summaryrefslogtreecommitdiffstats
path: root/dom/cache/StreamControl.cpp
blob: aab1766662d28e0359edfd9d44f60382936cec7e (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
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
/* -*- 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/. */

#include "mozilla/dom/cache/StreamControl.h"

namespace mozilla {
namespace dom {
namespace cache {

void
StreamControl::AddReadStream(ReadStream::Controllable* aReadStream)
{
  AssertOwningThread();
  MOZ_DIAGNOSTIC_ASSERT(aReadStream);
  MOZ_ASSERT(!mReadStreamList.Contains(aReadStream));
  mReadStreamList.AppendElement(aReadStream);
}

void
StreamControl::ForgetReadStream(ReadStream::Controllable* aReadStream)
{
  AssertOwningThread();
  MOZ_ALWAYS_TRUE(mReadStreamList.RemoveElement(aReadStream));
}

void
StreamControl::NoteClosed(ReadStream::Controllable* aReadStream,
                          const nsID& aId)
{
  AssertOwningThread();
  ForgetReadStream(aReadStream);
  NoteClosedAfterForget(aId);
}

StreamControl::~StreamControl()
{
  // owning thread only, but can't call virtual AssertOwningThread in destructor
  MOZ_DIAGNOSTIC_ASSERT(mReadStreamList.IsEmpty());
}

void
StreamControl::CloseReadStreams(const nsID& aId)
{
  AssertOwningThread();
#if defined(DEBUG) || !defined(RELEASE_OR_BETA)
  uint32_t closedCount = 0;
#endif

  ReadStreamList::ForwardIterator iter(mReadStreamList);
  while (iter.HasMore()) {
    RefPtr<ReadStream::Controllable> stream = iter.GetNext();
    if (stream->MatchId(aId)) {
      stream->CloseStream();
#if defined(DEBUG) || !defined(RELEASE_OR_BETA)
      closedCount += 1;
#endif
    }
  }

  MOZ_DIAGNOSTIC_ASSERT(closedCount > 0);
}

void
StreamControl::CloseAllReadStreams()
{
  AssertOwningThread();

  ReadStreamList::ForwardIterator iter(mReadStreamList);
  while (iter.HasMore()) {
    iter.GetNext()->CloseStream();
  }
}

void
StreamControl::CloseAllReadStreamsWithoutReporting()
{
  AssertOwningThread();

  ReadStreamList::ForwardIterator iter(mReadStreamList);
  while (iter.HasMore()) {
    RefPtr<ReadStream::Controllable> stream = iter.GetNext();
    // Note, we cannot trigger IPC traffic here.  So use
    // CloseStreamWithoutReporting().
    stream->CloseStreamWithoutReporting();
  }
}

bool
StreamControl::HasEverBeenRead() const
{
  ReadStreamList::ForwardIterator iter(mReadStreamList);
  while (iter.HasMore()) {
    if (iter.GetNext()->HasEverBeenRead()) {
      return true;
    }
  }
  return false;
}

} // namespace cache
} // namespace dom
} // namespace mozilla