| /* |
| * Copyright (C) 2015 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 com.android.server.am; |
| |
| import android.content.ContentProvider; |
| import android.content.ContentValues; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.os.Environment; |
| import android.os.ParcelFileDescriptor; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| |
| public class DumpHeapProvider extends ContentProvider { |
| static final Object sLock = new Object(); |
| static File sHeapDumpJavaFile; |
| |
| static public File getJavaFile() { |
| synchronized (sLock) { |
| return sHeapDumpJavaFile; |
| } |
| } |
| |
| @Override |
| public boolean onCreate() { |
| synchronized (sLock) { |
| File dataDir = Environment.getDataDirectory(); |
| File systemDir = new File(dataDir, "system"); |
| File heapdumpDir = new File(systemDir, "heapdump"); |
| heapdumpDir.mkdir(); |
| sHeapDumpJavaFile = new File(heapdumpDir, "javaheap.bin"); |
| } |
| return true; |
| } |
| |
| @Override |
| public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) { |
| return null; |
| } |
| |
| @Override |
| public String getType(Uri uri) { |
| return "application/octet-stream"; |
| } |
| |
| @Override |
| public Uri insert(Uri uri, ContentValues values) { |
| return null; |
| } |
| |
| @Override |
| public int delete(Uri uri, String selection, String[] selectionArgs) { |
| return 0; |
| } |
| |
| @Override |
| public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { |
| return 0; |
| } |
| |
| @Override |
| public ParcelFileDescriptor openFile(Uri uri, String mode) throws FileNotFoundException { |
| synchronized (sLock) { |
| String path = uri.getEncodedPath(); |
| final String tag = Uri.decode(path); |
| if (tag.equals("/java")) { |
| return ParcelFileDescriptor.open(sHeapDumpJavaFile, |
| ParcelFileDescriptor.MODE_READ_ONLY); |
| } else { |
| throw new FileNotFoundException("Invalid path for " + uri); |
| } |
| } |
| } |
| } |