--- libelwix/inc/elwix/apio.h	2020/06/19 13:06:17	1.5
+++ libelwix/inc/elwix/apio.h	2024/12/05 12:33:49	1.6.40.1
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: apio.h,v 1.5 2020/06/19 13:06:17 misho Exp $
+* $Id: apio.h,v 1.6.40.1 2024/12/05 12:33:49 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -12,7 +12,7 @@ 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 - 2020
+Copyright 2004 - 2024
 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -62,6 +62,9 @@ typedef SLIST_HEAD(, tagPIOPID) pio_pid_t;
 
 extern pio_pid_t pio_pidlist;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 /*
  * e_popen() - ELWIX replacement of standard popen
@@ -69,6 +72,7 @@ extern pio_pid_t pio_pidlist;
  * @command = command
  * @type = type
  * @ppid = return pid of child program
+ * 	If value of *ppid is -1 when invoke routine then child will be session leader
  * return: NULL error or !=NULL open program
  */
 #ifdef POPEN_STREAM
@@ -82,6 +86,7 @@ int e_popen(const char *command, const char *type, pid
  * @command = command
  * @type = type
  * @ppid = return pid of child program
+ * 	If value of *ppid is -1 when invoke routine then child will be session leader
  * @fds = file descriptor array for close when fork
  * @fdslen = fds number of descriptors
  * return: NULL error or !=NULL open program
@@ -123,5 +128,8 @@ struct tagPIOPID *pio_pgetpid(int iop);
  */
 int pio_pchkpid(array_t ** __restrict pids);
 
+#ifdef __cplusplus
+}
+#endif
 
 #endif