// Authors:
// Jonathan Pryor (jonpryor@vt.edu)
//
-// (C) 2004-2005 Jonathan Pryor
+// (C) 2004-2006 Jonathan Pryor
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
{
private UnixMarshal () {}
- [Obsolete ("Use GetErrorDescription (Mono.Unix.Native.Errno)", true)]
- public static string GetErrorDescription (Error errno)
- {
- return ErrorMarshal.Translate ((Native.Errno) (int) errno);
- }
-
[CLSCompliant (false)]
public static string GetErrorDescription (Native.Errno errno)
{
return ErrorMarshal.Translate (errno);
}
- [Obsolete ("Use AllocHeap(long)", true)]
- public static IntPtr Alloc (long size)
- {
- return AllocHeap (size);
- }
-
public static IntPtr AllocHeap (long size)
{
if (size < 0)
return Native.Stdlib.malloc ((ulong) size);
}
- [Obsolete ("Use ReAllocHeap(long)", true)]
- public static IntPtr ReAlloc (IntPtr ptr, long size)
- {
- return ReAllocHeap (ptr, size);
- }
-
public static IntPtr ReAllocHeap (IntPtr ptr, long size)
{
if (size < 0)
return Native.Stdlib.realloc (ptr, (ulong) size);
}
- [Obsolete ("Use FreeHeap(IntPtr)", true)]
- public static void Free (IntPtr ptr)
- {
- FreeHeap (ptr);
- }
-
public static void FreeHeap (IntPtr ptr)
{
Native.Stdlib.free (ptr);
if (p == IntPtr.Zero)
return null;
+ if (encoding == null)
+ throw new ArgumentNullException ("encoding");
+
int len = GetStringByteLength (p, encoding);
// Due to variable-length encoding schemes, GetStringByteLength() may
else if (typeof(UnicodeEncoding).IsAssignableFrom (encodingType)) {
len = GetInt16BufferLength (p);
}
+ // Encodings that will always end with a 0x00000000 32-bit word
+ else if (typeof(UTF32Encoding).IsAssignableFrom (encodingType)) {
+ len = GetInt32BufferLength (p);
+ }
// Some non-public encoding, such as Latin1 or a DBCS charset.
// Look for a sequence of encoding.GetMaxByteCount() bytes that are all
// 0, which should be the terminating null.
{
if (count < 0)
throw new ArgumentOutOfRangeException ("count", "< 0");
+ if (encoding == null)
+ throw new ArgumentNullException ("encoding");
if (stringArray == IntPtr.Zero)
return new string[count];
return members;
}
- [Obsolete ("Use StringToHeap(string)", true)]
- public static IntPtr StringToAlloc (string s)
- {
- return StringToHeap (s, UnixEncoding.Instance);
- }
-
public static IntPtr StringToHeap (string s)
{
return StringToHeap (s, UnixEncoding.Instance);
public static IntPtr StringToHeap (string s, Encoding encoding)
{
+ if (s == null)
+ return IntPtr.Zero;
+
return StringToHeap (s, 0, s.Length, encoding);
}
public static IntPtr StringToHeap (string s, int index, int count, Encoding encoding)
{
- int min_byte_count = encoding.GetMaxByteCount(1);
- char[] copy = s.ToCharArray (index, count);
- byte[] marshal = new byte [encoding.GetByteCount (copy) + min_byte_count];
+ if (s == null)
+ return IntPtr.Zero;
- int bytes_copied = encoding.GetBytes (copy, 0, copy.Length, marshal, 0);
+ if (encoding == null)
+ throw new ArgumentNullException ("encoding");
- if (bytes_copied != (marshal.Length-min_byte_count))
- throw new NotSupportedException ("encoding.GetBytes() doesn't equal encoding.GetByteCount()!");
+ if (index < 0 || count < 0)
+ throw new ArgumentOutOfRangeException ((index < 0 ? "index" : "count"),
+ "Non - negative number required.");
- IntPtr mem = AllocHeap (marshal.Length);
- if (mem == IntPtr.Zero)
- throw new OutOfMemoryException ();
+ if (s.Length - index < count)
+ throw new ArgumentOutOfRangeException ("s", "Index and count must refer to a location within the string.");
- bool copied = false;
- try {
- Marshal.Copy (marshal, 0, mem, marshal.Length);
- copied = true;
- }
- finally {
- if (!copied)
- FreeHeap (mem);
+ int null_terminator_count = encoding.GetMaxByteCount (1);
+ int length_without_null = encoding.GetByteCount (s);
+ int marshalLength = checked (length_without_null + null_terminator_count);
+
+ IntPtr mem = AllocHeap (marshalLength);
+ if (mem == IntPtr.Zero)
+ throw new UnixIOException (Native.Errno.ENOMEM);
+
+ unsafe {
+ fixed (char* p = s) {
+ byte* marshal = (byte*)mem;
+ int bytes_copied;
+
+ try {
+ bytes_copied = encoding.GetBytes (p + index, count, marshal, marshalLength);
+ } catch {
+ FreeHeap (mem);
+ throw;
+ }
+
+ if (bytes_copied != length_without_null) {
