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/**
* @file
* @author 2012-2013 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de)
* @copyright Simplified BSD
*
* @cond
* This program is free software: you can redistribute it and/or modify
* it under the terms of the FreeBSD license as published by the FreeBSD
* project.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the FreeBSD license along with this
* program. If not, see <http://www.opensource.org/licenses/bsd-license>.
* @endcond
*/
#ifndef DIRMONINVOKER_H_W09J90F0
#define DIRMONINVOKER_H_W09J90F0
#include <uscxml/config.h>
#include <uscxml/Interpreter.h>
#include <map>
#include <sys/stat.h>
#ifdef BUILD_AS_PLUGINS
#include "uscxml/plugins/Plugins.h"
#endif
namespace uscxml {
class DirectoryWatchMonitor;
class DirectoryWatch {
public:
enum Action {
ADDED = 1,
MODIFIED = 2,
DELETED = 4,
EXISTING = 8
};
DirectoryWatch(const std::string& dir, bool recurse = false) : _dir(dir), _recurse(recurse), _lastChecked(0) {}
~DirectoryWatch();
void addMonitor(DirectoryWatchMonitor* monitor) {
_monitors.insert(monitor);
}
void removeMonitor(DirectoryWatchMonitor* monitor) {
_monitors.erase(monitor);
}
void updateEntries(bool reportAsExisting = false);
void reportAsDeleted();
std::map<std::string, struct stat> getAllEntries() {
std::map<std::string, struct stat> entries;
entries.insert(_knownEntries.begin(), _knownEntries.end());
std::map<std::string, DirectoryWatch*>::iterator dirIter = _knownDirs.begin();
while(dirIter != _knownDirs.end()) {
std::map<std::string, struct stat> dirEntries = dirIter->second->getAllEntries();
std::map<std::string, struct stat>::iterator dirEntryIter = dirEntries.begin();
while(dirEntryIter != dirEntries.end()) {
entries[dirIter->first + '/' + dirEntryIter->first] = dirEntryIter->second;
dirEntryIter++;
}
dirIter++;
}
return entries;
}
protected:
DirectoryWatch(const std::string& dir, const std::string& relDir) : _dir(dir), _relDir(relDir), _recurse(true), _lastChecked(0) {}
std::string _dir;
std::string _relDir;
bool _recurse;
std::map<std::string, struct stat> _knownEntries;
std::map<std::string, DirectoryWatch*> _knownDirs;
std::set<DirectoryWatchMonitor*> _monitors;
typedef std::set<DirectoryWatchMonitor*> _monitors_t;
time_t _lastChecked;
};
class DirectoryWatchMonitor {
public:
virtual void handleChanges(DirectoryWatch::Action action, const std::string dir, const std::string file, struct stat fileStat) = 0;
};
class DirMonInvoker : public InvokerImpl, public DirectoryWatchMonitor {
public:
DirMonInvoker();
virtual ~DirMonInvoker();
virtual boost::shared_ptr<InvokerImpl> create(InterpreterImpl* interpreter);
virtual std::list<std::string> getNames() {
std::list<std::string> names;
names.push_back("dirmon");
names.push_back("DirectoryMonitor");
names.push_back("http://uscxml.tk.informatik.tu-darmstadt.de/#dirmon");
return names;
}
virtual Data getDataModelVariables();
virtual void send(const SendRequest& req);
virtual void cancel(const std::string sendId);
virtual void invoke(const InvokeRequest& req);
virtual void handleChanges(DirectoryWatch::Action action, const std::string dir, const std::string file, struct stat fileStat);
static void run(void* instance);
protected:
bool _reportExisting;
bool _reportHidden;
bool _recurse;
std::string _dir;
std::set<std::string> _suffixes;
bool _isRunning;
tthread::thread* _thread;
tthread::recursive_mutex _mutex;
DirectoryWatch* _watcher;
};
#ifdef BUILD_AS_PLUGINS
PLUMA_INHERIT_PROVIDER(DirMonInvoker, InvokerImpl);
#endif
}
#endif /* end of include guard: DIRMONINVOKER_H_W09J90F0 */
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