MINOR: sample: add function for browsing samples.
This function is useful with the incoming lua functions.
diff --git a/src/sample.c b/src/sample.c
index 4c0d303..896f689 100644
--- a/src/sample.c
+++ b/src/sample.c
@@ -384,6 +384,49 @@
return NULL;
}
+/* This fucntion browse the list of available saple fetch. <current> is
+ * the last used sample fetch. If it is the first call, it must set to NULL.
+ * <idx> is the index of the next sampleèfetch entry. It is used as private
+ * value. It is useles to initiate it.
+ *
+ * It returns always the newt fetch_sample entry, and NULL when the end of
+ * the list is reached.
+ */
+struct sample_fetch *sample_fetch_getnext(struct sample_fetch *current, int *idx)
+{
+ struct sample_fetch_kw_list *kwl;
+ struct sample_fetch *base;
+
+ if (!current) {
+ /* Get first kwl entry. */
+ kwl = LIST_NEXT(&sample_fetches.list, struct sample_fetch_kw_list *, list);
+ (*idx) = 0;
+ } else {
+ /* Get kwl corresponding to the curret entry. */
+ base = current + 1 - (*idx);
+ kwl = container_of(base, struct sample_fetch_kw_list, kw);
+ }
+
+ while (1) {
+
+ /* Check if kwl is the last entry. */
+ if (&kwl->list == &sample_fetches.list)
+ return NULL;
+
+ /* idx contain the next keyword. If it is available, return it. */
+ if (kwl->kw[*idx].kw) {
+ (*idx)++;
+ return &kwl->kw[(*idx)-1];
+ }
+
+ /* get next entry in the main list, and return NULL if the end is reached. */
+ kwl = LIST_NEXT(&kwl->list, struct sample_fetch_kw_list *, list);
+
+ /* Set index to 0, ans do one other loop. */
+ (*idx) = 0;
+ }
+}
+
/*
* Returns the pointer on sample format conversion keyword structure identified by
* string of <len> in buffer <kw>.