libdap++ Updated for version 3.8.2

HTTPCacheInterruptHandler.h

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00001 
00002 // -*- mode: c++; c-basic-offset:4 -*-
00003 
00004 // This file is part of libdap, A C++ implementation of the OPeNDAP Data
00005 // Access Protocol.
00006 
00007 // Copyright (c) 2002,2003 OPeNDAP, Inc.
00008 // Author: James Gallagher <jgallagher@opendap.org>
00009 //
00010 // This library is free software; you can redistribute it and/or
00011 // modify it under the terms of the GNU Lesser General Public
00012 // License as published by the Free Software Foundation; either
00013 // version 2.1 of the License, or (at your option) any later version.
00014 //
00015 // This library is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00023 //
00024 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
00025 
00026 #ifndef http_cache_interrupt_handler_h
00027 #define http_cache_interrupt_handler_h
00028 
00029 #include <signal.h>
00030 
00031 #include <cassert>
00032 #include <iostream>
00033 #include <algorithm>
00034 
00035 #include "HTTPCache.h"
00036 #include "EventHandler.h"
00037 #include "debug.h"
00038 
00039 namespace libdap
00040 {
00041 
00042 static void
00043 unlink_file(const string &f)
00044 {
00045     unlink(f.c_str());
00046 }
00047 
00057 class HTTPCacheInterruptHandler : public EventHandler
00058 {
00059 private:
00060 
00061 public:
00063     HTTPCacheInterruptHandler()
00064     {}
00065 
00067     virtual ~HTTPCacheInterruptHandler()
00068     {}
00069 
00077     virtual void handle_signal(int signum)
00078     {
00079         assert(signum == SIGINT);
00080         DBG(cerr << "Inside the HTTPCacheInterruptHandler." << endl);
00081 
00082         vector<string> *of = &HTTPCache::_instance->d_open_files;
00083 
00084         DBG(copy(of->begin(), of->end(),
00085                  ostream_iterator<string>(cerr, "\n")));
00086 
00087         for_each(of->begin(), of->end(), unlink_file);
00088 
00089         HTTPCache::delete_instance();
00090     }
00091 };
00092 
00093 } // namespace libdap
00094 
00095 #endif // http_cache_interrupt_handler_h