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/*
* Copyright (C) 2018 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 "chre/platform/shared/nanoapp_load_manager.h"
namespace chre {
bool NanoappLoadManager::prepareForLoad(uint16_t hostClientId,
uint32_t transactionId, uint64_t appId,
uint32_t appVersion, uint32_t appFlags,
size_t totalBinaryLen,
uint32_t targetApiVersion) {
if (hasPendingLoadTransaction()) {
LOGW(
"Pending load transaction already exists. Overriding previous"
" transaction.");
}
mCurrentLoadInfo.hostClientId = hostClientId;
mCurrentLoadInfo.transactionId = transactionId;
mCurrentLoadInfo.nextFragmentId = 1;
mNanoapp = MakeUnique<Nanoapp>();
bool success = false;
if (mNanoapp.isNull()) {
LOG_OOM();
} else {
success = mNanoapp->reserveBuffer(appId, appVersion, appFlags,
totalBinaryLen, targetApiVersion);
}
if (!success) {
markFailure();
}
return success;
}
bool NanoappLoadManager::copyNanoappFragment(uint16_t hostClientId,
uint32_t transactionId,
uint32_t fragmentId,
const void *buffer,
size_t bufferLen) {
bool success = false;
if (validateFragment(hostClientId, transactionId, fragmentId)) {
success = mNanoapp->copyNanoappFragment(buffer, bufferLen);
if (success) {
mCurrentLoadInfo.nextFragmentId++;
} else {
markFailure();
}
}
return success;
}
bool NanoappLoadManager::validateFragment(uint16_t hostClientId,
uint32_t transactionId,
uint32_t fragmentId) const {
bool valid = false;
if (!hasPendingLoadTransaction()) {
LOGE("No pending load transaction exists");
} else {
const FragmentedLoadInfo &info = mCurrentLoadInfo;
valid = (info.hostClientId == hostClientId &&
info.transactionId == transactionId &&
info.nextFragmentId == fragmentId);
if (!valid) {
LOGE("Unexpected load fragment: expected host %" PRIu16
"transaction %" PRIu32 " fragment %" PRIu32
", received host %" PRIu16 " transaction %" PRIu32
" fragment %" PRIu32,
info.hostClientId, info.transactionId, info.nextFragmentId,
hostClientId, transactionId, fragmentId);
}
}
return valid;
}
} // namespace chre
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