X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/45c3f1cfee86fb48c96d53f8267f99b6db6e3d7a..84402e8e2ee2a2d0bef25fdceb0a263ed8b471f6:/src/bindings/java/org/simgrid/msg/File.java diff --git a/src/bindings/java/org/simgrid/msg/File.java b/src/bindings/java/org/simgrid/msg/File.java index db3ff43ac6..5263adb355 100644 --- a/src/bindings/java/org/simgrid/msg/File.java +++ b/src/bindings/java/org/simgrid/msg/File.java @@ -1,4 +1,4 @@ -/* Copyright (c) 2012-2014. The SimGrid Team. +/* Copyright (c) 2012-2020. The SimGrid Team. * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it @@ -7,54 +7,59 @@ package org.simgrid.msg; public class File { - protected String storage; + public static final int SEEK_SET = 0; + public static final int SEEK_CUR = 1; + public static final int SEEK_END = 2; /** * Represents the bind between the java comm and the - * native C comm. You must never access it, since it is + * native C comm. You must never access it, since it is * automatically set. */ private long bind = 0; /** * Constructor, opens the file. - * @param storage is the name where you can find the file descriptor - * @param path is the file location on the storage + * @param path is the file location on the storage */ - public File(String storage, String path) { - this.storage = storage; - open(storage, path); + public File(String path) { + open(path); } - protected void finalize() { - } /** - * Opens the file whose name is the string pointed to by path. - * @param storage is the name where you can find the file descriptor + * Opens the file whose name is the string pointed to by path. * @param path is the file location on the storage */ - protected native void open(String storage, String path); + protected native void open(String path); /** - * Read elements of a file. + * Read elements of a file. * @param size of each element - * @param nMemb is the number of elements of data to write + * @param nMemb is the number of elements of data to write + * @return the actually read size */ public native long read(long size, long nMemb); + /** - * Write elements into a file. - * @param size of each element - * @param nMemb is the number of elements of data to write + * Write elements into a file. + * @param size of each element + * @param nMemb is the number of elements of data to write + * @return the actually written size */ public native long write(long size, long nMemb); /** - * Close the file. - */ + * Write elements into a file. + * @param offset : number of bytes to offset from origin + * @param origin : Position used as reference for the offset. It is specified by one of the following constants + * defined in <stdio.h> exclusively to be used as arguments for this function (SEEK_SET = + * beginning of file, SEEK_CUR = current position of the file pointer, SEEK_END = end of file) + */ + public native void seek(long offset, long origin); + + /** Close the file. */ public native void close(); - - /** - * Class initializer, to initialize various JNI stuff - */ + + /** Class initializer, to initialize various JNI stuff */ public static native void nativeInit(); static { - Msg.nativeInit(); + org.simgrid.NativeLib.nativeInit(); nativeInit(); } } \ No newline at end of file