The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.ddm; |
| 18 | |
| 19 | import org.apache.harmony.dalvik.ddmc.Chunk; |
| 20 | import org.apache.harmony.dalvik.ddmc.ChunkHandler; |
| 21 | import org.apache.harmony.dalvik.ddmc.DdmServer; |
| 22 | import org.apache.harmony.dalvik.ddmc.DdmVmInternal; |
The Android Open Source Project | 7b0b1ed | 2009-03-18 22:20:26 -0700 | [diff] [blame] | 23 | import android.os.Debug; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 24 | import android.util.Config; |
| 25 | import android.util.Log; |
The Android Open Source Project | 7b0b1ed | 2009-03-18 22:20:26 -0700 | [diff] [blame] | 26 | import java.io.IOException; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 27 | import java.nio.ByteBuffer; |
| 28 | |
| 29 | /** |
The Android Open Source Project | 7b0b1ed | 2009-03-18 22:20:26 -0700 | [diff] [blame] | 30 | * Handle native and virtual heap requests. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 31 | */ |
| 32 | public class DdmHandleHeap extends ChunkHandler { |
| 33 | |
| 34 | public static final int CHUNK_HPIF = type("HPIF"); |
| 35 | public static final int CHUNK_HPSG = type("HPSG"); |
The Android Open Source Project | 7b0b1ed | 2009-03-18 22:20:26 -0700 | [diff] [blame] | 36 | public static final int CHUNK_HPDU = type("HPDU"); |
Andy McFadden | 07a9661 | 2010-01-28 16:54:37 -0800 | [diff] [blame] | 37 | public static final int CHUNK_HPDS = type("HPDS"); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 38 | public static final int CHUNK_NHSG = type("NHSG"); |
| 39 | public static final int CHUNK_HPGC = type("HPGC"); |
| 40 | public static final int CHUNK_REAE = type("REAE"); |
| 41 | public static final int CHUNK_REAQ = type("REAQ"); |
| 42 | public static final int CHUNK_REAL = type("REAL"); |
| 43 | |
| 44 | private static DdmHandleHeap mInstance = new DdmHandleHeap(); |
| 45 | |
| 46 | |
| 47 | /* singleton, do not instantiate */ |
| 48 | private DdmHandleHeap() {} |
| 49 | |
| 50 | /** |
| 51 | * Register for the messages we're interested in. |
| 52 | */ |
| 53 | public static void register() { |
| 54 | DdmServer.registerHandler(CHUNK_HPIF, mInstance); |
| 55 | DdmServer.registerHandler(CHUNK_HPSG, mInstance); |
The Android Open Source Project | 7b0b1ed | 2009-03-18 22:20:26 -0700 | [diff] [blame] | 56 | DdmServer.registerHandler(CHUNK_HPDU, mInstance); |
Andy McFadden | 07a9661 | 2010-01-28 16:54:37 -0800 | [diff] [blame] | 57 | DdmServer.registerHandler(CHUNK_HPDS, mInstance); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 58 | DdmServer.registerHandler(CHUNK_NHSG, mInstance); |
| 59 | DdmServer.registerHandler(CHUNK_HPGC, mInstance); |
| 60 | DdmServer.registerHandler(CHUNK_REAE, mInstance); |
| 61 | DdmServer.registerHandler(CHUNK_REAQ, mInstance); |
| 62 | DdmServer.registerHandler(CHUNK_REAL, mInstance); |
| 63 | } |
| 64 | |
| 65 | /** |
| 66 | * Called when the DDM server connects. The handler is allowed to |
| 67 | * send messages to the server. |
| 68 | */ |
| 69 | public void connected() {} |
| 70 | |
| 71 | /** |
| 72 | * Called when the DDM server disconnects. Can be used to disable |
| 73 | * periodic transmissions or clean up saved state. |
| 74 | */ |
| 75 | public void disconnected() {} |
| 76 | |
| 77 | /** |
| 78 | * Handle a chunk of data. |
| 79 | */ |
| 80 | public Chunk handleChunk(Chunk request) { |
| 81 | if (Config.LOGV) |
| 82 | Log.v("ddm-heap", "Handling " + name(request.type) + " chunk"); |
| 83 | int type = request.type; |
| 84 | |
