X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fpayload-view.h;h=57a8342d70578c7be479c3bacfc6035a203937d9;hb=48a4000561343808724f7cb5fa8c131877489ccd;hp=47c2c8c917d29e33e6956818ff0b2f31de9db1aa;hpb=18eec1c924daf8d63a5f2cc06b1c1fdd9a838c6e;p=lttng-tools.git

diff --git a/src/common/payload-view.h b/src/common/payload-view.h
index 47c2c8c91..57a8342d7 100644
--- a/src/common/payload-view.h
+++ b/src/common/payload-view.h
@@ -53,6 +53,17 @@ struct lttng_payload_view {
 	} _iterator;
 };
 
+/**
+ * Checks if a payload view's buffer is safe to access.
+ *
+ * After calling the payload view creation functions, callers should verify
+ * if the resquested length (if any is explicitly provided) could be mapped
+ * to a new view.
+ *
+ * @view	Payload to validate
+ */
+bool lttng_payload_view_is_valid(const struct lttng_payload_view *view);
+
 /**
  * Return a payload view referencing a subset of a payload.
  *
@@ -62,7 +73,6 @@ struct lttng_payload_view {
  *		cause the view to reference the whole payload from the
  *		offset provided.
  */
-LTTNG_HIDDEN
 struct lttng_payload_view lttng_payload_view_from_payload(
 		const struct lttng_payload *payload, size_t offset,
 		ptrdiff_t len);
@@ -77,7 +87,6 @@ struct lttng_payload_view lttng_payload_view_from_payload(
  *		cause the payload view to reference the whole payload view's
  *		buffer view from the offset provided.
  */
-LTTNG_HIDDEN
 struct lttng_payload_view lttng_payload_view_from_view(
 		struct lttng_payload_view *view, size_t offset,
 		ptrdiff_t len);
@@ -94,7 +103,6 @@ struct lttng_payload_view lttng_payload_view_from_view(
  *		cause the payload view to reference the whole payload from the
  *		offset provided.
  */
-LTTNG_HIDDEN
 struct lttng_payload_view lttng_payload_view_from_dynamic_buffer(
 		const struct lttng_dynamic_buffer *buffer, size_t offset,
 		ptrdiff_t len);
@@ -111,7 +119,6 @@ struct lttng_payload_view lttng_payload_view_from_dynamic_buffer(
  *		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);
@@ -127,7 +134,6 @@ struct lttng_payload_view lttng_payload_view_from_buffer_view(
  * 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);
 
@@ -138,7 +144,6 @@ struct lttng_payload_view lttng_payload_view_init_from_buffer(
  *
  * Returns the number of file descriptor handles left on success, -1 on error.
  */
-LTTNG_HIDDEN
 int lttng_payload_view_get_fd_handle_count(
 		const struct lttng_payload_view *payload_view);
 
@@ -151,7 +156,6 @@ int lttng_payload_view_get_fd_handle_count(
  *
  * Returns an fd_handle on success, -1 on error.
  */
-LTTNG_HIDDEN
 struct fd_handle *lttng_payload_view_pop_fd_handle(
 		struct lttng_payload_view *payload_view);