From 46f96ed5e3127394a0cd4dcb961404b792f743b4 Mon Sep 17 00:00:00 2001
From: Jakub Slawinski
Date: Thu, 10 Jul 2014 10:24:59 +0200
Subject: Initial project structure based on Active Port Forwarder 0.8.4.

---
 src/thread_management.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)
 create mode 100644 src/thread_management.c

(limited to 'src/thread_management.c')

diff --git a/src/thread_management.c b/src/thread_management.c
new file mode 100644
index 0000000..d423ca6
--- /dev/null
+++ b/src/thread_management.c
@@ -0,0 +1,102 @@
+/*
+ * active port forwarder - software for secure forwarding
+ * Copyright (C) 2003-2007 jeremian <jeremian [at] poczta.fm>
+ *
+ * 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.
+ *
+ */
+
+#include <config.h>
+
+#include "thread_management.h"
+
+#ifdef HAVE_LIBPTHREAD
+
+static pthread_t mainthread;
+static pthread_mutex_t mainmutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t maincond = PTHREAD_COND_INITIALIZER;
+
+/*
+ * Function name: remember_mainthread
+ * Description: Remembers the current thread as a main thread.
+ */
+
+void
+remember_mainthread(void)
+{
+  mainthread = pthread_self();
+}
+
+/*
+ * Function name: is_this_a_mainthread
+ * Description: Checks, if the current thread is a main thread.
+ * Returns: 0 - this is not a main thread,
+ *          1 - this is a main thread.
+ */
+
+int
+is_this_a_mainthread(void)
+{
+  if (pthread_self() == mainthread) {
+    return 1;
+  }
+  return 0;
+}
+
+/*
+ * Function name: start_critical_section
+ * Description: Starts the critical section of the code by locking the mutex.
+ */
+
+void
+start_critical_section(void)
+{
+  pthread_mutex_lock( &mainmutex);
+}
+
+/*
+ * Function name: end_critical_section
+ * Description: Ends the critical section of the code by unlocking the mutex.
+ */
+
+void
+end_critical_section(void)
+{
+  pthread_mutex_unlock( &mainmutex);
+}
+
+/*
+ * Function name: wait_for_condition
+ * Description: Starts waiting for the condition.
+ */
+
+void
+wait_for_condition(void)
+{
+  pthread_cond_wait(&maincond, &mainmutex);
+}
+
+/*
+ * Function name: broadcast_condition
+ * Description: Broadcast the met of the condition.
+ */
+
+void
+broadcast_condition(void)
+{
+  pthread_cond_broadcast(&maincond);
+}
+
+#endif
-- 
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