1 ////////////////////////////////////////////////////////////////////////////////
2 // Scorched3D (c) 2000-2011
3 //
4 // This file is part of Scorched3D.
5 //
6 // Scorched3D is free software; you can redistribute it and/or modify
7 // it under the terms of the GNU General Public License as published by
8 // the Free Software Foundation; either version 2 of the License, or
9 // (at your option) any later version.
10 //
11 // Scorched3D is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15 //
16 // You should have received a copy of the GNU General Public License along
17 // with this program; if not, write to the Free Software Foundation, Inc.,
18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 ////////////////////////////////////////////////////////////////////////////////
20
21
22 #include <net/NetMessageHandler.h>
23 #include <net/NetMessagePool.h>
24
~NetMessageHandlerI()25 NetMessageHandlerI::~NetMessageHandlerI()
26 {
27 }
28
NetMessageHandler()29 NetMessageHandler::NetMessageHandler() :
30 handler_(0), messagesMutex_(0), messagesWaiting_(false)
31 {
32 messagesMutex_ = SDL_CreateMutex();
33 }
34
~NetMessageHandler()35 NetMessageHandler::~NetMessageHandler()
36 {
37 SDL_LockMutex(messagesMutex_);
38 while (!messages_.empty())
39 {
40 NetMessage *message = messages_.front();
41 messages_.pop_front();
42 NetMessagePool::instance()->addToPool(message);
43 }
44 SDL_UnlockMutex(messagesMutex_);
45
46 SDL_DestroyMutex(messagesMutex_);
47 }
48
addMessage(NetMessage * message)49 void NetMessageHandler::addMessage(NetMessage *message)
50 {
51 SDL_LockMutex(messagesMutex_);
52 messages_.push_back(message);
53 messagesWaiting_ = true;
54 SDL_UnlockMutex(messagesMutex_);
55 }
56
processMessages()57 int NetMessageHandler::processMessages()
58 {
59 int result = 0;
60 while (processSingleMessage())
61 {
62 result++;
63 }
64 return result;
65 }
66
processSingleMessage()67 bool NetMessageHandler::processSingleMessage()
68 {
69 if (!messagesWaiting_) return false;
70
71 // Get the list of messages that should be processed
72 // Process one at a time, incase this method is called re-entrantly
73 NetMessage *message = 0;
74 SDL_LockMutex(messagesMutex_);
75 if (!messages_.empty())
76 {
77 message = messages_.front();
78 messages_.pop_front();
79 }
80 messagesWaiting_ = !messages_.empty();
81 SDL_UnlockMutex(messagesMutex_);
82
83 if (message)
84 {
85 // Call user to process message
86 if (handler_) handler_->processMessage(*message);
87
88 // Delete message
89 NetMessagePool::instance()->addToPool(message);
90 }
91 return (message != 0);
92 }
93
setMessageHandler(NetMessageHandlerI * handler)94 void NetMessageHandler::setMessageHandler(NetMessageHandlerI *handler)
95 {
96 handler_ = handler;
97 }
98