Revert "Revert "Move libprotocan to hardware/interfaces/automotive domain""
Fixed the offending line :(
This reverts commit 7f6d54c371b3480ccd07b747a872418443c76937.
Bug: 213244647
Change-Id: Ic90560ea970705a42466ece3ba2d7422f37a706e
diff --git a/automotive/can/1.0/tools/libprotocan/MessageCounter.cpp b/automotive/can/1.0/tools/libprotocan/MessageCounter.cpp
new file mode 100644
index 0000000..ef9882f
--- /dev/null
+++ b/automotive/can/1.0/tools/libprotocan/MessageCounter.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#include <libprotocan/MessageCounter.h>
+
+#include <android-base/logging.h>
+
+namespace android::hardware::automotive::protocan {
+
+/** Whether to log counter state messages. */
+static constexpr bool kSuperVerbose = false;
+
+MessageCounter::MessageCounter(Signal signal) : upperBound(signal.maxValue + 1), mSignal(signal) {}
+
+Signal::value MessageCounter::next() const {
+ CHECK(mCurrent.has_value()) << "Counter not initialized. Did you call isReady?";
+ return (*mCurrent + 1) % upperBound;
+}
+
+void MessageCounter::read(const can::V1_0::CanMessage& msg) {
+ auto val = mSignal.get(msg);
+
+ if (!mCurrent.has_value()) {
+ LOG(VERBOSE) << "Got first counter val of " << val;
+ mCurrent = val;
+ return;
+ }
+
+ auto nextVal = next();
+ if (nextVal == val) {
+ if constexpr (kSuperVerbose) {
+ LOG(VERBOSE) << "Got next counter val of " << nextVal;
+ }
+ mCurrent = nextVal;
+ } else {
+ LOG(DEBUG) << "Ignoring next counter val of " << val << ", waiting for " << nextVal;
+ }
+}
+
+bool MessageCounter::isReady() const { return mCurrent.has_value(); }
+
+void MessageCounter::increment(can::V1_0::CanMessage& msg) {
+ auto newVal = next();
+ mCurrent = newVal;
+ mSignal.set(msg, newVal);
+}
+
+} // namespace android::hardware::automotive::protocan