1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef __handlers_h
18#define __handlers_h
19
20#define IObject struct Object_interface
21IObject;
22
23#ifdef __cplusplus
24extern "C" {
25#endif
26
27extern unsigned handler_MediaPlayer_gain(IObject *thiz);
28#ifdef ANDROID
29extern unsigned handler_MediaPlayer_transport(IObject *thiz);
30extern unsigned handler_MediaPlayer_position(IObject *thiz);
31extern unsigned handler_MediaPlayer_abq_enqueue(IObject *thiz);
32extern unsigned handler_MediaPlayer_play_state(IObject *thiz);
33extern unsigned handler_AudioPlayer_gain(IObject *thiz);
34extern unsigned handler_AudioPlayer_transport(IObject *thiz);
35extern unsigned handler_AudioPlayer_position(IObject *thiz);
36extern unsigned handler_AudioPlayer_bq_enqueue(IObject *thiz);
37extern unsigned handler_AudioPlayer_abq_enqueue(IObject *thiz);
38extern unsigned handler_AudioPlayer_play_state(IObject *thiz);
39extern unsigned handler_AudioRecorder_transport(IObject *thiz);
40extern unsigned handler_MidiPlayer_gain(IObject *thiz);
41extern unsigned handler_MidiPlayer_position(IObject *thiz);
42extern unsigned handler_OutputMix_gain(IObject *thiz);
43#else
44#define handler_MediaPlayer_gain        NULL
45#define handler_MediaPlayer_transport   NULL
46#define handler_MediaPlayer_position    NULL
47#define handler_MediaPlayer_abq_enqueue NULL
48#define handler_MediaPlayer_play_state  NULL
49#define handler_AudioPlayer_transport   NULL
50#define handler_AudioPlayer_position    NULL
51#define handler_AudioPlayer_bq_enqueue  NULL
52#define handler_AudioPlayer_abq_enqueue NULL
53#define handler_AudioPlayer_play_state  NULL
54#define handler_AudioRecorder_transport NULL
55#define handler_MidiPlayer_gain         NULL
56#define handler_MidiPlayer_position     NULL
57#define handler_OutputMix_gain          NULL
58#endif
59
60#ifdef __cplusplus
61}
62#endif
63
64
65/* Table entry for an attribute update handler.
66 *
67 * If the Object ID table index matches the object's ID, and the attribute table index
68 * match any of the updated attributes, then the specified handler
69 * is called.  The handler is called with the object's mutex locked,
70 * and should return with mutex locked.  The handler returns a bitmask of the attributes which
71 * were actually handled.  This is normally the same as the attribute index,
72 * but could be a subset (including 0) if the handler discovers that the
73 * update is too complex to be handled synchronously and so must
74 * be deferred to the sync thread.  Note that this direct lookup table organization
75 * gives O(1) search.
76 */
77
78typedef unsigned (*AttributeHandler)(IObject *thiz);
79
80extern const AttributeHandler handlerTable[][ATTR_INDEX_MAX];
81
82#undef IObject
83
84#endif // !defined(__handlers_h)
85