ms: Add tbf() method to get the TBF based on the direction

To avoid the need for a switch or conditional statement when needing
a TBF from an MS object in direction independant code, this method
contains that case distinction. For additional flexibility, a
reverse() function is added to get the opposite direction.

Sponsored-by: On-Waves ehf

1 files changed, 5 insertions, 0 deletions

diff --git a/src/tbf.h b/src/tbf.h
index cf8cdfc6..840125a5 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -395,6 +395,11 @@ protected:
 	void maybe_schedule_uplink_acknack(const rlc_ul_header *rh);
 };
 
+inline enum gprs_rlcmac_tbf_direction reverse(enum gprs_rlcmac_tbf_direction dir)
+{
+	return (enum gprs_rlcmac_tbf_direction)
+		((int)GPRS_RLCMAC_UL_TBF - (int)dir + (int)GPRS_RLCMAC_DL_TBF);
+}
 #endif
 
 #ifdef __cplusplus