Close file descriptors on exec (issue 218)

When exec is executed to start a different process image old
0MQ file descriptors could stay open, thus blocking TCP ports
and alike. This patch should solve the problem.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/src/ip.hpp b/src/ip.hpp
index f1a1668..d8553de 100644
--- a/src/ip.hpp
+++ b/src/ip.hpp
@@ -26,6 +26,9 @@
 namespace zmq
 {
 
+    //  Same as socket(2), but allows for transparent tweaking the options.
+    fd_t open_socket (int domain_, int type_, int protocol_);
+
     //  Tunes the supplied TCP socket for the best latency.
     void tune_tcp_socket (fd_t s_);