From b4d6df902253637f24647d3db2bc3781d69eec1c Mon Sep 17 00:00:00 2001
From: Joel Klinghed <the_jk@spawned.biz>
Date: Thu, 20 Feb 2025 22:54:56 +0100
Subject: Initial commit

---
 src/logger.hh | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 src/logger.hh

(limited to 'src/logger.hh')

diff --git a/src/logger.hh b/src/logger.hh
new file mode 100644
index 0000000..48d21a7
--- /dev/null
+++ b/src/logger.hh
@@ -0,0 +1,51 @@
+#ifndef LOGGER_HH
+#define LOGGER_HH
+
+#include <memory>
+
+class Logger {
+public:
+  virtual ~Logger() = default;
+
+  static std::unique_ptr<Logger> create_stdio();
+  static std::unique_ptr<Logger> create_null();
+
+  virtual void err(char const* format, ...)
+#if HAVE_ATTRIBUTE_FORMAT
+    __attribute__((format(printf, 2, 3)))  // this takes up 1
+#endif  // HAVE_ATTRIBUTE_FORMAT
+    = 0;
+
+  virtual void warn(char const* format, ...)
+#if HAVE_ATTRIBUTE_FORMAT
+    __attribute__((format(printf, 2, 3)))
+#endif  // HAVE_ATTRIBUTE_FORMAT
+    = 0;
+
+  virtual void info(char const* format, ...)
+#if HAVE_ATTRIBUTE_FORMAT
+    __attribute__((format(printf, 2, 3)))
+#endif  // HAVE_ATTRIBUTE_FORMAT
+    = 0;
+
+#ifdef NDEBUG
+  void dbg(char const*, ...)
+#if HAVE_ATTRIBUTE_FORMAT
+    __attribute__((format(printf, 2, 3)))
+#endif  // HAVE_ATTRIBUTE_FORMAT
+  {}
+#else
+  virtual void dbg(char const* format, ...)
+#if HAVE_ATTRIBUTE_FORMAT
+    __attribute__((format(printf, 2, 3)))
+#endif  // HAVE_ATTRIBUTE_FORMAT
+    = 0;
+#endif
+
+protected:
+  Logger() = default;
+  Logger(Logger const&) = delete;
+  Logger& operator=(Logger const&) = delete;
+};
+
+#endif  // LOGGER_HH
-- 
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