iw5-mod/src/game/engine/scoped_critical_section.cpp

#include <std_include.hpp>
#include "game/game.hpp"

#include "scoped_critical_section.hpp"

namespace game::engine
{
	scoped_critical_section::scoped_critical_section(const native::CriticalSection s, const native::ScopedCriticalSectionType type)
		: s_(s), is_scoped_release_(false)
	{
		if (type == native::SCOPED_CRITSECT_NORMAL)
		{
			Sys_EnterCriticalSection(this->s_);
			this->has_ownership_ = true;
		}
		else
		{
			if (type == native::SCOPED_CRITSECT_TRY)
			{
				this->has_ownership_ = Sys_TryEnterCriticalSection(this->s_);
			}
			else
			{
				if (type == native::SCOPED_CRITSECT_RELEASE)
				{
					Sys_LeaveCriticalSection(this->s_);
					this->is_scoped_release_ = true;
				}

				this->has_ownership_ = false;
			}
		}
	}

	scoped_critical_section::~scoped_critical_section()
	{
		if (!this->has_ownership_ || this->is_scoped_release_)
		{
			if (!this->has_ownership_ && this->is_scoped_release_)
			{
				Sys_EnterCriticalSection(this->s_);
			}
		}
		else
		{
			Sys_LeaveCriticalSection(this->s_);
		}
	}

	void scoped_critical_section::enter_crit_sect()
	{
		assert(!this->has_ownership_);

		this->has_ownership_ = true;
		Sys_EnterCriticalSection(this->s_);
	}

	void scoped_critical_section::leave_crit_sect()
	{
		assert(this->has_ownership_);

		this->has_ownership_ = false;
		Sys_LeaveCriticalSection(this->s_);
	}

	bool scoped_critical_section::try_enter_crit_sect()
	{
		assert(!this->has_ownership_);

		const auto result = Sys_TryEnterCriticalSection(this->s_);
		this->has_ownership_ = result;
		return result;
	}

	bool scoped_critical_section::has_ownership() const
	{
		return this->has_ownership_;
	}

	bool scoped_critical_section::is_scoped_release() const
	{
		return this->is_scoped_release_;
	}
}