summaryrefslogtreecommitdiffstats
path: root/netwerk/base/nsUDPSocket.h
blob: f8ae87ceeb8f6d9dc997500080c0c24b78ea217e (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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
/* vim:set ts=2 sw=2 et cindent: */
/* 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 nsUDPSocket_h__
#define nsUDPSocket_h__

#include "nsIUDPSocket.h"
#include "mozilla/Mutex.h"
#include "nsIOutputStream.h"
#include "nsAutoPtr.h"
#include "nsCycleCollectionParticipant.h"

//-----------------------------------------------------------------------------

namespace mozilla {
namespace net {

class nsUDPSocket final : public nsASocketHandler
                        , public nsIUDPSocket
{
public:
  NS_DECL_THREADSAFE_ISUPPORTS
  NS_DECL_NSIUDPSOCKET

  // nsASocketHandler methods:
  virtual void OnSocketReady(PRFileDesc* fd, int16_t outFlags) override;
  virtual void OnSocketDetached(PRFileDesc* fd) override;
  virtual void IsLocal(bool* aIsLocal) override;

  uint64_t ByteCountSent() override { return mByteWriteCount; }
  uint64_t ByteCountReceived() override { return mByteReadCount; }

  void AddOutputBytes(uint64_t aBytes);

  nsUDPSocket();

private:
  virtual ~nsUDPSocket();

  void OnMsgClose();
  void OnMsgAttach();

  // try attaching our socket (mFD) to the STS's poll list.
  nsresult TryAttach();

  friend class SetSocketOptionRunnable;
  nsresult SetSocketOption(const PRSocketOptionData& aOpt);
  nsresult JoinMulticastInternal(const PRNetAddr& aAddr,
                                 const PRNetAddr& aIface);
  nsresult LeaveMulticastInternal(const PRNetAddr& aAddr,
                                  const PRNetAddr& aIface);
  nsresult SetMulticastInterfaceInternal(const PRNetAddr& aIface);

  void SaveNetworkStats(bool aEnforce);

  void CloseSocket();

  // lock protects access to mListener;
  // so mListener is not cleared while being used/locked.
  Mutex                                mLock;
  PRFileDesc                          *mFD;
  NetAddr                              mAddr;
  uint32_t                             mAppId;
  bool                                 mIsInIsolatedMozBrowserElement;
  nsCOMPtr<nsIUDPSocketListener>       mListener;
  nsCOMPtr<nsIEventTarget>             mListenerTarget;
  bool                                 mAttached;
  RefPtr<nsSocketTransportService>     mSts;

  uint64_t   mByteReadCount;
  uint64_t   mByteWriteCount;
};

//-----------------------------------------------------------------------------

class nsUDPMessage : public nsIUDPMessage
{
public:
  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsUDPMessage)
  NS_DECL_NSIUDPMESSAGE

  nsUDPMessage(NetAddr* aAddr,
               nsIOutputStream* aOutputStream,
               FallibleTArray<uint8_t>& aData);

private:
  virtual ~nsUDPMessage();

  NetAddr mAddr;
  nsCOMPtr<nsIOutputStream> mOutputStream;
  FallibleTArray<uint8_t> mData;
  JS::Heap<JSObject*> mJsobj;
};


//-----------------------------------------------------------------------------

class nsUDPOutputStream : public nsIOutputStream
{
public:
  NS_DECL_THREADSAFE_ISUPPORTS
  NS_DECL_NSIOUTPUTSTREAM

  nsUDPOutputStream(nsUDPSocket* aSocket,
                    PRFileDesc* aFD,
                    PRNetAddr& aPrClientAddr);

private:
  virtual ~nsUDPOutputStream();

  RefPtr<nsUDPSocket>       mSocket;
  PRFileDesc                  *mFD;
  PRNetAddr                   mPrClientAddr;
  bool                        mIsClosed;
};

} // namespace net
} // namespace mozilla

#endif // nsUDPSocket_h__