GTask: new GAsyncResult implementation / threaded task manager
[platform/upstream/glib.git] / gio / giotypes.h
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 #if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
24 #error "Only <gio/gio.h> can be included directly."
25 #endif
26
27 #ifndef __GIO_TYPES_H__
28 #define __GIO_TYPES_H__
29
30 #include <gio/gioenums.h>
31
32 G_BEGIN_DECLS
33
34 typedef struct _GAppLaunchContext             GAppLaunchContext;
35 typedef struct _GAppInfo                      GAppInfo; /* Dummy typedef */
36 typedef struct _GAsyncResult                  GAsyncResult; /* Dummy typedef */
37 typedef struct _GAsyncInitable                GAsyncInitable;
38 typedef struct _GBufferedInputStream          GBufferedInputStream;
39 typedef struct _GBufferedOutputStream         GBufferedOutputStream;
40 typedef struct _GCancellable                  GCancellable;
41 typedef struct _GCharsetConverter             GCharsetConverter;
42 typedef struct _GConverter                    GConverter;
43 typedef struct _GConverterInputStream         GConverterInputStream;
44 typedef struct _GConverterOutputStream        GConverterOutputStream;
45 typedef struct _GDataInputStream              GDataInputStream;
46 typedef struct _GSimplePermission             GSimplePermission;
47 typedef struct _GZlibCompressor               GZlibCompressor;
48 typedef struct _GZlibDecompressor             GZlibDecompressor;
49
50 typedef struct _GSimpleActionGroup            GSimpleActionGroup;
51 typedef struct _GRemoteActionGroup            GRemoteActionGroup;
52 typedef struct _GDBusActionGroup              GDBusActionGroup;
53 typedef struct _GActionMap                    GActionMap;
54 typedef struct _GActionGroup                  GActionGroup;
55 typedef struct _GSimpleAction                 GSimpleAction;
56 typedef struct _GAction                       GAction;
57 typedef struct _GApplication                  GApplication;
58 typedef struct _GApplicationCommandLine       GApplicationCommandLine;
59 typedef struct _GSettingsBackend              GSettingsBackend;
60 typedef struct _GSettings                     GSettings;
61 typedef struct _GPermission                   GPermission;
62
63 typedef struct _GMenuModel                    GMenuModel;
64
65 /**
66  * GDrive:
67  *
68  * Opaque drive object.
69  **/
70 typedef struct _GDrive                        GDrive; /* Dummy typedef */
71 typedef struct _GFileEnumerator               GFileEnumerator;
72 typedef struct _GFileMonitor                  GFileMonitor;
73 typedef struct _GFilterInputStream            GFilterInputStream;
74 typedef struct _GFilterOutputStream           GFilterOutputStream;
75
76 /**
77  * GFile:
78  *
79  * A handle to an object implementing the #GFileIface interface.
80  * Generally stores a location within the file system. Handles do not
81  * necessarily represent files or directories that currently exist.
82  **/
83 typedef struct _GFile                         GFile; /* Dummy typedef */
84 typedef struct _GFileInfo                     GFileInfo;
85
86 /**
87  * GFileAttributeMatcher:
88  *
89  * Determines if a string matches a file attribute.
90  **/
91 typedef struct _GFileAttributeMatcher         GFileAttributeMatcher;
92 typedef struct _GFileAttributeInfo            GFileAttributeInfo;
93 typedef struct _GFileAttributeInfoList        GFileAttributeInfoList;
94 typedef struct _GFileDescriptorBased          GFileDescriptorBased;
95 typedef struct _GFileInputStream              GFileInputStream;
96 typedef struct _GFileOutputStream             GFileOutputStream;
97 typedef struct _GFileIOStream                 GFileIOStream;
98 typedef struct _GFileIcon                     GFileIcon;
99 typedef struct _GFilenameCompleter            GFilenameCompleter;
100
101
102 typedef struct _GIcon                         GIcon; /* Dummy typedef */
103 typedef struct _GInetAddress                  GInetAddress;
104 typedef struct _GInetAddressMask              GInetAddressMask;
105 typedef struct _GInetSocketAddress            GInetSocketAddress;
106 typedef struct _GInputStream                  GInputStream;
107 typedef struct _GInitable                     GInitable;
108 typedef struct _GIOModule                     GIOModule;
109 typedef struct _GIOExtensionPoint             GIOExtensionPoint;
110 typedef struct _GIOExtension                  GIOExtension;
111
112 /**
113  * GIOSchedulerJob:
114  *
115  * Opaque class for defining and scheduling IO jobs.
