_device_t *result = NULL;
g_return_val_if_fail (name != NULL, NULL);
g_return_val_if_fail (type < mix_dev_INVALID, NULL);
result = g_new (mix_device_t, 1);
construct_device_with_name_ (result, type, name);
return result;
}
/*
Create a new device with a given type and stream
*/
mix_device_t *
mix_device_new_with_file (mix_device_type_t type, FILE *file)
{
mix_device_t *result = NULL;
g_return_val_if_fail (file != NULL, NULL);
g_return_val_if_fail (type < mix_dev_INVALID, NULL);
result = g_new (mix_device_t, 1);
construct_device_with_file_ (result, type, file);
return result;
}
void
mix_device_delete (mix_device_t *dev)
{
if (dev != NULL)
{
(dev->vtable->destroy) (dev);
g_free (dev);
}
}
mix_device_type_t
mix_device_type (const mix_device_t *dev)
{
g_return_val_if_fail (dev != NULL, mix_dev_INVALID);
return dev->type;
}
const char *
mix_device_get_name (const mix_device_t *dev)
{
g_return_val_if_fail (dev != NULL, NULL);
return mix_file_base_name(GET_FILE_(dev));
}
/*
Get the device block size
*/
size_t
mix_device_block_size (const mix_device_t *dev)
{
g_return_val_if_fail (dev != NULL, 0);
return SIZES_[dev->type];
}
/*
Get the device io mode
*/
mix_device_mode_t
mix_device_mode (const mix_device_t *dev)
{
g_return_val_if_fail (dev != NULL, 0);
return MODES_[dev->type];
}
/*
Write a block to the device.
*/
gboolean
mix_device_write (mix_device_t *dev, const mix_word_t *block)
{
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (block != NULL, FALSE);
g_assert (dev->vtable != NULL);
return (dev->vtable->write) (dev, block);
}
gboolean
mix_device_read (mix_device_t *dev, mix_word_t *block)
{
g_return_val_if_fail (dev != NULL, FALSE);
g_return_val_if_fail (block != NULL, FALSE);
g_assert (dev->vtable != NULL);
return (dev->vtable->read) (dev, block);
}
gboolean
mix_device_ioc (mix_device_t *dev, mix_short_t arg)
{
g_return_val_if_fail (dev != NULL, FALSE);
g_assert (dev->vtable != NULL);
return (dev->vtable->ioc) (dev, arg);
}
gboolean
mix_device_busy (const mix_device_t *dev)
{
g_return_val_if_fail (dev != NULL, FALSE);
return (dev->vtable->busy) (dev);
}
|
