1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CONTENT_PUBLIC_BROWSER_ZYGOTE_HOST_LINUX_H_ 6#define CONTENT_PUBLIC_BROWSER_ZYGOTE_HOST_LINUX_H_ 7 8#include <unistd.h> 9 10#include "base/process/process.h" 11#include "content/common/content_export.h" 12 13namespace content { 14 15// http://code.google.com/p/chromium/wiki/LinuxZygote 16 17// The zygote host is the interface, in the browser process, to the zygote 18// process. 19class ZygoteHost { 20 public: 21 // Returns the singleton instance. 22 CONTENT_EXPORT static ZygoteHost* GetInstance(); 23 24 virtual ~ZygoteHost() {} 25 26 // Returns the pid of the Zygote process. 27 virtual pid_t GetPid() const = 0; 28 29 // Returns an int which is a bitmask of kSandboxLinux* values. Only valid 30 // after the first render has been forked. 31 virtual int GetSandboxStatus() const = 0; 32 33 // Adjust the OOM score of the given renderer's PID. The allowed 34 // range for the score is [0, 1000], where higher values are more 35 // likely to be killed by the OOM killer. 36 virtual void AdjustRendererOOMScore(base::ProcessHandle process_handle, 37 int score) = 0; 38}; 39 40} // namespace content 41 42#endif // CONTENT_PUBLIC_BROWSER_ZYGOTE_HOST_LINUX_H_ 43