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/**
* Copyright (C) 2021 Saturneric <[email protected]>
*
* 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 "GpgFunctionObject.h"
#include <map>
#include <mutex>
#include <typeinfo>
#include "function/SecureMemoryAllocator.h"
#include "function/basic/ChannelObject.h"
struct FunctionObjectTypeLockInfo {
std::map<int, std::mutex> channel_lock_map;
std::mutex type_lock;
};
std::mutex g_function_object_mutex_map_lock;
std::map<size_t, FunctionObjectTypeLockInfo> g_function_object_mutex_map;
namespace GpgFrontend {
auto GetGlobalFunctionObjectChannelLock(const std::type_info& type, int channel)
-> std::mutex& {
std::lock_guard<std::mutex> lock_guard(g_function_object_mutex_map_lock);
auto& channel_map = g_function_object_mutex_map[type.hash_code()];
return channel_map.channel_lock_map[channel];
}
auto GetGlobalFunctionObjectTypeLock(const std::type_info& type)
-> std::mutex& {
std::lock_guard<std::mutex> lock_guard(g_function_object_mutex_map_lock);
auto& channel_map = g_function_object_mutex_map[type.hash_code()];
return channel_map.type_lock;
}
/**
* @brief Get the Instance object
*
* @param channel
* @return T&
*/
auto GetChannelObjectInstance(const std::type_info& type, int channel)
-> ChannelObject* {
SPDLOG_TRACE("try to get instance of type: {} at channel: {}", type.name(),
channel);
// lock this channel
std::lock_guard<std::mutex> guard(
GetGlobalFunctionObjectChannelLock(type, channel));
auto* p_storage =
SingletonStorageCollection::GetInstance(false)->GetSingletonStorage(type);
SPDLOG_TRACE("get singleton storage result, p_storage: {}",
static_cast<void*>(p_storage));
auto* p_pbj =
static_cast<ChannelObject*>(p_storage->FindObjectInChannel(channel));
SPDLOG_TRACE("find channel object result, channel {}, p_pbj: {}", channel,
static_cast<void*>(p_pbj));
return p_pbj;
}
auto CreateChannelObjectInstance(const std::type_info& type, int channel,
SecureUniquePtr<ChannelObject> channel_object)
-> ChannelObject* {
// lock this channel
std::lock_guard<std::mutex> guard(
GetGlobalFunctionObjectChannelLock(type, channel));
auto* p_storage =
SingletonStorageCollection::GetInstance(false)->GetSingletonStorage(type);
SPDLOG_TRACE("create channel object, channel {}, type: {}", channel,
type.name());
// do create object of this channel
return p_storage->SetObjectInChannel(channel, std::move(channel_object));
}
} // namespace GpgFrontend
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