Match namespace and directory structure

1 files changed, 44 insertions, 0 deletions

diff --git a/src/utility/logger.h b/src/utility/logger.h
new file mode 100644
index 0000000..475f33d
--- /dev/null
+++ b/src/utility/logger.h
@@ -0,0 +1,44 @@
+#ifndef CHANGE_SRC_LOGGER_H_
+#define CHANGE_SRC_LOGGER_H_
+
+#include <ext/stdio_filebuf.h>
+
+#include <boost/process.hpp>
+
+#include <iostream>
+
+namespace utility {
+
+class Logger {
+	public:
+		Logger(const int target_fd):
+			buffer_(target_fd, std::ios::out),
+			stream_(&this->buffer_) { }
+
+		void append(const std::string& msg) {
+			this->stream_ << msg << std::endl;
+		}
+
+		// Forward the contents of a given standard output stream to the log target
+		//
+		// While `this->stream_ << stream.rdbuf()` would be more effective it sadly
+		// does not work with `boost::process::pistream` due to a broken pipe error
+		// in conjunction with the required `boost::process::capture_stream` context
+		// flag.
+		//
+		void forward(boost::process::pistream& stream) {
+			this->stream_ << std::string(
+				(std::istreambuf_iterator<char>(stream)),
+				(std::istreambuf_iterator<char>())
+			);
+		}
+
+	private:
+		__gnu_cxx::stdio_filebuf<char> buffer_;
+		std::ostream                   stream_;
+
+};
+
+}
+
+#endif  // CHANGE_SRC_LOGGER_H_