X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libtest%2Fport.cc;h=9f9a5bfeede83d9053a1504b2f44cc70bc5e1ab5;hb=1be0350e7ae7a566896a9fe52863dcc22433fc8a;hp=9bd7717f469675c031c2a58c086cf7d65b73b9ee;hpb=f0ec3e2ffaf483bbd1329e8c6aba37f729e6df4f;p=m6w6%2Flibmemcached

diff --git a/libtest/port.cc b/libtest/port.cc
index 9bd7717f..9f9a5bfe 100644
--- a/libtest/port.cc
+++ b/libtest/port.cc
@@ -1,41 +1,57 @@
 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
- * 
- *  libtest
  *
- *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
+ *  Data Differential YATL (i.e. libtest)  library
  *
- *  This library 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.
+ *  Copyright (C) 2012 Data Differential, http://datadifferential.com/
  *
- *  This library 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.
+ *  Redistribution and use in source and binary forms, with or without
+ *  modification, are permitted provided that the following conditions are
+ *  met:
+ *
+ *      * Redistributions of source code must retain the above copyright
+ *  notice, this list of conditions and the following disclaimer.
+ *
+ *      * Redistributions in binary form must reproduce the above
+ *  copyright notice, this list of conditions and the following disclaimer
+ *  in the documentation and/or other materials provided with the
+ *  distribution.
+ *
+ *      * The names of its contributors may not be used to endorse or
+ *  promote products derived from this software without specific prior
+ *  written permission.
+ *
+ *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- *  You should have received a copy of the GNU Lesser General Public
- *  License along with this library; if not, write to the Free Software
- *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#include <config.h>
 #include <libtest/common.h>
 
 #include <cassert>
 #include <cstdlib>
 #include <cstring>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <unistd.h>
 #include <ctime>
 #include <fnmatch.h>
 #include <iostream>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h> 
+#include <sys/wait.h>
+#include <unistd.h>
 
 #include <signal.h>
 
-#include <libtest/stats.h>
 #include <libtest/signal.h>
 
 #ifndef __INTEL_COMPILER
@@ -44,30 +60,81 @@
 
 using namespace libtest;
 
+struct socket_st {
+  std::vector<int> fd;
+
+  ~socket_st()
+  {
+    for(std::vector<int>::iterator iter= fd.begin(); iter != fd.end(); iter++)
+    {
+      close(*iter);
+    }
+  }
+};
+
+static socket_st all_socket_fd;
+
 static in_port_t global_port= 0;
-static in_port_t global_max_port= 0;
+
+namespace libtest {
 
 in_port_t default_port()
 {
+  if (global_port == 0)
+  {
+    global_port= get_free_port();
+  }
+
   return global_port;
 }
- 
-void set_default_port(in_port_t port)
-{
-  global_port= port;
-}
 
-in_port_t max_port()
+in_port_t get_free_port()
 {
-  return global_max_port;
-}
- 
-void set_max_port(in_port_t port)
-{
-  if (port > global_max_port)
+  in_port_t ret_port= in_port_t(0);
+
+  int retries= 1024;
+
+  while (retries--)
   {
-    global_max_port= port;
+    int sd;
+    if ((sd= socket(AF_INET, SOCK_STREAM, 0)) != -1)
+    {
+      int optval= 1;
+      if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval)) != -1)
+      {
+        struct sockaddr_in sin;
+        sin.sin_port= 0;
+        sin.sin_addr.s_addr= 0;
+        sin.sin_addr.s_addr= INADDR_ANY;
+        sin.sin_family= AF_INET;
+
+        if (bind(sd, (struct sockaddr *)&sin,sizeof(struct sockaddr_in) ) != -1)
+        {
+          socklen_t addrlen= sizeof(sin);
+
+          if (getsockname(sd, (struct sockaddr *)&sin, &addrlen) != -1)
+          {
+            ret_port= sin.sin_port;
+          }
+        }
+      }
+
+      all_socket_fd.fd.push_back(sd);
+    }
+
+    if (ret_port > 1024)
+    {
+      break;
+    }
   }
 
-  global_max_port= port;
+  // We handle the case where if we max out retries, we still abort.
+  if (ret_port <= 1024)
+  {
+    fatal_message("No port could be found");
+  }
+
+  return ret_port;
 }
+
+} // namespace libtest