Use ByteArray's native for Socket and File.

runtime/vm/object.cc

Index: runtime/vm/object.cc
===================================================================
--- runtime/vm/object.cc	(revision 3621)
+++ runtime/vm/object.cc	(working copy)
@@ -7511,6 +7511,46 @@
 }
 
 
+void ByteArray::Copy(uint8_t* dst,
+                     const ByteArray& src,
+                     intptr_t src_byte_offset,
+                     intptr_t length) {
+  ASSERT(src_byte_offset + length <= src.Length());
+  const uint8_t *src_addr = src.ByteAddr(src_byte_offset);

[cshapiro, 2012/01/27 23:00:04]

This should be wrapped in a NoGCScope.

[Anders Johnsen, 2012/01/27 23:42:39]

Done.

+  memmove(dst, src_addr, length);
+}
+
+
+void ByteArray::Copy(const ByteArray& dst,
+                     intptr_t dst_byte_offset,
+                     const uint8_t* src,
+                     intptr_t length) {
+  ASSERT(dst_byte_offset + length <= dst.Length());
+  uint8_t *dst_addr = dst.ByteAddr(dst_byte_offset);

[cshapiro, 2012/01/27 23:00:04]

Same here...

[Anders Johnsen, 2012/01/27 23:42:39]

Done.

+  memmove(dst_addr, src, length);
+}
+
+
+void ByteArray::Copy(const ByteArray& dst,
+                     intptr_t dst_byte_offset,
+                     const ByteArray& src,
+                     intptr_t src_byte_offset,
+                     intptr_t length) {
+  ASSERT(src_byte_offset + length <= src.Length());
+  ASSERT(dst_byte_offset + length <= dst.Length());
+  const uint8_t *src_addr = src.ByteAddr(src_byte_offset);
+  uint8_t *dst_addr = dst.ByteAddr(dst_byte_offset);

[cshapiro, 2012/01/27 23:00:04]

...and here.

[Anders Johnsen, 2012/01/27 23:42:39]

Done.

+  memmove(dst_addr, src_addr, length);
+}
+
+
+uint8_t* ByteArray::ByteAddr(intptr_t byte_offset) const {
+  // ByteArray is an abstract class.
+  UNREACHABLE();
+  return NULL;
+}
+
+
 const char* ByteArray::ToCString() const {
   // ByteArray is an abstract class.
   UNREACHABLE();