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 | #include "JNIHelp.h" |
| 18 | #include "jni.h" |
| 19 | #include "utils/misc.h" |
| 20 | |
| 21 | #include <stdio.h> |
| 22 | #include <stdlib.h> |
| 23 | #include <string.h> |
| 24 | #include <unistd.h> |
| 25 | #include <time.h> |
| 26 | #include <sys/time.h> |
| 27 | |
| 28 | #ifdef HAVE_MALLOC_H |
| 29 | #include <malloc.h> |
| 30 | #endif |
| 31 | |
| 32 | namespace android |
| 33 | { |
| 34 | |
| 35 | static jfieldID dalvikPss_field; |
| 36 | static jfieldID dalvikPrivateDirty_field; |
| 37 | static jfieldID dalvikSharedDirty_field; |
| 38 | static jfieldID nativePss_field; |
| 39 | static jfieldID nativePrivateDirty_field; |
| 40 | static jfieldID nativeSharedDirty_field; |
| 41 | static jfieldID otherPss_field; |
| 42 | static jfieldID otherPrivateDirty_field; |
| 43 | static jfieldID otherSharedDirty_field; |
| 44 | |
| 45 | struct stats_t { |
| 46 | int dalvikPss; |
| 47 | int dalvikPrivateDirty; |
| 48 | int dalvikSharedDirty; |
| 49 | |
| 50 | int nativePss; |
| 51 | int nativePrivateDirty; |
| 52 | int nativeSharedDirty; |
| 53 | |
| 54 | int otherPss; |
| 55 | int otherPrivateDirty; |
| 56 | int otherSharedDirty; |
| 57 | }; |
| 58 | |
| 59 | #define BINDER_STATS "/proc/binder/stats" |
| 60 | |
| 61 | static jlong android_os_Debug_getNativeHeapSize(JNIEnv *env, jobject clazz) |
| 62 | { |
| 63 | #ifdef HAVE_MALLOC_H |
| 64 | struct mallinfo info = mallinfo(); |
| 65 | return (jlong) info.usmblks; |
| 66 | #else |
| 67 | return -1; |
| 68 | #endif |
| 69 | } |
| 70 | |
| 71 | static jlong android_os_Debug_getNativeHeapAllocatedSize(JNIEnv *env, jobject clazz) |
| 72 | { |
| 73 | #ifdef HAVE_MALLOC_H |
| 74 | struct mallinfo info = mallinfo(); |
| 75 | return (jlong) info.uordblks; |
| 76 | #else |
| 77 | return -1; |
| 78 | #endif |
| 79 | } |
| 80 | |
| 81 | static jlong android_os_Debug_getNativeHeapFreeSize(JNIEnv *env, jobject clazz) |
| 82 | { |
| 83 | #ifdef HAVE_MALLOC_H |
| 84 | struct mallinfo info = mallinfo(); |
| 85 | return (jlong) info.fordblks; |
| 86 | #else |
| 87 | return -1; |
| 88 | #endif |
| 89 | } |
| 90 | |
| 91 | static void read_mapinfo(FILE *fp, stats_t* stats) |
| 92 | { |
| 93 | char line[1024]; |
| 94 | int len; |
| 95 | bool skip, done = false; |
| 96 | |
| 97 | unsigned start = 0, size = 0, resident = 0, pss = 0; |
| 98 | unsigned shared_clean = 0, shared_dirty = 0; |
| 99 | unsigned private_clean = 0, private_dirty = 0; |
| 100 | unsigned referenced = 0; |
| 101 | unsigned temp; |
| 102 | |
| 103 | int isNativeHeap; |
| 104 | int isDalvikHeap; |
| 105 | int isSqliteHeap; |
| 106 | |
| 107 | if(fgets(line, 1024, fp) == 0) return; |
| 108 | |
| 109 | while (!done) { |
| 110 | isNativeHeap = 0; |
| 111 | isDalvikHeap = 0; |
| 112 | isSqliteHeap = 0; |
| 113 | skip = false; |
| 114 | |
| 115 | len = strlen(line); |
| 116 | if (len < 1) return; |
| 117 | line[--len] = 0; |
| 118 | |
| 119 | /* ignore guard pages */ |
| 120 | if (len > 18 && line[17] == '-') skip = true; |
| 121 | |
| 122 | start = strtoul(line, 0, 16); |
| 123 | |
| 124 | if (strstr(line, "[heap]")) { |
| 125 | isNativeHeap = 1; |
| 126 | } else if (strstr(line, "/dalvik-LinearAlloc")) { |
| 127 | isDalvikHeap = 1; |
| 128 | } else if (strstr(line, "/mspace/dalvik-heap")) { |
| 129 | isDalvikHeap = 1; |
| 130 | } else if (strstr(line, "/dalvik-heap-bitmap/")) { |
| 131 | isDalvikHeap = 1; |
Grace Kloba | bd51116 | 2009-07-08 23:32:25 -0700 | [diff] [blame^] | 132 | } else if (strstr(line, "/data/dalvik-cache/")) { |
| 133 | isDalvikHeap = 1; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 134 | } else if (strstr(line, "/tmp/sqlite-heap")) { |
| 135 | isSqliteHeap = 1; |
| 136 | } |
| 137 | |
