blob: 945195dae054e59dc5ee6344adf32243c00bbe40 (
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
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
// Copyright (c) 2010 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_PPAPI_PLUGIN_PROCESS_HOST_H_
#define CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_
#pragma once
#include <queue>
#include "base/basictypes.h"
#include "base/file_path.h"
#include "chrome/browser/browser_child_process_host.h"
class PpapiPluginProcessHost : public BrowserChildProcessHost {
public:
class Client {
public:
// Gets the information about the renderer that's requesting the channel.
virtual void GetChannelInfo(base::ProcessHandle* renderer_handle,
int* renderer_id) = 0;
// Called when the channel is asynchronously opened to the plugin or on
// error. On error, the parameters should be:
// base::kNullProcessHandle
// IPC::ChannelHandle()
virtual void OnChannelOpened(base::ProcessHandle plugin_process_handle,
const IPC::ChannelHandle& channel_handle) = 0;
};
// You must call init before doing anything else.
explicit PpapiPluginProcessHost();
virtual ~PpapiPluginProcessHost();
// Actually launches the process with the given plugin path. Returns true
// on success (the process was spawned).
bool Init(const FilePath& path);
// Opens a new channel to the plugin. The client will be notified when the
// channel is ready or if there's an error.
void OpenChannelToPlugin(Client* client);
const FilePath& plugin_path() const { return plugin_path_; }
// The client pointer must remain valid until its callback is issued.
private:
void RequestPluginChannel(Client* client);
virtual bool CanShutdown();
virtual void OnProcessLaunched();
virtual bool OnMessageReceived(const IPC::Message& msg);
virtual void OnChannelConnected(int32 peer_pid);
virtual void OnChannelError();
void CancelRequests();
// IPC message handlers.
void OnRendererPluginChannelCreated(const IPC::ChannelHandle& handle);
// Channel requests that we are waiting to send to the plugin process once
// the channel is opened.
std::vector<Client*> pending_requests_;
// Channel requests that we have already sent to the plugin process, but
// haven't heard back about yet.
std::queue<Client*> sent_requests_;
// Path to the plugin library.
FilePath plugin_path_;
DISALLOW_COPY_AND_ASSIGN(PpapiPluginProcessHost);
};
#endif // CHROME_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_
|
