1 /*
2  * Copyright (C) 2016 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 _GTS_NANOAPPS_GENERAL_TEST_HEAP_EXHAUSTION_STABILITY_TEST_H_
18 #define _GTS_NANOAPPS_GENERAL_TEST_HEAP_EXHAUSTION_STABILITY_TEST_H_
19 
20 #include <general_test/test.h>
21 
22 namespace general_test {
23 
24 /**
25  * Exhaust the heap and confirm the platform remains stable when trying
26  * various things.
27  *
28  * We don't require everything to be available when the heap is exhausted,
29  * but we do require the system is honest about its capabilities, and doesn't
30  * crash.
31  *
32  * Simple Protocol.
33  */
34 class HeapExhaustionStabilityTest : public Test {
35  public:
36   HeapExhaustionStabilityTest();
37 
38  protected:
39   void handleEvent(uint32_t senderInstanceId, uint16_t eventType,
40                    const void* eventData) override;
41   void setUp(uint32_t messageSize, const void *message) override;
42 
43  private:
44   bool mInMethod;
45 
46   void **mExhaustionPtrs;
47   size_t mExhaustionPtrCount;
48 
49   static constexpr size_t kStageCount = 2;
50   static constexpr uint32_t kAllFinished = (1 << kStageCount) - 1;
51   uint32_t mFinishedBitmask;
52 
53   void exhaustHeap();
54   void freeMemory();
55 
56   void testLog(uint32_t zero);
57   void testSetTimer();
58   void testSendEvent();
59   void testSensor();
60   // TODO(b/32114261): This method currently doesn't test anything.
61   void testMessageToHost();
62 
63   void handleTimer(uint32_t senderInstanceId, const void *eventData);
64   void handleSelfEvent(uint32_t senderInstanceId, const void *eventData);
65 
66   void markSuccess(uint32_t stage);
67 };
68 
69 }  // namespace general_test
70 
71 
72 #endif  // _GTS_NANOAPPS_GENERAL_TEST_HEAP_EXHAUSTION_STABILITY_TEST_H_
73