| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "Trace" |
| // #define LOG_NDEBUG 0 |
| |
| #include <inttypes.h> |
| |
| #include <cutils/trace.h> |
| #include <utils/String8.h> |
| #include <log/log.h> |
| |
| #include <nativehelper/JNIHelp.h> |
| #include <nativehelper/ScopedUtfChars.h> |
| #include <nativehelper/ScopedStringChars.h> |
| |
| namespace android { |
| |
| static void sanitizeString(String8& utf8Chars) { |
| size_t size = utf8Chars.size(); |
| char* str = utf8Chars.lockBuffer(size); |
| for (size_t i = 0; i < size; i++) { |
| char c = str[i]; |
| if (c == '\0' || c == '\n' || c == '|') { |
| str[i] = ' '; |
| } |
| } |
| utf8Chars.unlockBuffer(); |
| } |
| |
| static jlong android_os_Trace_nativeGetEnabledTags(JNIEnv* env, jclass clazz) { |
| return atrace_get_enabled_tags(); |
| } |
| |
| static void android_os_Trace_nativeTraceCounter(JNIEnv* env, jclass clazz, |
| jlong tag, jstring nameStr, jint value) { |
| ScopedUtfChars name(env, nameStr); |
| |
| ALOGV("%s: %" PRId64 " %s %d", __FUNCTION__, tag, name.c_str(), value); |
| atrace_int(tag, name.c_str(), value); |
| } |
| |
| static void android_os_Trace_nativeTraceBegin(JNIEnv* env, jclass clazz, |
| jlong tag, jstring nameStr) { |
| ScopedStringChars jchars(env, nameStr); |
| String8 utf8Chars(reinterpret_cast<const char16_t*>(jchars.get()), jchars.size()); |
| sanitizeString(utf8Chars); |
| |
| ALOGV("%s: %" PRId64 " %s", __FUNCTION__, tag, utf8Chars.string()); |
| atrace_begin(tag, utf8Chars.string()); |
| } |
| |
| static void android_os_Trace_nativeTraceEnd(JNIEnv* env, jclass clazz, |
| jlong tag) { |
| |
| ALOGV("%s: %" PRId64, __FUNCTION__, tag); |
| atrace_end(tag); |
| } |
| |
| static void android_os_Trace_nativeAsyncTraceBegin(JNIEnv* env, jclass clazz, |
| jlong tag, jstring nameStr, jint cookie) { |
| ScopedStringChars jchars(env, nameStr); |
| String8 utf8Chars(reinterpret_cast<const char16_t*>(jchars.get()), jchars.size()); |
| sanitizeString(utf8Chars); |
| |
| ALOGV("%s: %" PRId64 " %s %d", __FUNCTION__, tag, utf8Chars.string(), cookie); |
| atrace_async_begin(tag, utf8Chars.string(), cookie); |
| } |
| |
| static void android_os_Trace_nativeAsyncTraceEnd(JNIEnv* env, jclass clazz, |
| jlong tag, jstring nameStr, jint cookie) { |
| ScopedStringChars jchars(env, nameStr); |
| String8 utf8Chars(reinterpret_cast<const char16_t*>(jchars.get()), jchars.size()); |
| sanitizeString(utf8Chars); |
| |
| ALOGV("%s: %" PRId64 " %s %d", __FUNCTION__, tag, utf8Chars.string(), cookie); |
| atrace_async_end(tag, utf8Chars.string(), cookie); |
| } |
| |
| static void android_os_Trace_nativeSetAppTracingAllowed(JNIEnv* env, |
| jclass clazz, jboolean allowed) { |
| ALOGV("%s: %d", __FUNCTION__, allowed); |
| |
| atrace_set_debuggable(allowed); |
| } |
| |
| static void android_os_Trace_nativeSetTracingEnabled(JNIEnv* env, |
| jclass clazz, jboolean enabled) { |
| ALOGV("%s: %d", __FUNCTION__, enabled); |
| |
| atrace_set_tracing_enabled(enabled); |
| } |
| |
| static const JNINativeMethod gTraceMethods[] = { |
| /* name, signature, funcPtr */ |
| { "nativeGetEnabledTags", |
| "()J", |
| (void*)android_os_Trace_nativeGetEnabledTags }, |
| { "nativeSetAppTracingAllowed", |
| "(Z)V", |
| (void*)android_os_Trace_nativeSetAppTracingAllowed }, |
| { "nativeSetTracingEnabled", |
| "(Z)V", |
| (void*)android_os_Trace_nativeSetTracingEnabled }, |
| |
| // ----------- @FastNative ---------------- |
| |
| { "nativeTraceCounter", |
| "(JLjava/lang/String;I)V", |
| (void*)android_os_Trace_nativeTraceCounter }, |
| { "nativeTraceBegin", |
| "(JLjava/lang/String;)V", |
| (void*)android_os_Trace_nativeTraceBegin }, |
| { "nativeTraceEnd", |
| "(J)V", |
| (void*)android_os_Trace_nativeTraceEnd }, |
| { "nativeAsyncTraceBegin", |
| "(JLjava/lang/String;I)V", |
| (void*)android_os_Trace_nativeAsyncTraceBegin }, |
| { "nativeAsyncTraceEnd", |
| "(JLjava/lang/String;I)V", |
| (void*)android_os_Trace_nativeAsyncTraceEnd }, |
| }; |
| |
| int register_android_os_Trace(JNIEnv* env) { |
| int res = jniRegisterNativeMethods(env, "android/os/Trace", |
| gTraceMethods, NELEM(gTraceMethods)); |
| LOG_ALWAYS_FATAL_IF(res < 0, "Unable to register native methods."); |
| |
| return 0; |
| } |
| |
| } // namespace android |