diff --git a/extensions/dbg_interactive/posix.i b/extensions/dbg_interactive/posix.i
new file mode 100644
index 0000000..ceafeb6
--- /dev/null
+++ b/extensions/dbg_interactive/posix.i
@@ -0,0 +1,194 @@
+/*********************************************************************************************************
+* Software License Agreement (BSD License)                                                               *
+* Author: Sebastien Decugis <sdecugis@freediameter.net>							 *
+*													 *
+* Copyright (c) 2012, WIDE Project and NICT								 *
+* All rights reserved.											 *
+* 													 *
+* Redistribution and use of this software 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.								 *
+* 													 *
+* * Neither the name of the WIDE Project or NICT nor the 						 *
+*   names of its contributors may be used to endorse or 						 *
+*   promote products derived from this software without 						 *
+*   specific prior written permission of WIDE Project and 						 *
+*   NICT.												 *
+* 													 *
+* 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.								 *
+*********************************************************************************************************/
+
+/* Do not include this directly, use dbg_interactive.i instead */
+
+/****** POSIX wrappers around useful functions for fD *********/
+
+/**** MUTEX ****/
+typedef struct {
+} pthread_mutex_t;
+
+%extend pthread_mutex_t {
+	pthread_mutex_t() {
+		int ret = 0;
+		pthread_mutex_t * r = calloc(1, sizeof(pthread_mutex_t));
+		if (!r) {
+			DI_ERROR_MALLOC;
+			return NULL;
+		}
+		ret = pthread_mutex_init(r, NULL);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+			free(r);
+			return NULL;
+		}
+		return r;
+	}
+	~pthread_mutex_t() {
+		int ret = 0;
+		ret = pthread_mutex_destroy($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+			return;
+		}
+		free($self);
+		return;
+	}
+	void lock() {
+		int ret = pthread_mutex_lock($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+		}
+	}
+	void unlock() {
+		int ret = pthread_mutex_unlock($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+		}
+	}
+}
+
+/**** CONDVAR ****/
+typedef struct {
+} pthread_cond_t;
+
+%extend pthread_cond_t {
+	pthread_cond_t() {
+		int ret = 0;
+		pthread_cond_t * r = calloc(1, sizeof(pthread_cond_t));
+		if (!r) {
+			DI_ERROR_MALLOC;
+			return NULL;
+		}
+		ret = pthread_cond_init(r, NULL);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+			free(r);
+			return NULL;
+		}
+		return r;
+	}
+	~pthread_cond_t() {
+		int ret = 0;
+		ret = pthread_cond_destroy($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+			return;
+		}
+		free($self);
+		return;
+	}
+	void signal() {
+		int ret = pthread_cond_signal($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+		}
+	}
+	void broadcast() {
+		int ret = pthread_cond_broadcast($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+		}
+	}
+	void wait(pthread_mutex_t * mutex) {
+		int ret = pthread_cond_wait($self, mutex);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+		}
+	}
+	void timedwait(pthread_mutex_t * mutex, long seconds) {
+		struct timespec ts;
+		int ret;
+		
+		clock_gettime(CLOCK_REALTIME, &ts);
+		ts.tv_sec += seconds;
+		
+		ret = pthread_cond_timedwait($self, mutex, &ts);
+		if (ret && (ret != ETIMEDOUT)) {
+			DI_ERROR(ret, NULL, NULL);
+		}
+	}
+}
+
+/**** RWLOCK ****/
+typedef struct {
+} pthread_rwlock_t;
+
+%extend pthread_rwlock_t {
+	pthread_rwlock_t() {
+		int ret = 0;
+		pthread_rwlock_t * r = calloc(1, sizeof(pthread_rwlock_t));
+		if (!r) {
+			DI_ERROR_MALLOC;
+			return NULL;
+		}
+		ret = pthread_rwlock_init(r, NULL);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+			free(r);
+			return NULL;
+		}
+		return r;
+	}
+	~pthread_rwlock_t() {
+		int ret = 0;
+		ret = pthread_rwlock_destroy($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+			return;
+		}
+		free($self);
+		return;
+	}
+	void rdlock() {
+		int ret = pthread_rwlock_rdlock($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+		}
+	}
+	void wrlock() {
+		int ret = pthread_rwlock_wrlock($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+		}
+	}
+	void unlock() {
+		int ret = pthread_rwlock_unlock($self);
+		if (ret) {
+			DI_ERROR(ret, NULL, NULL);
+		}
+	}
+}