X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=libringbuffer%2Fshm.h;h=5785b71d8483d26c3684bdd8875c70aa13f00ca2;hb=381c0f1ef474e0ae8a96b3753470ca4bda45c764;hp=22c9afdcbd2beaf557aa894ca37cd975908f3b37;hpb=4e2ee1f5ad0b837440f3b850e971f25db209cca1;p=lttng-ust.git

diff --git a/libringbuffer/shm.h b/libringbuffer/shm.h
index 22c9afdc..5785b71d 100644
--- a/libringbuffer/shm.h
+++ b/libringbuffer/shm.h
@@ -103,4 +103,22 @@ int shm_get_wait_fd(struct shm_handle *handle, struct shm_ref *ref)
 	return obj->wait_fd[0];
 }
 
+static inline
+int shm_get_object_data(struct shm_handle *handle, struct shm_ref *ref,
+		int *shm_fd, int *wait_fd, uint64_t *memory_map_size)
+{
+	struct shm_object_table *table = handle->table;
+	struct shm_object *obj;
+	size_t index;
+
+	index = (size_t) ref->index;
+	if (unlikely(index >= table->allocated_len))
+		return -EPERM;
+	obj = &table->objects[index];
+	*shm_fd = obj->shm_fd;
+	*wait_fd = obj->wait_fd[0];
+	*memory_map_size = obj->memory_map_size;
+	return 0;
+}
+
 #endif /* _LIBRINGBUFFER_SHM_H */