//TODO UNBUFF use FileAccess etc or do custom?
public SafeFileHandle Create(string path, FileAccess acc, FileShare readWrite, FileMode mode, int flags)
{
var handle = WinNative.CreateFile(path,
acc,
FileShare.ReadWrite,
IntPtr.Zero,
mode,
flags,
IntPtr.Zero);
if (handle.IsInvalid)
{
throw new Win32Exception();
}
return(handle);
}
public static SafeFileHandle CreateUnbufferedRW(string path, FileAccess acc, FileShare share, FileMode mode, bool writeThrough)
{
#if !__MonoCS__ && !USE_UNIX_IO
var flags = ExtendedFileOptions.NoBuffering;
if (writeThrough)
{
flags = flags | ExtendedFileOptions.WriteThrough;
}
var handle = WinNative.CreateFile(path,
acc,
share,
IntPtr.Zero,
FileMode.OpenOrCreate,
(int)flags,
IntPtr.Zero);
if (handle.IsInvalid)
{
throw new Win32Exception();
}
return(handle);
#else
var ismac = OS.OsFlavor == OsFlavor.MacOS;
//O_RDONLY is 0
var direct = ismac ? OpenFlags.O_RDONLY : OpenFlags.O_DIRECT;
var flags = GetFlags(acc, mode) | direct;
var han = Syscall.open(path, flags, FilePermissions.S_IRWXU);
if (han < 0)
{
throw new Win32Exception();
}
var handle = new SafeFileHandle((IntPtr)han, true);
if (handle.IsInvalid)
{
throw new Exception("Invalid handle");
}
if (ismac)
{
TurnOffMacCaching(handle);
}
return(handle);
#endif
}
//TODO UNBUFF use FileAccess etc or do custom?
public static SafeFileHandle Create(string path, FileAccess acc, FileShare readWrite, FileMode mode, int flags)
{
#if !__MonoCS__ && !USE_UNIX_IO
var handle = WinNative.CreateFile(path,
acc,
FileShare.ReadWrite,
IntPtr.Zero,
mode,
flags,
IntPtr.Zero);
if (handle.IsInvalid)
{
throw new Win32Exception();
}
return(handle);
#else
//TODO convert flags or separate methods?
return(new SafeFileHandle((IntPtr)0, true));
#endif
}
public SafeFileHandle CreateUnbufferedRW(string path, FileAccess acc, FileShare share, FileMode mode,
bool writeThrough)
{
var flags = ExtendedFileOptions.NoBuffering;
if (writeThrough)
{
flags = flags | ExtendedFileOptions.WriteThrough;
}
var handle = WinNative.CreateFile(path,
acc,
share,
IntPtr.Zero,
FileMode.OpenOrCreate,
(int)flags,
IntPtr.Zero);
if (handle.IsInvalid)
{
throw new Win32Exception();
}
return(handle);
}