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/platform/assert.h"
20 #include "chre/platform/static_nanoapp_init.h"
21 #include "chre/util/nanoapp/app_id.h"
22 #include "chre/util/nanoapp/log.h"
23 #include "chre/util/system/napp_permissions.h"
24 #include "chre_api/chre.h"
25
26 /**
27 * @file
28 * A nanoapp exclusively for testing, which sends a constant stream of messages
29 * and events. Must only be compiled as a static/internal nanoapp.
30 */
31
32 namespace chre {
33 namespace {
34
35 constexpr uint32_t kMessageType = 1234;
36 uint8_t gMessageData[] = {1, 2, 3, 4, 5, 6, 7, 8};
37 bool gRunning = false;
38 uint64_t gTotalEventCount = 0;
39
40 constexpr uint16_t kMessageSentEvent = CHRE_EVENT_FIRST_USER_VALUE;
41 constexpr uint16_t kRepeatedEvent = kMessageSentEvent + 1;
42 constexpr uint16_t kEmptyEvent = kRepeatedEvent + 2;
43
44 void *kMessageSentEventData = reinterpret_cast<void *>(0x100);
45 void *kRepeatedEventData = reinterpret_cast<void *>(0x200);
46
messageSentEventFreeCallback(uint16_t eventType,void * data)47 void messageSentEventFreeCallback(uint16_t eventType, void *data) {
48 CHRE_ASSERT(gRunning);
49 CHRE_ASSERT(eventType == kMessageSentEvent);
50 CHRE_ASSERT(data == kMessageSentEventData);
51 }
52
messageFreeCallback(void * message,size_t messageSize)53 void messageFreeCallback(void *message, size_t messageSize) {
54 CHRE_ASSERT(gRunning);
55 if (!chreSendEvent(kMessageSentEvent, kMessageSentEventData,
56 messageSentEventFreeCallback, chreGetInstanceId())) {
57 LOGE("Couldn't send event from message free callback");
58 }
59 }
60
repeatedEventFreeCallback(uint16_t eventType,void * data)61 void repeatedEventFreeCallback(uint16_t eventType, void *data) {
62 CHRE_ASSERT(gRunning);
63 CHRE_ASSERT(eventType == kRepeatedEvent);
64 CHRE_ASSERT(data == kRepeatedEventData);
65 }
66
nanoappStart()67 bool nanoappStart() {
68 gRunning = true;
69 LOGI("Spammer started as instance %" PRIu32, chreGetInstanceId());
70
71 if (!chreSendMessageToHostEndpoint(gMessageData, sizeof(gMessageData),
72 kMessageType, CHRE_HOST_ENDPOINT_BROADCAST,
73 messageFreeCallback)) {
74 LOGE("Couldn't send message from start callback");
75 }
76
77 if (!chreSendEvent(kRepeatedEvent, kRepeatedEventData,
78 repeatedEventFreeCallback, chreGetInstanceId())) {
79 LOGE("Couldn't send first repeated event");
80 }
81 if (!chreSendEvent(kEmptyEvent, nullptr, nullptr, chreGetInstanceId())) {
82 LOGE("Couldn't send first empty event");
83 }
84
85 return true;
86 }
87
nanoappHandleEvent(uint32_t senderInstanceId,uint16_t eventType,const void * eventData)88 void nanoappHandleEvent(uint32_t senderInstanceId, uint16_t eventType,
89 const void *eventData) {
90 CHRE_ASSERT(gRunning);
91 gTotalEventCount++;
92 if (eventType == kMessageSentEvent) {
93 CHRE_ASSERT(eventData == kMessageSentEventData);
94 if (!chreSendMessageToHostEndpoint(
95 gMessageData, sizeof(gMessageData), kMessageType,
96 CHRE_HOST_ENDPOINT_BROADCAST, messageFreeCallback)) {
97 // Note: commented out to prevent logspam because Linux simulator
98 // currently always returns false
99 // LOGE("Couldn't send message");
100 }
101 } else if (eventType == kRepeatedEvent) {
102 CHRE_ASSERT(eventData == kRepeatedEventData);
103 if (!chreSendEvent(kRepeatedEvent, kRepeatedEventData,
104 repeatedEventFreeCallback, chreGetInstanceId())) {
105 LOGE("Couldn't send repeated event");
106 }
107 } else if (eventType == kEmptyEvent) {
108 CHRE_ASSERT(eventData == nullptr);
109 if (!chreSendEvent(kEmptyEvent, nullptr, nullptr, chreGetInstanceId())) {
110 LOGE("Couldn't send empty event");
111 }
112 }
113 }
114
nanoappEnd()115 void nanoappEnd() {
116 LOGI("Stopped - handled %" PRIu64 " total events", gTotalEventCount);
117 gRunning = false;
118 }
119
120 } // anonymous namespace
121 } // namespace chre
122
123 CHRE_STATIC_NANOAPP_INIT(Spammer, chre::kSpammerAppId, 0,
124 chre::NanoappPermissions::CHRE_PERMS_NONE);
125