1/* GIO - GLib Input, Output and Streaming Library
2 *
3 * Copyright (C) 2006-2007 Red Hat, Inc.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General
16 * Public License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
18 * Boston, MA 02111-1307, USA.
19 *
20 * Author: Alexander Larsson <alexl@redhat.com>
21 */
22
23#include "config.h"
24#include <errno.h>
25#include "gioerror.h"
26
27#include "gioalias.h"
28
29/**
30 * SECTION:gioerror
31 * @short_description: Error helper functions
32 * @include: gio/gio.h
33 *
34 * Contains helper functions for reporting errors to the user.
35 **/
36
37/**
38 * g_io_error_quark:
39 *
40 * Gets the GIO Error Quark.
41 *
42 * Return value: a #GQuark.
43 **/
44GQuark
45g_io_error_quark (void)
46{
47  return g_quark_from_static_string ("g-io-error-quark");
48}
49
50/**
51 * g_io_error_from_errno:
52 * @err_no: Error number as defined in errno.h.
53 *
54 * Converts errno.h error codes into GIO error codes.
55 *
56 * Returns: #GIOErrorEnum value for the given errno.h error number.
57 **/
58GIOErrorEnum
59g_io_error_from_errno (gint err_no)
60{
61  switch (err_no)
62    {
63#ifdef EEXIST
64    case EEXIST:
65      return G_IO_ERROR_EXISTS;
66      break;
67#endif
68
69#ifdef EISDIR
70    case EISDIR:
71      return G_IO_ERROR_IS_DIRECTORY;
72      break;
73#endif
74
75#ifdef EACCES
76    case EACCES:
77      return G_IO_ERROR_PERMISSION_DENIED;
78      break;
79#endif
80
81#ifdef ENAMETOOLONG
82    case ENAMETOOLONG:
83      return G_IO_ERROR_FILENAME_TOO_LONG;
84      break;
85#endif
86
87#ifdef ENOENT
88    case ENOENT:
89      return G_IO_ERROR_NOT_FOUND;
90      break;
91#endif
92
93#ifdef ENOTDIR
94    case ENOTDIR:
95      return G_IO_ERROR_NOT_DIRECTORY;
96      break;
97#endif
98
99#ifdef EROFS
100    case EROFS:
101      return G_IO_ERROR_READ_ONLY;
102      break;
103#endif
104
105#ifdef ELOOP
106    case ELOOP:
107      return G_IO_ERROR_TOO_MANY_LINKS;
108      break;
109#endif
110
111#ifdef ENOSPC
112    case ENOSPC:
113      return G_IO_ERROR_NO_SPACE;
114      break;
115#endif
116
117#ifdef ENOMEM
118    case ENOMEM:
119      return G_IO_ERROR_NO_SPACE;
120      break;
121#endif
122
123#ifdef EINVAL
124    case EINVAL:
125      return G_IO_ERROR_INVALID_ARGUMENT;
126      break;
127#endif
128
129#ifdef EPERM
130    case EPERM:
131      return G_IO_ERROR_PERMISSION_DENIED;
132      break;
133#endif
134
135#ifdef ECANCELED
136    case ECANCELED:
137      return G_IO_ERROR_CANCELLED;
138      break;
139#endif
140
141#if defined(ENOTEMPTY) && (!defined (EEXIST) || (ENOTEMPTY != EEXIST))
142    case ENOTEMPTY:
143      return G_IO_ERROR_NOT_EMPTY;
144      break;
145#endif
146
147#ifdef ENOTSUP
148    case ENOTSUP:
149      return G_IO_ERROR_NOT_SUPPORTED;
150      break;
151#endif
152
153#ifdef ETIMEDOUT
154    case ETIMEDOUT:
155      return G_IO_ERROR_TIMED_OUT;
156      break;
157#endif
158
159#ifdef EBUSY
160    case EBUSY:
161      return G_IO_ERROR_BUSY;
162      break;
163#endif
164
165/* some magic to deal with EWOULDBLOCK and EAGAIN.
166 * apparently on HP-UX these are actually defined to different values,
167 * but on Linux, for example, they are the same.
168 */
169#if defined(EWOULDBLOCK) && defined(EAGAIN) && EWOULDBLOCK == EAGAIN
170    /* we have both and they are the same: only emit one case. */
171    case EAGAIN:
172      return G_IO_ERROR_WOULD_BLOCK;
173      break;
174#else
175    /* else: consider each of them separately.  this handles both the
176     * case of having only one and the case where they are different values.
177     */
178# ifdef EAGAIN
179    case EAGAIN:
180      return G_IO_ERROR_WOULD_BLOCK;
181      break;
182# endif
183
184# ifdef EWOULDBLOCK
185    case EWOULDBLOCK:
186      return G_IO_ERROR_WOULD_BLOCK;
187      break;
188# endif
189#endif
190
191#ifdef EMFILE
192    case EMFILE:
193      return G_IO_ERROR_TOO_MANY_OPEN_FILES;
194      break;
195#endif
196
197    default:
198      return G_IO_ERROR_FAILED;
199      break;
200    }
201}
202
203#define __G_IO_ERROR_C__
204#include "gioaliasdef.c"
205