docs: Update FIB documentation

[vpp.git] / src / svm / fifo_segment.h

diff --git a/src/svm/fifo_segment.h b/src/svm/fifo_segment.h
index 195869a..268b48b 100644 (file)
--- a/src/svm/fifo_segment.h
+++ b/src/svm/fifo_segment.h
@@ -104,6 +104,18 @@ fifo_segment_t *fifo_segment_get_segment (fifo_segment_main_t * sm,
 u32 fifo_segment_index (fifo_segment_main_t * sm, fifo_segment_t * fs);
 void fifo_segment_info (fifo_segment_t * seg, char **address, size_t * size);
 
+always_inline void *
+fifo_segment_ptr (fifo_segment_t *fs, uword offset)
+{
+  return (void *) ((u8 *) fs->h + offset);
+}
+
+always_inline uword
+fifo_segment_offset (fifo_segment_t *fs, void *p)
+{
+  return (uword) ((u8 *) p - (u8 *) fs->h);
+}
+
 /**
  * Allocate fifo in fifo segment
  *
@@ -116,8 +128,8 @@ svm_fifo_t *fifo_segment_alloc_fifo_w_slice (fifo_segment_t * fs,
                                             u32 slice_index,
                                             u32 data_bytes,
                                             fifo_segment_ftype_t ftype);
-svm_fifo_t *fifo_segment_alloc_fifo_w_shared (fifo_segment_t *fs,
-                                             svm_fifo_shared_t *sf);
+svm_fifo_t *fifo_segment_alloc_fifo_w_offset (fifo_segment_t *fs,
+                                             uword offset);
 
 /**
  * Free fifo allocated in fifo segment
@@ -127,9 +139,10 @@ svm_fifo_t *fifo_segment_alloc_fifo_w_shared (fifo_segment_t *fs,
  */
 void fifo_segment_free_fifo (fifo_segment_t * fs, svm_fifo_t * f);
 
-void fifo_segment_detach_fifo (fifo_segment_t * fs, svm_fifo_t * f);
-void fifo_segment_attach_fifo (fifo_segment_t * fs, svm_fifo_t * f,
+void fifo_segment_detach_fifo (fifo_segment_t *fs, svm_fifo_t **f);
+void fifo_segment_attach_fifo (fifo_segment_t *fs, svm_fifo_t **f,
                               u32 slice_index);
+uword fifo_segment_fifo_offset (svm_fifo_t *f);
 
 /**
  * Allocate message queue on segment