upload android base code part6

android/system/media/audio_utils/ErrorLog.cpp

@@ -0,0 +1,51 @@
+/*
+ * Copyright 2017 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_NDEBUG 0
+#define LOG_TAG "audio_utils_ErrorLog"
+#include <log/log.h>
+
+#include <audio_utils/ErrorLog.h>
+
+using namespace android;
+
+error_log_t *error_log_create(size_t entries, int64_t aggregate_ns)
+{
+    return reinterpret_cast<error_log_t *>
+            (new(std::nothrow) ErrorLog<int32_t>(entries, aggregate_ns));
+}
+
+void error_log_log(error_log_t *error_log, int32_t code, int64_t now_ns)
+{
+    if (error_log == nullptr) {
+        return;
+    }
+    reinterpret_cast<ErrorLog<int32_t> *>(error_log)->log(code, now_ns);
+}
+
+int error_log_dump(
+        error_log_t *error_log, int fd, const char *prefix, size_t lines, int64_t limit_ns)
+{
+    if (error_log == nullptr) {
+        return BAD_VALUE;
+    }
+    return reinterpret_cast<ErrorLog<int32_t> *>(error_log)->dump(fd, prefix, lines, limit_ns);
+}
+
+void error_log_destroy(error_log_t *error_log)
+{
+    delete reinterpret_cast<ErrorLog<int32_t> *>(error_log);
+}