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/**
* Copyright (C) 2021 Saturneric
*
* This file is part of GpgFrontend.
*
* GpgFrontend is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GpgFrontend is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
*
* The initial version of the source code is inherited from
* the gpg4usb project, which is under GPL-3.0-or-later.
*
* All the source code of GpgFrontend was modified and released by
* Saturneric<[email protected]> starting on May 12, 2021.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include "core/GpgFunctionObject.h"
#include <cassert>
#include <functional>
#include <memory>
#include <mutex>
#include <shared_mutex>
#include "easylogging++.h"
void GpgFrontend::ChannelObject::SetChannel(int channel) {
this->channel_ = channel;
}
int GpgFrontend::ChannelObject::GetChannel() const { return channel_; }
int GpgFrontend::ChannelObject::GetDefaultChannel() { return _default_channel; }
void GpgFrontend::SingletonStorage::ReleaseChannel(int channel) {
decltype(instances_map_.end()) _it;
{
std::shared_lock<std::shared_mutex> lock(instances_mutex_);
_it = instances_map_.find(channel);
}
if (_it != instances_map_.end()) instances_map_.erase(_it);
}
GpgFrontend::ChannelObject* GpgFrontend::SingletonStorage::FindObjectInChannel(
int channel) {
// read instances_map_
decltype(instances_map_.end()) _it;
{
std::shared_lock<std::shared_mutex> lock(instances_mutex_);
_it = instances_map_.find(channel);
if (_it == instances_map_.end()) {
return nullptr;
} else {
return _it->second.get();
}
}
}
std::vector<int> GpgFrontend::SingletonStorage::GetAllChannelId() {
std::vector<int> _channels;
for (const auto& [key, value] : instances_map_) {
_channels.push_back(key);
}
return _channels;
}
GpgFrontend::ChannelObject* GpgFrontend::SingletonStorage::SetObjectInChannel(
int channel, std::unique_ptr<ChannelObject> p_obj) {
{
LOG(TRACE) << "set channel:" << channel
<< "instance address:" << &instances_map_;
assert(p_obj != nullptr);
if (p_obj == nullptr) return nullptr;
auto raw_obj = p_obj.get();
p_obj->SetChannel(channel);
{
std::unique_lock<std::shared_mutex> lock(instances_mutex_);
instances_map_.insert({channel, std::move(p_obj)});
}
return raw_obj;
}
}
GpgFrontend::SingletonStorage*
GpgFrontend::SingletonStorageCollection::GetSingletonStorage(
const std::type_info& type_id) {
const auto hash = type_id.hash_code();
while (true) {
decltype(storages_map_.end()) _it;
{
std::shared_lock<std::shared_mutex> lock(storages_mutex_);
_it = storages_map_.find(hash);
}
if (_it == storages_map_.end()) {
{
std::unique_lock<std::shared_mutex> lock(storages_mutex_);
storages_map_.insert({hash, std::make_unique<SingletonStorage>()});
}
LOG(TRACE) << "hash:" << hash << "created"
<< "storage address:" << &storages_map_
<< "type_name : " << type_id.name();
continue;
} else {
return _it->second.get();
}
}
}
GpgFrontend::SingletonStorageCollection*
GpgFrontend::SingletonStorageCollection::GetInstance(
bool force_refresh = false) {
static SingletonStorageCollection* instance = nullptr;
if (force_refresh || instance == nullptr) {
instance = new SingletonStorageCollection();
LOG(INFO) << "new single storage collection created: " << instance;
}
return instance;
}
GpgFrontend::ChannelObject::ChannelObject() noexcept = default;
GpgFrontend::ChannelObject::ChannelObject(int channel) : channel_(channel) {}
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