net: Add NET_API to net/base

net/base/io_buffer.h

 // Copyright (c) 2011 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_
 #pragma once
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/pickle.h"
+#include "net/base/net_api.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> {
+class NET_API IOBuffer : public base::RefCountedThreadSafe<IOBuffer> {
  public:
   IOBuffer();
   explicit IOBuffer(int buffer_size);
 
   char* data() { return data_; }
 
  protected:
   friend class base::RefCountedThreadSafe<IOBuffer>;
 
   // Only allow derived classes to specify data_.
   // In all other cases, we own data_, and must delete it at destruction time.
   explicit IOBuffer(char* data);
 
   virtual ~IOBuffer();
 
   char* data_;
 };
 
 // This version stores the size of the buffer so that the creator of the object
 // doesn't have to keep track of that value.
 // NOTE: This doesn't mean that we want to stop sending the size as an explicit
 // argument to IO functions. Please keep using IOBuffer* for API declarations.
-class IOBufferWithSize : public IOBuffer {
+class NET_API IOBufferWithSize : public IOBuffer {
  public:
   explicit IOBufferWithSize(int size);
 
   int size() const { return size_; }
 
  private:
   virtual ~IOBufferWithSize();
 
   int size_;
 };
 
 // This is a read only IOBuffer.  The data is stored in a string and
 // the IOBuffer interface does not provide a proper way to modify it.
-class StringIOBuffer : public IOBuffer {
+class NET_API StringIOBuffer : public IOBuffer {
  public:
   explicit StringIOBuffer(const std::string& s);
 
   int size() const { return string_data_.size(); }
 
  private:
   virtual ~StringIOBuffer();
 
   std::string string_data_;
 };
 
 // This version wraps an existing IOBuffer and provides convenient functions
 // to progressively read all the data.
-class DrainableIOBuffer : public IOBuffer {
+class NET_API DrainableIOBuffer : public IOBuffer {
  public:
   DrainableIOBuffer(IOBuffer* base, int size);
 
   // DidConsume() changes the |data_| pointer so that |data_| always points
   // to the first unconsumed byte.
   void DidConsume(int bytes);
 
   // Returns the number of unconsumed bytes.
   int BytesRemaining() const;
 
   // Returns the number of consumed bytes.
   int BytesConsumed() const;
 
   // Seeks to an arbitrary point in the buffer. The notion of bytes consumed
   // and remaining are updated appropriately.
   void SetOffset(int bytes);
 
   int size() const { return size_; }
 
  private:
   virtual ~DrainableIOBuffer();
 
   scoped_refptr<IOBuffer> base_;
   int size_;
   int used_;
 };
 
 // This version provides a resizable buffer and a changeable offset.
-class GrowableIOBuffer : public IOBuffer {
+class NET_API GrowableIOBuffer : public IOBuffer {
  public:
   GrowableIOBuffer();
 
   // realloc memory to the specified capacity.
   void SetCapacity(int capacity);
   int capacity() { return capacity_; }
 
   // |offset| moves the |data_| pointer, allowing "seeking" in the data.
   void set_offset(int offset);
   int offset() { return offset_; }
 
   int RemainingCapacity();
   char* StartOfBuffer();
 
  private:
   virtual ~GrowableIOBuffer();
 
   scoped_ptr_malloc<char> real_data_;
   int capacity_;
   int offset_;
 };
 
 // This versions allows a pickle to be used as the storage for a write-style
 // operation, avoiding an extra data copy.
-class PickledIOBuffer : public IOBuffer {
+class NET_API PickledIOBuffer : public IOBuffer {
  public:
   PickledIOBuffer();
 
   Pickle* pickle() { return &pickle_; }
 
   // Signals that we are done writing to the picke and we can use it for a
   // write-style IO operation.
   void Done();
 
  private:
   virtual ~PickledIOBuffer();
 
   Pickle pickle_;
 };
 
 // This class allows the creation of a temporary IOBuffer that doesn't really
 // own the underlying buffer. Please use this class only as a last resort.
 // A good example is the buffer for a synchronous operation, where we can be
 // sure that nobody is keeping an extra reference to this object so the lifetime
 // of the buffer can be completely managed by its intended owner.
-class WrappedIOBuffer : public IOBuffer {
+class NET_API WrappedIOBuffer : public IOBuffer {
  public:
   explicit WrappedIOBuffer(const char* data);
 
  protected:
   virtual ~WrappedIOBuffer();
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_IO_BUFFER_H_