| 85 | if (type == CHUNK_HPIF) { |
| 86 | return handleHPIF(request); |
| 87 | } else if (type == CHUNK_HPSG) { |
| 88 | return handleHPSGNHSG(request, false); |
The Android Open Source Project | 7b0b1ed | 2009-03-18 22:20:26 -0700 | [diff] [blame] | 89 | } else if (type == CHUNK_HPDU) { |
| 90 | return handleHPDU(request); |
Andy McFadden | 07a9661 | 2010-01-28 16:54:37 -0800 | [diff] [blame] | 91 | } else if (type == CHUNK_HPDS) { |
| 92 | return handleHPDS(request); |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 93 | } else if (type == CHUNK_NHSG) { |
| 94 | return handleHPSGNHSG(request, true); |
| 95 | } else if (type == CHUNK_HPGC) { |
| 96 | return handleHPGC(request); |
| 97 | } else if (type == CHUNK_REAE) { |
| 98 | return handleREAE(request); |
| 99 | } else if (type == CHUNK_REAQ) { |
| 100 | return handleREAQ(request); |
| 101 | } else if (type == CHUNK_REAL) { |
| 102 | return handleREAL(request); |
| 103 | } else { |
| 104 | throw new RuntimeException("Unknown packet " |
| 105 | + ChunkHandler.name(type)); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | /* |
The Android Open Source Project | 7b0b1ed | 2009-03-18 22:20:26 -0700 | [diff] [blame] | 110 | * Handle a "HeaP InFo" request. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 111 | */ |
| 112 | private Chunk handleHPIF(Chunk request) { |
| 113 | ByteBuffer in = wrapChunk(request); |
| 114 | |
| 115 | int when = in.get(); |
| 116 | if (Config.LOGV) |
| 117 | Log.v("ddm-heap", "Heap segment enable: when=" + when); |
| 118 | |
| 119 | boolean ok = DdmVmInternal.heapInfoNotify(when); |
| 120 | if (!ok) { |
| 121 | return createFailChunk(1, "Unsupported HPIF what"); |
| 122 | } else { |
| 123 | return null; // empty response |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | /* |
| 128 | * Handle a "HeaP SeGment" or "Native Heap SeGment" request. |
| 129 | */ |
| 130 | private Chunk handleHPSGNHSG(Chunk request, boolean isNative) { |
| 131 | ByteBuffer in = wrapChunk(request); |
| 132 | |
| 133 | int when = in.get(); |
| 134 | int what = in.get(); |
| 135 | if (Config.LOGV) |
| 136 | Log.v("ddm-heap", "Heap segment enable: when=" + when |
| 137 | + ", what=" + what + ", isNative=" + isNative); |
| 138 | |
| 139 | boolean ok = DdmVmInternal.heapSegmentNotify(when, what, isNative); |
| 140 | if (!ok) { |
| 141 | return createFailChunk(1, "Unsupported HPSG what/when"); |
| 142 | } else { |
| 143 | // TODO: if "when" is non-zero and we want to see a dump |
| 144 | // right away, initiate a GC. |
| 145 | return null; // empty response |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | /* |
The Android Open Source Project | 7b0b1ed | 2009-03-18 22:20:26 -0700 | [diff] [blame] | 150 | * Handle a "HeaP DUmp" request. |
| 151 | * |
| 152 | * This currently just returns a result code. We could pull up |
| 153 | * the entire contents of the file and return them, but hprof dump |
| 154 | * files can be a few megabytes. |
| 155 | */ |
| 156 | private Chunk handleHPDU(Chunk request) { |
| 157 | ByteBuffer in = wrapChunk(request); |
| 158 | byte result; |
| 159 | |
| 160 | /* get the filename for the output file */ |
| 161 | int len = in.getInt(); |
| 162 | String fileName = getString(in, len); |
| 163 | if (Config.LOGD) |
| 164 | Log.d("ddm-heap", "Heap dump: file='" + fileName + "'"); |
| 165 | |
| 166 | try { |
| 167 | Debug.dumpHprofData(fileName); |
| 168 | result = 0; |
| 169 | } catch (UnsupportedOperationException uoe) { |
| 170 | Log.w("ddm-heap", "hprof dumps not supported in this VM"); |