116  **/
117 typedef struct _GIOSchedulerJob               GIOSchedulerJob;
118 typedef struct _GIOStreamAdapter              GIOStreamAdapter;
119 typedef struct _GLoadableIcon                 GLoadableIcon; /* Dummy typedef */
120 typedef struct _GMemoryInputStream            GMemoryInputStream;
121 typedef struct _GMemoryOutputStream           GMemoryOutputStream;
122
123 /**
124  * GMount:
125  *
126  * A handle to an object implementing the #GMountIface interface.
127  **/
128 typedef struct _GMount                        GMount; /* Dummy typedef */
129 typedef struct _GMountOperation               GMountOperation;
130 typedef struct _GNetworkAddress               GNetworkAddress;
131 typedef struct _GNetworkMonitor               GNetworkMonitor;
132 typedef struct _GNetworkService               GNetworkService;
133 typedef struct _GOutputStream                 GOutputStream;
134 typedef struct _GIOStream                     GIOStream;
135 typedef struct _GPollableInputStream          GPollableInputStream; /* Dummy typedef */
136 typedef struct _GPollableOutputStream         GPollableOutputStream; /* Dummy typedef */
137 typedef struct _GResolver                     GResolver;
138 /**
139  * GResource:
140  *
141  * A resource bundle.
142  *
143  * Since: 2.32
144  */
145 typedef struct _GResource                     GResource;
146 typedef struct _GSeekable                     GSeekable;
147 typedef struct _GSimpleAsyncResult            GSimpleAsyncResult;
148
149 /**
150  * GSocket:
151  *
152  * A lowlevel network socket object.
153  *
154  * Since: 2.22
155  **/
156 typedef struct _GSocket                       GSocket;
157
158 /**
159  * GSocketControlMessage:
160  *
161  * Base class for socket-type specific control messages that can be sent and
162  * received over #GSocket.
163  **/
164 typedef struct _GSocketControlMessage         GSocketControlMessage;
165 /**
166  * GSocketClient:
167  *
168  * A helper class for network clients to make connections.
169  *
170  * Since: 2.22
171  **/
172 typedef struct _GSocketClient                               GSocketClient;
173 /**
174  * GSocketConnection:
175  *
176  * A socket connection GIOStream object for connection-oriented sockets.
177  *
178  * Since: 2.22
179  **/
180 typedef struct _GSocketConnection                           GSocketConnection;
181 /**
182  * GSocketListener:
183  *
184  * A helper class for network servers to listen for and accept connections.
185  *
186  * Since: 2.22
187  **/
188 typedef struct _GSocketListener                             GSocketListener;
189 /**
190  * GSocketService:
191  *
192  * A helper class for handling accepting incomming connections in the
193  * glib mainloop.
194  *
195  * Since: 2.22
196  **/
197 typedef struct _GSocketService                              GSocketService;
198 typedef struct _GSocketAddress                GSocketAddress;
199 typedef struct _GSocketAddressEnumerator      GSocketAddressEnumerator;
200 typedef struct _GSocketConnectable            GSocketConnectable;
201 typedef struct _GSrvTarget                    GSrvTarget;
202 typedef struct _GTask                         GTask;
203 /**
204  * GTcpConnection:
205  *
206  * A #GSocketConnection for TCP/IP connections.
207  *
208  * Since: 2.22
209  **/
210 typedef struct _GTcpConnection                              GTcpConnection;
211 typedef struct _GTcpWrapperConnection                       GTcpWrapperConnection;
212 /**
213  * GThreadedSocketService:
214  *
215  * A helper class for handling accepting incoming connections in the
216  * glib mainloop and handling them in a thread.
217  *
218  * Since: 2.22
219  **/
220 typedef struct _GThreadedSocketService                      GThreadedSocketService;
221 typedef struct _GThemedIcon                   GThemedIcon;
222 typedef struct _GTlsCertificate               GTlsCertificate;
223 typedef struct _GTlsClientConnection          GTlsClientConnection; /* Dummy typedef */
224 typedef struct _GTlsConnection                GTlsConnection;
225 typedef struct _GTlsDatabase                  GTlsDatabase;
226 typedef struct _GTlsFileDatabase              GTlsFileDatabase;
227 typedef struct _GTlsInteraction               GTlsInteraction;
228 typedef struct _GTlsPassword                  GTlsPassword;
229 typedef struct _GTlsServerConnection          GTlsServerConnection; /* Dummy typedef */
230 typedef struct _GVfs                          GVfs; /* Dummy typedef */
231
232 /**
233  * GProxyResolver:
234  *
235  * A helper class to enumerate proxies base on URI.
236  *
237  * Since: 2.26
238  **/
239 typedef struct _GProxyResolver                GProxyResolver;
240 typedef struct _GProxy                        GProxy;
241 typedef struct _GProxyAddress                 GProxyAddress;
242 typedef struct _GProxyAddressEnumerator       GProxyAddressEnumerator;
243
244 /**
245  * GVolume:
246  *
247  * Opaque mountable volume object.
