Atmosphere/stratosphere/ams_mitm/source/sysupdater/sysupdater_thread_allocator.hpp
2021-10-10 00:14:06 -07:00

51 lines
1.9 KiB
C++

/*
* Copyright (c) Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stratosphere.hpp>
namespace ams::mitm::sysupdater {
struct ThreadInfo {
os::ThreadType *thread;
int priority;
void *stack;
size_t stack_size;
};
/* NOTE: Nintendo uses a util::BitArray, but this seems excessive. */
class ThreadAllocator {
private:
os::ThreadType *m_thread_list;
const int m_thread_priority;
const int m_thread_count;
u8 *m_stack_heap;
const size_t m_stack_heap_size;
const size_t m_stack_size;
u64 m_bitmap;
os::SdkMutex m_mutex;
public:
constexpr ThreadAllocator(os::ThreadType *thread_list, int count, int priority, u8 *stack_heap, size_t stack_heap_size, size_t stack_size)
: m_thread_list(thread_list), m_thread_priority(priority), m_thread_count(count), m_stack_heap(stack_heap), m_stack_heap_size(stack_heap_size), m_stack_size(stack_size), m_bitmap()
{
AMS_ASSERT(count <= static_cast<int>(stack_heap_size / stack_size));
AMS_ASSERT(count <= static_cast<int>(BITSIZEOF(m_bitmap)));
}
Result Allocate(ThreadInfo *out);
void Free(const ThreadInfo &info);
};
}