osmux: Test cid allocation and de-allocation
* Test that one can get an id
* That they are assigned predicatble right now
* That returning them will make the number of used ones go down
* That allocating more will fail
diff --git a/openbsc/src/libmgcp/mgcp_osmux.c b/openbsc/src/libmgcp/mgcp_osmux.c
index 90b7368..b0ef69f 100644
--- a/openbsc/src/libmgcp/mgcp_osmux.c
+++ b/openbsc/src/libmgcp/mgcp_osmux.c
@@ -532,6 +532,20 @@
/* bsc-nat allocates/releases the Osmux circuit ID */
static uint8_t osmux_cid_bitmap[16];
+int osmux_used_cid(void)
+{
+ int i, j, used = 0;
+
+ for (i = 0; i < sizeof(osmux_cid_bitmap) / 8; i++) {
+ for (j = 0; j < 8; j++) {
+ if (osmux_cid_bitmap[i] & (1 << j))
+ used += 1;
+ }
+ }
+
+ return used;
+}
+
int osmux_get_cid(void)
{
int i, j;