Examples of org.jruby.util.WindowsFFI$Kernel32

com.sun.jna.examples.win32.Kernel32.FILE_NOTIFY_INFORMATION
A binding of a few key win32 functions we need to behave properly.


        protected synchronized void unwatch(File file) {
            FileInfo finfo = (FileInfo)fileMap.remove(file);
            if (finfo != null) {
                handleMap.remove(finfo.handle);
                Kernel32 klib = Kernel32.INSTANCE;
                klib.CloseHandle(finfo.handle);
            }
        }

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            int i = 0;
            for (Object[] keys = fileMap.keySet().toArray(); !fileMap.isEmpty();) {
                unwatch((File)keys[i++]);
            }
            
            Kernel32 klib = Kernel32.INSTANCE;
            klib.PostQueuedCompletionStatus(port, 0, null, null);
            klib.CloseHandle(port);
            port = null;
            watcher = null;
        }

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            klib.CloseHandle(port);
            port = null;
            watcher = null;
        }
        private String getSystemError(int code) {
            Kernel32 lib = Kernel32.INSTANCE;
            PointerByReference pref = new PointerByReference();
            lib.FormatMessage(Kernel32.FORMAT_MESSAGE_ALLOCATE_BUFFER
                              |Kernel32.FORMAT_MESSAGE_FROM_SYSTEM
                              |Kernel32.FORMAT_MESSAGE_IGNORE_INSERTS, 
                              null, code, 
                              0, pref, 0, null);
            String s = pref.getValue().getString(0, !Boolean.getBoolean("w32.ascii"));
            s = s.replace(".\r",".").replace(".\n",".");
            lib.LocalFree(pref.getValue());
            return s;
        }

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        private Map fileMap = new HashMap();
        private Map handleMap = new HashMap();
        
        private void handleChanges(FileInfo finfo) throws IOException {
            Kernel32 klib = Kernel32.INSTANCE;
            FILE_NOTIFY_INFORMATION fni = finfo.info;
            // Need an explicit read, since data was filled in asynchronously
            fni.read();
            do {
                FileEvent event = null;
                File file = new File(finfo.file, fni.getFilename());
                switch(fni.Action) {
                case Kernel32.FILE_ACTION_MODIFIED:
                    event = new FileEvent(file, FILE_MODIFIED); break;
                case Kernel32.FILE_ACTION_ADDED:
                    event = new FileEvent(file, FILE_CREATED); break;
                case Kernel32.FILE_ACTION_REMOVED:
                    event = new FileEvent(file, FILE_DELETED); break;
                case Kernel32.FILE_ACTION_RENAMED_OLD_NAME:
                    event = new FileEvent(file, FILE_NAME_CHANGED_OLD); break;
                case Kernel32.FILE_ACTION_RENAMED_NEW_NAME:
                    event = new FileEvent(file, FILE_NAME_CHANGED_NEW); break;
                default:
                    // TODO: other actions...
                    System.err.println("Unrecognized file action '" + fni.Action + "'");
                }
                if (event != null)
                    notify(event);
                fni = fni.next();
            } while (fni != null);
            // Trigger the next read
            if (!finfo.file.exists()) {
                unwatch(finfo.file);
                return;

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        private final Map fileMap = new HashMap();
        private final Map handleMap = new HashMap();
        
        private void handleChanges(FileInfo finfo) throws IOException {
            Kernel32 klib = Kernel32.INSTANCE;
            FILE_NOTIFY_INFORMATION fni = finfo.info;
            // Need an explicit read, since data was filled in asynchronously
            fni.read();
            do {
                FileEvent event = null;
                File file = new File(finfo.file, fni.getFilename());
                switch(fni.Action) {
                case Kernel32.FILE_ACTION_MODIFIED:
                    event = new FileEvent(file, FILE_MODIFIED); break;
                case Kernel32.FILE_ACTION_ADDED:
                    event = new FileEvent(file, FILE_CREATED); break;
                case Kernel32.FILE_ACTION_REMOVED:
                    event = new FileEvent(file, FILE_DELETED); break;
                case Kernel32.FILE_ACTION_RENAMED_OLD_NAME:
                    event = new FileEvent(file, FILE_NAME_CHANGED_OLD); break;
                case Kernel32.FILE_ACTION_RENAMED_NEW_NAME:
                    event = new FileEvent(file, FILE_NAME_CHANGED_NEW); break;
                default:
                    // TODO: other actions...
                    System.err.println("Unrecognized file action '" + fni.Action + "'");
                }
                if (event != null)
                    notify(event);
                fni = fni.next();
            } while (fni != null);
            // Trigger the next read
            if (!finfo.file.exists()) {
                unwatch(finfo.file);
                return;

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