move ringbuffer interactions to wifi hal
Shallow copy of ringbuffer is stored inside the hal.
The maximum ringbuffer size is configured by the
framework.
overrides IBase::debug to:
1. write ringbuffers in memory to flash (wifi tombstones)
2. write wifi tombstones to lshal debug fd in archived format
Bug: 70171481
Test: compile, run on device
Test: run "lshal debug android.hardware.wifi@1.2::IWifi >>
archive.cpio" and compared archived files with originals using diff command
Change-Id: I33c30e37f245cfa36e005ba8cdc46e91f6de9237
diff --git a/wifi/1.2/default/ringbuffer.cpp b/wifi/1.2/default/ringbuffer.cpp
new file mode 100644
index 0000000..5511f2f
--- /dev/null
+++ b/wifi/1.2/default/ringbuffer.cpp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2018 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"
+
+namespace android {
+namespace hardware {
+namespace wifi {
+namespace V1_2 {
+namespace implementation {
+
+Ringbuffer::Ringbuffer(size_t maxSize) : size_(0), maxSize_(maxSize) {}
+
+void Ringbuffer::append(const std::vector<uint8_t>& input) {
+ if (input.size() == 0) {
+ return;
+ }
+ data_.push_back(input);
+ size_ += input.size() * sizeof(input[0]);
+ while (size_ > maxSize_) {
+ size_ -= data_.front().size() * sizeof(data_.front()[0]);
+ data_.pop_front();
+ }
+}
+
+const std::list<std::vector<uint8_t>>& Ringbuffer::getData() const {
+ return data_;
+}
+
+} // namespace implementation
+} // namespace V1_2
+} // namespace wifi
+} // namespace hardware
+} // namespace android