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source: code/archive/shader/src/network/PacketBuffer.cc @ 10225

Last change on this file since 10225 was 1505, checked in by rgrieder, 17 years ago

f* svn: It doesn't even inform you if you attempt to set a non existing property. It is svn:eol-style and not eol-style when using the command by the way…

  • Property svn:eol-style set to native
File size: 3.9 KB
Line 
1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Oliver Scheuss, (C) 2007
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29// C++ PacketBuffer
30// d
31// Author Oliver Scheuss
32
33#include "PacketBuffer.h"
34
35#include <iostream>
36#include <queue>
37#include <string>
38#include <boost/bind.hpp>
39#include <boost/thread/mutex.hpp>
40
41namespace network
42{
43   boost::recursive_mutex PacketBuffer::mutex_;
44
45  PacketBuffer::PacketBuffer() {
46    closed=false;
47    first=NULL;
48    last=NULL;
49  }
50  //this is needed in order to make the packetbuffer threadsafe
51
52
53  bool PacketBuffer::push(ENetEvent *ev) {
54    boost::recursive_mutex::scoped_lock lock(mutex_);
55    //std::cout << "event size inside packetbuffer " << ev->packet->dataLength << std::endl;
56    //   if(closed)
57    //     return false;
58    // first element?
59    if(first==NULL){
60      first=new QueueItem;
61      last=first;
62      last->next=NULL;
63      // change this!!!!!!!  ---- we are not doing stl so we won't change this
64      last->event = ev;
65      //last->address = ev->peer->address;
66    } else {
67      //insert a new element at the bottom
68      last->next = new QueueItem;
69      last=last->next;
70      // initialize last->next
71      last->next=NULL;
72      // save the packet to the new element
73      last->event = ev;
74      //last->address = ev->peer->address;
75    }
76    lock.unlock();
77    return true;
78  }
79
80  //returns the first element in the list without deleting it but
81  //moving first pointer to next element
82  /*ENetPacket *PacketBuffer::pop() {
83    ENetAddress address;
84    return pop(address);
85  }*/
86 
87  ENetEvent *PacketBuffer::pop(){
88    boost::recursive_mutex::scoped_lock lock(mutex_);
89    //std::cout << "packetbuffer pop(address)" << std::endl;
90    if(first!=NULL /*&& !closed*/){
91      QueueItem *temp = first;
92      // get packet
93      ENetEvent *ev=first->event;
94      //address = first->address;
95      // remove first element
96      first = first->next;
97      delete temp;
98      lock.unlock();
99      //std::cout << "pop(address) size of packet " << pck->dataLength << std::endl;
100      return ev;
101    } else{
102      lock.unlock();
103      return NULL;
104    }
105  }
106
107  /*ENetPacket *PacketBuffer::pop(ENetAddress &address) {
108    boost::recursive_mutex::scoped_lock lock(mutex_);
109    //std::cout << "packetbuffer pop(address)" << std::endl;
110    if(first!=NULL ){
111      QueueItem *temp = first;
112      // get packet
113      ENetPacket *pck=first->event->packet;
114      address = first->event->peer->address;
115      // remove first element
116      first = first->next;
117      delete temp;
118      lock.unlock();
119      //std::cout << "pop(address) size of packet " << pck->dataLength << std::endl;
120      return pck;
121    } else{
122      lock.unlock();
123      return NULL;
124    }
125  }*/
126
127  bool PacketBuffer::isEmpty() {
128    return (first==NULL);
129  }
130
131  void PacketBuffer::print() {
132    QueueItem *temp=first;
133    while(temp!=NULL){
134      //    std::cout << temp->packet->data << std::endl;
135      temp=temp->next;
136    }
137
138  }
139
140  bool PacketBuffer::isClosed() {
141    return closed;
142  }
143
144  void PacketBuffer::setClosed(bool value){
145    closed=value;
146    return;
147  }
148
149} // namespace network
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