ZMQ_HWM split into ZMQ_SNDHWM and ZMQ_RCVHWM

These new options allow to control the maximum size of the
inbound and outbound message pipe separately.

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/options.hpp b/src/options.hpp
index 971e643..9ba06e3 100644
--- a/src/options.hpp
+++ b/src/options.hpp
@@ -35,8 +35,9 @@ namespace zmq
         int setsockopt (int option_, const void *optval_, size_t optvallen_);
         int getsockopt (int option_, void *optval_, size_t *optvallen_);
 
-        //  High-water mark for messages in pipe.
-        int hwm;
+        //  High-water marks for message pipes.
+        int sndhwm;
+        int rcvhwm;
 
         uint64_t affinity;
         blob_t identity;