X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fpayload-view.h;h=9e385842b208f1183c9842b1578fe1f3206c6858;hp=f125e8890bf9e2d207f9a9d0a7cd32c05dfb4da7;hb=e368fb4396b9bdb22de16f0c93512c9f6d7ab0b4;hpb=9e620ea7b016fc3fd4e08b5d094ffa40b36b50f6

diff --git a/src/common/payload-view.h b/src/common/payload-view.h
index f125e8890..9e385842b 100644
--- a/src/common/payload-view.h
+++ b/src/common/payload-view.h
@@ -87,7 +87,7 @@ struct lttng_payload_view lttng_payload_view_from_view(
  * from an existing dynamic buffer.
  *
  * @src		Source dynamic buffer to reference
- * @offset	Offset to apply to the payload's buffer
+ * @offset	Offset to apply to the dynamic buffer
  * @len		Length of the buffer contents to reference. Passing -1 will
  *		cause the payload view to reference the whole payload from the
  *		offset provided.
@@ -96,6 +96,48 @@ LTTNG_HIDDEN
 struct lttng_payload_view lttng_payload_view_from_dynamic_buffer(
 		const struct lttng_dynamic_buffer *buffer, size_t offset,
 		ptrdiff_t len);
+/**
+ *
+ * Return a payload view referencing a subset of a dynamic buffer.
+ *
+ * Meant as an adapter for code paths that need to create a payload view
+ * from an existing buffer view.
+ *
+ * @src		Source buffer view to reference
+ * @offset	Offset to apply to the buffer view
+ * @len		Length of the buffer contents to reference. Passing -1 will
+ *		cause the payload view to reference the whole payload from the
+ *		offset provided.
+ */
+LTTNG_HIDDEN
+struct lttng_payload_view lttng_payload_view_from_buffer_view(
+		const struct lttng_buffer_view *view, size_t offset,
+		ptrdiff_t len);
+
+/**
+ * Return a payload 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 payload view never assumes the ownership of the memory it
+ * references.
+ */
+LTTNG_HIDDEN
+struct lttng_payload_view lttng_payload_view_init_from_buffer(
+		const char *src, size_t offset, ptrdiff_t len);
+
+/**
+ * Get the number of file descriptors left in a payload view.
+ *
+ * @payload	Payload instance
+ *
+ * Returns the number of file descriptors left on success, -1 on error.
+ */
+LTTNG_HIDDEN
+int lttng_payload_view_get_fd_count(struct lttng_payload_view *payload_view);
 
 /**
  * Pop an fd from a payload view.