1/*
2 Copyright (c) 2007-2017 Contributors as noted in the AUTHORS file
3
4 This file is part of libzmq, the ZeroMQ core engine in C++.
5
6 libzmq is free software; you can redistribute it and/or modify it under
7 the terms of the GNU Lesser General Public License (LGPL) as published
8 by the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 As a special exception, the Contributors give you permission to link
12 this library with independent modules to produce an executable,
13 regardless of the license terms of these independent modules, and to
14 copy and distribute the resulting executable under terms of your choice,
15 provided that you also meet, for each linked independent module, the
16 terms and conditions of the license of that module. An independent
17 module is a module which is not derived from or based on this library.
18 If you modify this library, you must extend this exception to your
19 version of the library.
20
21 libzmq is distributed in the hope that it will be useful, but WITHOUT
22 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
23 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
24 License for more details.
25
26 You should have received a copy of the GNU Lesser General Public License
27 along with this program. If not, see <http://www.gnu.org/licenses/>.
28*/
29
30#include "testutil.hpp"
31#include "testutil_unity.hpp"
32
33#if defined(ZMQ_HAVE_WINDOWS)
34#include <winsock2.h>
35#include <stdexcept>
36#else
37#include <sys/socket.h>
38#include <netinet/in.h>
39#include <unistd.h>
40#endif
41
42SETUP_TEARDOWN_TESTCONTEXT
43
44// Solaris has a default of 256 max files per process
45#ifdef ZMQ_HAVE_SOLARIS
46#define MAX_SOCKETS 200
47#else
48#define MAX_SOCKETS 1000
49#endif
50
51#if defined(ZMQ_HAVE_WINDOWS)
52
53void initialise_network (void)
54{
55 WSADATA info;
56 if (WSAStartup (MAKEWORD (2, 0), &info) != 0)
57 throw std::runtime_error ("Could not start WSA");
58}
59
60#else
61
62void initialise_network (void)
63{
64}
65
66#endif
67
68void test_localhost ()
69{
70 // Check that we have local networking via ZeroMQ
71 void *dealer = test_context_socket (ZMQ_DEALER);
72 if (zmq_bind (dealer, "tcp://127.0.0.1:*") == -1) {
73 TEST_FAIL_MESSAGE (
74 "E: Cannot find 127.0.0.1 -- your system does not have local\n"
75 "E: networking. Please fix this before running libzmq checks.\n");
76 }
77
78 test_context_socket_close (dealer);
79}
80
81void test_max_sockets ()
82{
83 // Check that we can create 1,000 sockets
84 fd_t handle[MAX_SOCKETS];
85 int count;
86 for (count = 0; count < MAX_SOCKETS; count++) {
87 handle[count] = socket (AF_INET, SOCK_STREAM, IPPROTO_TCP);
88 if (handle[count] == -1) {
89 printf ("W: Only able to create %d sockets on this box\n", count);
90 const char msg[] =
91 "I: Tune your system to increase maximum allowed file handles\n"
92#if !defined(ZMQ_HAVE_WINDOWS)
93 "I: Run 'ulimit -n 1200' in bash\n"
94#endif
95 ;
96 TEST_FAIL_MESSAGE (msg);
97 }
98 }
99 // Release the socket handles
100 for (count = 0; count < MAX_SOCKETS; count++) {
101 close (handle[count]);
102 }
103}
104
105// This test case stresses the system to shake out known configuration
106// problems. We're direct system calls when necessary. Some code may
107// need wrapping to be properly portable.
108
109int main (void)
110{
111 initialise_network ();
112
113 UNITY_BEGIN ();
114 RUN_TEST (test_localhost);
115 RUN_TEST (test_max_sockets);
116 return UNITY_END ();
117}
118