| 138 | //LOGI("native=%d dalvik=%d sqlite=%d: %s\n", isNativeHeap, isDalvikHeap, |
| 139 | // isSqliteHeap, line); |
| 140 | |
| 141 | while (true) { |
| 142 | if (fgets(line, 1024, fp) == 0) { |
| 143 | done = true; |
| 144 | break; |
| 145 | } |
| 146 | |
| 147 | if (sscanf(line, "Size: %d kB", &temp) == 1) { |
| 148 | size = temp; |
| 149 | } else if (sscanf(line, "Rss: %d kB", &temp) == 1) { |
| 150 | resident = temp; |
| 151 | } else if (sscanf(line, "Pss: %d kB", &temp) == 1) { |
| 152 | pss = temp; |
| 153 | } else if (sscanf(line, "Shared_Clean: %d kB", &temp) == 1) { |
| 154 | shared_clean = temp; |
| 155 | } else if (sscanf(line, "Shared_Dirty: %d kB", &temp) == 1) { |
| 156 | shared_dirty = temp; |
| 157 | } else if (sscanf(line, "Private_Clean: %d kB", &temp) == 1) { |
| 158 | private_clean = temp; |
| 159 | } else if (sscanf(line, "Private_Dirty: %d kB", &temp) == 1) { |
| 160 | private_dirty = temp; |
| 161 | } else if (sscanf(line, "Referenced: %d kB", &temp) == 1) { |
| 162 | referenced = temp; |
Grace Kloba | bd51116 | 2009-07-08 23:32:25 -0700 | [diff] [blame^] | 163 | } else if (strlen(line) > 30 && line[8] == '-' && line[17] == ' ') { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 164 | // looks like a new mapping |
Grace Kloba | bd51116 | 2009-07-08 23:32:25 -0700 | [diff] [blame^] | 165 | // example: "10000000-10001000 ---p 10000000 00:00 0" |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 166 | break; |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | if (!skip) { |
| 171 | if (isNativeHeap) { |
| 172 | stats->nativePss += pss; |
| 173 | stats->nativePrivateDirty += private_dirty; |
| 174 | stats->nativeSharedDirty += shared_dirty; |
| 175 | } else if (isDalvikHeap) { |
| 176 | stats->dalvikPss += pss; |
| 177 | stats->dalvikPrivateDirty += private_dirty; |
| 178 | stats->dalvikSharedDirty += shared_dirty; |
| 179 | } else if ( isSqliteHeap) { |
| 180 | // ignore |
| 181 | } else { |
| 182 | stats->otherPss += pss; |
Grace Kloba | bd51116 | 2009-07-08 23:32:25 -0700 | [diff] [blame^] | 183 | stats->otherPrivateDirty += private_dirty; |
| 184 | stats->otherSharedDirty += shared_dirty; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 185 | } |
| 186 | } |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | static void load_maps(int pid, stats_t* stats) |
| 191 | { |
| 192 | char tmp[128]; |
| 193 | FILE *fp; |
| 194 | |
| 195 | sprintf(tmp, "/proc/%d/smaps", pid); |
| 196 | fp = fopen(tmp, "r"); |
| 197 | if (fp == 0) return; |
| 198 | |
| 199 | read_mapinfo(fp, stats); |
| 200 | fclose(fp); |
| 201 | } |
| 202 | |
| 203 | static void android_os_Debug_getDirtyPages(JNIEnv *env, jobject clazz, jobject object) |
| 204 | { |
| 205 | stats_t stats; |
| 206 | memset(&stats, 0, sizeof(stats_t)); |
| 207 | |
| 208 | load_maps(getpid(), &stats); |
| 209 | |
| 210 | env->SetIntField(object, dalvikPss_field, stats.dalvikPss); |
| 211 | env->SetIntField(object, dalvikPrivateDirty_field, stats.dalvikPrivateDirty); |
| 212 | env->SetIntField(object, dalvikSharedDirty_field, stats.dalvikSharedDirty); |
| 213 | |
| 214 | env->SetIntField(object, nativePss_field, stats.nativePss); |
| 215 | env->SetIntField(object, nativePrivateDirty_field, stats.nativePrivateDirty); |
| 216 | env->SetIntField(object, nativeSharedDirty_field, stats.nativeSharedDirty); |
| 217 | |
| 218 | env->SetIntField(object, otherPss_field, stats.otherPss); |
| 219 | env->SetIntField(object, otherPrivateDirty_field, stats.otherPrivateDirty); |
| 220 | env->SetIntField(object, otherSharedDirty_field, stats.otherSharedDirty); |
| 221 | } |
| 222 | |
| 223 | static jint read_binder_stat(const char* stat) |
| 224 | { |
| 225 | FILE* fp = fopen(BINDER_STATS, "r"); |
