Fawkes API
Fawkes Development Version
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00001 00002 /*************************************************************************** 00003 * fam.h - File Alteration Monitor 00004 * 00005 * Created: Fri May 23 11:38:41 2008 00006 * Copyright 2006-2008 Tim Niemueller [www.niemueller.de] 00007 * 00008 ****************************************************************************/ 00009 00010 /* This program is free software; you can redistribute it and/or modify 00011 * it under the terms of the GNU General Public License as published by 00012 * the Free Software Foundation; either version 2 of the License, or 00013 * (at your option) any later version. 00014 * 00015 * This program 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 00018 * GNU Library General Public License for more details. 00019 * 00020 * Read the full text in the LICENSE.GPL file in the doc directory. 00021 */ 00022 00023 #ifndef __UTILS_SYSTEM_FAM_H_ 00024 #define __UTILS_SYSTEM_FAM_H_ 00025 00026 #include <core/utils/lock_list.h> 00027 00028 #include <sys/types.h> 00029 #include <map> 00030 #include <string> 00031 #include <regex.h> 00032 00033 namespace fawkes { 00034 00035 class FamListener 00036 { 00037 public: 00038 virtual ~FamListener(); 00039 00040 static const unsigned int FAM_ACCESS; 00041 static const unsigned int FAM_MODIFY; 00042 static const unsigned int FAM_ATTRIB; 00043 static const unsigned int FAM_CLOSE_WRITE; 00044 static const unsigned int FAM_CLOSE_NOWRITE; 00045 static const unsigned int FAM_CLOSE; 00046 static const unsigned int FAM_OPEN; 00047 static const unsigned int FAM_MOVED_FROM; 00048 static const unsigned int FAM_MOVED_TO; 00049 static const unsigned int FAM_MOVE; 00050 static const unsigned int FAM_CREATE; 00051 static const unsigned int FAM_DELETE; 00052 static const unsigned int FAM_DELETE_SELF; 00053 static const unsigned int FAM_MOVE_SELF; 00054 00055 static const unsigned int FAM_UNMOUNT; 00056 static const unsigned int FAM_Q_OVERFLOW; 00057 static const unsigned int FAM_IGNORED; 00058 00059 static const unsigned int FAM_ONLYDIR; 00060 static const unsigned int FAM_DONT_FOLLOW; 00061 static const unsigned int FAM_MASK_ADD; 00062 static const unsigned int FAM_ISDIR; 00063 static const unsigned int FAM_ONESHOT; 00064 00065 static const unsigned int FAM_ALL_EVENTS; 00066 00067 00068 virtual void fam_event(const char *filename, unsigned int mask) = 0; 00069 }; 00070 00071 class FileAlterationMonitor 00072 { 00073 public: 00074 FileAlterationMonitor(); 00075 ~FileAlterationMonitor(); 00076 00077 void watch_dir(const char *dirpath); 00078 void watch_file(const char *filepath); 00079 void add_filter(const char *regex); 00080 00081 void process_events(int timeout = 0); 00082 void interrupt(); 00083 00084 void add_listener(FamListener *listener); 00085 void remove_listener(FamListener *listener); 00086 00087 private: 00088 LockList<FamListener *> __listeners; 00089 LockList<FamListener *>::iterator __lit; 00090 LockList<regex_t *> __regexes; 00091 LockList<regex_t *>::iterator __rxit; 00092 00093 int __inotify_fd; 00094 char *__inotify_buf; 00095 size_t __inotify_bufsize; 00096 std::map<int, std::string> __inotify_watches; 00097 std::map<int, std::string>::iterator __inotify_wit; 00098 00099 bool __interrupted; 00100 bool __interruptible; 00101 int __pipe_fds[2]; 00102 }; 00103 00104 } // end of namespace fawkes 00105 00106 #endif