#include "..\include_eapi_header.h"

// 调用格式: SDT_INT 取内存容量信息, 命令说明: "取内存容量信息，单位为M（兆）。"
// 参数<1>: 内存类型 SDT_INT, 参数说明: "可以被省略。要取得的内存类型，可以为以下常量值之一：0、#接口常量.总物理内存；1、#接口常量.可用物理内存；2、#接口常量.总虚拟内存；3、#接口常量.可用虚拟内存；4、#接口常量.总页面文件；5、#接口常量.可用页面文件。"



inline size_t GetMemoryInfo(unsigned short val)
{
	unsigned long long result = 0;

	MEMORYSTATUSEX BufferEx;

	BufferEx.dwLength = sizeof(BufferEx);
	GlobalMemoryStatusEx(&BufferEx);
	switch (val)
	{
	case 1:
		result = BufferEx.ullAvailPhys >> 20;
		break;
	case 2:
		result = BufferEx.ullTotalVirtual >> 20;
		break;
	case 3:
		result = BufferEx.ullAvailVirtual >> 20;
		break;
	case 4:
		result = BufferEx.ullTotalPageFile >> 20;
		break;
	case 5:
		result = BufferEx.ullAvailPageFile >> 20;
		break;
	default:
		result = BufferEx.ullTotalPhys >> 20;
	}
	return static_cast<size_t>(result);
}




EAPI_EXTERN_C void eapi_GetMemoryInfo_19_eapi(PMDATA_INF pRetData, INT nArgCount, PMDATA_INF pArgInf)
{
	INT Type = 0;
	if (pArgInf->m_dtDataType == SDT_INT && pArgInf->m_int > 0 && pArgInf->m_int < 6)
	{
		Type = pArgInf->m_int;

	}
	pRetData->m_int = GetMemoryInfo(Type);
}