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// Copyright (c) 2006-2008 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 CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_
#define CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_
#include <string>
#include "base/process.h"
#include "chrome/browser/renderer_host/resource_dispatcher_host.h"
#include "chrome/browser/renderer_host/resource_handler.h"
class SharedIOBuffer;
// Used to complete an asynchronous resource request in response to resource
// load events from the resource dispatcher host.
class AsyncResourceHandler : public ResourceHandler {
public:
AsyncResourceHandler(ResourceDispatcherHost::Receiver* receiver,
int render_process_host_id,
int routing_id,
base::ProcessHandle render_process,
const GURL& url,
ResourceDispatcherHost* resource_dispatcher_host);
// ResourceHandler implementation:
bool OnUploadProgress(int request_id, uint64 position, uint64 size);
bool OnRequestRedirected(int request_id, const GURL& new_url);
bool OnResponseStarted(int request_id, ResourceResponse* response);
bool OnWillRead(int request_id, net::IOBuffer** buf, int* buf_size,
int min_size);
bool OnReadCompleted(int request_id, int* bytes_read);
bool OnResponseCompleted(int request_id,
const URLRequestStatus& status,
const std::string& security_info);
static void GlobalCleanup();
private:
// When reading, we don't know if we are going to get EOF (0 bytes read), so
// we typically have a buffer that we allocated but did not use. We keep
// this buffer around for the next read as a small optimization.
static SharedIOBuffer* spare_read_buffer_;
scoped_refptr<SharedIOBuffer> read_buffer_;
ResourceDispatcherHost::Receiver* receiver_;
int render_process_host_id_;
int routing_id_;
base::ProcessHandle render_process_;
ResourceDispatcherHost* rdh_;
DISALLOW_COPY_AND_ASSIGN(AsyncResourceHandler);
};
#endif // CHROME_BROWSER_RENDERER_HOST_ASYNC_RESOURCE_HANDLER_H_
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