test_system.cpp 3.28 KB
Newer Older
1
/*
2
    Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
3

4
    This file is part of libzmq, the ZeroMQ core engine in C++.
5

6 7 8
    libzmq is free software; you can redistribute it and/or modify it under
    the terms of the GNU Lesser General Public License (LGPL) as published
    by the Free Software Foundation; either version 3 of the License, or
9 10
    (at your option) any later version.

11 12 13 14 15 16 17 18 19 20 21 22 23 24
    As a special exception, the Contributors give you permission to link
    this library with independent modules to produce an executable,
    regardless of the license terms of these independent modules, and to
    copy and distribute the resulting executable under terms of your choice,
    provided that you also meet, for each linked independent module, the
    terms and conditions of the license of that module. An independent
    module is a module which is not derived from or based on this library.
    If you modify this library, you must extend this exception to your
    version of the library.

    libzmq 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.
25 26 27 28 29

    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/>.
*/

30 31
#include "testutil.hpp"

Richard Newton's avatar
Richard Newton committed
32
#if defined (ZMQ_HAVE_WINDOWS)
33
#   include <winsock2.h>
34
#   include <stdexcept>
Richard Newton's avatar
Richard Newton committed
35
#else
36 37 38
#   include <sys/socket.h>
#   include <netinet/in.h>
#   include <unistd.h>
Richard Newton's avatar
Richard Newton committed
39 40 41 42
#endif

#if defined (ZMQ_HAVE_WINDOWS)

43
void initialise_network (void)
Richard Newton's avatar
Richard Newton committed
44 45 46 47 48 49
{
    WSADATA info;
    if (WSAStartup(MAKEWORD(2,0), &info) != 0)
        throw std::runtime_error("Could not start WSA");
}

50
int close (int fd)
Richard Newton's avatar
Richard Newton committed
51
{
52
    return closesocket (fd);
Richard Newton's avatar
Richard Newton committed
53 54 55 56
}

#else

57
void initialise_network (void)
Richard Newton's avatar
Richard Newton committed
58 59 60 61
{
}

#endif
62 63

//  This test case stresses the system to shake out known configuration
64 65
//  problems. We're direct system calls when necessary. Some code may
//  need wrapping to be properly portable.
66 67 68

int main (void)
{
69
    initialise_network ();
Richard Newton's avatar
Richard Newton committed
70

71 72 73 74 75 76 77 78 79
    //  Check that we have local networking via ZeroMQ
    void *ctx = zmq_ctx_new ();
    assert (ctx);
    void *dealer = zmq_socket (ctx, ZMQ_DEALER);
    if (zmq_bind (dealer, "tcp://127.0.0.1:5670") == -1) {
        printf ("E: Cannot find 127.0.0.1 -- your system does not have local\n");
        printf ("E: networking. Please fix this before running libzmq checks.\n");
        return -1;
    }
80 81 82 83 84 85 86 87 88 89
    //  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");
Matt Connolly's avatar
Matt Connolly committed
90
#elif defined (ZMQ_HAVE_LINUX)
91 92 93 94 95 96
            printf ("I: On Linux, run 'ulimit -n 1200' in bash");
#endif        
            return -1;
        }
    }
    //  Release the socket handles
97 98 99
    for (count = 0; count < 1000; count++) {
        close(handle[count]);
    }
100 101 102

    zmq_close(dealer);
    zmq_ctx_term(ctx);
103
}