public unsafe Semaphore(int initialCount, int maximumCount, string name, out bool createdNew, SemaphoreSecurity semaphoreSecurity)
{
SafeWaitHandle handle;
if (initialCount < 0)
{
throw new ArgumentOutOfRangeException("initialCount", SR.GetString("ArgumentOutOfRange_NeedNonNegNumRequired"));
}
if (maximumCount < 1)
{
throw new ArgumentOutOfRangeException("maximumCount", SR.GetString("ArgumentOutOfRange_NeedNonNegNumRequired"));
}
if (initialCount > maximumCount)
{
throw new ArgumentException(SR.GetString("Argument_SemaphoreInitialMaximum"));
}
if ((name != null) && (MAX_PATH < name.Length))
{
throw new ArgumentException(SR.GetString("Argument_WaitHandleNameTooLong"));
}
if (semaphoreSecurity != null)
{
Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES structure = null;
structure = new Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES {
nLength = Marshal.SizeOf(structure)
};
fixed(byte *numRef = semaphoreSecurity.GetSecurityDescriptorBinaryForm())
{
structure.lpSecurityDescriptor = new SafeLocalMemHandle((IntPtr)numRef, false);
handle = Microsoft.Win32.SafeNativeMethods.CreateSemaphore(structure, initialCount, maximumCount, name);
}
}
else
{
handle = Microsoft.Win32.SafeNativeMethods.CreateSemaphore(null, initialCount, maximumCount, name);
}
int num = Marshal.GetLastWin32Error();
if (handle.IsInvalid)
{
if (((name != null) && (name.Length != 0)) && (6 == num))
{
throw new WaitHandleCannotBeOpenedException(SR.GetString("WaitHandleCannotBeOpenedException_InvalidHandle", new object[] { name }));
}
InternalResources.WinIOError();
}
createdNew = num != 0xb7;
base.SafeWaitHandle = handle;
}
public unsafe Semaphore(int initialCount, int maximumCount, string name, out bool createdNew, SemaphoreSecurity semaphoreSecurity)
{
SafeWaitHandle handle;
if (initialCount < 0)
{
throw new ArgumentOutOfRangeException("initialCount", SR.GetString("ArgumentOutOfRange_NeedNonNegNumRequired"));
}
if (maximumCount < 1)
{
throw new ArgumentOutOfRangeException("maximumCount", SR.GetString("ArgumentOutOfRange_NeedNonNegNumRequired"));
}
if (initialCount > maximumCount)
{
throw new ArgumentException(SR.GetString("Argument_SemaphoreInitialMaximum"));
}
if ((name != null) && (MAX_PATH < name.Length))
{
throw new ArgumentException(SR.GetString("Argument_WaitHandleNameTooLong"));
}
if (semaphoreSecurity != null)
{
Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES structure = null;
structure = new Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES {
nLength = Marshal.SizeOf(structure)
};
fixed (byte* numRef = semaphoreSecurity.GetSecurityDescriptorBinaryForm())
{
structure.lpSecurityDescriptor = new SafeLocalMemHandle((IntPtr) numRef, false);
handle = Microsoft.Win32.SafeNativeMethods.CreateSemaphore(structure, initialCount, maximumCount, name);
}
}
else
{
handle = Microsoft.Win32.SafeNativeMethods.CreateSemaphore(null, initialCount, maximumCount, name);
}
int num = Marshal.GetLastWin32Error();
if (handle.IsInvalid)
{
if (((name != null) && (name.Length != 0)) && (6 == num))
{
throw new WaitHandleCannotBeOpenedException(SR.GetString("WaitHandleCannotBeOpenedException_InvalidHandle", new object[] { name }));
}
InternalResources.WinIOError();
}
createdNew = num != 0xb7;
base.SafeWaitHandle = handle;
}
internal static extern bool DuplicateTokenEx(SafeHandle hToken, int access, Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES tokenAttributes, int impersonationLevel, int tokenType, out SafeUserTokenHandle hNewToken);
private void Initialize(string fileMappingName, int fileMappingSize, int initialOffset)
