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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_ZYGOTE_HOST_LINUX_H_ | 5 #ifndef CHROME_BROWSER_ZYGOTE_HOST_LINUX_H_ |
6 #define CHROME_BROWSER_ZYGOTE_HOST_LINUX_H_ | 6 #define CHROME_BROWSER_ZYGOTE_HOST_LINUX_H_ |
7 | 7 |
8 #include <unistd.h> | |
9 | |
10 #include <string> | 8 #include <string> |
11 #include <vector> | 9 #include <vector> |
12 | 10 |
| 11 #include <unistd.h> |
| 12 |
13 #include "base/global_descriptors_posix.h" | 13 #include "base/global_descriptors_posix.h" |
14 #include "base/process.h" | 14 #include "base/process.h" |
15 | 15 |
16 template<typename Type> | 16 template<typename Type> |
17 struct DefaultSingletonTraits; | 17 struct DefaultSingletonTraits; |
18 | 18 |
19 static const char kZygoteMagic[] = "ZYGOTE_OK"; | |
20 | |
21 // http://code.google.com/p/chromium/wiki/LinuxZygote | 19 // http://code.google.com/p/chromium/wiki/LinuxZygote |
22 | 20 |
23 // The zygote host is the interface, in the browser process, to the zygote | 21 // The zygote host is the interface, in the browser process, to the zygote |
24 // process. | 22 // process. |
25 class ZygoteHost { | 23 class ZygoteHost { |
26 public: | 24 public: |
27 void Init(const std::string& sandbox_cmd); | 25 ~ZygoteHost(); |
28 | 26 |
29 pid_t ForkRenderer(const std::vector<std::string>& command_line, | 27 pid_t ForkRenderer(const std::vector<std::string>& command_line, |
30 const base::GlobalDescriptors::Mapping& mapping); | 28 const base::GlobalDescriptors::Mapping& mapping); |
31 void EnsureProcessTerminated(pid_t process); | 29 void EnsureProcessTerminated(pid_t process); |
32 | 30 |
33 // Get the termination status (exit code) of the process and return true if | 31 // Get the termination status (exit code) of the process and return true if |
34 // the status indicates the process crashed. |child_exited| is set to true | 32 // the status indicates the process crashed. |child_exited| is set to true |
35 // iff the child process has terminated. (|child_exited| may be NULL.) | 33 // iff the child process has terminated. (|child_exited| may be NULL.) |
36 bool DidProcessCrash(base::ProcessHandle handle, bool* child_exited); | 34 bool DidProcessCrash(base::ProcessHandle handle, bool* child_exited); |
37 | 35 |
38 // These are the command codes used on the wire between the browser and the | 36 // These are the command codes used on the wire between the browser and the |
39 // zygote. | 37 // zygote. |
40 enum { | 38 enum { |
41 kCmdFork = 0, // Fork off a new renderer. | 39 kCmdFork = 0, // Fork off a new renderer. |
42 kCmdReap = 1, // Reap a renderer child. | 40 kCmdReap = 1, // Reap a renderer child. |
43 kCmdDidProcessCrash = 2, // Check if child process crashed. | 41 kCmdDidProcessCrash = 2, // Check if child process crashed. |
44 }; | 42 }; |
45 | 43 |
46 pid_t pid() const { return pid_; } | 44 pid_t pid() const { return pid_; } |
47 | 45 |
48 private: | 46 private: |
49 friend struct DefaultSingletonTraits<ZygoteHost>; | 47 friend struct DefaultSingletonTraits<ZygoteHost>; |
50 ZygoteHost(); | 48 ZygoteHost(); |
51 ~ZygoteHost(); | 49 void LaunchZygoteProcess(); |
52 | 50 |
53 int control_fd_; // the socket to the zygote | 51 int control_fd_; // the socket to the zygote |
54 pid_t pid_; | 52 pid_t pid_; |
55 bool init_; | |
56 }; | 53 }; |
57 | 54 |
58 #endif // CHROME_BROWSER_ZYGOTE_HOST_LINUX_H_ | 55 #endif // CHROME_BROWSER_ZYGOTE_HOST_LINUX_H_ |
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