void GraphicLog::logImpl(int32_t tag, int32_t buffer)
{
uint8_t scratch[2 + 2 + sizeof(int32_t) + sizeof(int64_t)];
size_t pos = 0;
scratch[pos++] = EVENT_TYPE_LIST;
scratch[pos++] = 2;
writeInt32(scratch, pos, buffer);
writeInt64(scratch, pos, ns2ms( systemTime( SYSTEM_TIME_MONOTONIC ) ));
android_bWriteLog(tag, scratch, sizeof(scratch));
}
/*
* In class android.util.EventLog:
* static native int writeEvent(long tag, Object... value)
*/
static jint android_util_EventLog_writeEvent_Array(JNIEnv* env, jobject clazz,
jint tag, jobjectArray value) {
if (value == NULL) {
return android_util_EventLog_writeEvent_String(env, clazz, tag, NULL);
}
uint8_t buf[MAX_EVENT_PAYLOAD];
const size_t max = sizeof(buf) - 1; // leave room for final newline
size_t pos = 2; // Save room for type tag & array count
jsize copied = 0, num = env->GetArrayLength(value);
for (; copied < num && copied < 255; ++copied) {
jobject item = env->GetObjectArrayElement(value, copied);
if (item == NULL || env->IsInstanceOf(item, gStringClass)) {
if (pos + 1 + sizeof(jint) > max) break;
const char *str = item != NULL ? env->GetStringUTFChars((jstring) item, NULL) : "NULL";
jint len = strlen(str);
if (pos + 1 + sizeof(len) + len > max) len = max - pos - 1 - sizeof(len);
buf[pos++] = EVENT_TYPE_STRING;
memcpy(&buf[pos], &len, sizeof(len));
memcpy(&buf[pos + sizeof(len)], str, len);
pos += sizeof(len) + len;
if (item != NULL) env->ReleaseStringUTFChars((jstring) item, str);
} else if (env->IsInstanceOf(item, gIntegerClass)) {
jint intVal = env->GetIntField(item, gIntegerValueID);
if (pos + 1 + sizeof(intVal) > max) break;
buf[pos++] = EVENT_TYPE_INT;
memcpy(&buf[pos], &intVal, sizeof(intVal));
pos += sizeof(intVal);
} else if (env->IsInstanceOf(item, gLongClass)) {
jlong longVal = env->GetLongField(item, gLongValueID);
if (pos + 1 + sizeof(longVal) > max) break;
buf[pos++] = EVENT_TYPE_LONG;
memcpy(&buf[pos], &longVal, sizeof(longVal));
pos += sizeof(longVal);
} else if (env->IsInstanceOf(item, gFloatClass)) {
jfloat floatVal = env->GetFloatField(item, gFloatValueID);
if (pos + 1 + sizeof(floatVal) > max) break;
buf[pos++] = EVENT_TYPE_FLOAT;
memcpy(&buf[pos], &floatVal, sizeof(floatVal));
pos += sizeof(floatVal);
} else {
jniThrowException(env,
"java/lang/IllegalArgumentException",
"Invalid payload item type");
return -1;
}
env->DeleteLocalRef(item);
}
buf[0] = EVENT_TYPE_LIST;
buf[1] = copied;
buf[pos++] = '\n';
return android_bWriteLog(tag, buf, pos);
}
/*
* In class android.util.EventLog:
* static native int writeEvent(int tag, String value)
*/
static jint android_util_EventLog_writeEvent_String(JNIEnv* env, jobject clazz,
jint tag, jstring value) {
uint8_t buf[MAX_EVENT_PAYLOAD];
// Don't throw NPE -- I feel like it's sort of mean for a logging function
// to be all crashy if you pass in NULL -- but make the NULL value explicit.
const char *str = value != NULL ? env->GetStringUTFChars(value, NULL) : "NULL";
jint len = strlen(str);
const int max = sizeof(buf) - sizeof(len) - 2; // Type byte, final newline
if (len > max) len = max;
buf[0] = EVENT_TYPE_STRING;
memcpy(&buf[1], &len, sizeof(len));
memcpy(&buf[1 + sizeof(len)], str, len);
buf[1 + sizeof(len) + len] = '\n';
if (value != NULL) env->ReleaseStringUTFChars(value, str);
return android_bWriteLog(tag, buf, 2 + sizeof(len) + len);
}