248  **/
249 typedef struct _GVolume                       GVolume; /* Dummy typedef */
250 typedef struct _GVolumeMonitor                GVolumeMonitor;
251
252 /**
253  * GAsyncReadyCallback:
254  * @source_object: the object the asynchronous operation was started with.
255  * @res: a #GAsyncResult.
256  * @user_data: user data passed to the callback.
257  *
258  * Type definition for a function that will be called back when an asynchronous
259  * operation within GIO has been completed.
260  **/
261 typedef void (*GAsyncReadyCallback) (GObject *source_object,
262                                      GAsyncResult *res,
263                                      gpointer user_data);
264
265 /**
266  * GFileProgressCallback:
267  * @current_num_bytes: the current number of bytes in the operation.
268  * @total_num_bytes: the total number of bytes in the operation.
269  * @user_data: user data passed to the callback.
270  *
271  * When doing file operations that may take a while, such as moving
272  * a file or copying a file, a progress callback is used to pass how
273  * far along that operation is to the application.
274  **/
275 typedef void (*GFileProgressCallback) (goffset current_num_bytes,
276                                        goffset total_num_bytes,
277                                        gpointer user_data);
278
279 /**
280  * GFileReadMoreCallback:
281  * @file_contents: the data as currently read.
282  * @file_size: the size of the data currently read.
283  * @callback_data: data passed to the callback.
284  *
285  * When loading the partial contents of a file with g_file_load_partial_contents_async(),
286  * it may become necessary to determine if any more data from the file should be loaded.
287  * A #GFileReadMoreCallback function facilitates this by returning %TRUE if more data
288  * should be read, or %FALSE otherwise.
289  *
290  * Returns: %TRUE if more data should be read back. %FALSE otherwise.
291  **/
292 typedef gboolean (* GFileReadMoreCallback) (const char *file_contents,
293                                             goffset file_size,
294                                             gpointer callback_data);
295
296
297 /**
298  * GIOSchedulerJobFunc:
299  * @job: a #GIOSchedulerJob.
300  * @cancellable: optional #GCancellable object, %NULL to ignore.
301  * @user_data: the data to pass to callback function
302  *
303  * I/O Job function.
304  *
305  * Long-running jobs should periodically check the @cancellable
306  * to see if they have been cancelled.
307  *
308  * Returns: %TRUE if this function should be called again to
309  *    complete the job, %FALSE if the job is complete (or cancelled)
310  **/
311 typedef gboolean (*GIOSchedulerJobFunc) (GIOSchedulerJob *job,
312                                          GCancellable    *cancellable,
313                                          gpointer         user_data);
314
315 /**
316  * GSimpleAsyncThreadFunc:
317  * @res: a #GSimpleAsyncResult.
318  * @object: a #GObject.
319  * @cancellable: optional #GCancellable object, %NULL to ignore.
320  *
321  * Simple thread function that runs an asynchronous operation and
322  * checks for cancellation.
323  **/
324 typedef void (*GSimpleAsyncThreadFunc) (GSimpleAsyncResult *res,
325                                         GObject *object,
326                                         GCancellable *cancellable);
327
328 /**
329  * GSocketSourceFunc:
330  * @socket: the #GSocket
331  * @condition: the current condition at the source fired.
332  * @user_data: data passed in by the user.
333  *
334  * This is the function type of the callback used for the #GSource
335  * returned by g_socket_create_source().
336  *
337  * Returns: it should return %FALSE if the source should be removed.
338  *
339  * Since: 2.22
340  */
341 typedef gboolean (*GSocketSourceFunc) (GSocket *socket,
342                                        GIOCondition condition,
343                                        gpointer user_data);
344
345 /**
346  * GInputVector:
347  * @buffer: Pointer to a buffer where data will be written.
348  * @size: the available size in @buffer.
349  *
350  * Structure used for scatter/gather data input.
351  * You generally pass in an array of #GInputVector<!-- -->s
352  * and the operation will store the read data starting in the
353  * first buffer, switching to the next as needed.
354  *
355  * Since: 2.22
356  */
357 typedef struct _GInputVector GInputVector;
358
359 struct _GInputVector {
360   gpointer buffer;
361   gsize size;
362 };
363
364 /**
365  * GOutputVector:
366  * @buffer: Pointer to a buffer of data to read.
367  * @size: the size of @buffer.
368  *
369  * Structure used for scatter/gather data output.
370  * You generally pass in an array of #GOutputVector<!-- -->s
371  * and the operation will use all the buffers as if they were
372  * one buffer.
