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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/shared_impl/ppb_tcp_socket_shared.h"
#include "base/check.h"
#include "base/notreached.h"
namespace ppapi {
TCPSocketState::TCPSocketState(StateType state)
: state_(state), pending_transition_(NONE) {
DCHECK(state_ == INITIAL || state_ == CONNECTED);
}
TCPSocketState::~TCPSocketState() {}
void TCPSocketState::SetPendingTransition(TransitionType pending_transition) {
DCHECK(IsValidTransition(pending_transition));
pending_transition_ = pending_transition;
}
void TCPSocketState::CompletePendingTransition(bool success) {
switch (pending_transition_) {
case NONE:
NOTREACHED();
case BIND:
if (success)
state_ = BOUND;
break;
case CONNECT:
state_ = success ? CONNECTED : CLOSED;
break;
case SSL_CONNECT:
state_ = success ? SSL_CONNECTED : CLOSED;
break;
case LISTEN:
state_ = success ? LISTENING : CLOSED;
break;
case CLOSE:
state_ = CLOSED;
break;
}
pending_transition_ = NONE;
}
void TCPSocketState::DoTransition(TransitionType transition, bool success) {
SetPendingTransition(transition);
CompletePendingTransition(success);
}
bool TCPSocketState::IsValidTransition(TransitionType transition) const {
if (pending_transition_ != NONE && transition != CLOSE)
return false;
switch (transition) {
case NONE:
return false;
case BIND:
return state_ == INITIAL;
case CONNECT:
return state_ == INITIAL || state_ == BOUND;
case SSL_CONNECT:
return state_ == CONNECTED;
case LISTEN:
return state_ == BOUND;
case CLOSE:
return true;
}
NOTREACHED();
}
bool TCPSocketState::IsPending(TransitionType transition) const {
return pending_transition_ == transition;
}
bool TCPSocketState::IsConnected() const {
return state_ == CONNECTED || state_ == SSL_CONNECTED;
}
bool TCPSocketState::IsBound() const {
return state_ != INITIAL && state_ != CLOSED;
}
} // namespace ppapi
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