--- libelwix/inc/elwix/apio.h	2013/12/05 14:41:31	1.1.2.1
+++ libelwix/inc/elwix/apio.h	2014/01/29 14:15:58	1.2.2.1
@@ -1,6 +1,112 @@
+/*************************************************************************
+* (C) 2013 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
+*  by Michael Pounov <misho@elwix.org>
+*
+* $Author: misho $
+* $Id: apio.h,v 1.2.2.1 2014/01/29 14:15:58 misho Exp $
+*
+**************************************************************************
+The ELWIX and AITNET software is distributed under the following
+terms:
+
+All of the documentation and software included in the ELWIX and AITNET
+Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
+
+Copyright 2004 - 2014
+	by Michael Pounov <misho@elwix.org>.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. 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.
+3. All advertising materials mentioning features or use of this software
+   must display the following acknowledgement:
+This product includes software developed by Michael Pounov <misho@elwix.org>
+ELWIX - Embedded LightWeight unIX and its contributors.
+4. Neither the name of AITNET nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY AITNET 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 REGENTS 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.
+*/
 #ifndef __APIO_H
 #define __APIO_H
 
+
+struct tagPIOPID {
+	union {
+		FILE		*fp;
+		int		fd;
+	} f;
+	pid_t			pid;
+	int			stat;
+
+	SLIST_ENTRY(tagPIOPID)	next;
+};
+typedef SLIST_HEAD(, tagPIOPID) pio_pid_t;
+
+
+extern pio_pid_t pio_pidlist;
+
+
+/*
+ * e_popen() - ELWIX replacement of standard popen
+ *
+ * @command = command
+ * @type = type
+ * @ppid = return pid of child program
+ * return: NULL error or !=NULL open program
+ */
+#ifdef POPEN_STREAM
+FILE *e_popen(const char *command, const char *type, pid_t *ppid);
+#else
+int e_popen(const char *command, const char *type, pid_t *ppid);
+#endif
+/*
+ * e_pclose() - ELWIX replacement of standard pclose
+ *
+ * @iop = popen handle
+ * return: -1 error or !=-1 pid status
+ */
+#ifdef POPEN_STREAM
+int e_pclose(FILE *iop);
+#else
+int e_pclose(int iop);
+#endif
+
+/*
+ * pio_pgetpid() - Get tagPIOPID structure from file handle
+ *
+ * @iop = popen handle
+ * return: NULL error or !=NULL tagPIOPID structure
+ */
+#ifdef POPEN_STREAM
+struct tagPIOPID *pio_pgetpid(FILE *iop);
+#else
+struct tagPIOPID *pio_pgetpid(int iop);
+#endif
+/*
+ * pio_pchkpid() - Check exit status of child programs
+ *
+ * @pids = return tagPIOPID structures of exited programs, 
+ * 		if !=NULL must call array_Destroy()
+ * return: -1 error or >-1 exited programs
+ */
+int pio_pchkpid(array_t ** __restrict pids);
 
 
 #endif