| 226 | if (fp == NULL) { |
| 227 | return -1; |
| 228 | } |
| 229 | |
| 230 | char line[1024]; |
| 231 | |
| 232 | char compare[128]; |
| 233 | int len = snprintf(compare, 128, "proc %d", getpid()); |
| 234 | |
| 235 | // loop until we have the block that represents this process |
| 236 | do { |
| 237 | if (fgets(line, 1024, fp) == 0) { |
| 238 | return -1; |
| 239 | } |
| 240 | } while (strncmp(compare, line, len)); |
| 241 | |
| 242 | // now that we have this process, read until we find the stat that we are looking for |
| 243 | len = snprintf(compare, 128, " %s: ", stat); |
| 244 | |
| 245 | do { |
| 246 | if (fgets(line, 1024, fp) == 0) { |
| 247 | return -1; |
| 248 | } |
| 249 | } while (strncmp(compare, line, len)); |
| 250 | |
| 251 | // we have the line, now increment the line ptr to the value |
| 252 | char* ptr = line + len; |
| 253 | return atoi(ptr); |
| 254 | } |
| 255 | |
| 256 | static jint android_os_Debug_getBinderSentTransactions(JNIEnv *env, jobject clazz) |
| 257 | { |
| 258 | return read_binder_stat("bcTRANSACTION"); |
| 259 | } |
| 260 | |
| 261 | static jint android_os_getBinderReceivedTransactions(JNIEnv *env, jobject clazz) |
| 262 | { |
| 263 | return read_binder_stat("brTRANSACTION"); |
| 264 | } |
| 265 | |
| 266 | // these are implemented in android_util_Binder.cpp |
| 267 | jint android_os_Debug_getLocalObjectCount(JNIEnv* env, jobject clazz); |
| 268 | jint android_os_Debug_getProxyObjectCount(JNIEnv* env, jobject clazz); |
| 269 | jint android_os_Debug_getDeathObjectCount(JNIEnv* env, jobject clazz); |
| 270 | |
| 271 | /* |
| 272 | * JNI registration. |
| 273 | */ |
| 274 | |
| 275 | static JNINativeMethod gMethods[] = { |
| 276 | { "getNativeHeapSize", "()J", |
| 277 | (void*) android_os_Debug_getNativeHeapSize }, |
| 278 | { "getNativeHeapAllocatedSize", "()J", |
| 279 | (void*) android_os_Debug_getNativeHeapAllocatedSize }, |
| 280 | { "getNativeHeapFreeSize", "()J", |
| 281 | (void*) android_os_Debug_getNativeHeapFreeSize }, |
| 282 | { "getMemoryInfo", "(Landroid/os/Debug$MemoryInfo;)V", |
| 283 | (void*) android_os_Debug_getDirtyPages }, |
| 284 | { "getBinderSentTransactions", "()I", |
| 285 | (void*) android_os_Debug_getBinderSentTransactions }, |
| 286 | { "getBinderReceivedTransactions", "()I", |
| 287 | (void*) android_os_getBinderReceivedTransactions }, |
| 288 | { "getBinderLocalObjectCount", "()I", |
| 289 | (void*)android_os_Debug_getLocalObjectCount }, |
| 290 | { "getBinderProxyObjectCount", "()I", |
| 291 | (void*)android_os_Debug_getProxyObjectCount }, |
| 292 | { "getBinderDeathObjectCount", "()I", |
| 293 | (void*)android_os_Debug_getDeathObjectCount }, |
| 294 | }; |
| 295 | |
| 296 | int register_android_os_Debug(JNIEnv *env) |
| 297 | { |
| 298 | jclass clazz = env->FindClass("android/os/Debug$MemoryInfo"); |
| 299 | |
| 300 | dalvikPss_field = env->GetFieldID(clazz, "dalvikPss", "I"); |
| 301 | dalvikPrivateDirty_field = env->GetFieldID(clazz, "dalvikPrivateDirty", "I"); |
| 302 | dalvikSharedDirty_field = env->GetFieldID(clazz, "dalvikSharedDirty", "I"); |
| 303 | |
| 304 | nativePss_field = env->GetFieldID(clazz, "nativePss", "I"); |
| 305 | nativePrivateDirty_field = env->GetFieldID(clazz, "nativePrivateDirty", "I"); |
| 306 | nativeSharedDirty_field = env->GetFieldID(clazz, "nativeSharedDirty", "I"); |
| 307 | |
| 308 | otherPss_field = env->GetFieldID(clazz, "otherPss", "I"); |
| 309 | otherPrivateDirty_field = env->GetFieldID(clazz, "otherPrivateDirty", "I"); |
| 310 | otherSharedDirty_field = env->GetFieldID(clazz, "otherSharedDirty", "I"); |
| 311 | |
| 312 | return jniRegisterNativeMethods(env, "android/os/Debug", gMethods, NELEM(gMethods)); |
| 313 | } |
| 314 | |
| 315 | }; |