android_util_Log.cpp revision 76f6a86de25e1bf74717e047e55fd44b089673f3
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" 29ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe#include "core_jni_helpers.h" 304b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown#include "android_util_Log.h" 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct levels_t { 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint verbose; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint debug; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint info; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint warn; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint error; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint assert; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic levels_t levels; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 444b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brownstatic jboolean isLoggable(const char* tag, jint level) { 458685a4569d2bdcb1a7361e3d75f832cf3ba9d4b6Mark Salyzyn return __android_log_is_loggable(level, tag, ANDROID_LOG_INFO); 464b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown} 474b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown 484b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brownstatic jboolean android_util_Log_isLoggable(JNIEnv* env, jobject clazz, jstring tag, jint level) 494b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown{ 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tag == NULL) { 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 538451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* chars = env->GetStringUTFChars(tag, NULL); 554b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown if (!chars) { 564b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown return false; 574b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown } 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 594b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown jboolean result = false; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((strlen(chars)+sizeof(LOG_NAMESPACE)) > PROPERTY_KEY_MAX) { 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char buf2[200]; 62f5df700e6ce056ebfa322314d970e52d6facc35aAshok Bhat snprintf(buf2, sizeof(buf2), "Log tag \"%s\" exceeds limit of %zu characters\n", 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project chars, PROPERTY_KEY_MAX - sizeof(LOG_NAMESPACE)); 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 658451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes jniThrowException(env, "java/lang/IllegalArgumentException", buf2); 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 674b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown result = isLoggable(chars, level); 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 698451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(tag, chars); 714b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown return result; 724b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown} 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 744b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brownbool android_util_Log_isVerboseLogEnabled(const char* tag) { 754b57553e693c9705e8363d3e0e9d881261b3e6faJeff Brown return isLoggable(tag, levels.verbose); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * In class android.util.Log: 8000bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato * public static native int println_native(int buffer, int priority, String tag, String msg) 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8200bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onoratostatic jint android_util_Log_println_native(JNIEnv* env, jobject clazz, 8300bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato jint bufID, jint priority, jstring tagObj, jstring msgObj) 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* tag = NULL; 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* msg = NULL; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (msgObj == NULL) { 898451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes jniThrowNullPointerException(env, "println needs a message"); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9300bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato if (bufID < 0 || bufID >= LOG_ID_MAX) { 948451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes jniThrowNullPointerException(env, "bad bufID"); 9500bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato return -1; 9600bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato } 9700bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tagObj != NULL) 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tag = env->GetStringUTFChars(tagObj, NULL); 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project msg = env->GetStringUTFChars(msgObj, NULL); 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10200bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato int res = __android_log_buf_write(bufID, (android_LogPriority)priority, tag, msg); 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (tag != NULL) 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(tagObj, tag); 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(msgObj, msg); 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return res; 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * JNI registration. 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11476f6a86de25e1bf74717e047e55fd44b089673f3Daniel Micaystatic const JNINativeMethod gMethods[] = { 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* name, signature, funcPtr */ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { "isLoggable", "(Ljava/lang/String;I)Z", (void*) android_util_Log_isLoggable }, 11700bb93823d082c31d757bd7b75a8615afbd2c1a5Joe Onorato { "println_native", "(IILjava/lang/String;Ljava/lang/String;)I", (void*) android_util_Log_println_native }, 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_util_Log(JNIEnv* env) 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 122ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe jclass clazz = FindClassOrDie(env, "android/util/Log"); 1238451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 124ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe levels.verbose = env->GetStaticIntField(clazz, GetStaticFieldIDOrDie(env, clazz, "VERBOSE", "I")); 125ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe levels.debug = env->GetStaticIntField(clazz, GetStaticFieldIDOrDie(env, clazz, "DEBUG", "I")); 126ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe levels.info = env->GetStaticIntField(clazz, GetStaticFieldIDOrDie(env, clazz, "INFO", "I")); 127ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe levels.warn = env->GetStaticIntField(clazz, GetStaticFieldIDOrDie(env, clazz, "WARN", "I")); 128ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe levels.error = env->GetStaticIntField(clazz, GetStaticFieldIDOrDie(env, clazz, "ERROR", "I")); 129ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe levels.assert = env->GetStaticIntField(clazz, GetStaticFieldIDOrDie(env, clazz, "ASSERT", "I")); 1308451b25a4422656bbd6657a5855e69c0f4d53c74Elliott Hughes 131ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe return RegisterMethodsOrDie(env, "android/util/Log", gMethods, NELEM(gMethods)); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; // namespace android 135