Add a util to create a buffer view from a raw buffer

[lttng-tools.git] / src / common / buffer-view.h

diff --git a/src/common/buffer-view.h b/src/common/buffer-view.h
index d2b18f663a0d8596889d2346aba33df11dc2d024..878b845bc77412bb801f81207a1bd38b5a0fd13e 100644 (file)
--- a/src/common/buffer-view.h
+++ b/src/common/buffer-view.h
@@ -29,6 +29,21 @@ struct lttng_buffer_view {
        size_t size;
 };
 
+/**
+ * Return a buffer view referencing a subset of the memory referenced by a raw
+ * pointer.
+ *
+ * @src                Source buffer to reference
+ * @offset     Offset to apply to the source memory buffer
+ * @len                Length of the memory contents to reference.
+ *
+ * Note that a buffer view never assumes the ownership of the memory it
+ * references.
+ */
+LTTNG_HIDDEN
+struct lttng_buffer_view lttng_buffer_view_init(
+               const char *src, size_t offset, ptrdiff_t len);
+
 /**
  * Return a buffer view referencing a subset of the memory referenced by another
  * view.