Function mem_tryGetLocalRamCapacityInBytes

quest/src/core/memory.cpp:211–230

qindex mem_tryGetLocalRamCapacityInBytes() {
    #if defined(__linux__)
        struct sysinfo info;
        if (sysinfo(&info) == 0)
            return (qindex) info.totalram * info.mem_unit;
    #elif defined(__APPLE__)
        int mib[2] = {CTL_HW, HW_MEMSIZE};
        int64_t memsize = 0;
        size_t len = sizeof(memsize);
        if (sysctl(mib, 2, &memsize, &len, NULL, 0) == 0 && memsize > 0)
            return (qindex) memsize;
    #elif defined(_WIN32)
        MEMORYSTATUSEX statex;
        statex.dwLength = sizeof(statex);
        if (GlobalMemoryStatusEx(&statex))
            return (qindex) statex.ullTotalPhys;
    #endif
    // fallback: throw exception
    throw (mem::COULD_NOT_QUERY_RAM) false;
}