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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
// Copyright 2013 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 CONTENT_BROWSER_SERVICE_WORKER_EMBEDDED_WORKER_REGISTRY_H_
#define CONTENT_BROWSER_SERVICE_WORKER_EMBEDDED_WORKER_REGISTRY_H_
#include <map>
#include <set>
#include <vector>
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/strings/string16.h"
#include "content/common/content_export.h"
#include "content/common/service_worker/service_worker_status_code.h"
struct EmbeddedWorkerMsg_StartWorker_Params;
class GURL;
namespace IPC {
class Message;
class Sender;
}
namespace content {
class EmbeddedWorkerInstance;
class ServiceWorkerContextCore;
// Acts as a thin stub between MessageFilter and each EmbeddedWorkerInstance,
// which sends/receives messages to/from each EmbeddedWorker in child process.
//
// Hangs off ServiceWorkerContextCore (its reference is also held by each
// EmbeddedWorkerInstance). Operated only on IO thread.
class CONTENT_EXPORT EmbeddedWorkerRegistry
: public NON_EXPORTED_BASE(base::RefCounted<EmbeddedWorkerRegistry>) {
public:
typedef base::Callback<void(ServiceWorkerStatusCode)> StatusCallback;
static scoped_refptr<EmbeddedWorkerRegistry> Create(
const base::WeakPtr<ServiceWorkerContextCore>& contxet);
// Used for DeleteAndStartOver. Creates a new registry which takes over
// |next_embedded_worker_id_| and |process_sender_map_| from |old_registry|.
static scoped_refptr<EmbeddedWorkerRegistry> Create(
const base::WeakPtr<ServiceWorkerContextCore>& context,
EmbeddedWorkerRegistry* old_registry);
bool OnMessageReceived(const IPC::Message& message);
// Creates and removes a new worker instance entry for bookkeeping.
// This doesn't actually start or stop the worker.
scoped_ptr<EmbeddedWorkerInstance> CreateWorker();
// Called from EmbeddedWorkerInstance, relayed to the child process.
void SendStartWorker(scoped_ptr<EmbeddedWorkerMsg_StartWorker_Params> params,
const StatusCallback& callback,
int process_id);
ServiceWorkerStatusCode StopWorker(int process_id,
int embedded_worker_id);
// Stop all active workers, even if they're handling events.
void Shutdown();
// Called back from EmbeddedWorker in the child process, relayed via
// ServiceWorkerDispatcherHost.
void OnWorkerReadyForInspection(int process_id, int embedded_worker_id);
void OnWorkerScriptLoaded(int process_id,
int thread_id,
int embedded_worker_id);
void OnWorkerScriptLoadFailed(int process_id, int embedded_worker_id);
void OnWorkerStarted(int process_id, int embedded_worker_id);
void OnWorkerStopped(int process_id, int embedded_worker_id);
void OnPausedAfterDownload(int process_id, int embedded_worker_id);
void OnReportException(int embedded_worker_id,
const base::string16& error_message,
int line_number,
int column_number,
const GURL& source_url);
void OnReportConsoleMessage(int embedded_worker_id,
int source_identifier,
int message_level,
const base::string16& message,
int line_number,
const GURL& source_url);
// Keeps a map from process_id to sender information.
void AddChildProcessSender(int process_id, IPC::Sender* sender);
void RemoveChildProcessSender(int process_id);
// Returns an embedded worker instance for given |embedded_worker_id|.
EmbeddedWorkerInstance* GetWorker(int embedded_worker_id);
// Returns true if |embedded_worker_id| is managed by this registry.
bool CanHandle(int embedded_worker_id) const;
private:
friend class base::RefCounted<EmbeddedWorkerRegistry>;
friend class EmbeddedWorkerInstance;
typedef std::map<int, EmbeddedWorkerInstance*> WorkerInstanceMap;
typedef std::map<int, IPC::Sender*> ProcessToSenderMap;
EmbeddedWorkerRegistry(
const base::WeakPtr<ServiceWorkerContextCore>& context,
int initial_embedded_worker_id);
~EmbeddedWorkerRegistry();
ServiceWorkerStatusCode Send(int process_id, IPC::Message* message);
// RemoveWorker is called when EmbeddedWorkerInstance is destructed.
// |process_id| could be invalid (i.e. -1) if it's not running.
void RemoveWorker(int process_id, int embedded_worker_id);
base::WeakPtr<ServiceWorkerContextCore> context_;
WorkerInstanceMap worker_map_;
ProcessToSenderMap process_sender_map_;
// Map from process_id to embedded_worker_id.
// This map only contains running workers.
std::map<int, std::set<int> > worker_process_map_;
int next_embedded_worker_id_;
const int initial_embedded_worker_id_;
DISALLOW_COPY_AND_ASSIGN(EmbeddedWorkerRegistry);
};
} // namespace content
#endif // CONTENT_BROWSER_SERVICE_WORKER_EMBEDDED_WORKER_REGISTRY_H_
|
