Fix: pad strings that are modified concurrently with tracing

[lttng-ust.git] / libringbuffer / backend_internal.h

diff --git a/libringbuffer/backend_internal.h b/libringbuffer/backend_internal.h
index 3ab60a7fa327b6b58acb331ecbd2a1a4f74d0185..1045a60c2760ae2314f4d0ab89a7aedcebabf387 100644 (file)
--- a/libringbuffer/backend_internal.h
+++ b/libringbuffer/backend_internal.h
@@ -447,6 +447,18 @@ do {                                                               \
                inline_memcpy(dest, src, __len);                \
 } while (0)
 
+/*
+ * write len bytes to dest with c
+ */
+static inline
+void lib_ring_buffer_do_memset(char *dest, int c, unsigned long len)
+{
+       unsigned long i;
+
+       for (i = 0; i < len; i++)
+               dest[i] = c;
+}
+
 /* arch-agnostic implementation */
 
 static inline int lttng_ust_fls(unsigned int x)