From cadf4ed45137fbb776584b4427694eb783183d7e Mon Sep 17 00:00:00 2001
From: Jerry Zhang <zhangjerry@google.com>
Date: Wed, 2 May 2018 16:56:00 -0700
Subject: recovery: Refactor logging code into logging.cpp

Move common logging related functions to
rotate_logs.cpp, and rename that to logging.cpp.

Test: Recovery works
Bug: 78793464
Change-Id: I00f20a79a296680122b8437d54a87897c5cb2fc7
(cherry picked from commit 3c3f211d1e5698da6eea9e83584acb2dee4ca46e)
---
 logging.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 logging.h

(limited to 'logging.h')

diff --git a/logging.h b/logging.h
new file mode 100644
index 000000000..3cfbc7af6
--- /dev/null
+++ b/logging.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2016 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.
+ */
+
+#ifndef _LOGGING_H
+#define _LOGGING_H
+
+#include <stddef.h>
+#include <sys/types.h>
+
+#include <string>
+
+#include <log/log_id.h>
+
+static constexpr int KEEP_LOG_COUNT = 10;
+
+ssize_t logbasename(log_id_t id, char prio, const char* filename, const char* buf, size_t len,
+                    void* arg);
+
+ssize_t logrotate(log_id_t id, char prio, const char* filename, const char* buf, size_t len,
+                  void* arg);
+
+// Rename last_log -> last_log.1 -> last_log.2 -> ... -> last_log.$max.
+// Similarly rename last_kmsg -> last_kmsg.1 -> ... -> last_kmsg.$max.
+// Overwrite any existing last_log.$max and last_kmsg.$max.
+void rotate_logs(const char* last_log_file, const char* last_kmsg_file);
+
+// In turn fflush(3)'s, fsync(3)'s and fclose(3)'s the given stream.
+void check_and_fclose(FILE* fp, const std::string& name);
+
+void copy_log_file_to_pmsg(const std::string& source, const std::string& destination);
+void copy_log_file(const std::string& source, const std::string& destination, bool append);
+void copy_logs(bool modified_flash, bool has_cache);
+void reset_tmplog_offset();
+
+void save_kernel_log(const char* destination);
+
+#endif  //_LOGGING_H
-- 
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