Splitting logging core into poly.

src/poly/logging.h

@@ -0,0 +1,77 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2014 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef POLY_LOGGING_H_
+#define POLY_LOGGING_H_
+
+#include <cstdint>
+
+#include <poly/string.h>
+
+namespace poly {
+
+#define POLY_OPTION_ENABLE_LOGGING 1
+#define POLY_OPTION_LOG_ERROR 1
+#define POLY_OPTION_LOG_WARNING 1
+#define POLY_OPTION_LOG_INFO 1
+#define POLY_OPTION_LOG_DEBUG 1
+
+#define POLY_EMPTY_MACRO \
+  do {                   \
+  } while (false)
+
+#if XE_COMPILER_GNUC
+#define POLY_LOG_LINE_ATTRIBUTE __attribute__((format(printf, 5, 6)))
+#else
+#define POLY_LOG_LINE_ATTRIBUTE
+#endif  // GNUC
+void log_line(const char* file_path, const uint32_t line_number,
+              const char level_char, const char* fmt,
+              ...) POLY_LOG_LINE_ATTRIBUTE;
+#undef POLY_LOG_LINE_ATTRIBUTE
+
+void handle_fatal(const char* file_path, const uint32_t line_number,
+                  const char* fmt, ...);
+
+#if POLY_OPTION_ENABLE_LOGGING
+#define PLOGCORE(level, fmt, ...) \
+  poly::log_line(__FILE__, __LINE__, level, fmt, ##__VA_ARGS__)
+#else
+#define PLOGCORE(level, fmt, ...) POLY_EMPTY_MACRO
+#endif  // ENABLE_LOGGING
+
+#define PFATAL(fmt, ...)                                        \
+  do {                                                          \
+    poly::handle_fatal(__FILE__, __LINE__, fmt, ##__VA_ARGS__); \
+  } while (false)
+
+#if POLY_OPTION_LOG_ERROR
+#define PLOGE(fmt, ...) PLOGCORE('!', fmt, ##__VA_ARGS__)
+#else
+#define PLOGE(fmt, ...) POLY_EMPTY_MACRO
+#endif
+#if POLY_OPTION_LOG_WARNING
+#define PLOGW(fmt, ...) PLOGCORE('w', fmt, ##__VA_ARGS__)
+#else
+#define PLOGW(fmt, ...) POLY_EMPTY_MACRO
+#endif
+#if POLY_OPTION_LOG_INFO
+#define PLOGI(fmt, ...) PLOGCORE('i', fmt, ##__VA_ARGS__)
+#else
+#define PLOGI(fmt, ...) POLY_EMPTY_MACRO
+#endif
+#if POLY_OPTION_LOG_DEBUG
+#define PLOGD(fmt, ...) PLOGCORE('d', fmt, ##__VA_ARGS__)
+#else
+#define PLOGD(fmt, ...) POLY_EMPTY_MACRO
+#endif
+
+}  // namespace poly
+
+#endif  // POLY_LOGGING_H_