log: allow to resore default log function

Signed-off-by: Ran Benita <ran234@gmail.com>

diff --git a/src/context.c b/src/context.c
index e373d1a..81c008b 100644 (file)
--- a/src/context.c
+++ b/src/context.c
@@ -334,7 +334,7 @@ xkb_set_log_fn(struct xkb_context *ctx,
                void (*log_fn)(struct xkb_context *ctx, int priority,
                               const char *fmt, va_list args))
 {
-    ctx->log_fn = log_fn;
+    ctx->log_fn = (log_fn ? log_fn : default_log_fn);
 }
 
 XKB_EXPORT int

diff --git a/xkbcommon/xkbcommon.h b/xkbcommon/xkbcommon.h
index 8c772ae..2b3f8e3 100644 (file)
--- a/xkbcommon/xkbcommon.h
+++ b/xkbcommon/xkbcommon.h
@@ -257,8 +257,8 @@ xkb_context_unref(struct xkb_context *context);
  */
 
 /**
- * Sets the function to be called for logging messages, instead of the
- * default logger which writes to stderr.
+ * Sets the function to be called for logging messages.
+ * Passing NULL restores the default function, which logs to stderr.
  **/
 void
 xkb_set_log_fn(struct xkb_context *context,