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108 lines
2.6 KiB
108 lines
2.6 KiB
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <nos/NuggetClient.h>
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#include <limits>
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#include <nos/transport.h>
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#include <application.h>
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namespace nos {
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NuggetClient::NuggetClient(const std::string& name)
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: device_name_(name), open_(false) {
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}
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NuggetClient::NuggetClient(const char* name, uint32_t config)
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: device_name_(name ? name : ""), open_(false) {
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device_ = { .config = config };
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}
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NuggetClient::~NuggetClient() {
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Close();
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}
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void NuggetClient::Open() {
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if (!open_) {
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open_ = nos_device_open(
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device_name_.empty() ? nullptr : device_name_.c_str(), &device_) == 0;
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}
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}
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void NuggetClient::Close() {
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if (open_) {
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device_.ops.close(device_.ctx);
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open_ = false;
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}
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}
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bool NuggetClient::IsOpen() const {
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return open_;
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}
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uint32_t NuggetClient::CallApp(uint32_t appId, uint16_t arg,
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const std::vector<uint8_t>& request,
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std::vector<uint8_t>* response) {
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if (!open_) {
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return APP_ERROR_IO;
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}
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if (request.size() > std::numeric_limits<uint32_t>::max()) {
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return APP_ERROR_TOO_MUCH;
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}
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const uint32_t requestSize = request.size();
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uint32_t replySize = 0;
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uint8_t* replyData = nullptr;
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if (response != nullptr) {
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response->resize(response->capacity());
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replySize = response->size();
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replyData = response->data();
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}
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uint32_t status_code = nos_call_application(&device_, appId, arg,
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request.data(), requestSize,
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replyData, &replySize);
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if (response != nullptr) {
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response->resize(replySize);
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}
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return status_code;
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}
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uint32_t NuggetClient::Reset() const {
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if (!open_)
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return APP_ERROR_NOT_READY;
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return device_.ops.reset(device_.ctx);
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}
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nos_device* NuggetClient::Device() {
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return open_ ? &device_ : nullptr;
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}
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const nos_device* NuggetClient::Device() const {
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return open_ ? &device_ : nullptr;
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}
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const std::string& NuggetClient::DeviceName() const {
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return device_name_;
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}
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} // namespace nos
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