Add AIDL implementation for the vendor HAL service.
Bug: 205044134
Test: Pass AIDL VTS tests and regression tests.
Change-Id: Iad04ce01f71fc220443e05a4be05d7d5545227e8
diff --git a/wifi/aidl/default/ringbuffer.cpp b/wifi/aidl/default/ringbuffer.cpp
new file mode 100644
index 0000000..9d08a73
--- /dev/null
+++ b/wifi/aidl/default/ringbuffer.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2022 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 "ringbuffer.h"
+
+#include <android-base/logging.h>
+
+namespace aidl {
+namespace android {
+namespace hardware {
+namespace wifi {
+
+Ringbuffer::Ringbuffer(size_t maxSize) : size_(0), maxSize_(maxSize) {}
+
+enum Ringbuffer::AppendStatus Ringbuffer::append(const std::vector<uint8_t>& input) {
+ if (input.size() == 0) {
+ return AppendStatus::FAIL_IP_BUFFER_ZERO;
+ }
+ if (input.size() > maxSize_) {
+ LOG(INFO) << "Oversized message of " << input.size() << " bytes is dropped";
+ return AppendStatus::FAIL_IP_BUFFER_EXCEEDED_MAXSIZE;
+ }
+ data_.push_back(input);
+ size_ += input.size() * sizeof(input[0]);
+ while (size_ > maxSize_) {
+ if (data_.front().size() <= 0 || data_.front().size() > maxSize_) {
+ LOG(ERROR) << "First buffer in the ring buffer is Invalid. Size: "
+ << data_.front().size();
+ return AppendStatus::FAIL_RING_BUFFER_CORRUPTED;
+ }
+ size_ -= data_.front().size() * sizeof(data_.front()[0]);
+ data_.pop_front();
+ }
+ return AppendStatus::SUCCESS;
+}
+
+const std::list<std::vector<uint8_t>>& Ringbuffer::getData() const {
+ return data_;
+}
+
+void Ringbuffer::clear() {
+ data_.clear();
+ size_ = 0;
+}
+
+} // namespace wifi
+} // namespace hardware
+} // namespace android
+} // namespace aidl