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/*
* 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 <JNIHelp.h>
#include <ScopedUtfChars.h>
#include <ScopedStringChars.h>
#include <utils/String8.h>
#include <cutils/trace.h>
#include <cutils/log.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 },
{ "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 },
{ "nativeSetAppTracingAllowed",
"(Z)V",
(void*)android_os_Trace_nativeSetAppTracingAllowed },
{ "nativeSetTracingEnabled",
"(Z)V",
(void*)android_os_Trace_nativeSetTracingEnabled },
};
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
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