| 171 | result = -1; |
| 172 | } catch (IOException ioe) { |
| 173 | result = -1; |
Andy McFadden | 07a9661 | 2010-01-28 16:54:37 -0800 | [diff] [blame] | 174 | } catch (RuntimeException re) { |
The Android Open Source Project | 7b0b1ed | 2009-03-18 22:20:26 -0700 | [diff] [blame] | 175 | result = -1; |
| 176 | } |
| 177 | |
| 178 | /* create a non-empty reply so the handler fires on completion */ |
| 179 | byte[] reply = { result }; |
| 180 | return new Chunk(CHUNK_HPDU, reply, 0, reply.length); |
| 181 | } |
| 182 | |
| 183 | /* |
Andy McFadden | 07a9661 | 2010-01-28 16:54:37 -0800 | [diff] [blame] | 184 | * Handle a "HeaP Dump Streaming" request. |
| 185 | * |
| 186 | * This tells the VM to create a heap dump and send it directly to |
| 187 | * DDMS. The dumps are large enough that we don't want to copy the |
| 188 | * data into a byte[] and send it from here. |
| 189 | */ |
| 190 | private Chunk handleHPDS(Chunk request) { |
| 191 | ByteBuffer in = wrapChunk(request); |
| 192 | byte result; |
| 193 | |
| 194 | /* get the filename for the output file */ |
| 195 | if (Config.LOGD) |
| 196 | Log.d("ddm-heap", "Heap dump: [DDMS]"); |
| 197 | |
| 198 | String failMsg = null; |
| 199 | try { |
| 200 | Debug.dumpHprofDataDdms(); |
| 201 | } catch (UnsupportedOperationException uoe) { |
| 202 | failMsg = "hprof dumps not supported in this VM"; |
| 203 | } catch (RuntimeException re) { |
| 204 | failMsg = "Exception: " + re.getMessage(); |
| 205 | } |
| 206 | |
| 207 | if (failMsg != null) { |
| 208 | Log.w("ddm-heap", failMsg); |
| 209 | return createFailChunk(1, failMsg); |
| 210 | } else { |
| 211 | return null; |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | /* |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 216 | * Handle a "HeaP Garbage Collection" request. |
| 217 | */ |
| 218 | private Chunk handleHPGC(Chunk request) { |
| 219 | //ByteBuffer in = wrapChunk(request); |
| 220 | |
| 221 | if (Config.LOGD) |
| 222 | Log.d("ddm-heap", "Heap GC request"); |
| 223 | System.gc(); |
| 224 | |
| 225 | return null; // empty response |
| 226 | } |
| 227 | |
| 228 | /* |
| 229 | * Handle a "REcent Allocation Enable" request. |
| 230 | */ |
| 231 | private Chunk handleREAE(Chunk request) { |
| 232 | ByteBuffer in = wrapChunk(request); |
| 233 | boolean enable; |
| 234 | |
| 235 | enable = (in.get() != 0); |
| 236 | |
| 237 | if (Config.LOGD) |
| 238 | Log.d("ddm-heap", "Recent allocation enable request: " + enable); |
| 239 | |
| 240 | DdmVmInternal.enableRecentAllocations(enable); |
| 241 | |
| 242 | return null; // empty response |
| 243 | } |
| 244 | |
| 245 | /* |
| 246 | * Handle a "REcent Allocation Query" request. |
| 247 | */ |
| 248 | private Chunk handleREAQ(Chunk request) { |
| 249 | //ByteBuffer in = wrapChunk(request); |
| 250 | |
| 251 | byte[] reply = new byte[1]; |
| 252 | reply[0] = DdmVmInternal.getRecentAllocationStatus() ? (byte)1 :(byte)0; |
| 253 | return new Chunk(CHUNK_REAQ, reply, 0, reply.length); |
| 254 | } |
| 255 | |
| 256 | /* |
| 257 | * Handle a "REcent ALlocations" request. |
| 258 | */ |
| 259 | private Chunk handleREAL(Chunk request) { |
| 260 | //ByteBuffer in = wrapChunk(request); |
| 261 | |
| 262 | if (Config.LOGD) |
| 263 | Log.d("ddm-heap", "Recent allocations request"); |
| 264 | |
| 265 | /* generate the reply in a ready-to-go format */ |
| 266 | byte[] reply = DdmVmInternal.getRecentAllocations(); |
| 267 | return new Chunk(CHUNK_REAL, reply, 0, reply.length); |
| 268 | } |
| 269 | } |
| 270 | |