| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.os; |
| |
| /** |
| * Retrieve overall information about the space on a filesystem. This is a |
| * Wrapper for Unix statfs(). |
| */ |
| public class StatFs { |
| /** |
| * Construct a new StatFs for looking at the stats of the |
| * filesystem at <var>path</var>. Upon construction, the stat of |
| * the file system will be performed, and the values retrieved available |
| * from the methods on this class. |
| * |
| * @param path A path in the desired file system to state. |
| */ |
| public StatFs(String path) { native_setup(path); } |
| |
| /** |
| * Perform a restat of the file system referenced by this object. This |
| * is the same as re-constructing the object with the same file system |
| * path, and the new stat values are available upon return. |
| */ |
| public void restat(String path) { native_restat(path); } |
| |
| @Override |
| protected void finalize() { native_finalize(); } |
| |
| /** |
| * The size, in bytes, of a block on the file system. This corresponds |
| * to the Unix statfs.f_bsize field. |
| */ |
| public native int getBlockSize(); |
| |
| /** |
| * The total number of blocks on the file system. This corresponds |
| * to the Unix statfs.f_blocks field. |
| */ |
| public native int getBlockCount(); |
| |
| /** |
| * The total number of blocks that are free on the file system, including |
| * reserved blocks (that are not available to normal applications). This |
| * corresponds to the Unix statfs.f_bfree field. Most applications will |
| * want to use {@link #getAvailableBlocks()} instead. |
| */ |
| public native int getFreeBlocks(); |
| |
| /** |
| * The number of blocks that are free on the file system and available to |
| * applications. This corresponds to the Unix statfs.f_bavail field. |
| */ |
| public native int getAvailableBlocks(); |
| |
| private int mNativeContext; |
| private native void native_restat(String path); |
| private native void native_setup(String path); |
| private native void native_finalize(); |
| } |