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/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <cinttypes>
#include <chre.h>
#include "chre/util/nanoapp/log.h"
#include "chre/util/time.h"
#define LOG_TAG "[DebugDumpWorld]"
/**
* A nanoapp that log debug data on receiving CHRE_EVENT_DEBUG_DUMP.
*/
#ifdef CHRE_NANOAPP_INTERNAL
namespace chre {
namespace {
#endif // CHRE_NANOAPP_INTERNAL
namespace {
uint32_t gEventCount = 0;
uint64_t gDwellTimeNs = 0;
} // namespace
bool nanoappStart() {
LOGI("Debug dump world start");
chreConfigureDebugDumpEvent(true /* enable */);
return true;
}
void nanoappEnd() {
LOGI("Debug dump world end");
// No need to disable debug dump event delivery since nanoapps can't receive
// events after nanoappEnd anyway.
}
void handleDebugDumpEvent() {
// CHRE adds the nanoapp name / ID to the debug dump automatically.
chreDebugDumpLog(" Debug event count: %" PRIu32 "\n", ++gEventCount);
chreDebugDumpLog(" Total dwell time: %" PRIu64 " us\n",
gDwellTimeNs / chre::kOneMicrosecondInNanoseconds);
}
void nanoappHandleEvent(uint32_t senderInstanceId, uint16_t eventType,
const void *eventData) {
uint64_t tic = chreGetTime();
switch (eventType) {
case CHRE_EVENT_DEBUG_DUMP:
LOGI("Receiving debug dump event");
handleDebugDumpEvent();
break;
default:
LOGW("Unknown event type %" PRIu16 " received from sender %" PRIu32,
eventType, senderInstanceId);
break;
}
gDwellTimeNs += chreGetTime() - tic;
}
#ifdef CHRE_NANOAPP_INTERNAL
} // anonymous namespace
} // namespace chre
#include "chre/platform/static_nanoapp_init.h"
#include "chre/util/nanoapp/app_id.h"
CHRE_STATIC_NANOAPP_INIT(DebugDumpWorld, chre::kDebugDumpWorldAppId, 0);
#endif // CHRE_NANOAPP_INTERNAL
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