00001 /* 00002 * IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. By 00003 * downloading, copying, installing or using the software you agree to 00004 * this license. If you do not agree to this license, do not download, 00005 * install, copy or use the software. 00006 * 00007 * Intel Open Source License 00008 * 00009 * Copyright (c) 2004 Intel Corporation. All rights reserved. 00010 * 00011 * Redistribution and use in source and binary forms, with or without 00012 * modification, are permitted provided that the following conditions are 00013 * met: 00014 * 00015 * Redistributions of source code must retain the above copyright 00016 * notice, this list of conditions and the following disclaimer. 00017 * 00018 * Redistributions in binary form must reproduce the above copyright 00019 * notice, this list of conditions and the following disclaimer in the 00020 * documentation and/or other materials provided with the distribution. 00021 * 00022 * Neither the name of the Intel Corporation nor the names of its 00023 * contributors may be used to endorse or promote products derived from 00024 * this software without specific prior written permission. 00025 * 00026 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00027 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00028 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00029 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE INTEL OR 00030 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00031 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00032 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00033 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00034 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00035 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00036 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00037 */ 00038 #ifndef _FILE_CONVERGENCE_LAYER_H_ 00039 #define _FILE_CONVERGENCE_LAYER_H_ 00040 00041 #include "ConvergenceLayer.h" 00042 #include <oasys/thread/Thread.h> 00043 00044 namespace dtn { 00045 00046 class FileConvergenceLayer : public ConvergenceLayer { 00047 public: 00051 FileConvergenceLayer(); 00052 00054 00055 virtual bool interface_up(Interface* iface, 00056 int argc, const char* argv[]); 00057 virtual bool interface_down(Interface* iface); 00058 virtual bool open_contact(const ContactRef& contact); 00059 virtual bool close_contact(const ContactRef& contact); 00060 virtual void send_bundle(const ContactRef& contact, Bundle* bundle); 00061 00062 protected: 00066 static const int CURRENT_VERSION = 0x1; 00067 00071 struct FileHeader { 00072 u_int8_t version; 00073 u_int8_t pad; 00074 u_int16_t header_length; 00075 u_int32_t bundle_length; 00076 } __attribute__((packed)); 00077 00081 bool extract_dir(const char* nexthop, std::string* dirp); 00082 00087 bool validate_dir(const std::string& dir); 00088 00093 class Scanner : public CLInfo, public oasys::Logger, public oasys::Thread { 00094 public: 00098 Scanner(int secs_per_scan, const std::string& dir); 00099 00103 void stop(); 00104 00105 protected: 00109 void run(); 00110 00111 int secs_per_scan_; 00112 std::string dir_; 00113 bool run_; 00114 }; 00115 }; 00116 00117 } // namespace dtn 00118 00119 #endif /* _FILE_CONVERGENCE_LAYER_H_ */