File: gvfsjob.c

package info (click to toggle)
gvfs 1.30.4-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 22,580 kB
  • ctags: 12,211
  • sloc: ansic: 113,948; sh: 4,957; xml: 2,353; makefile: 1,601; python: 1,448; sed: 16
file content (326 lines) | stat: -rw-r--r-- 7,032 bytes parent folder | download | duplicates (2)
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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
/* GIO - GLib Input, Output and Streaming Library
 * 
 * Copyright (C) 2006-2007 Red Hat, 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 2 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.
 *
 * Author: Alexander Larsson <alexl@redhat.com>
 */

#include <config.h>

#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>

#include <glib.h>
#include <glib/gi18n.h>
#include <gio/gio.h>
#include "gvfsjob.h"
#include "gvfsjobsource.h"

G_DEFINE_TYPE (GVfsJob, g_vfs_job, G_TYPE_OBJECT)

/* TODO: Real P_() */
#define P_(_x) (_x)

enum {
  PROP_0
};

enum {
  CANCELLED,
  SEND_REPLY,
  FINISHED,
  NEW_SOURCE,
  LAST_SIGNAL
};

struct _GVfsJobPrivate
{
  int dummy;
};

static guint signals[LAST_SIGNAL] = { 0 };

static void g_vfs_job_get_property (GObject    *object,
				    guint       prop_id,
				    GValue     *value,
				    GParamSpec *pspec);
static void g_vfs_job_set_property (GObject         *object,
				    guint            prop_id,
				    const GValue    *value,
				    GParamSpec      *pspec);

static void
g_vfs_job_finalize (GObject *object)
{
  GVfsJob *job;

  job = G_VFS_JOB (object);

  if (job->error)
    g_error_free (job->error);

  if (job->backend_data_destroy)
    job->backend_data_destroy (job->backend_data);

  g_object_unref (job->cancellable);
  
  if (G_OBJECT_CLASS (g_vfs_job_parent_class)->finalize)
    (*G_OBJECT_CLASS (g_vfs_job_parent_class)->finalize) (object);
}

static void
g_vfs_job_class_init (GVfsJobClass *klass)
{
  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);

  g_type_class_add_private (klass, sizeof (GVfsJobPrivate));
  
  gobject_class->finalize = g_vfs_job_finalize;
  gobject_class->set_property = g_vfs_job_set_property;
  gobject_class->get_property = g_vfs_job_get_property;

  signals[CANCELLED] =
    g_signal_new ("cancelled",
		  G_TYPE_FROM_CLASS (gobject_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GVfsJobClass, cancelled),
		  NULL, NULL,
		  g_cclosure_marshal_VOID__VOID,
		  G_TYPE_NONE, 0);
  signals[FINISHED] =
    g_signal_new ("finished",
		  G_TYPE_FROM_CLASS (gobject_class),
		  G_SIGNAL_RUN_FIRST,
		  G_STRUCT_OFFSET (GVfsJobClass, finished),
		  NULL, NULL,
		  g_cclosure_marshal_VOID__VOID,
		  G_TYPE_NONE, 0);
  signals[NEW_SOURCE] =
    g_signal_new ("new-source",
		  G_TYPE_FROM_CLASS (gobject_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GVfsJobClass, new_source),
		  NULL, NULL,
		  g_cclosure_marshal_VOID__OBJECT,
		  G_TYPE_NONE, 1, G_VFS_TYPE_JOB_SOURCE);
  signals[SEND_REPLY] =
    g_signal_new ("send-reply",
		  G_TYPE_FROM_CLASS (gobject_class),
		  G_SIGNAL_RUN_LAST,
		  G_STRUCT_OFFSET (GVfsJobClass, send_reply),
		  NULL, NULL,
		  g_cclosure_marshal_VOID__VOID,
		  G_TYPE_NONE, 0);
}

static void
g_vfs_job_init (GVfsJob *job)
{
  job->priv = G_TYPE_INSTANCE_GET_PRIVATE (job, G_VFS_TYPE_JOB, GVfsJobPrivate);

  job->cancellable = g_cancellable_new ();
  
