19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* //device/libs/android_runtime/android_util_Log.cpp 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Copyright 2006, The Android Open Source Project 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 58451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes** Licensed under the Apache License, Version 2.0 (the "License"); 68451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes** you may not use this file except in compliance with the License. 78451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes** You may obtain a copy of the License at 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 98451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes** http://www.apache.org/licenses/LICENSE-2.0 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 118451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes** Unless required by applicable law or agreed to in writing, software 128451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes** distributed under the License is distributed on an "AS IS" BASIS, 138451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 148451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes** See the License for the specific language governing permissions and 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** limitations under the License. 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project*/ 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define LOG_NAMESPACE "log.tag." 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define LOG_TAG "Log_println" 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <assert.h> 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <cutils/properties.h> 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Log.h> 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/String8.h> 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "jni.h" 278451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes#include "JNIHelp.h" 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "utils/misc.h" 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "android_runtime/AndroidRuntime.h" 304b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown#include "android_util_Log.h" 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define MIN(a,b) ((a<b)?a:b) 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct levels_t { 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint verbose; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint debug; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint info; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint warn; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint error; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint assert; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic levels_t levels; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 468451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughesstatic int toLevel(const char* value) 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (value[0]) { 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'V': return levels.verbose; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'D': return levels.debug; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'I': return levels.info; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'W': return levels.warn; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'E': return levels.error; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'A': return levels.assert; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'S': return -1; // SUPPRESS 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return levels.info; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 604b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brownstatic jboolean isLoggable(const char* tag, jint level) { 614b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown String8 key; 624b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown key.append(LOG_NAMESPACE); 634b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown key.append(tag); 644b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char buf[PROPERTY_VALUE_MAX]; 664b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown if (property_get(key.string(), buf, "") <= 0) { 67d56feb91b4b1ac9cd0e9b37dfa20d137825fbbfdJeff Brown buf[0] = '\0'; 684b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown } 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 704b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown int logLevel = toLevel(buf); 714b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown return logLevel >= 0 && level >= logLevel; 724b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown} 734b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown 744b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brownstatic jboolean android_util_Log_isLoggable(JNIEnv* env, jobject clazz, jstring tag, jint level) 754b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown{ 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tag == NULL) { 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 798451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* chars = env->GetStringUTFChars(tag, NULL); 814b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown if (!chars) { 824b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown return false; 834b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown } 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 854b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown jboolean result = false; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((strlen(chars)+sizeof(LOG_NAMESPACE)) > PROPERTY_KEY_MAX) { 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char buf2[200]; 88f5df700e6ce056ebfa322314d970e52d6facc35aAshok Bhat snprintf(buf2, sizeof(buf2), "Log tag \"%s\" exceeds limit of %zu characters\n", 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project chars, PROPERTY_KEY_MAX - sizeof(LOG_NAMESPACE)); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 918451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes jniThrowException(env, "java/lang/IllegalArgumentException", buf2); 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 934b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown result = isLoggable(chars, level); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 958451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(tag, chars); 974b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown return result; 984b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown} 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1004b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brownbool android_util_Log_isVerboseLogEnabled(const char* tag) { 1014b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown return isLoggable(tag, levels.verbose); 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * In class android.util.Log: 10600bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato * public static native int println_native(int buffer, int priority, String tag, String msg) 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10800bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onoratostatic jint android_util_Log_println_native(JNIEnv* env, jobject clazz, 10900bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato jint bufID, jint priority, jstring tagObj, jstring msgObj) 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* tag = NULL; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* msg = NULL; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (msgObj == NULL) { 1158451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes jniThrowNullPointerException(env, "println needs a message"); 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11900bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato if (bufID < 0 || bufID >= LOG_ID_MAX) { 1208451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes jniThrowNullPointerException(env, "bad bufID"); 12100bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato return -1; 12200bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato } 12300bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tagObj != NULL) 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tag = env->GetStringUTFChars(tagObj, NULL); 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project msg = env->GetStringUTFChars(msgObj, NULL); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12800bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato int res = __android_log_buf_write(bufID, (android_LogPriority)priority, tag, msg); 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tag != NULL) 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(tagObj, tag); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(msgObj, msg); 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return res; 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * JNI registration. 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic JNINativeMethod gMethods[] = { 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* name, signature, funcPtr */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "isLoggable", "(Ljava/lang/String;I)Z", (void*) android_util_Log_isLoggable }, 14300bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato { "println_native", "(IILjava/lang/String;Ljava/lang/String;)I", (void*) android_util_Log_println_native }, 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_util_Log(JNIEnv* env) 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->FindClass("android/util/Log"); 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clazz == NULL) { 1513762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("Can't find android/util/Log"); 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1548451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.verbose = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "VERBOSE", "I")); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.debug = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "DEBUG", "I")); 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.info = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "INFO", "I")); 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.warn = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "WARN", "I")); 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.error = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "ERROR", "I")); 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.assert = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "ASSERT", "I")); 1618451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AndroidRuntime::registerNativeMethods(env, "android/util/Log", gMethods, NELEM(gMethods)); 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; // namespace android 166