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// Copyright 2015 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_ANDROID_SECCOMP_SUPPORT_DETECTOR_H_
#define CHROME_BROWSER_ANDROID_SECCOMP_SUPPORT_DETECTOR_H_
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
// This class is used to report via UMA the Android kernel version and
// level of seccomp-bpf support. The operations are performed on the
// blocking thread pool.
class SeccompSupportDetector
: public base::RefCountedThreadSafe<SeccompSupportDetector> {
public:
// Starts the detection process. This should be called once per browser
// session. This is safe to call from any thread.
static void StartDetection();
private:
friend class base::RefCountedThreadSafe<SeccompSupportDetector>;
SeccompSupportDetector();
~SeccompSupportDetector();
// Called on the blocking thread pool. This reads the utsname and records
// the kernel version.
void DetectKernelVersion();
// Called on the blocking thread pool. This tests whether the system
// supports PR_SET_SECCOMP.
void DetectSeccomp();
DISALLOW_COPY_AND_ASSIGN(SeccompSupportDetector);
};
#endif // CHROME_BROWSER_ANDROID_SECCOMP_SUPPORT_DETECTOR_H_
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