373  *
374  * Since: 2.22
375  */
376 typedef struct _GOutputVector GOutputVector;
377
378 struct _GOutputVector {
379   gconstpointer buffer;
380   gsize size;
381 };
382
383 typedef struct _GCredentials                  GCredentials;
384 typedef struct _GUnixCredentialsMessage       GUnixCredentialsMessage;
385 typedef struct _GUnixFDList                   GUnixFDList;
386 typedef struct _GDBusMessage                  GDBusMessage;
387 typedef struct _GDBusConnection               GDBusConnection;
388 typedef struct _GDBusProxy                    GDBusProxy;
389 typedef struct _GDBusMethodInvocation         GDBusMethodInvocation;
390 typedef struct _GDBusServer                   GDBusServer;
391 typedef struct _GDBusAuthObserver             GDBusAuthObserver;
392 typedef struct _GDBusErrorEntry               GDBusErrorEntry;
393 typedef struct _GDBusInterfaceVTable          GDBusInterfaceVTable;
394 typedef struct _GDBusSubtreeVTable            GDBusSubtreeVTable;
395 typedef struct _GDBusAnnotationInfo           GDBusAnnotationInfo;
396 typedef struct _GDBusArgInfo                  GDBusArgInfo;
397 typedef struct _GDBusMethodInfo               GDBusMethodInfo;
398 typedef struct _GDBusSignalInfo               GDBusSignalInfo;
399 typedef struct _GDBusPropertyInfo             GDBusPropertyInfo;
400 typedef struct _GDBusInterfaceInfo            GDBusInterfaceInfo;
401 typedef struct _GDBusNodeInfo                 GDBusNodeInfo;
402
403 /**
404  * GCancellableSourceFunc:
405  * @cancellable: the #GCancellable
406  * @user_data: data passed in by the user.
407  *
408  * This is the function type of the callback used for the #GSource
409  * returned by g_cancellable_source_new().
410  *
411  * Returns: it should return %FALSE if the source should be removed.
412  *
413  * Since: 2.28
414  */
415 typedef gboolean (*GCancellableSourceFunc) (GCancellable *cancellable,
416                                             gpointer      user_data);
417
418 /**
419  * GPollableSourceFunc:
420  * @pollable_stream: the #GPollableInputStream or #GPollableOutputStream
421  * @user_data: data passed in by the user.
422  *
423  * This is the function type of the callback used for the #GSource
424  * returned by g_pollable_input_stream_create_source() and
425  * g_pollable_output_stream_create_source().
426  *
427  * Returns: it should return %FALSE if the source should be removed.
428  *
429  * Since: 2.28
430  */
431 typedef gboolean (*GPollableSourceFunc) (GObject  *pollable_stream,
432                                          gpointer  user_data);
433
434 typedef struct _GDBusInterface              GDBusInterface; /* Dummy typedef */
435 typedef struct _GDBusInterfaceSkeleton      GDBusInterfaceSkeleton;
436 typedef struct _GDBusObject                 GDBusObject;  /* Dummy typedef */
437 typedef struct _GDBusObjectSkeleton         GDBusObjectSkeleton;
438 typedef struct _GDBusObjectProxy            GDBusObjectProxy;
439 typedef struct _GDBusObjectManager          GDBusObjectManager;  /* Dummy typedef */
440 typedef struct _GDBusObjectManagerClient    GDBusObjectManagerClient;
441 typedef struct _GDBusObjectManagerServer    GDBusObjectManagerServer;
442
443 /**
444  * GDBusProxyTypeFunc:
445  * @manager: A #GDBusObjectManagerClient.
446  * @object_path: The object path of the remote object.
447  * @interface_name: (allow-none): The interface name of the remote object or %NULL if a #GDBusObjectProxy #GType is requested.
448  * @user_data: User data.
449  *
450  * Function signature for a function used to determine the #GType to
451  * use for an interface proxy (if @interface_name is not %NULL) or
452  * object proxy (if @interface_name is %NULL).
453  *
454  * This function is called in the
455  * <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
456  * that @manager was constructed in.
457  *
458  * Returns: A #GType to use for the remote object. The returned type
459  *   must be a #GDBusProxy<!-- -->- or #GDBusObjectProxy<!-- -->-derived
460  *   type.
461  *
462  * Since: 2.30
463  */
464 typedef GType (*GDBusProxyTypeFunc) (GDBusObjectManagerClient   *manager,
465                                      const gchar                *object_path,
466                                      const gchar                *interface_name,
467                                      gpointer                    user_data);
468
469 typedef struct _GTestDBus GTestDBus;
470
471 G_END_DECLS
472
473 #endif /* __GIO_TYPES_H__ */