Expose transferable constructor to Int8List

runtime/vm/os_win.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/os.h"
 
+#include <malloc.h>
 #include <time.h>
 
 #include "platform/assert.h"
 
 namespace dart {
 
 // As a side-effect sets the globals _timezone, _daylight and _tzname.
 static bool LocalTime(int64_t seconds_since_epoch, tm* tm_result) {
   time_t seconds = static_cast<time_t>(seconds_since_epoch);
   if (seconds != seconds_since_epoch) return false;
@@ skipping 78 matching lines @@
   union TimeStamp {
     FILETIME ft_;
     int64_t t_;
   };
   TimeStamp time;
   GetSystemTimeAsFileTime(&time.ft_);
   return (time.t_ - kTimeEpoc) / kTimeScaler;
 }
 
 
+void* OS::AlignedAllocate(intptr_t size, intptr_t alignment) {
+  const int kMinimumAlignment = 16;
+  ASSERT(Utils::IsPowerOfTwo(alignment));
+  ASSERT(alignment >= kMinimumAlignment);
+  void* p = _aligned_malloc(size, alignment);
+  if (p == NULL) {
+    UNREACHABLE();
+  }
+  return p;
+}
+
+
+void OS::AlignedFree(void* ptr) {
+  _aligned_free(ptr);
+}
+
+
 word OS::ActivationFrameAlignment() {
 #ifdef _WIN64
   // Windows 64-bit ABI requires the stack to be 16-byte aligned.
   return 16;
 #else
   // No requirements on Win32.
   return 0;
 #endif
 }
 
@@ skipping 126 matching lines @@
 void OS::Abort() {
   abort();
 }
 
 
 void OS::Exit(int code) {
   exit(code);
 }
 
 }  // namespace dart