EMANE  1.2.1
transportfactory.cc
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2013,2015 - Adjacent Link LLC, Bridgewater, New Jersey
3  * Copyright (c) 2008-2009 - DRS CenGen, LLC, Columbia, Maryland
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * * Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  * * Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in
14  * the documentation and/or other materials provided with the
15  * distribution.
16  * * Neither the name of DRS CenGen, LLC nor the names of its
17  * contributors may be used to endorse or promote products derived
18  * from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #include "transportfactory.h"
35 #include <dlfcn.h>
36 
37 EMANE::TransportFactory::TransportFactory(const std::string & sLibraryName):
38  pLibHandle_{},
39  createTransportFunc_{},
40  destroyTransportFunc_{}
41 {
42  if((pLibHandle_ = dlopen(sLibraryName.c_str(), RTLD_NOW)) == 0)
43  {
44  throw Utils::FactoryException(dlerror());
45  }
46 
47  if((createTransportFunc_ =
48  reinterpret_cast<CreateTransportFunc>((void (*)())(dlsym(pLibHandle_,"create")))) == 0)
49  {
50  dlclose(pLibHandle_);
51  throw makeException<Utils::FactoryException>("%s missing create symbol. (Missing DECLARE_TRANSPORT()?)",
52  sLibraryName.c_str());
53  }
54 
55  if((destroyTransportFunc_ =
56  reinterpret_cast<DestroyTransportFunc>((void (*)())dlsym(pLibHandle_,"destroy"))) == 0)
57  {
58  dlclose(pLibHandle_);
59  throw makeException<Utils::FactoryException>("%s missing destroy symbol. (Missing DECLARE_TRANSPORT()?)",
60  sLibraryName.c_str());
61  }
62 }
63 
65 {
66  dlclose(pLibHandle_);
67 }
68 
70 {
71  return createTransportFunc_(id, pPlatformService);
72 }
73 
75 {
76  destroyTransportFunc_(pTransport);
77 }
Base class for all transports.
Definition: transport.h:49
The PlatformServiceProvider interface provides access to emulator services.
Exception thrown during the creation of a layer factory.
Transport * createTransport(NEMId nemId, PlatformServiceProvider *pPlatformService) const
std::uint16_t NEMId
Definition: types.h:52
void destoryTransport(Transport *pTransport) const
TransportFactory(const std::string &sLibraryName)