Update all licenses to BSD.

[m6w6/libmemcached] / libtest / signal.cc

diff --git a/libtest/signal.cc b/libtest/signal.cc
index ed017b2befe10ff6769435c756544a2381a9513a..86c4a43178d8f66ce0498b1ccbd8d518e1cb10c0 100644 (file)
--- a/libtest/signal.cc
+++ b/libtest/signal.cc
@@ -1,25 +1,40 @@
 /*  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 <csignal>
@@ -74,7 +89,7 @@ void SignalThread::post()
 void SignalThread::test()
 {
   assert(magic_memory == MAGIC_MEMORY);
-  if (not getenv("LIBTEST_IN_GDB"))
+  if (bool(getenv("LIBTEST_IN_GDB")) == false)
   {
     assert(sigismember(&set, SIGABRT));
     assert(sigismember(&set, SIGQUIT));
@@ -85,7 +100,7 @@ void SignalThread::test()
 
 SignalThread::~SignalThread()
 {
-  if (not is_shutdown())
+  if (is_shutdown() == false)
   {
     set_shutdown(SHUTDOWN_GRACEFUL);
   }
@@ -98,6 +113,12 @@ SignalThread::~SignalThread()
   }
 #endif
   sem_destroy(&lock);
+
+  int error;
+  if ((error= pthread_sigmask(SIG_UNBLOCK, &set, NULL)) != 0)
+  {
+    Error << "While trying to reset signal mask to original set, pthread_sigmask() died during pthread_sigmask(" << strerror(error) << ")";
+  }
 }
 
 extern "C" {
@@ -130,6 +151,15 @@ static void *sig_thread(void *arg)
         context->set_shutdown(SHUTDOWN_FORCED);
       }
       break;
+    case SIGPIPE:
+      {
+        Error << "Ignoring SIGPIPE";
+      }
+      break;
+
+    case 0:
+      Error << "Inside of gdb";
+      break;
 
     default:
       Error << "Signal handling thread got unexpected signal " <<  strsignal(sig);
@@ -148,16 +178,20 @@ SignalThread::SignalThread() :
 {
   pthread_mutex_init(&shutdown_mutex, NULL);
   sigemptyset(&set);
-  if (not getenv("LIBTEST_IN_GDB"))
+  if (bool(getenv("LIBTEST_IN_GDB")) == false)
   {
     sigaddset(&set, SIGABRT);
     sigaddset(&set, SIGQUIT);
     sigaddset(&set, SIGINT);
   }
+  sigaddset(&set, SIGPIPE);
 
   sigaddset(&set, SIGUSR2);
 
   sem_init(&lock, 0, 0);
+
+  sigemptyset(&original_set);
+  pthread_sigmask(SIG_BLOCK, NULL, &original_set);
 }
 
 
@@ -165,19 +199,15 @@ bool SignalThread::setup()
 {
   set_shutdown(SHUTDOWN_RUNNING);
 
-  sigset_t old_set;
-  sigemptyset(&old_set);
-  pthread_sigmask(SIG_BLOCK, NULL, &old_set);
-
-  if (sigismember(&old_set, SIGQUIT))
+  if (sigismember(&original_set, SIGQUIT))
   {
     Error << strsignal(SIGQUIT) << " has been previously set.";
   }
-  if (sigismember(&old_set, SIGINT))
+  if (sigismember(&original_set, SIGINT))
   {
     Error << strsignal(SIGINT) << " has been previously set.";
   }
-  if (sigismember(&old_set, SIGUSR2))
+  if (sigismember(&original_set, SIGUSR2))
   {
     Error << strsignal(SIGUSR2) << " has been previously set.";
   }