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Close file descriptors on exec (issue 218)

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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>
This commit is contained in:
Martin Sustrik
2011-09-02 15:34:12 +02:00
parent 2910a728dc
commit 8b7ac4c2a9
8 changed files with 37 additions and 9 deletions
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5
src/tcp_address.cpp
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@@ -25,6 +25,7 @@
#include "platform.hpp"
#include "stdint.hpp"
#include "err.hpp"
#include "ip.hpp"
#ifdef ZMQ_HAVE_WINDOWS
#include "windows.hpp"
@@ -56,7 +57,7 @@ int zmq::tcp_address_t::resolve_nic_name (const char *nic_, bool ipv4only_)
(void) ipv4only_;
// Create a socket.
int fd = socket (AF_INET, SOCK_DGRAM, 0);
int fd = open_socket (AF_INET, SOCK_DGRAM, 0);
zmq_assert (fd != -1);
// Retrieve number of interfaces.
@@ -121,7 +122,7 @@ int zmq::tcp_address_t::resolve_nic_name (const char *nic_, bool ipv4only_)
(void) ipv4only_;
// Create a socket.
int sd = socket (AF_INET, SOCK_DGRAM, 0);
int sd = open_socket (AF_INET, SOCK_DGRAM, 0);
zmq_assert (sd != -1);
struct ifreq ifr;