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Added system check at start of selftests

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- tests that system can provide at least 1,000 sockets
- we could expand on this but this covers the main case of OS/X
  having a too-low default limit of 256 handles per process
This commit is contained in:
Pieter Hintjens 2013-09-04 19:38:15 +02:00
parent 6612280946
commit 32fa426e61
3 changed files with 55 additions and 1 deletions
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1
.gitignore vendored
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@ -23,6 +23,7 @@ autom4te.cache
tools/curve_keygen.o
tools/curve_keygen
tests/test_term_endpoint
tests/test_system
tests/test_monitor
tests/test_last_endpoint
tests/test_pair_inproc

4
tests/Makefile.am
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@ -3,7 +3,8 @@ INCLUDES = -I$(top_builddir)/include \
LDADD = $(top_builddir)/src/libzmq.la
noinst_PROGRAMS = test_pair_inproc \
noinst_PROGRAMS = test_system \
test_pair_inproc \
test_pair_tcp \
test_reqrep_inproc \
test_reqrep_tcp \
@ -44,6 +45,7 @@ noinst_PROGRAMS += test_shutdown_stress \
test_fork
endif
test_system_SOURCES = test_system.cpp
test_pair_inproc_SOURCES = test_pair_inproc.cpp testutil.hpp
test_pair_tcp_SOURCES = test_pair_tcp.cpp testutil.hpp
test_reqrep_inproc_SOURCES = test_reqrep_inproc.cpp testutil.hpp

51
tests/test_system.cpp Normal file
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@ -0,0 +1,51 @@
/*
Copyright (c) 2007-2013 Contributors as noted in the AUTHORS file
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../include/zmq.h"
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>
#include <assert.h>
// This test case stresses the system to shake out known configuration
// problems. We're not using libzmq here but direct system calls. Note
// that code may need wrapping to be properly portable.
int main (void)
{
// Check that we can create 1,000 sockets
int handle [1000];
int count;
for (count = 0; count < 1000; count++) {
handle [count] = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (handle [count] == -1) {
printf ("W: Only able to create %d sockets on this box\n", count);
printf ("I: Tune your system to increase maximum allowed file handles\n");
#if defined (ZMQ_HAVE_OSX)
printf ("I: On OS/X, run 'ulimit -n 1200' in bash");
#elseif defined (ZMQ_HAVE_LINUX)
printf ("I: On Linux, run 'ulimit -n 1200' in bash");
#endif
return -1;
}
}
// Release the socket handles
while (count)
close (handle [count--]);
}