static MemoryMonitor()
{
Interop.Kernel32.MEMORYSTATUSEX memoryStatusEx = default;
memoryStatusEx.dwLength = (uint)Marshal.SizeOf <Interop.Kernel32.MEMORYSTATUSEX>();
if (Interop.Kernel32.GlobalMemoryStatusEx(out memoryStatusEx) != 0)
{
s_totalPhysical = (long)memoryStatusEx.ullTotalPhys;
s_totalVirtual = (long)memoryStatusEx.ullTotalVirtual;
}
}
#pragma warning disable CA1810 // explicit static cctor
static unsafe MemoryMonitor()
{
Interop.Kernel32.MEMORYSTATUSEX memoryStatus = default;
memoryStatus.dwLength = (uint)sizeof(Interop.Kernel32.MEMORYSTATUSEX);
if (Interop.Kernel32.GlobalMemoryStatusEx(ref memoryStatus))
{
s_totalPhysical = (long)memoryStatus.ullTotalPhys;
s_totalVirtual = (long)memoryStatus.ullTotalVirtual;
}
}
public static unsafe void CheckForAvailableVirtualMemory(ulong nativeSize)
{
Interop.Kernel32.MEMORYSTATUSEX memoryStatus = default;
memoryStatus.dwLength = (uint)sizeof(Interop.Kernel32.MEMORYSTATUSEX);
if (Interop.Kernel32.GlobalMemoryStatusEx(ref memoryStatus))
{
ulong totalVirtual = memoryStatus.ullTotalVirtual;
if (nativeSize >= totalVirtual)
{
throw new IOException(SR.IO_NotEnoughMemory);
}
}
}
protected override unsafe int GetCurrentPressure()
{
Interop.Kernel32.MEMORYSTATUSEX memoryStatus = default;
memoryStatus.dwLength = (uint)sizeof(Interop.Kernel32.MEMORYSTATUSEX);
if (Interop.Kernel32.GlobalMemoryStatusEx(&memoryStatus) == Interop.BOOL.FALSE)
{
return(0);
}
int memoryLoad = (int)memoryStatus.dwMemoryLoad;
return(memoryLoad);
}
protected override int GetCurrentPressure()
{
Interop.Kernel32.MEMORYSTATUSEX memoryStatusEx = default;
memoryStatusEx.dwLength = (uint)Marshal.SizeOf(typeof(Interop.Kernel32.MEMORYSTATUSEX));
if (Interop.Kernel32.GlobalMemoryStatusEx(out memoryStatusEx) == 0)
{
return(0);
}
int memoryLoad = (int)memoryStatusEx.dwMemoryLoad;
return(memoryLoad);
}
private static void CheckForAvailableMemory(out ulong availPageFile, out ulong totalAddressSpaceFree)
{
bool r;
Interop.Kernel32.MEMORYSTATUSEX memory = new Interop.Kernel32.MEMORYSTATUSEX();
r = Interop.Kernel32.GlobalMemoryStatusEx(ref memory);
if (!r)
{
throw Win32Marshal.GetExceptionForWin32Error(Marshal.GetLastWin32Error());
}
availPageFile = memory.availPageFile;
totalAddressSpaceFree = memory.availVirtual;
}
private static void CheckForAvailableMemory(out ulong availPageFile, out ulong totalAddressSpaceFree)
{
bool r;
Interop.Kernel32.MEMORYSTATUSEX memory = new Interop.Kernel32.MEMORYSTATUSEX();
r = Interop.Kernel32.GlobalMemoryStatusEx(ref memory);
if (!r)
{
throw Win32Marshal.GetExceptionForWin32Error(Marshal.GetLastWin32Error());
}
availPageFile = memory.availPageFile;
totalAddressSpaceFree = memory.availVirtual;
// Console.WriteLine($"Memory gate: Mem load: {memory.memoryLoad}% Available memory (physical + page file): {(memory.availPageFile >> 20)} MB Total free address space: {memory.availVirtual >> 20} MB GC Heap: {(GC.GetTotalMemory(true) >> 20)} MB");
}
private static unsafe bool CheckForAvailableMemory(out ulong availPageFile, out ulong totalAddressSpaceFree)
{
Interop.Kernel32.MEMORYSTATUSEX memoryStatus = default;
memoryStatus.dwLength = (uint)sizeof(Interop.Kernel32.MEMORYSTATUSEX);
if (!Interop.Kernel32.GlobalMemoryStatusEx(ref memoryStatus))
{
availPageFile = default;
totalAddressSpaceFree = default;
return(false);
}
availPageFile = memoryStatus.ullAvailPageFile;
totalAddressSpaceFree = memoryStatus.ullAvailVirtual;
// Console.WriteLine($"Memory gate: Mem load: {memory.memoryLoad}% Available memory (physical + page file): {(memory.availPageFile >> 20)} MB Total free address space: {memory.availVirtual >> 20} MB GC Heap: {(GC.GetTotalMemory(true) >> 20)} MB");
return(true);
}
