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/*
* Copyright (C) 2017 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 <nos/NuggetClient.h>
#include <limits>
#include <nos/transport.h>
#include <application.h>
namespace nos {
NuggetClient::NuggetClient(const std::string& name)
: device_name_(name), open_(false) {
}
NuggetClient::NuggetClient(const char* name, uint32_t config)
: device_name_(name ? name : ""), open_(false) {
device_ = { .config = config };
}
NuggetClient::~NuggetClient() {
Close();
}
void NuggetClient::Open() {
if (!open_) {
open_ = nos_device_open(
device_name_.empty() ? nullptr : device_name_.c_str(), &device_) == 0;
}
}
void NuggetClient::Close() {
if (open_) {
device_.ops.close(device_.ctx);
open_ = false;
}
}
bool NuggetClient::IsOpen() const {
return open_;
}
uint32_t NuggetClient::CallApp(uint32_t appId, uint16_t arg,
const std::vector<uint8_t>& request,
std::vector<uint8_t>* response) {
if (!open_) {
return APP_ERROR_IO;
}
if (request.size() > std::numeric_limits<uint32_t>::max()) {
return APP_ERROR_TOO_MUCH;
}
const uint32_t requestSize = request.size();
uint32_t replySize = 0;
uint8_t* replyData = nullptr;
if (response != nullptr) {
response->resize(response->capacity());
replySize = response->size();
replyData = response->data();
}
uint32_t status_code = nos_call_application(&device_, appId, arg,
request.data(), requestSize,
replyData, &replySize);
if (response != nullptr) {
response->resize(replySize);
}
return status_code;
}
uint32_t NuggetClient::Reset() const {
if (!open_)
return APP_ERROR_NOT_READY;
return device_.ops.reset(device_.ctx);
}
nos_device* NuggetClient::Device() {
return open_ ? &device_ : nullptr;
}
const nos_device* NuggetClient::Device() const {
return open_ ? &device_ : nullptr;
}
const std::string& NuggetClient::DeviceName() const {
return device_name_;
}
} // namespace nos
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