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content / public / browser / zygote_host / zygote_host_linux.h [blame]
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_PUBLIC_BROWSER_ZYGOTE_HOST_ZYGOTE_HOST_LINUX_H_
#define CONTENT_PUBLIC_BROWSER_ZYGOTE_HOST_ZYGOTE_HOST_LINUX_H_
#include <unistd.h>
#include "base/process/process.h"
#include "build/chromeos_buildflags.h"
#include "content/common/content_export.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "base/files/platform_file.h"
#endif // BUILDFLAG(IS_CHROMEOS)
namespace content {
// https://chromium.googlesource.com/chromium/src/+/main/docs/linux/zygote.md
// The zygote host is an interface, in the browser process, to the zygote
// process.
class ZygoteHost {
public:
// Returns the singleton instance.
static CONTENT_EXPORT ZygoteHost* GetInstance();
virtual ~ZygoteHost() {}
// Returns the pid of the Zygote process.
virtual bool IsZygotePid(pid_t pid) = 0;
// Returns an int which is a bitmask of kSandboxLinux* values. Only valid
// after the first render has been forked.
virtual int GetRendererSandboxStatus() = 0;
// Adjust the OOM score of the given renderer's PID. The allowed
// range for the score is [0, 1000], where higher values are more
// likely to be killed by the OOM killer.
virtual void AdjustRendererOOMScore(base::ProcessHandle process_handle,
int score) = 0;
#if BUILDFLAG(IS_CHROMEOS)
// Reinitialize logging for the Zygote processes. Needed on ChromeOS, which
// switches to a log file in the user's home directory once they log in.
virtual void ReinitializeLogging(uint32_t logging_dest,
base::PlatformFile log_file_fd) = 0;
#endif // BUILDFLAG(IS_CHROMEOS)
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_ZYGOTE_HOST_ZYGOTE_HOST_LINUX_H_