android_util_Log.cpp revision 8451b25a4422656bbd6657a5855e69c0f4d53c74
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" 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define MIN(a,b) ((a<b)?a:b) 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct levels_t { 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint verbose; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint debug; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint info; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint warn; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint error; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint assert; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic levels_t levels; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 458451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughesstatic int toLevel(const char* value) 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (value[0]) { 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'V': return levels.verbose; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'D': return levels.debug; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'I': return levels.info; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'W': return levels.warn; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'E': return levels.error; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'A': return levels.assert; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case 'S': return -1; // SUPPRESS 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return levels.info; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jboolean android_util_Log_isLoggable(JNIEnv* env, jobject clazz, jstring tag, jint level) 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#ifndef HAVE_ANDROID_OS 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#else /* HAVE_ANDROID_OS */ 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int len; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char key[PROPERTY_KEY_MAX]; 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char buf[PROPERTY_VALUE_MAX]; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tag == NULL) { 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 718451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jboolean result = false; 738451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* chars = env->GetStringUTFChars(tag, NULL); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((strlen(chars)+sizeof(LOG_NAMESPACE)) > PROPERTY_KEY_MAX) { 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char buf2[200]; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project snprintf(buf2, sizeof(buf2), "Log tag \"%s\" exceeds limit of %d characters\n", 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project chars, PROPERTY_KEY_MAX - sizeof(LOG_NAMESPACE)); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // release the chars! 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(tag, chars); 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 848451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes jniThrowException(env, "java/lang/IllegalArgumentException", buf2); 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project strncpy(key, LOG_NAMESPACE, sizeof(LOG_NAMESPACE)-1); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project strcpy(key + sizeof(LOG_NAMESPACE) - 1, chars); 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 908451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(tag, chars); 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project len = property_get(key, buf, ""); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int logLevel = toLevel(buf); 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (logLevel >= 0 && level >= logLevel) ? true : false; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#endif /* HAVE_ANDROID_OS */ 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * In class android.util.Log: 10100bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato * public static native int println_native(int buffer, int priority, String tag, String msg) 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10300bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onoratostatic jint android_util_Log_println_native(JNIEnv* env, jobject clazz, 10400bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato jint bufID, jint priority, jstring tagObj, jstring msgObj) 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* tag = NULL; 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* msg = NULL; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (msgObj == NULL) { 1108451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes jniThrowNullPointerException(env, "println needs a message"); 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11400bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato if (bufID < 0 || bufID >= LOG_ID_MAX) { 1158451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes jniThrowNullPointerException(env, "bad bufID"); 11600bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato return -1; 11700bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato } 11800bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tagObj != NULL) 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tag = env->GetStringUTFChars(tagObj, NULL); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project msg = env->GetStringUTFChars(msgObj, NULL); 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12300bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato int res = __android_log_buf_write(bufID, (android_LogPriority)priority, tag, msg); 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tag != NULL) 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(tagObj, tag); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(msgObj, msg); 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return res; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * JNI registration. 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic JNINativeMethod gMethods[] = { 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* name, signature, funcPtr */ 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "isLoggable", "(Ljava/lang/String;I)Z", (void*) android_util_Log_isLoggable }, 13800bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato { "println_native", "(IILjava/lang/String;Ljava/lang/String;)I", (void*) android_util_Log_println_native }, 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_util_Log(JNIEnv* env) 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jclass clazz = env->FindClass("android/util/Log"); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clazz == NULL) { 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LOGE("Can't find android/util/Log"); 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1498451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.verbose = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "VERBOSE", "I")); 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.debug = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "DEBUG", "I")); 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.info = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "INFO", "I")); 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.warn = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "WARN", "I")); 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.error = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "ERROR", "I")); 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project levels.assert = env->GetStaticIntField(clazz, env->GetStaticFieldID(clazz, "ASSERT", "I")); 1568451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AndroidRuntime::registerNativeMethods(env, "android/util/Log", gMethods, NELEM(gMethods)); 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; // namespace android 161