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