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diff --git a/libraries/luaproc/sched.h b/libraries/luaproc/sched.h
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+/***************************************************
+
+Copyright 2008 Alexandre Skyrme, Noemi Rodriguez, Roberto Ierusalimschy
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+*****************************************************
+
+[sched.h]
+
+****************************************************/
+#ifndef _SCHED_H_
+#define _SCHED_H_
+
+#include "luaproc.h"
+
+/* scheduler function return constants */
+#define LUAPROC_SCHED_OK                                                0
+#define LUAPROC_SCHED_SOCKET_ERROR                              -1
+#define LUAPROC_SCHED_SETSOCKOPT_ERROR                  -2
+#define LUAPROC_SCHED_BIND_ERROR                                -3
+#define LUAPROC_SCHED_LISTEN_ERROR                              -4
+#define LUAPROC_SCHED_FORK_ERROR                                -5
+#define LUAPROC_SCHED_PTHREAD_ERROR                             -6
+#define LUAPROC_SCHED_INIT_ERROR                                -7
+
+/* ready process queue insertion status */
+#define LUAPROC_SCHED_QUEUE_PROC_OK             0
+#define LUAPROC_SCHED_QUEUE_PROC_ERR    -1
+
+/* scheduler listener service default hostname and port */
+#define LUAPROC_SCHED_DEFAULT_HOST "127.0.0.1"
+#define LUAPROC_SCHED_DEFAULT_PORT 3133
+
+/* scheduler default number of worker threads */
+#define LUAPROC_SCHED_DEFAULT_WORKER_THREADS    1
+
+/* initialize local scheduler */
+int sched_init_local( int numworkers ); 
+
+/* initialize socket enabled scheduler */
+int sched_init_socket( int numworkers, const char *host, int port ); 
+
+/* exit scheduler */
+void sched_exit( void );
+
+/* move process to ready queue (ie, schedule process) */
+int sched_queue_proc( luaproc lp );
+
+/* join all worker threads and exit */
+void sched_join_workerthreads( void ); 
+
+/* increase active luaproc count */
+void sched_lpcount_inc( void );
+
+/* decrease active luaproc count */
+void sched_lpcount_dec( void );
+
+/* create a new worker pthread */
+int sched_create_worker( void );
+
+#endif