changed option name. +documentation changes

doc/zmq_setsockopt.txt

@@ -421,19 +421,21 @@ Default value:: 0
 Applicable socket types:: ZMQ_ROUTER
 
 
-ZMQ_PROBE_NEW_PEERS: automatically send empty packet to every established connection
+ZMQ_PROBE: automatically send empty packet to every established connection
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-Sets the 'ROUTER' & 'DEALER' sockets behavior to automatically send an empty packet
+Sets the compatible sockets behavior to automatically send an empty packet
 to any new connection made (or accepted) by socket. It could help sockets to
-auto discovery themself. It especially important in 'ROUTER' <-> 'ROUTER' connections
+auto discovery them-self. It especially important in 'ROUTER' <-> 'ROUTER' connections
 where it solves 'who will write first' problems.
+NOTE: Don't set this options for sockets working with ZMQ_REP, ZMQ_REQ sockets.
+It will interfere with their strict synchronous logic and framing.
 
 [horizontal]
 Option value type:: int
 Option value unit:: 0, 1
 Default value:: 0
-Applicable socket types:: ZMQ_ROUTER, ZMQ_DEALER
+Applicable socket types:: ZMQ_ROUTER, ZMQ_DEALER, ZMQ_REP, ZMQ_REQ
 
 
 ZMQ_XPUB_VERBOSE: provide all subscription messages on XPUB sockets

include/zmq.h

@@ -274,7 +274,7 @@ ZMQ_EXPORT int zmq_msg_set (zmq_msg_t *msg, int option, int optval);
 #define ZMQ_CURVE_SERVER 47
 #define ZMQ_CURVE_PUBLICKEY 48
 #define ZMQ_CURVE_SERVERKEY 49
-#define ZMQ_PROBE_NEW_PEERS 50
+#define ZMQ_PROBE 50
 
 /*  Message options                                                           */
 #define ZMQ_MORE 1

src/dealer.cpp

@@ -65,7 +65,7 @@ int zmq::dealer_t::xsetsockopt (int option_, const void *optval_,
     int value = is_int? *((int *) optval_): 0;
 
     switch (option_) {
-        case ZMQ_PROBE_NEW_PEERS:
+        case ZMQ_PROBE:
             if (is_int && value >= 0) {
                 probe_new_peers = value;
                 return 0;

src/router.cpp

@@ -95,7 +95,7 @@ int zmq::router_t::xsetsockopt (int option_, const void *optval_,
             printf ("E: invalid option value (int=%d value=%d)\n", is_int, value);
             break;
 
-        case ZMQ_PROBE_NEW_PEERS:
+        case ZMQ_PROBE:
             if (is_int && value >= 0) {
                 probe_new_peers = value;
                 return 0;