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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 CHROME_NACL_NACL_LISTENER_H_ | |
6 #define CHROME_NACL_NACL_LISTENER_H_ | |
7 | |
8 #include <vector> | |
9 | |
10 #include "base/memory/scoped_ptr.h" | |
11 #include "base/synchronization/waitable_event.h" | |
12 #include "base/threading/thread.h" | |
13 #include "chrome/common/nacl_types.h" | |
14 #include "ipc/ipc_listener.h" | |
15 | |
16 namespace IPC { | |
17 class SyncChannel; | |
18 class SyncMessageFilter; | |
19 } | |
20 | |
21 // The NaClListener is an IPC channel listener that waits for a | |
22 // request to start a NaCl module. | |
23 class NaClListener : public IPC::Listener { | |
24 public: | |
25 NaClListener(); | |
26 virtual ~NaClListener(); | |
27 // Listen for a request to launch a NaCl module. | |
28 void Listen(); | |
29 | |
30 bool Send(IPC::Message* msg); | |
31 | |
32 #if defined(OS_LINUX) | |
33 void set_prereserved_sandbox_size(size_t prereserved_sandbox_size) { | |
34 prereserved_sandbox_size_ = prereserved_sandbox_size; | |
35 } | |
36 #endif | |
37 #if defined(OS_POSIX) | |
38 void set_number_of_cores(int number_of_cores) { | |
39 number_of_cores_ = number_of_cores; | |
40 } | |
41 #endif | |
42 | |
43 private: | |
44 void OnStart(const nacl::NaClStartParams& params); | |
45 virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE; | |
46 | |
47 // A channel back to the browser. | |
48 scoped_ptr<IPC::SyncChannel> channel_; | |
49 | |
50 // A filter that allows other threads to use the channel. | |
51 scoped_refptr<IPC::SyncMessageFilter> filter_; | |
52 | |
53 base::WaitableEvent shutdown_event_; | |
54 base::Thread io_thread_; | |
55 | |
56 #if defined(OS_LINUX) | |
57 size_t prereserved_sandbox_size_; | |
58 #endif | |
59 #if defined(OS_POSIX) | |
60 // The outer sandbox on Linux and OSX prevents | |
61 // sysconf(_SC_NPROCESSORS) from working; in Windows, there are no | |
62 // problems with invoking GetSystemInfo. Therefore, only in | |
63 // OS_POSIX do we need to supply the number of cores into the | |
64 // NaClChromeMainArgs object. | |
65 int number_of_cores_; | |
66 #endif | |
67 | |
68 // Used to identify what thread we're on. | |
69 base::MessageLoop* main_loop_; | |
70 | |
71 DISALLOW_COPY_AND_ASSIGN(NaClListener); | |
72 }; | |
73 | |
74 #endif // CHROME_NACL_NACL_LISTENER_H_ | |
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