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/macros.h"
22 #include "chre/util/nanoapp/app_id.h"
23 #include "chre/util/nanoapp/log.h"
24 #include "chre/util/system/napp_permissions.h"
25 #include "chre_api/chre.h"
26
27 /**
28 * @file
29 * A nanoapp exclusively for testing, which sends a constant stream of messages
30 * and events. Must only be compiled as a static/internal nanoapp.
31 */
32
33 namespace chre {
34 namespace {
35
36 constexpr uint32_t kMessageType = 1234;
37 uint8_t gMessageData[] = {1, 2, 3, 4, 5, 6, 7, 8};
38 bool gRunning = false;
39 uint64_t gTotalEventCount = 0;
40
41 constexpr uint16_t kMessageSentEvent = CHRE_EVENT_FIRST_USER_VALUE;
42 constexpr uint16_t kRepeatedEvent = kMessageSentEvent + 1;
43 constexpr uint16_t kEmptyEvent = kRepeatedEvent + 2;
44
45 void *kMessageSentEventData = reinterpret_cast<void *>(0x100);
46 void *kRepeatedEventData = reinterpret_cast<void *>(0x200);
47
messageSentEventFreeCallback(uint16_t eventType,void * data)48 void messageSentEventFreeCallback(uint16_t eventType, void *data) {
49 CHRE_ASSERT(gRunning);
50 CHRE_ASSERT(eventType == kMessageSentEvent);
51 CHRE_ASSERT(data == kMessageSentEventData);
52 }
53
messageFreeCallback(void * message,size_t messageSize)54 void messageFreeCallback(void *message, size_t messageSize) {
55 UNUSED_VAR(message);
56 UNUSED_VAR(messageSize);
57
58 CHRE_ASSERT(gRunning);
59 if (!chreSendEvent(kMessageSentEvent, kMessageSentEventData,
60 messageSentEventFreeCallback, chreGetInstanceId())) {
61 LOGE("Couldn't send event from message free callback");
62 }
63 }
64
repeatedEventFreeCallback(uint16_t eventType,void * data)65 void repeatedEventFreeCallback(uint16_t eventType, void *data) {
66 CHRE_ASSERT(gRunning);
67 CHRE_ASSERT(eventType == kRepeatedEvent);
68 CHRE_ASSERT(data == kRepeatedEventData);
69 }
70
nanoappStart()71 bool nanoappStart() {
72 gRunning = true;
73 LOGI("Spammer started as instance %" PRIu32, chreGetInstanceId());
74
75 if (!chreSendMessageToHostEndpoint(gMessageData, sizeof(gMessageData),
76 kMessageType, CHRE_HOST_ENDPOINT_BROADCAST,
77 messageFreeCallback)) {
78 LOGE("Couldn't send message from start callback");
79 }
80
81 if (!chreSendEvent(kRepeatedEvent, kRepeatedEventData,
82 repeatedEventFreeCallback, chreGetInstanceId())) {
83 LOGE("Couldn't send first repeated event");
84 }
85 if (!chreSendEvent(kEmptyEvent, nullptr, nullptr, chreGetInstanceId())) {
86 LOGE("Couldn't send first empty event");
87 }
88
89 return true;
90 }
91
nanoappHandleEvent(uint32_t,uint16_t eventType,const void * eventData)92 void nanoappHandleEvent(uint32_t /* senderInstanceId */, uint16_t eventType,
93 const void *eventData) {
94 CHRE_ASSERT(gRunning);
95 gTotalEventCount++;
96 if (eventType == kMessageSentEvent) {
97 CHRE_ASSERT(eventData == kMessageSentEventData);
98 if (!chreSendMessageToHostEndpoint(
99 gMessageData, sizeof(gMessageData), kMessageType,
100 CHRE_HOST_ENDPOINT_BROADCAST, messageFreeCallback)) {
101 // Note: commented out to prevent logspam because Linux simulator
102 // currently always returns false
103 // LOGE("Couldn't send message");
104 }
105 } else if (eventType == kRepeatedEvent) {
106 CHRE_ASSERT(eventData == kRepeatedEventData);
107 if (!chreSendEvent(kRepeatedEvent, kRepeatedEventData,
108 repeatedEventFreeCallback, chreGetInstanceId())) {
109 LOGE("Couldn't send repeated event");
110 }
111 } else if (eventType == kEmptyEvent) {
112 CHRE_ASSERT(eventData == nullptr);
113 if (!chreSendEvent(kEmptyEvent, nullptr, nullptr, chreGetInstanceId())) {
114 LOGE("Couldn't send empty event");
115 }
116 }
117 }
118
nanoappEnd()119 void nanoappEnd() {
120 LOGI("Stopped - handled %" PRIu64 " total events", gTotalEventCount);
121 gRunning = false;
122 }
123
124 } // anonymous namespace
125 } // namespace chre
126
127 CHRE_STATIC_NANOAPP_INIT(Spammer, chre::kSpammerAppId, 0,
128 chre::NanoappPermissions::CHRE_PERMS_NONE);
129