}

void
g_vfs_job_set_backend_data (GVfsJob     *job,
			    gpointer     backend_data,
			    GDestroyNotify destroy)
{
  if (job->backend_data_destroy)
    {
      job->backend_data_destroy (job->backend_data);
    }
    
  job->backend_data = backend_data;
  job->backend_data_destroy = destroy;
}

static void
g_vfs_job_set_property (GObject         *object,
			guint            prop_id,
			const GValue    *value,
			GParamSpec      *pspec)
{
  switch (prop_id)
    {
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

static void
g_vfs_job_get_property (GObject    *object,
			guint       prop_id,
			GValue     *value,
			GParamSpec *pspec)
{
  switch (prop_id)
    {
    default:
      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
      break;
    }
}

void
g_vfs_job_run (GVfsJob *job)
{
  GVfsJobClass *class;

  class = G_VFS_JOB_GET_CLASS (job);

  /* Ensure that the job lives durint the whole
   * lifetime of the call, as it may disappear when
   * we call g_vfs_job_succeed/fail()
   */
  g_object_ref (job);
  
  class->run (job);
  
  g_object_unref (job);
}

gboolean
g_vfs_job_try (GVfsJob *job)
{
  GVfsJobClass *class;
  gboolean res;

  class = G_VFS_JOB_GET_CLASS (job);
  
  /* Ensure that the job lives during the whole
   * lifetime of the call, as it may disappear when
   * we call g_vfs_job_succeed/fail()
   */
  g_object_ref (job);
  res = class->try (job);
  g_object_unref (job);

  return res;
}

void
g_vfs_job_cancel (GVfsJob *job)
{
  if (job->cancelled || job->finished)
    return;

  job->cancelled = TRUE;
  g_signal_emit (job, signals[CANCELLED], 0);
  g_cancellable_cancel (job->cancellable);
}

static void 
g_vfs_job_send_reply (GVfsJob *job)
{
  job->sent_reply = TRUE;
  g_signal_emit (job, signals[SEND_REPLY], 0);
}

void
g_vfs_job_failed (GVfsJob *job,
		  GQuark         domain,
		  gint           code,
		  const gchar   *format,
		  ...)
{
  va_list args;
  char *message;

  va_start (args, format);
  message = g_strdup_vprintf (format, args);
  va_end (args);

  g_vfs_job_failed_literal (job, domain, code, message);
  g_free (message);
}

void
g_vfs_job_failed_literal (GVfsJob *job,
                          GQuark        domain,
                          gint          code,
                          const gchar  *message)
{
  if (job->failed)
    return;

  job->failed = TRUE;

  job->error = g_error_new_literal (domain, code, message);

  g_vfs_job_send_reply (job);
}

void
g_vfs_job_failed_from_error (GVfsJob *     job,
			     const GError *error)
{
  if (job->failed)
    return;

  job->failed = TRUE;
  job->error = g_error_copy (error);
  g_vfs_job_send_reply (job);
}

void
g_vfs_job_failed_from_errno (GVfsJob     *job,
			     gint         errno_arg)
{
  GError *error = NULL;
  
  g_set_error_literal (&error, G_IO_ERROR,
		       g_io_error_from_errno (errno_arg),
		       g_strerror (errno_arg));
  g_vfs_job_failed_from_error (job, error);
  g_error_free (error);
}

void
g_vfs_job_succeeded (GVfsJob *job)
{
  job->failed = FALSE;
  g_vfs_job_send_reply (job);
}


gboolean
g_vfs_job_is_finished (GVfsJob *job)
{
  return job->finished;
}

gboolean
g_vfs_job_is_cancelled (GVfsJob *job)
{
  return job->cancelled;
}

/* Might be called on an i/o thread */
void
g_vfs_job_emit_finished (GVfsJob *job)
{
  g_assert (!job->finished);
  
  job->finished = TRUE;
  g_signal_emit (job, signals[FINISHED], 0);
}