From 2412048fc02d00341f735e2b4e3a6b2ccb17a6b8 Mon Sep 17 00:00:00 2001
From: Jari Vetoniemi <mailroxas@gmail.com>
Date: Thu, 1 Nov 2018 03:51:09 +0200
Subject: hide all logging under ASOUND_DEBUG env variable

---
 src/util/util.h | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/util/util.h b/src/util/util.h
index 9e118c2..67c47e0 100644
--- a/src/util/util.h
+++ b/src/util/util.h
@@ -5,10 +5,21 @@
 #include <stddef.h>
 #include <err.h>
 
-#define WARN1(x) do { warn("asound: %s %s", __func__, x); } while (0)
-#define WARN(x, ...) do { warn("asound: %s " x, __func__, ##__VA_ARGS__); } while (0)
-#define WARNX1(x) do { warnx("asound: %s %s", __func__, x); } while (0)
-#define WARNX(x, ...) do { warnx("asound: %s " x, __func__, ##__VA_ARGS__); } while (0)
+static inline int
+do_debug(void)
+{
+   static int debug = -1;
+   if (debug == -1) {
+      const char *env = getenv("ASOUND_DEBUG");
+      debug = (env && !!strcmp(env, "0"));
+   }
+   return debug;
+}
+
+#define WARN1(x) do { if (do_debug()) warn("asound: %s %s", __func__, x); } while(0)
+#define WARN(x, ...) do { if (do_debug()) warn("asound: %s " x, __func__, ##__VA_ARGS__); } while (0)
+#define WARNX1(x) do { if (do_debug()) warnx("asound: %s %s", __func__, x); } while (0)
+#define WARNX(x, ...) do { if (do_debug()) warnx("asound: %s " x, __func__, ##__VA_ARGS__); } while (0)
 #define ERRX1(x, y) do { errx(x, "asound: %s %s", __func__, y); } while (0)
 #define ERRX(x, y, ...) do { errx(x, "asound: %s " y, __func__, ##__VA_ARGS__); } while (0)
 #define ERR(x, y, ...) do { err(x, "asound: %s " y, __func__, ##__VA_ARGS__); } while (0)
-- 
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