blob: 516a18ba89c9a9c95f6fbc6777debe82ee3ff961 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
// Copyright (c) 2009 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_ZYGOTE_HOST_LINUX_H_
#define CHROME_BROWSER_ZYGOTE_HOST_LINUX_H_
#include <string>
#include <vector>
#include <unistd.h>
#include "base/global_descriptors_posix.h"
#include "base/process.h"
template<typename Type>
struct DefaultSingletonTraits;
// http://code.google.com/p/chromium/wiki/LinuxZygote
// The zygote host is the interface, in the browser process, to the zygote
// process.
class ZygoteHost {
public:
~ZygoteHost();
pid_t ForkRenderer(const std::vector<std::string>& command_line,
const base::GlobalDescriptors::Mapping& mapping);
void EnsureProcessTerminated(pid_t process);
// Get the termination status (exit code) of the process and return true if
// the status indicates the process crashed. |child_exited| is set to true
// iff the child process has terminated. (|child_exited| may be NULL.)
bool DidProcessCrash(base::ProcessHandle handle, bool* child_exited);
// These are the command codes used on the wire between the browser and the
// zygote.
enum {
kCmdFork = 0, // Fork off a new renderer.
kCmdReap = 1, // Reap a renderer child.
kCmdDidProcessCrash = 2, // Check if child process crashed.
};
pid_t pid() const { return pid_; }
private:
friend struct DefaultSingletonTraits<ZygoteHost>;
ZygoteHost();
void LaunchZygoteProcess();
int control_fd_; // the socket to the zygote
pid_t pid_;
};
#endif // CHROME_BROWSER_ZYGOTE_HOST_LINUX_H_
|
