• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "ppapi/shared_impl/ppb_tcp_socket_shared.h"
6 
7 #include "base/logging.h"
8 
9 namespace ppapi {
10 
TCPSocketState(StateType state)11 TCPSocketState::TCPSocketState(StateType state)
12     : state_(state),
13       pending_transition_(NONE) {
14   DCHECK(state_ == INITIAL || state_ == CONNECTED);
15 }
16 
~TCPSocketState()17 TCPSocketState::~TCPSocketState() {
18 }
19 
SetPendingTransition(TransitionType pending_transition)20 void TCPSocketState::SetPendingTransition(TransitionType pending_transition) {
21   DCHECK(IsValidTransition(pending_transition));
22   pending_transition_ = pending_transition;
23 }
24 
CompletePendingTransition(bool success)25 void TCPSocketState::CompletePendingTransition(bool success) {
26   switch (pending_transition_) {
27     case NONE:
28       NOTREACHED();
29       break;
30     case BIND:
31       if (success)
32         state_ = BOUND;
33       break;
34     case CONNECT:
35       state_ = success ? CONNECTED : CLOSED;
36       break;
37     case SSL_CONNECT:
38       state_ = success ? SSL_CONNECTED : CLOSED;
39       break;
40     case LISTEN:
41       if (success)
42         state_ = LISTENING;
43       break;
44     case CLOSE:
45       state_ = CLOSED;
46       break;
47   }
48   pending_transition_ = NONE;
49 }
50 
DoTransition(TransitionType transition,bool success)51 void TCPSocketState::DoTransition(TransitionType transition, bool success) {
52   SetPendingTransition(transition);
53   CompletePendingTransition(success);
54 }
55 
IsValidTransition(TransitionType transition) const56 bool TCPSocketState::IsValidTransition(TransitionType transition) const {
57   if (pending_transition_ != NONE && transition != CLOSE)
58     return false;
59 
60   switch (transition) {
61     case NONE:
62       return false;
63     case BIND:
64       return state_ == INITIAL;
65     case CONNECT:
66       return state_ == INITIAL || state_ == BOUND;
67     case SSL_CONNECT:
68       return state_ == CONNECTED;
69     case LISTEN:
70       return state_ == BOUND;
71     case CLOSE:
72       return true;
73   }
74   NOTREACHED();
75   return false;
76 }
77 
IsPending(TransitionType transition) const78 bool TCPSocketState::IsPending(TransitionType transition) const {
79   return pending_transition_ == transition;
80 }
81 
IsConnected() const82 bool TCPSocketState::IsConnected() const {
83   return state_ == CONNECTED || state_ == SSL_CONNECTED;
84 }
85 
IsBound() const86 bool TCPSocketState::IsBound() const {
87   return state_ != INITIAL && state_ != CLOSED;
88 }
89 
90 }  // namespace ppapi
91