Alachisoft.NCache.Common.Util.ProcessorAffinity Maven / Gradle / Ivy
package Alachisoft.NCache.Common.Util;
/**
* Gets and sets the processor affinity of the current thread.
*/
public final class ProcessorAffinity {
////C# TO JAVA CONVERTER TODO TASK: There is no preprocessor in Java:
////#if !MONO
//
// private static class Win32Native
// {
// //GetCurrentThread() returns only a pseudo handle. No need for a SafeHandle here.
//
// public static native IntPtr GetCurrentThread();
//
// static
// {
// System.loadLibrary("kernel32.dll");
// }
//
// public static native UIntPtr SetThreadAffinityMask(IntPtr handle, UIntPtr mask);
// }
////#endif
//
////C# TO JAVA CONVERTER WARNING: Java does not allow user-defined value types. The behavior of this class will differ from the original:
////ORIGINAL LINE: public struct ProcessorAffinityHelper : IDisposable
// public final static class ProcessorAffinityHelper implements IDisposable
// {
//
// private UIntPtr lastaffinity = new UIntPtr();
//
// public ProcessorAffinityHelper()
// {
// }
//
// public ProcessorAffinityHelper(UIntPtr lastaffinity)
// {
// this.lastaffinity = lastaffinity;
// }
//
////C# TO JAVA CONVERTER TODO TASK: There is no preprocessor in Java:
// ///#region IDisposable Members
// public void dispose()
// {
////C# TO JAVA CONVERTER TODO TASK: There is no preprocessor in Java:
////#if !MONO
// if (lastaffinity != UIntPtr.Zero)
// {
// Win32Native.SetThreadAffinityMask(Win32Native.GetCurrentThread(), lastaffinity);
// lastaffinity = UIntPtr.Zero;
// }
////#else
// //@UH
////#endif
// }
//
////C# TO JAVA CONVERTER TODO TASK: There is no preprocessor in Java:
// ///#endregion
// public ProcessorAffinityHelper clone()
// {
// ProcessorAffinityHelper varCopy = new ProcessorAffinityHelper();
//
// varCopy.lastaffinity = this.lastaffinity;
//
// return varCopy;
// }
// }
//
// private static long maskfromids(Integer... ids)
// {
////C# TO JAVA CONVERTER WARNING: Unsigned integer types have no direct equivalent in Java:
////ORIGINAL LINE: ulong mask = 0;
// long mask = 0;
// for (int id : ids)
// {
// if (id < 0 || id >= Environment.ProcessorCount)
// {
// throw new IllegalArgumentException("CPUId", (new Integer(id)).toString());
// }
// mask |= 1 << id;
// }
// return mask;
// }
//
// /**
// * Sets a processor affinity mask for the current thread.
// *
// * @param mask A thread affinity mask where each bit set to 1 specifies a logical processor on which this thread is allowed to run. Note: a thread cannot specify a broader set
// * of CPUs than those specified in the process affinity mask. *
// * @return The previous affinity mask for the current thread.
// */
// public static UIntPtr SetThreadAffinityMask(UIntPtr mask)
// {
////C# TO JAVA CONVERTER TODO TASK: There is no preprocessor in Java:
////#if !MONO
// UIntPtr lastaffinity = Win32Native.SetThreadAffinityMask(Win32Native.GetCurrentThread(), mask);
// if (lastaffinity == UIntPtr.Zero)
// {
// throw new Win32Exception(Marshal.GetLastWin32Error());
// }
// return lastaffinity;
////#else
// //@UH
// return UIntPtr.Zero;
////#endif
// }
//
// /**
// * Sets the logical CPUs that the current thread is allowed to execute on.
// *
// * @param CPUIds One or more logical processor identifier(s) the current thread is allowed to run on.Note: numbering starts from 0.
// * @return The previous affinity mask for the current thread.
// */
// public static UIntPtr SetThreadAffinity(Integer... CPUIds)
// {
// return SetThreadAffinityMask(((UIntPtr) maskfromids(CPUIds)));
// }
//
// /**
// * Restrict a code block to run on the specified logical CPUs in conjuction with the
// * using statement.
// *
// * @param CPUIds One or more logical processor identifier(s) the current thread is allowed to run on.Note: numbering starts from 0.
// * @return A helper structure that will reset the affinity when its Dispose() method is called at the end of the using block.
// */
// public static ProcessorAffinityHelper BeginAffinity(Integer... CPUIds)
// {
// return new ProcessorAffinityHelper(SetThreadAffinityMask(((UIntPtr) maskfromids(CPUIds))));
// }
}