Fix network port collisions on concurrent unit-tests

[senf.git] / senf / Socket / Protocols / INet / net.test.hh

diff --git a/senf/Socket/Protocols/INet/net.test.hh b/senf/Socket/Protocols/INet/net.test.hh
new file mode 100644 (file)
index 0000000..bf398da
--- /dev/null
+++ b/senf/Socket/Protocols/INet/net.test.hh
@@ -0,0 +1,117 @@
+// $Id$
+//
+// Copyright (C) 2009 
+// Fraunhofer Institute for Open Communication Systems (FOKUS)
+// Competence Center NETwork research (NET), St. Augustin, GERMANY
+//     Stefan Bund <g0dil@berlios.de>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the
+// Free Software Foundation, Inc.,
+// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+/** \file
+    \brief net.test public header */
+
+#ifndef HH_SENF_senf_Socket_Protocols_INet_net_test_
+#define HH_SENF_senf_Socket_Protocols_INet_net_test_ 1
+
+// Custom includes
+#include <boost/format.hpp>
+#include <boost/test/test_tools.hpp>
+
+//#include "net.test.mpp"
+///////////////////////////////hh.p////////////////////////////////////////
+
+namespace {
+
+    void error(char const * fn, char const * proc="")
+    {
+        std::cerr << "\n" << proc << ((*proc)?": ":"") << fn << ": " << strerror(errno) << std::endl;
+    }
+
+    void fail(char const * proc, char const * fn)
+    {
+        error(fn,proc);
+        _exit(1);
+    }
+
+    int base_pid = 0;
+    int server_pid = 0;
+
+    void start(void (*fn)())
+    {
+        if (! base_pid)
+            base_pid = ::getpid();
+        server_pid = ::fork();
+        if (server_pid < 0) BOOST_FAIL("fork()");
+        if (server_pid == 0) {
+            signal(SIGCHLD, SIG_IGN);
+            (*fn)();
+            _exit(0);
+        }
+        signal(SIGCHLD, SIG_DFL);
+    }
+
+    void wait()
+    {
+        int status;
+        if (waitpid(server_pid,&status,0)<0)
+            BOOST_FAIL("waitpid()");
+        BOOST_CHECK_EQUAL( status , 0 );
+    }
+
+    void stop()
+    {
+        if (server_pid) {
+            kill(server_pid,9);
+            wait();
+            server_pid = 0;
+        }
+    }
+
+    unsigned port(unsigned i)
+    {
+        if (! base_pid)
+            base_pid = ::getpid();
+        return 23456u + (((base_pid^(base_pid>>8)^(base_pid>>16)^(base_pid>>24))&0xff)<<2) + i;
+    }
+
+    std::string localhost4str(unsigned i)
+    {
+        return (boost::format("localhost:%d") % port(i)).str();
+    }
+
+    std::string localhost6str(unsigned i)
+    {
+        return (boost::format("[::1]:%d") % port(i)).str();
+    }
+
+}
+
+///////////////////////////////hh.e////////////////////////////////////////
+//#include "net.test.cci"
+//#include "net.test.ct"
+//#include "net.test.cti"
+#endif
+
+\f
+// Local Variables:
+// mode: c++
+// fill-column: 100
+// comment-column: 40
+// c-file-style: "senf"
+// indent-tabs-mode: nil
+// ispell-local-dictionary: "american"
+// compile-command: "scons -u test"
+// End: