File: ServiceWorkerRegistrationInfo.h

package info (click to toggle)
thunderbird 1:60.8.0-1~deb9u1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 2,339,208 kB
  • sloc: cpp: 5,456,704; ansic: 2,360,384; python: 596,095; asm: 340,963; java: 326,291; xml: 258,664; sh: 84,366; makefile: 23,702; perl: 17,317; objc: 3,768; yacc: 1,766; ada: 1,681; lex: 1,364; pascal: 1,264; cs: 879; exp: 527; php: 436; lisp: 258; ruby: 153; awk: 152; sed: 53; csh: 27
file content (190 lines) | stat: -rw-r--r-- 5,901 bytes parent folder | download | duplicates (7)
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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_dom_serviceworkerregistrationinfo_h
#define mozilla_dom_serviceworkerregistrationinfo_h

#include "mozilla/dom/ServiceWorkerInfo.h"
#include "mozilla/dom/ServiceWorkerRegistrationBinding.h"
#include "mozilla/dom/ServiceWorkerRegistrationDescriptor.h"
#include "nsProxyRelease.h"

namespace mozilla {
namespace dom {

class ServiceWorkerRegistrationInfo final
    : public nsIServiceWorkerRegistrationInfo {
  nsCOMPtr<nsIPrincipal> mPrincipal;
  ServiceWorkerRegistrationDescriptor mDescriptor;
  nsTArray<nsCOMPtr<nsIServiceWorkerRegistrationInfoListener>> mListeners;

  uint32_t mControlledClientsCounter;
  uint32_t mDelayMultiplier;

  enum { NoUpdate, NeedTimeCheckAndUpdate, NeedUpdate } mUpdateState;

  // Timestamp to track SWR's last update time
  PRTime mCreationTime;
  TimeStamp mCreationTimeStamp;
  // The time of update is 0, if SWR've never been updated yet.
  PRTime mLastUpdateTime;

  RefPtr<ServiceWorkerInfo> mEvaluatingWorker;
  RefPtr<ServiceWorkerInfo> mActiveWorker;
  RefPtr<ServiceWorkerInfo> mWaitingWorker;
  RefPtr<ServiceWorkerInfo> mInstallingWorker;

  virtual ~ServiceWorkerRegistrationInfo();

  // When unregister() is called on a registration, it is not immediately
  // removed since documents may be controlled. It is marked as
  // pendingUninstall and when all controlling documents go away, removed.
  bool mPendingUninstall;

 public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSISERVICEWORKERREGISTRATIONINFO

  ServiceWorkerRegistrationInfo(const nsACString& aScope,
                                nsIPrincipal* aPrincipal,
                                ServiceWorkerUpdateViaCache aUpdateViaCache);

  const nsCString& Scope() const;

  nsIPrincipal* Principal() const;

  bool IsPendingUninstall() const;

  void SetPendingUninstall();

  void ClearPendingUninstall();

  already_AddRefed<ServiceWorkerInfo> Newest() const {
    RefPtr<ServiceWorkerInfo> newest;
    if (mInstallingWorker) {
      newest = mInstallingWorker;
    } else if (mWaitingWorker) {
      newest = mWaitingWorker;
    } else {
      newest = mActiveWorker;
    }

    return newest.forget();
  }

  already_AddRefed<ServiceWorkerInfo> GetServiceWorkerInfoById(uint64_t aId);

  void StartControllingClient() {
    ++mControlledClientsCounter;
    mDelayMultiplier = 0;
  }

  void StopControllingClient() {
    MOZ_ASSERT(mControlledClientsCounter);
    --mControlledClientsCounter;
  }

  bool IsControllingClients() const {
    return mActiveWorker && mControlledClientsCounter;
  }

  void Clear();

  void TryToActivateAsync();

  void TryToActivate();

  void Activate();

  void FinishActivate(bool aSuccess);

  void RefreshLastUpdateCheckTime();

  bool IsLastUpdateCheckTimeOverOneDay() const;

  void MaybeScheduleTimeCheckAndUpdate();

  void MaybeScheduleUpdate();

  bool CheckAndClearIfUpdateNeeded();

  ServiceWorkerInfo* GetEvaluating() const;

  ServiceWorkerInfo* GetInstalling() const;

  ServiceWorkerInfo* GetWaiting() const;

  ServiceWorkerInfo* GetActive() const;

  ServiceWorkerInfo* GetByDescriptor(
      const ServiceWorkerDescriptor& aDescriptor) const;

  // Set the given worker as the evaluating service worker.  The worker
  // state is not changed.
  void SetEvaluating(ServiceWorkerInfo* aServiceWorker);

  // Remove an existing evaluating worker, if present.  The worker will
  // be transitioned to the Redundant state.
  void ClearEvaluating();

  // Remove an existing installing worker, if present.  The worker will
  // be transitioned to the Redundant state.
  void ClearInstalling();

  // Transition the current evaluating worker to be the installing worker.  The
  // worker's state is update to Installing.
  void TransitionEvaluatingToInstalling();

  // Transition the current installing worker to be the waiting worker.  The
  // worker's state is updated to Installed.
  void TransitionInstallingToWaiting();

  // Override the current active worker.  This is used during browser
  // initialization to load persisted workers.  Its also used to propagate
  // active workers across child processes in e10s.  This second use will
  // go away once the ServiceWorkerManager moves to the parent process.
  // The worker is transitioned to the Activated state.
  void SetActive(ServiceWorkerInfo* aServiceWorker);

  // Transition the current waiting worker to be the new active worker.  The
  // worker is updated to the Activating state.
  void TransitionWaitingToActive();

  // Determine if the registration is actively performing work.
  bool IsIdle() const;

  ServiceWorkerUpdateViaCache GetUpdateViaCache() const;

  void SetUpdateViaCache(ServiceWorkerUpdateViaCache aUpdateViaCache);

  int64_t GetLastUpdateTime() const;

  void SetLastUpdateTime(const int64_t aTime);

  const ServiceWorkerRegistrationDescriptor& Descriptor() const;

  uint32_t GetUpdateDelay();

 private:
  // Roughly equivalent to [[Update Registration State algorithm]]. Make sure
  // this is called *before* updating SW instances' state, otherwise they
  // may get CC-ed.
  void UpdateRegistrationState();

  // Used by devtools to track changes to the properties of
  // *nsIServiceWorkerRegistrationInfo*. Note, this doesn't necessarily need to
  // be in sync with the DOM registration objects, but it does need to be called
  // in the same task that changed |mInstallingWorker|, |mWaitingWorker| or
  // |mActiveWorker|.
  void NotifyChromeRegistrationListeners();

  static uint64_t GetNextId();
};

}  // namespace dom
}  // namespace mozilla

#endif  // mozilla_dom_serviceworkerregistrationinfo_h