@cli.System.Security.SecuritySafeCriticalAttribute.Annotation
void release(FileDescriptor fd, long pos, long size) throws IOException {
FileStream fs = (FileStream)fd.getStream();
if (WINDOWS)
{
int ERROR_NOT_LOCKED = 158;
OVERLAPPED o = new OVERLAPPED();
o.OffsetLow = (int)pos;
o.OffsetHigh = (int)(pos >> 32);
int result = UnlockFileEx(fs.get_SafeFileHandle(), 0, (int)size, (int)(size >> 32), o);
if (result == 0 && Marshal.GetLastWin32Error() != ERROR_NOT_LOCKED)
{
throw new IOException("Release failed");
}
}
else
{
try
{
if (false) throw new cli.System.ArgumentOutOfRangeException();
if (false) throw new cli.System.IO.IOException();
if (false) throw new cli.System.ObjectDisposedException("");
fs.Unlock(pos, size);
}
catch (cli.System.IO.IOException x)
{
if (!NotLockedHack.isErrorNotLocked(x))
{
throw new IOException(x.getMessage());
}
}
catch (cli.System.ArgumentOutOfRangeException
| cli.System.ObjectDisposedException x)
{
throw new IOException(x.getMessage());
}
}
}
@cli.System.Security.SecuritySafeCriticalAttribute.Annotation
int lock(FileDescriptor fd, boolean blocking, long pos, long size,
boolean shared) throws IOException
{
FileStream fs = (FileStream)fd.getStream();
if (WINDOWS)
{
int LOCKFILE_FAIL_IMMEDIATELY = 1;
int LOCKFILE_EXCLUSIVE_LOCK = 2;
int ERROR_LOCK_VIOLATION = 33;
int flags = 0;
OVERLAPPED o = new OVERLAPPED();
o.OffsetLow = (int)pos;
o.OffsetHigh = (int)(pos >> 32);
if (!blocking)
{
flags |= LOCKFILE_FAIL_IMMEDIATELY;
}
if (!shared)
{
flags |= LOCKFILE_EXCLUSIVE_LOCK;
}
int result = LockFileEx(fs.get_SafeFileHandle(), flags, 0, (int)size, (int)(size >> 32), o);
if (result == 0)
{
int error = Marshal.GetLastWin32Error();
if (!blocking && error == ERROR_LOCK_VIOLATION)
{
return NO_LOCK;
}
throw new IOException("Lock failed");
}
return LOCKED;
}
else
{
try
{
if (false) throw new cli.System.ArgumentOutOfRangeException();
for (;;)
{
try
{
if (false) throw new cli.System.IO.IOException();
if (false) throw new cli.System.ObjectDisposedException("");
fs.Lock(pos, size);
return shared ? RET_EX_LOCK : LOCKED;
}
catch (cli.System.IO.IOException x)
{
if (!blocking)
{
return NO_LOCK;
}
cli.System.Threading.Thread.Sleep(100);
}
catch (cli.System.ObjectDisposedException x)
{
throw new IOException(x.getMessage());
}
}
}
catch (cli.System.ArgumentOutOfRangeException x)
{
throw new IOException(x.getMessage());
}
}
}
