ProCameraTests.cpp revision 5376573eff55f370f041889618c9a7a9e1894615 
1/*
2 * Copyright (C) 2013 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#include <gtest/gtest.h>
18#include <iostream>
19
20#include <binder/IPCThreadState.h>
21#include <utils/Thread.h>
22
23#include "Camera.h"
24#include "ProCamera.h"
25#include <utils/Vector.h>
26#include <utils/Mutex.h>
27#include <utils/Condition.h>
28
29namespace android {
30namespace camera2 {
31namespace tests {
32namespace client {
33
34#define CAMERA_ID 0
35#define TEST_DEBUGGING 0
36
37#define TEST_LISTENER_TIMEOUT 2000000000 // 2 second listener timeout
38
39#if TEST_DEBUGGING
40#define dout std::cerr
41#else
42#define dout if (0) std::cerr
43#endif
44
45enum LockEvent {
46    UNKNOWN,
47    ACQUIRED,
48    RELEASED,
49    STOLEN
50};
51
52typedef Vector<LockEvent> EventList;
53
54class ProCameraTestThread : public Thread
55{
56public:
57    ProCameraTestThread() {
58    }
59
60    virtual bool threadLoop() {
61        mProc = ProcessState::self();
62        mProc->startThreadPool();
63
64        IPCThreadState *ptr = IPCThreadState::self();
65
66        dout << "will join thread pool" << std::endl;
67        ptr->joinThreadPool();
68        dout << "joined thread pool (done)" << std::endl;
69
70        return false;
71    }
72
73    sp<ProcessState> mProc;
74};
75
76class ProCameraTestListener : public ProCameraListener {
77
78public:
79    status_t WaitForEvent() {
80        Mutex::Autolock cal(mConditionMutex);
81
82        {
83            Mutex::Autolock al(mListenerMutex);
84
85            if (mLockEventList.size() > 0) {
86                return OK;
87            }
88        }
89
90        return mListenerCondition.waitRelative(mConditionMutex,
91                                               TEST_LISTENER_TIMEOUT);
92    }
93
94    /* Read events into out. Existing queue is flushed */
95    void ReadEvents(EventList& out) {
96        Mutex::Autolock al(mListenerMutex);
97
98        for (size_t i = 0; i < mLockEventList.size(); ++i) {
99            out.push(mLockEventList[i]);
100        }
101
102        mLockEventList.clear();
103    }
104
105    /**
106      * Dequeue 1 event from the event queue.
107      * Returns UNKNOWN if queue is empty
108      */
109    LockEvent ReadEvent() {
110        Mutex::Autolock al(mListenerMutex);
111
112        if (mLockEventList.size() == 0) {
113            return UNKNOWN;
114        }
115
116        LockEvent ev = mLockEventList[0];
117        mLockEventList.removeAt(0);
118
119        return ev;
120    }
121
122private:
123    void QueueEvent(LockEvent ev) {
124        {
125            Mutex::Autolock al(mListenerMutex);
126            mLockEventList.push(ev);
127        }
128
129
130        mListenerCondition.broadcast();
131    }
132
133protected:
134
135    //////////////////////////////////////////////////
136    ///////// ProCameraListener //////////////////////
137    //////////////////////////////////////////////////
138
139
140    // Lock has been acquired. Write operations now available.
141    virtual void onLockAcquired() {
142        QueueEvent(ACQUIRED);
143    }
144    // Lock has been released with exclusiveUnlock
145    virtual void onLockReleased() {
146        QueueEvent(RELEASED);
147    }
148
149    // Lock has been stolen by another client.
150    virtual void onLockStolen() {
151        QueueEvent(STOLEN);
152    }
153
154    // Lock free.
155    virtual void onTriggerNotify(int32_t ext1, int32_t ext2, int32_t ext3) {
156
157        dout << "Trigger notify: " << ext1 << " " << ext2
158             << " " << ext3 << std::endl;
159    }
160
161    // TODO: remove
162
163    virtual void notify(int32_t , int32_t , int32_t ) {}
164    virtual void postData(int32_t , const sp<IMemory>& ,
165                          camera_frame_metadata_t *) {}
166    virtual void postDataTimestamp(nsecs_t , int32_t , const sp<IMemory>& ) {}
167
168
169    Vector<LockEvent> mLockEventList;
170    Mutex             mListenerMutex;
171    Mutex             mConditionMutex;
172    Condition         mListenerCondition;
173};
174
175class ProCameraTest : public ::testing::Test {
176
177public:
178    ProCameraTest() {
179    }
180
181    virtual void SetUp() {
182        mTestThread = new ProCameraTestThread();
183        mTestThread->run("ProCameraTestThread");
184
185        mCamera = ProCamera::connect(CAMERA_ID);
186        ASSERT_NE((void*)NULL, mCamera.get());
187
188        mListener = new ProCameraTestListener();
189        mCamera->setListener(mListener);
190    }
191
192    virtual void TearDown() {
193        ASSERT_NE((void*)NULL, mCamera.get());
194        mCamera->disconnect();
195    }
196
197protected:
198    sp<ProCamera> mCamera;
199    sp<ProCameraTestListener> mListener;
200
201    sp<Thread> mTestThread;
202
203};
204
205TEST_F(ProCameraTest, LockingImmediate) {
206
207    if (HasFatalFailure()) {
208        return;
209    }
210
211
212    EXPECT_FALSE(mCamera->hasExclusiveLock());
213    EXPECT_EQ(OK, mCamera->exclusiveTryLock());
214
215    EXPECT_EQ(OK, mListener->WaitForEvent());
216    EXPECT_EQ(ACQUIRED, mListener->ReadEvent());
217
218    EXPECT_TRUE(mCamera->hasExclusiveLock());
219    EXPECT_EQ(OK, mCamera->exclusiveUnlock());
220
221    EXPECT_EQ(OK, mListener->WaitForEvent());
222    EXPECT_EQ(RELEASED, mListener->ReadEvent());
223
224    EXPECT_FALSE(mCamera->hasExclusiveLock());
225}
226
227}
228}
229}
230}
231
232