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// Copyright 2024 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_APP_LAUNCH_PREFETCH_APP_LAUNCH_PREFETCH_H_
#define COMPONENTS_APP_LAUNCH_PREFETCH_APP_LAUNCH_PREFETCH_H_
#include <stdint.h>
#include "base/command_line.h"
#include "base/component_export.h"
namespace app_launch_prefetch {
// These are the App Launch PreFetch (ALPF) splits we do based on process
// type and subtype to differentiate file and offset usage within the files
// accessed by the different variations of the browser processes with the
// same process name.
enum class SubprocessType {
kBrowser,
kBrowserBackground,
kCatchAll,
kCrashpad,
kCrashpadFallback,
kExtension,
kGPU,
kGPUInfo,
kPpapi,
kRenderer,
kUtilityAudio,
kUtilityNetworkService,
kUtilityStorage,
kUtilityOther
};
// Returns an argument to be added to a command line when launching a process to
// direct the Windows prefetcher to use the profile indicated by
// `prefetch_type`.
COMPONENT_EXPORT(APP_LAUNCH_PREFETCH)
base::CommandLine::StringViewType GetPrefetchSwitch(SubprocessType type);
// Returns the bucket number in the switch which would be added to a command
// line when launching a process to direct the Windows prefetcher to use the
// profile indicated by `prefetch_type`.
COMPONENT_EXPORT(APP_LAUNCH_PREFETCH)
uint32_t GetPrefetchBucket(SubprocessType type);
} // namespace app_launch_prefetch
#endif // COMPONENTS_APP_LAUNCH_PREFETCH_APP_LAUNCH_PREFETCH_H_
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