chromium/components/nacl/browser/nacl_browser.h

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_NACL_BROWSER_NACL_BROWSER_H_
#define COMPONENTS_NACL_BROWSER_NACL_BROWSER_H_

#include <stdint.h>

#include <memory>

#include "base/containers/circular_deque.h"
#include "base/containers/lru_cache.h"
#include "base/files/file.h"
#include "base/functional/bind.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/thread_pool.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "components/nacl/browser/nacl_browser_delegate.h"
#include "components/nacl/browser/nacl_validation_cache.h"

namespace base {
class FileProxy;
}

namespace nacl {

static const int kGdbDebugStubPortUnknown = …;
static const int kGdbDebugStubPortUnused = …;

// Keep the cache bounded to an arbitrary size.  If it's too small, useful
// entries could be evicted when multiple .nexes are loaded at once.  On the
// other hand, entries are not always claimed (and hence removed), so the size
// of the cache will likely saturate at its maximum size.
// Entries may not be claimed for two main reasons. 1) the NaCl process could
// be killed while it is loading.  2) the trusted NaCl plugin opens files using
// the code path but doesn't resolve them.
// TODO(ncbray) don't cache files that the plugin will not resolve.
static const int kFilePathCacheSize = …;

// Open an immutable executable file that can be mmapped (or a read-only file).
// This function should only be called on a thread that can perform file IO.
base::File OpenNaClReadExecImpl(const base::FilePath& file_path,
                                bool is_executable);

// Represents shared state for all NaClProcessHost objects in the browser.
class NaClBrowser { … };

} // namespace nacl

#endif  // COMPONENTS_NACL_BROWSER_NACL_BROWSER_H_