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#include "nw4r/snd/snd_TaskThread.h"
/* Original source:
* kiwi515/ogws
* src/nw4r/snd/snd_TaskThread.cpp
*/
/*******************************************************************************
* headers
*/
#include "common.h"
#include "nw4r/snd/snd_TaskManager.h"
#include <rvl/OS/OSThread.h>
#include "nw4r/NW4RAssert.hpp"
/*******************************************************************************
* functions
*/
namespace nw4r { namespace snd { namespace detail {
TaskThread::TaskThread() :
mStackEnd (nullptr),
mFinishFlag (false),
mCreateFlag (false)
{
}
TaskThread::~TaskThread()
{
if (mCreateFlag)
Destroy();
}
bool TaskThread::Create(s32 priority, void *stack, u32 stackSize)
{
NW4RAssertPointerNonnull_Line(59, stack);
NW4RAssertAligned_Line(60, stack, 4);
if (mCreateFlag)
Destroy();
BOOL result = OSCreateThread(&mThread, &ThreadFunc, this,
static_cast<byte_t *>(stack) + stackSize,
stackSize, priority, OS_THREAD_NO_FLAGS);
if (!result)
return false;
mStackEnd = static_cast<u32 *>(stack);
mFinishFlag = false;
mCreateFlag = true;
OSResumeThread(&mThread);
return true;
}
void TaskThread::Destroy()
{
if (!mCreateFlag)
return;
mFinishFlag = true;
TaskManager::GetInstance().CancelWaitTask();
BOOL result = OSJoinThread(&mThread, nullptr);
NW4RAssert_Line(105, result);
mCreateFlag = false;
}
void *TaskThread::ThreadFunc(void *arg)
{
TaskThread *taskThread = static_cast<TaskThread *>(arg);
taskThread->ThreadProc();
return nullptr;
}
void TaskThread::ThreadProc()
{
while (!mFinishFlag) // TODO: implies volatile?
{
TaskManager::GetInstance().WaitTask();
if (mFinishFlag)
break;
TaskManager::GetInstance().ExecuteTask();
NW4RAssert_Line(160, *mStackEnd == OS_THREAD_STACK_MAGIC);
}
}
}}} // namespace nw4r::snd::detail
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