private void Dispose(bool disposing)
{
--count;
if (Thread.CurrentThread.ManagedThreadId != this.currentThread.ManagedThreadId)
{
throw new InvalidOperationException("Dispose() was called on a thread other than the one that this object was created on");
}
if (count == 0)
{
if ((activeFlags & ThreadBackgroundFlags.Cpu) == ThreadBackgroundFlags.Cpu)
{
this.currentThread.Priority = this.oldThreadPriority;
activeFlags &= ~ThreadBackgroundFlags.Cpu;
}
if (Environment.OSVersion.Version >= OS.WindowsVista &&
(activeFlags & ThreadBackgroundFlags.IO) == ThreadBackgroundFlags.IO)
{
IntPtr hThread = SafeNativeMethods.GetCurrentThread();
bool bResult = SafeNativeMethods.SetThreadPriority(hThread, NativeConstants.THREAD_MODE_BACKGROUND_END);
if (!bResult)
{
NativeMethods.ThrowOnWin32Error("SetThreadPriority(THREAD_MODE_BACKGROUND_END) returned FALSE");
}
activeFlags &= ~ThreadBackgroundFlags.IO;
}
}
}
public ThreadBackground(ThreadBackgroundFlags flags)
{
this.flags = flags;
this.currentThread = Thread.CurrentThread;
this.oldThreadPriority = this.currentThread.Priority;
if ((flags & ThreadBackgroundFlags.Cpu) == ThreadBackgroundFlags.Cpu &&
(activeFlags & ThreadBackgroundFlags.Cpu) != ThreadBackgroundFlags.Cpu)
{
this.currentThread.Priority = ThreadPriority.BelowNormal;
activeFlags |= ThreadBackgroundFlags.Cpu;
}
if (Environment.OSVersion.Version >= OS.WindowsVista &&
(flags & ThreadBackgroundFlags.IO) == ThreadBackgroundFlags.IO &&
(activeFlags & ThreadBackgroundFlags.IO) != ThreadBackgroundFlags.IO)
{
IntPtr hThread = SafeNativeMethods.GetCurrentThread();
bool bResult = SafeNativeMethods.SetThreadPriority(hThread, NativeConstants.THREAD_MODE_BACKGROUND_BEGIN);
if (!bResult)
{
NativeMethods.ThrowOnWin32Error("SetThreadPriority(THREAD_MODE_BACKGROUND_BEGIN) returned FALSE");
}
}
activeFlags |= flags;
++count;
}
public ThreadBackground(ThreadBackgroundFlags flags)
{
this.flags = flags;
this.currentThread = Thread.CurrentThread;
this.oldThreadPriority = this.currentThread.Priority;
if ((flags & ThreadBackgroundFlags.Cpu) == ThreadBackgroundFlags.Cpu &&
(activeFlags & ThreadBackgroundFlags.Cpu) != ThreadBackgroundFlags.Cpu)
{
this.currentThread.Priority = ThreadPriority.BelowNormal;
activeFlags |= ThreadBackgroundFlags.Cpu;
}
if (Environment.OSVersion.Version >= OS.WindowsVista &&
(flags & ThreadBackgroundFlags.IO) == ThreadBackgroundFlags.IO &&
(activeFlags & ThreadBackgroundFlags.IO) != ThreadBackgroundFlags.IO)
{
IntPtr hThread = SafeNativeMethods.GetCurrentThread();
bool bResult = SafeNativeMethods.SetThreadPriority(hThread, NativeConstants.THREAD_MODE_BACKGROUND_BEGIN);
if (!bResult)
{
NativeMethods.ThrowOnWin32Error("SetThreadPriority(THREAD_MODE_BACKGROUND_BEGIN) returned FALSE");
}
}
activeFlags |= flags;
++count;
}
public ThreadBackground(ThreadBackgroundFlags flags)
{
this.flags = flags;
this.currentThread = Thread.CurrentThread;
this.oldThreadPriority = this.currentThread.Priority;
if ((flags & ThreadBackgroundFlags.Cpu) == ThreadBackgroundFlags.Cpu &&
(activeFlags & ThreadBackgroundFlags.Cpu) != ThreadBackgroundFlags.Cpu)
{
this.currentThread.Priority = ThreadPriority.BelowNormal;
activeFlags |= ThreadBackgroundFlags.Cpu;
}
activeFlags |= flags;
++count;
}
public ThreadBackground(ThreadBackgroundFlags flags)
{
this.flags = flags;
this.currentThread = Thread.CurrentThread;
this.oldThreadPriority = this.currentThread.Priority;
if ((flags & ThreadBackgroundFlags.Cpu) == ThreadBackgroundFlags.Cpu &&
(activeFlags & ThreadBackgroundFlags.Cpu) != ThreadBackgroundFlags.Cpu)
{
this.currentThread.Priority = ThreadPriority.BelowNormal;
activeFlags |= ThreadBackgroundFlags.Cpu;
}
activeFlags |= flags;
++count;
}
private void Dispose(bool disposing)
{
--count;
if (Thread.CurrentThread.ManagedThreadId != this.currentThread.ManagedThreadId)
{
throw new InvalidOperationException("Dispose() was called on a thread other than the one that this object was created on");
}
if (count == 0)
{
if ((activeFlags & ThreadBackgroundFlags.Cpu) == ThreadBackgroundFlags.Cpu)
{
this.currentThread.Priority = this.oldThreadPriority;
activeFlags &= ~ThreadBackgroundFlags.Cpu;
}
}
}
private void Dispose(bool disposing)
{
--count;
if (Thread.CurrentThread.ManagedThreadId != this.currentThread.ManagedThreadId)
{
throw new InvalidOperationException("Dispose() was called on a thread other than the one that this object was created on");
}
if (count == 0)
{
if ((activeFlags & ThreadBackgroundFlags.Cpu) == ThreadBackgroundFlags.Cpu)
{
this.currentThread.Priority = this.oldThreadPriority;
activeFlags &= ~ThreadBackgroundFlags.Cpu;
}
if (Environment.OSVersion.Version >= OS.WindowsVista &&
(activeFlags & ThreadBackgroundFlags.IO) == ThreadBackgroundFlags.IO)
{
IntPtr hThread = SafeNativeMethods.GetCurrentThread();
bool bResult = SafeNativeMethods.SetThreadPriority(hThread, NativeConstants.THREAD_MODE_BACKGROUND_END);
if (!bResult)
{
NativeMethods.ThrowOnWin32Error("SetThreadPriority(THREAD_MODE_BACKGROUND_END) returned FALSE");
}
activeFlags &= ~ThreadBackgroundFlags.IO;
}
}
}
private void Dispose(bool disposing)
{
--count;
if (Thread.CurrentThread.ManagedThreadId != this.currentThread.ManagedThreadId)
{
throw new InvalidOperationException("Dispose() was called on a thread other than the one that this object was created on");
}
if (count == 0)
{
if ((activeFlags & ThreadBackgroundFlags.Cpu) == ThreadBackgroundFlags.Cpu)
{
this.currentThread.Priority = this.oldThreadPriority;
activeFlags &= ~ThreadBackgroundFlags.Cpu;
}
}
}
