1 /*
2 * Copyright (C) 2017 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 <cinttypes>
18
19 #include "chre_api/chre.h"
20 #include "chre/core/event_loop.h"
21 #include "chre/core/event_loop_manager.h"
22 #include "chre/platform/assert.h"
23 #include "chre/platform/log.h"
24 #include "chre/platform/static_nanoapp_init.h"
25 #include "chre/util/nanoapp/app_id.h"
26 #include "chre/util/time.h"
27
28 /**
29 * @file
30 * A nanoapp exclusively for testing, which unloads the spammer nanoapp after a
31 * short delay. Must only be compiled as a static/internal nanoapp.
32 */
33
34 namespace chre {
35 namespace {
36
37 constexpr uint32_t kAppVersion = 99;
38
handleUnload(uint16_t,void *)39 void handleUnload(uint16_t /* eventType */, void * /* data */) {
40 EventLoop& eventLoop = EventLoopManagerSingleton::get()->getEventLoop();
41 uint32_t instanceId;
42
43 LOGD("About to unload spammer nanoapp");
44 if (!eventLoop.findNanoappInstanceIdByAppId(kSpammerAppId, &instanceId)) {
45 LOGE("Couldn't unload nanoapp: not found");
46 } else if (!eventLoop.unloadNanoapp(instanceId, true)) {
47 LOGE("Failed to unload nanoapp");
48 }
49 }
50
nanoappStart()51 bool nanoappStart() {
52 LOGI("Unload tester started as instance %" PRIu32, chreGetInstanceId());
53
54 constexpr uint64_t kTimerDuration = Seconds(2).toRawNanoseconds();
55 uint32_t timerHandle = chreTimerSet(kTimerDuration,
56 nullptr, true /* oneShot */);
57 CHRE_ASSERT_LOG(timerHandle != CHRE_TIMER_INVALID, "Couldn't start timer!");
58
59 bool eventSent = chreSendEvent(CHRE_EVENT_FIRST_USER_VALUE, nullptr, nullptr,
60 chreGetInstanceId());
61 CHRE_ASSERT_LOG(eventSent, "Couldn't send event to self!");
62
63 struct chreNanoappInfo info;
64 bool gotInfo = chreGetNanoappInfoByInstanceId(chreGetInstanceId(), &info);
65 CHRE_ASSERT(gotInfo);
66 CHRE_ASSERT(info.appId == chreGetAppId());
67 CHRE_ASSERT(info.appId == kUnloadTesterAppId);
68 CHRE_ASSERT(info.version == kAppVersion);
69 CHRE_ASSERT(info.instanceId == chreGetInstanceId());
70
71 chreConfigureNanoappInfoEvents(true);
72 return true;
73 }
74
nanoappHandleEvent(uint32_t senderInstanceId,uint16_t eventType,const void * eventData)75 void nanoappHandleEvent(uint32_t senderInstanceId,
76 uint16_t eventType,
77 const void *eventData) {
78 if (eventType == CHRE_EVENT_FIRST_USER_VALUE
79 && senderInstanceId == chreGetInstanceId()) {
80 struct chreNanoappInfo info;
81 if (!chreGetNanoappInfoByAppId(kSpammerAppId, &info)) {
82 LOGW("Couldn't get spammer's app info - not running?");
83 }
84 } else if (eventType == CHRE_EVENT_TIMER) {
85 // We can't do the unload from the context of another nanoapp's handle
86 // event callback, so get into the system context
87 if (!EventLoopManagerSingleton::get()->deferCallback(
88 SystemCallbackType::HandleUnloadNanoapp, nullptr, handleUnload)) {
89 LOGE("Couldn't defer callback");
90 }
91 } else if (eventType == CHRE_EVENT_NANOAPP_STARTED
92 || eventType == CHRE_EVENT_NANOAPP_STOPPED) {
93 const auto *info = static_cast<const chreNanoappInfo *>(eventData);
94 if (info->appId == kSpammerAppId) {
95 LOGD("Received %s event for spammer instance %" PRIu32,
96 (eventType == CHRE_EVENT_NANOAPP_STARTED) ? "start" : "stop",
97 info->instanceId);
98 }
99 }
100 }
101
nanoappEnd()102 void nanoappEnd() {}
103
104 } // anonymous namespace
105 } // namespace chre
106
107 CHRE_STATIC_NANOAPP_INIT(UnloadTester, chre::kUnloadTesterAppId, kAppVersion);
108