Change URLRequest to use a ref-counted buffer for actual IO.The ref-counting will prevent the deletion / reuse of memorywhile the buffer is actually being used by pending IO.This seems a very intrusive change, but at least we will be ableto make sure that it works without having to chase every singledestruction of an URLRequest to make sure that any pending IOwas cancelled, and also allows us to avoid blocking onthe object destruction.BUG=5325

Review URL: http://codereview.chromium.org/18390

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8603 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 32 insertions, 0 deletions

diff --git a/net/base/io_buffer.h b/net/base/io_buffer.h
new file mode 100644
index 0000000..b390103
--- /dev/null
+++ b/net/base/io_buffer.h
@@ -0,0 +1,32 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef NET_BASE_IO_BUFFER_H_
+#define NET_BASE_IO_BUFFER_H_
+
+#include "base/ref_counted.h"
+
+namespace net {
+
+// This is a simple wrapper around a buffer that provides ref counting for
+// easier asynchronous IO handling.
+class IOBuffer : public base::RefCountedThreadSafe<IOBuffer> {
+ public:
+  explicit IOBuffer(int buffer_size) {
+    data_ = new char[buffer_size];
+  }
+  explicit IOBuffer(char* buffer) : data_(buffer) {}
+  virtual ~IOBuffer() {
+    delete[] data_;
+  }
+
+  char* data() { return data_; }
+
+ protected:
+  char* data_;
+};
+
+}  // namespace net
+
+#endif  // NET_BASE_IO_BUFFER_H_