early-access version 1255

externals/cubeb/src/cubeb_log.h

@@ -0,0 +1,54 @@
+/*
+ * Copyright © 2016 Mozilla Foundation
+ *
+ * This program is made available under an ISC-style license.  See the
+ * accompanying file LICENSE for details.
+ */
+
+#ifndef CUBEB_LOG
+#define CUBEB_LOG
+
+#include "cubeb/cubeb.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#define PRINTF_FORMAT(fmt, args) __attribute__((format(printf, fmt, args)))
+#if defined(__FILE_NAME__)
+#define __FILENAME__ __FILE_NAME__
+#else
+#define __FILENAME__ (__builtin_strrchr(__FILE__, '/') ? __builtin_strrchr(__FILE__, '/') + 1 : __FILE__)
+#endif
+#else
+#define PRINTF_FORMAT(fmt, args)
+#include <string.h>
+#define __FILENAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__)
+#endif
+
+extern cubeb_log_level g_cubeb_log_level;
+extern cubeb_log_callback g_cubeb_log_callback PRINTF_FORMAT(1, 2);
+void cubeb_async_log(const char * fmt, ...);
+void cubeb_async_log_reset_threads();
+
+#ifdef __cplusplus
+}
+#endif
+
+#define LOGV(msg, ...) LOG_INTERNAL(CUBEB_LOG_VERBOSE, msg, ##__VA_ARGS__)
+#define LOG(msg, ...) LOG_INTERNAL(CUBEB_LOG_NORMAL, msg, ##__VA_ARGS__)
+
+#define LOG_INTERNAL(level, fmt, ...) do {                                              \
+    if (g_cubeb_log_callback && level <= g_cubeb_log_level) {                           \
+      g_cubeb_log_callback("%s:%d: " fmt "\n",  __FILENAME__, __LINE__, ##__VA_ARGS__); \
+    }                                                                                   \
+  } while(0)
+
+/* Asynchronous verbose logging, to log in real-time callbacks. */
+#define ALOGV(fmt, ...)                   \
+do {                                      \
+  cubeb_async_log(fmt, ##__VA_ARGS__);    \
+} while(0)
+
+#endif // CUBEB_LOG