4 // Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
5 // Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
6 // Stefan Bund <g0dil@berlios.de>
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
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.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 \brief PacketImpl non-inline non-template implementation */
26 //#include "PacketImpl.ih"
32 //#include "PacketImpl.mpp"
34 ///////////////////////////////cc.p////////////////////////////////////////
36 ///////////////////////////////////////////////////////////////////////////
37 // senf::detail::PacketImpl
41 prefix_ void senf::detail::PacketImpl::appendInterpreter(PacketInterpreterBase * p)
43 interpreters_.push_back(*p);
47 prefix_ void senf::detail::PacketImpl::prependInterpreter(PacketInterpreterBase * p)
49 interpreters_.push_front(*p);
55 prefix_ void senf::detail::PacketImpl::clear(PacketData * self)
57 PacketInterpreterBase * n (next(static_cast<PacketInterpreterBase*>(self)));
59 truncateInterpreters(n);
60 iterator first (boost::next(begin(),self->begin_));
61 data_.erase(first, boost::next(begin(),self->end_));
62 updateIterators(self,self->begin_,-self->size());
67 prefix_ void senf::detail::PacketImpl::eraseInterpreters(interpreter_list::iterator b,
68 interpreter_list::iterator e)
71 interpreter_list::iterator i (b++);
72 PacketInterpreterBase * p (&(*i));
73 interpreters_.erase(i);
74 p->releaseImpl(); // might call PacketImpl::release and might delete p
78 prefix_ void senf::detail::PacketImpl::updateIterators(PacketData * self, difference_type pos,
81 // I hate to change the PacketData representation from here, I would have preferred to let
82 // PacketData have authority over this but trying that just get's to convoluted so I choose the
83 // simple solution and made PacketImpl a friend of PacketData.
85 interpreter_list::iterator i (interpreters_.begin());
87 // There are three types of packets
88 // a) Those which come before 'self' in the interpreter chain
90 // c) Those that come afterwards
91 // For a), the change must be inside the packet since 'self' must be within those packets
92 // For b), the change must also be within since that's the packet we are changeing
93 // For c), the change must be outside the packet (we don't allow an upper packet to mess with
94 // the the data owned by a packet further down the chain). It can be before or after the
98 for (; &(*i) != static_cast<PacketInterpreterBase*>(self); ++i) i->end_ += n;
104 interpreter_list::iterator const i_end (interpreters_.end());
106 if (pos <= difference_type(i->begin_))
107 // pos is before the packet, it must then be before all futher packets ...
108 for (; i != i_end; ++i) {
112 // else pos is after the packet and we don't need to change anything ...
115 ///////////////////////////////cc.e////////////////////////////////////////
117 //#include "PacketImpl.mpp"
123 // c-file-style: "senf"
124 // indent-tabs-mode: nil
125 // ispell-local-dictionary: "american"
126 // compile-command: "scons -u test"
127 // comment-column: 40