Esempio n. 1
0
uint32_t Bgetsysmemsize(void)
{
#ifdef _WIN32
    uint32_t siz = UINT32_MAX;
    HMODULE lib = LoadLibrary("KERNEL32.DLL");

    if (lib)
    {
        aGlobalMemoryStatusExType aGlobalMemoryStatusEx =
            (aGlobalMemoryStatusExType)GetProcAddress(lib, "GlobalMemoryStatusEx");

        if (aGlobalMemoryStatusEx)
        {
            //WinNT
            MEMORYSTATUSEX memst;
            memst.dwLength = sizeof(MEMORYSTATUSEX);
            if (aGlobalMemoryStatusEx(&memst))
                siz = (uint32_t)min(UINT32_MAX, memst.ullTotalPhys);
        }
        else
        {
            // Yeah, there's enough Win9x hatred here that a perfectly good workaround
            // has been replaced by an error message.  Oh well, we don't support 9x anyway.
            initprintf("Bgetsysmemsize(): error determining system memory size!\n");
        }

        FreeLibrary(lib);
    }

    return siz;
#elif defined _3DS
    return 16*1024*1024;
#elif (defined(_SC_PAGE_SIZE) || defined(_SC_PAGESIZE)) && defined(_SC_PHYS_PAGES) && !defined(GEKKO)
    uint32_t siz = UINT32_MAX;
    int64_t scpagesiz, scphyspages;

#ifdef _SC_PAGE_SIZE
    scpagesiz = sysconf(_SC_PAGE_SIZE);
#else
    scpagesiz = sysconf(_SC_PAGESIZE);
#endif
    scphyspages = sysconf(_SC_PHYS_PAGES);
    if (scpagesiz >= 0 && scphyspages >= 0)
        siz = (uint32_t)min(UINT32_MAX, (int64_t)scpagesiz * (int64_t)scphyspages);

    //initprintf("Bgetsysmemsize(): %d pages of %d bytes, %d bytes of system memory\n",
    //		scphyspages, scpagesiz, siz);

    return siz;
#else
    return UINT32_MAX;
#endif
}
Esempio n. 2
0
//
// getsysmemsize() -- gets the amount of system memory in the machine
//
unsigned int Bgetsysmemsize(void)
{
#ifdef _WIN32
    unsigned int siz = 0x7fffffff;
	HMODULE lib;
	WINBASEAPI BOOL WINAPI (*aGlobalMemoryStatusEx)(LPMEMORYSTATUSEX) = 0;
	
	lib = LoadLibrary("KERNEL32.DLL");
	if (lib) aGlobalMemoryStatusEx = (void *)GetProcAddress(lib, "GlobalMemoryStatusEx");
	
	if (aGlobalMemoryStatusEx) {
        //WinNT
        MEMORYSTATUSEX memst;
        memst.dwLength = sizeof(MEMORYSTATUSEX);
        if (aGlobalMemoryStatusEx(&memst)) {
            siz = (unsigned int)min(longlong(0x7fffffff), memst.ullTotalPhys);
        }
	} else {
        //Win9x
        MEMORYSTATUS memst;
        GlobalMemoryStatus(&memst);
        siz = (unsigned int)memst.dwTotalPhys;
	}
	
	if (lib) FreeLibrary(lib);
	
	return siz;
#elif (defined(_SC_PAGE_SIZE) || defined(_SC_PAGESIZE)) && defined(_SC_PHYS_PAGES)
	unsigned int siz = 0x7fffffff;
	long scpagesiz, scphyspages;

#ifdef _SC_PAGE_SIZE
	scpagesiz = sysconf(_SC_PAGE_SIZE);
#else
	scpagesiz = sysconf(_SC_PAGESIZE);
#endif
	scphyspages = sysconf(_SC_PHYS_PAGES);
	if (scpagesiz >= 0 && scphyspages >= 0)
		siz = (unsigned int)min(longlong(0x7fffffff), (int64)scpagesiz * (int64)scphyspages);

	//initprintf("Bgetsysmemsize(): %d pages of %d bytes, %d bytes of system memory\n",
	//		scphyspages, scpagesiz, siz);

	return siz;
#else
	return 0x7fffffff;
#endif
}