I built the czmq-stream-client.c and czmq-stream-server.c and did an strace on
the server.I got the same result (errno 9 returned by getsockopt).
(src/zsock.c:1524)Called by zsock_resolve (self=0x603da0)
The strace shows that first argument op getsockopt is not a valid socket.
Should by 9 in this case.
20120 socket(PF_INET, SOCK_STREAM|SOCK_CLOEXEC, IPPROTO_TCP) = 920120
setsockopt(9, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 020120 bind(9,
{sa_family=AF_INET, sin_port=htons(5555), sin_addr=inet_addr("0.0.0.0")}, 16) =
020120 listen(9, 100) = 020120 getsockname(9,
{sa_family=AF_INET, sin_port=htons(5555), sin_addr=inet_addr("0.0.0.0")}, [16])
= 020120 write(6, "\1\0\0\0\0\0\0\0", 8) = 820120 write(8,
"\1\0\0\0\0\0\0\0", 8) = 820120 getsockopt(888436816, SOL_SOCKET, SO_TYPE,
0x7fff68fa93d8, 0x7fff68fa93d4) = -1 EBADF (Bad file descriptor)
From: [email protected]
To: [email protected]
Date: Mon, 22 Jun 2015 08:56:21 +0200
Subject: [zeromq-dev] bstarcli, Bad file descriptor returned, getsockopt
Platform: CentOSzeromq-4.1.2czmq-3.0.2
I built the bstarsrv2 and bstarcli from the C examples zguide tree(git clone
--depth=1 git://github.com/imatix/zguide.git)
When I look at trace a noticed the error returned by getsockopt:
getsockopt(2300165744, SOL_SOCKET, SO_TYPE, 0x7fff9f74b3bc, 0x7fff9f74b3b8) =
-1 EBADF (Bad file descriptor)
sock_type is -1
Call stack:(gdb) bt#0 zsock_resolve (self=0x604da0) at src/zsock.c:1525#1
0x00007ffff7b3afad in zstr_recv (source=<value optimized out>) at
src/zstr.c:63#2 0x0000000000400b3f in main () at bstarcli.c:44
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