{
string lpName = fileMappingName;
SharedUtils.CheckEnvironment();
SafeLocalMemHandle pSecurityDescriptor = null;
new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Assert();
try
{
string stringSecurityDescriptor = "D:(A;OICI;FRFWGRGW;;;AU)(A;OICI;FRFWGRGW;;;S-1-5-33)";
if (!SafeLocalMemHandle.ConvertStringSecurityDescriptorToSecurityDescriptor(stringSecurityDescriptor, 1, out pSecurityDescriptor, IntPtr.Zero))
{
throw new InvalidOperationException(SR.GetString("SetSecurityDescriptorFailed"));
}
Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES lpFileMappingAttributes = new Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES {
lpSecurityDescriptor = pSecurityDescriptor,
bInheritHandle = false
};
int num = 14;
int millisecondsTimeout = 0;
bool flag = false;
while (!flag && (num > 0))
{
this.fileMappingHandle = Microsoft.Win32.NativeMethods.CreateFileMapping((IntPtr) (-1), lpFileMappingAttributes, 4, 0, fileMappingSize, lpName);
if ((Marshal.GetLastWin32Error() != 5) || !this.fileMappingHandle.IsInvalid)
{
flag = true;
}
else
{
this.fileMappingHandle.SetHandleAsInvalid();
this.fileMappingHandle = Microsoft.Win32.NativeMethods.OpenFileMapping(2, false, lpName);
if ((Marshal.GetLastWin32Error() != 2) || !this.fileMappingHandle.IsInvalid)
{
flag = true;
continue;
}
num--;
if (millisecondsTimeout == 0)
{
millisecondsTimeout = 10;
}
else
{
Thread.Sleep(millisecondsTimeout);
millisecondsTimeout *= 2;
}
}
}
if (this.fileMappingHandle.IsInvalid)
{
throw new InvalidOperationException(SR.GetString("CantCreateFileMapping"));
}
this.fileViewAddress = SafeFileMapViewHandle.MapViewOfFile(this.fileMappingHandle, 2, 0, 0, UIntPtr.Zero);
if (this.fileViewAddress.IsInvalid)
{
throw new InvalidOperationException(SR.GetString("CantMapFileView"));
}
Microsoft.Win32.NativeMethods.MEMORY_BASIC_INFORMATION buffer = new Microsoft.Win32.NativeMethods.MEMORY_BASIC_INFORMATION();
if (Microsoft.Win32.NativeMethods.VirtualQuery(this.fileViewAddress, ref buffer, (IntPtr) sizeof(Microsoft.Win32.NativeMethods.MEMORY_BASIC_INFORMATION)) == IntPtr.Zero)
{
throw new InvalidOperationException(SR.GetString("CantGetMappingSize"));
}
this.FileMappingSize = (int) ((uint) buffer.RegionSize);
}
finally
{
if (pSecurityDescriptor != null)
{
pSecurityDescriptor.Close();
}
CodeAccessPermission.RevertAssert();
}
Microsoft.Win32.SafeNativeMethods.InterlockedCompareExchange(this.fileViewAddress.DangerousGetHandle(), initialOffset, 0);
}
internal static extern SafeWaitHandle CreateSemaphore(Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES lpSecurityAttributes, int initialCount, int maximumCount, string name);
private void CreatePipe(out SafeFileHandle parentHandle, out SafeFileHandle childHandle, bool parentInputs)
{
Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES lpPipeAttributes = new Microsoft.Win32.NativeMethods.SECURITY_ATTRIBUTES {
bInheritHandle = true
};
SafeFileHandle hWritePipe = null;
try
{
if (parentInputs)
{
CreatePipeWithSecurityAttributes(out childHandle, out hWritePipe, lpPipeAttributes, 0);
}
else
{
CreatePipeWithSecurityAttributes(out hWritePipe, out childHandle, lpPipeAttributes, 0);
}
if (!Microsoft.Win32.NativeMethods.DuplicateHandle(new HandleRef(this, Microsoft.Win32.NativeMethods.GetCurrentProcess()), hWritePipe, new HandleRef(this, Microsoft.Win32.NativeMethods.GetCurrentProcess()), out parentHandle, 0, false, 2))
{
throw new Win32Exception();
}
}
finally
{
if ((hWritePipe != null) && !hWritePipe.IsInvalid)
{
hWritePipe.Close();
}
}
}