+ FreeHeap (mem);
+ throw new NotSupportedException ("encoding.GetBytes() doesn't equal encoding.GetByteCount()!");
+ }
+
+ marshal += length_without_null;
+ for (int i = 0; i < null_terminator_count; ++i)
+ marshal[i] = 0;
+ }
}
return mem;
return false;
}
- [Obsolete ("Use ShouldRetrySyscall (int, out Mono.Unix.Native.Errno", true)]
- public static bool ShouldRetrySyscall (int r, out Error errno)
- {
- errno = (Error) 0;
- if (r == -1 && (errno = Stdlib.GetLastError ()) == Error.EINTR)
- return true;
- return false;
- }
-
[CLSCompliant (false)]
public static bool ShouldRetrySyscall (int r, out Native.Errno errno)
{
return false;
}
- [Obsolete ("Use CreateExceptionForError (Mono.Unix.Native.Errno)", true)]
- internal static Exception CreateExceptionForError (Error errno)
- {
- string message = GetErrorDescription (errno);
- UnixIOException p = new UnixIOException (errno);
- switch (errno) {
- case Error.EFAULT: return new NullReferenceException (message, p);
- case Error.EINVAL: return new ArgumentException (message, p);
- case Error.EIO:
- case Error.ENOSPC:
- case Error.EROFS:
- case Error.ESPIPE:
- return new IOException (message, p);
- case Error.ENAMETOOLONG: return new PathTooLongException (message, p);
- case Error.ENOENT: return new FileNotFoundException (message, p);
- case Error.ENOEXEC: return new InvalidProgramException (message, p);
- case Error.EOVERFLOW: return new OverflowException (message, p);
- case Error.ERANGE: return new ArgumentOutOfRangeException (message);
- default: /* ignore */ break;
- }
- return p;
- }
-
internal static Exception CreateExceptionForError (Native.Errno errno)
{
string message = GetErrorDescription (errno);
UnixIOException p = new UnixIOException (errno);
+
+ // Ordering: Order alphabetically by exception first (right column),
+ // then order alphabetically by Errno value (left column) for the given
+ // exception.
switch (errno) {
- case Native.Errno.EFAULT: return new NullReferenceException (message, p);
+ case Native.Errno.EBADF:
case Native.Errno.EINVAL: return new ArgumentException (message, p);
- case Native.Errno.EBADF: return new ArgumentException (message, p);
- case Native.Errno.EIO:
- case Native.Errno.ENOSPC:
- case Native.Errno.EROFS:
- case Native.Errno.ESPIPE:
- return new IOException (message, p);
- case Native.Errno.ENAMETOOLONG: return new PathTooLongException (message, p);
+
+ case Native.Errno.ERANGE: return new ArgumentOutOfRangeException (message);
+ case Native.Errno.ENOTDIR: return new DirectoryNotFoundException (message, p);
case Native.Errno.ENOENT: return new FileNotFoundException (message, p);
+
+ case Native.Errno.EOPNOTSUPP:
+ case Native.Errno.EPERM: return new InvalidOperationException (message, p);
+
case Native.Errno.ENOEXEC: return new InvalidProgramException (message, p);
+
+ case Native.Errno.EIO:
+ case Native.Errno.ENOSPC:
+ case Native.Errno.ENOTEMPTY:
+ case Native.Errno.ENXIO:
+ case Native.Errno.EROFS:
+ case Native.Errno.ESPIPE: return new IOException (message, p);
+
+ case Native.Errno.EFAULT: return new NullReferenceException (message, p);
case Native.Errno.EOVERFLOW: return new OverflowException (message, p);
- case Native.Errno.ERANGE: return new ArgumentOutOfRangeException (message);
+ case Native.Errno.ENAMETOOLONG: return new PathTooLongException (message, p);
+
+ case Native.Errno.EACCES:
+ case Native.Errno.EISDIR: return new UnauthorizedAccessException (message, p);
+
default: /* ignore */ break;
}
return p;
return CreateExceptionForError (Native.Stdlib.GetLastError());
}
- [Obsolete ("Use ThrowExceptionForError (Mono.Unix.Native.Errno)", true)]
- public static void ThrowExceptionForError (Error errno)
- {
- throw CreateExceptionForError (errno);
- }
-
[CLSCompliant (false)]
public static void ThrowExceptionForError (Native.Errno errno)
{
throw CreateExceptionForLastError ();
}
- [Obsolete ("Use ThrowExceptionForErrorIf (int, Mono.Unix.Native.Errno)", true)]
- public static void ThrowExceptionForErrorIf (int retval, Error errno)
- {
- if (retval == -1)
- ThrowExceptionForError (errno);
- }
-
[CLSCompliant (false)]
public static void ThrowExceptionForErrorIf (int retval, Native.Errno errno)
{
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