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firmware/application/log_file.cpp

@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "log_file.hpp"
+
+#include "string_format.hpp"
+
+#include "lpc43xx_cpp.hpp"
+using namespace lpc43xx;
+
+LogFile::LogFile(
+	const std::string file_path
+) : file_path { file_path }
+{
+	file.open_for_append(file_path);
+
+	sd_card_status_signal_token = sd_card::status_signal += [this](const sd_card::Status status) {
+		this->on_sd_card_status(status);
+	};
+}
+
+LogFile::~LogFile() {
+	sd_card::status_signal -= sd_card_status_signal_token;
+
+	file.close();
+}
+
+bool LogFile::is_ready() {
+	return file.is_ready();
+}
+
+bool LogFile::write_entry(const rtc::RTC& datetime, const std::string& entry) {
+	std::string timestamp = to_string_timestamp(datetime);
+	return write(timestamp + " " + entry + "\r\n");
+}
+
+bool LogFile::write(const std::string& message) {
+	return file.puts(message) && file.sync();
+}
+
+void LogFile::on_sd_card_status(const sd_card::Status status) {
+	if( status == sd_card::Status::Mounted ) {
+		file.open_for_append(file_path);
+	} else {
+		file.close();		
+	}
+}