private void CreateMutexCore(bool initiallyOwned, string name, out bool createdNew)
{
#if !PLATFORM_UNIX
Debug.Assert(name == null || name.Length <= Interop.Kernel32.MAX_PATH);
#endif
uint mutexFlags = initiallyOwned ? Win32Native.CREATE_MUTEX_INITIAL_OWNER : 0;
SafeWaitHandle mutexHandle = Win32Native.CreateMutexEx(null, name, mutexFlags, AccessRights);
int errorCode = Marshal.GetLastWin32Error();
if (mutexHandle.IsInvalid)
{
mutexHandle.SetHandleAsInvalid();
#if PLATFORM_UNIX
if (errorCode == Interop.Errors.ERROR_FILENAME_EXCED_RANGE)
{
// On Unix, length validation is done by CoreCLR's PAL after converting to utf-8
throw new ArgumentException(SR.Format(SR.Argument_WaitHandleNameTooLong, name, WaitHandleNameMax), nameof(name));
}
#endif
if (errorCode == Interop.Errors.ERROR_INVALID_HANDLE)
{
throw new WaitHandleCannotBeOpenedException(SR.Format(SR.Threading_WaitHandleCannotBeOpenedException_InvalidHandle, name));
}
throw Win32Marshal.GetExceptionForWin32Error(errorCode, name);
}
createdNew = errorCode != Interop.Errors.ERROR_ALREADY_EXISTS;
SafeWaitHandle = mutexHandle;
}
internal void MutexTryCode(object userData)
{
// try block
if (m_initiallyOwned)
{
m_cleanupInfo.inCriticalRegion = true;
}
uint mutexFlags = m_initiallyOwned ? Win32Native.CREATE_MUTEX_INITIAL_OWNER : 0;
SafeWaitHandle mutexHandle = Win32Native.CreateMutexEx(m_secAttrs, m_name, mutexFlags, AccessRights);
int errorCode = Marshal.GetLastWin32Error();
if (mutexHandle.IsInvalid)
{
mutexHandle.SetHandleAsInvalid();
if (m_name != null)
{
switch (errorCode)
{
#if PLATFORM_UNIX
case Win32Native.ERROR_FILENAME_EXCED_RANGE:
// On Unix, length validation is done by CoreCLR's PAL after converting to utf-8
throw new ArgumentException(SR.Format(SR.Argument_WaitHandleNameTooLong, Interop.Sys.MaxName), "name");
#endif
case Win32Native.ERROR_INVALID_HANDLE:
throw new WaitHandleCannotBeOpenedException(SR.Format(SR.Threading_WaitHandleCannotBeOpenedException_InvalidHandle, m_name));
}
}
__Error.WinIOError(errorCode, m_name);
}
m_newMutex = errorCode != Win32Native.ERROR_ALREADY_EXISTS;
m_mutex.SetHandleInternal(mutexHandle);
m_mutex.hasThreadAffinity = true;
}
