--- libelwix/inc/elwix/aiov.h	2021/03/18 13:57:21	1.1
+++ libelwix/inc/elwix/aiov.h	2021/03/21 01:32:04	1.2
@@ -0,0 +1,161 @@
+/*************************************************************************
+* (C) 2021 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
+*  by Michael Pounov <misho@elwix.org>
+*
+* $Author: misho $
+* $Id: aiov.h,v 1.2 2021/03/21 01:32:04 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 - 2021
+	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 __AIOV_H
+#define __AIOV_H
+
+
+struct tagIOV {
+	size_t		iov_size;
+	struct iovec	*iov_array;
+};
+typedef struct tagIOV iovec_t;
+
+#define iov_Size(x)	(x)->iov_size
+#define iov_Array(x)	(x)->iov_array
+
+/*
+ * iov_Init() - Init new iovec array
+ *
+ * return: =NULL error, !=NULL ready array
+ */
+iovec_t *iov_Init();
+/*
+ * iov_Destroy() - Destroy iovec array
+ *
+ * @iov = iovec array
+ * return: none
+ */
+void iov_Destroy(iovec_t ** __restrict iov);
+/*
+ * iov_Get() - Get data and length from position
+ *
+ * @iov = iovec array
+ * @pos = position
+ * @data = data
+ * @datlen = data length
+ * return: -1 error, 0 ok
+ */
+int iov_Get(iovec_t * __restrict iov, unsigned int pos, void *data, size_t *datlen);
+/*
+ * iov_Insert() - Insert data at position into array
+ *
+ * @iov = iovec array
+ * @pos = position
+ * @data = data
+ * @datlen = data length
+ * return: -1 error, 0 ok
+ */
+int iov_Insert(iovec_t * __restrict iov, unsigned int pos, void *data, size_t datlen);
+/*
+ * iov_Delete() - Delete data at position into array
+ *
+ * @iov = iovec array
+ * @pos = position
+ * @mustfree = data must be free before delete
+ * return: -1 error, 0 ok
+ */
+int iov_Delete(iovec_t * __restrict iov, unsigned int pos, int mustfree);
+/*
+ * iov_Push() - Push data on first free position
+ *
+ * @iov = iovec array
+ * @data = data
+ * @datlen = data length
+ * return: -1 error, !=-1 pushed at position
+ */
+int iov_Push(iovec_t * __restrict iov, void *data, size_t datlen);
+/*
+ * iov_Pop() - Pop data from last used position
+ *
+ * @iov = iovec array
+ * @data = data
+ * @datlen = data length
+ * @mustfree = data must be free before delete
+ * return: -1 error, !=-1 poped from position
+ */
+int iov_Pop(iovec_t * __restrict iov, void *data, size_t *datlen, int mustfree);
+/*
+ * iov_PushPair() - Push pair/named data on first free position
+ *
+ * @iov = iovec array
+ * @name = name of data
+ * @data = data
+ * @datlen = data length
+ * return: -1 error, !=-1 pushed at position
+ */
+int iov_PushPair(iovec_t * __restrict iov, const char *name, void *data, size_t datlen);
+/*
+ * iov_PopPair() - Pop pair/named data from last used position
+ *
+ * @iov = iovec array
+ * @name = name of data
+ * @namlen = name length
+ * @data = data
+ * @datlen = data length
+ * @mustfree = data must be free before delete
+ * return: -1 error, !=-1 poped from position
+ */
+int iov_PopPair(iovec_t * __restrict iov, char *name, size_t *namlen, 
+		void *data, size_t *datlen, int mustfree);
+/*
+ * iov_FreePairs() - Free pairs/named data in iovec array
+ *
+ * @iov = iovec array
+ * @mustfree = data must be free before delete
+ * return: -1 error or 0 ok
+ */
+int iov_FreePairs(iovec_t * __restrict iov, int mustfree);
+
+/*
+ * iov_Debug() - Debug of iovec array
+ *
+ * @iov = iovec array
+ * return: none
+ */
+void iov_Debug(iovec_t * __restrict iov);
+
+
+#endif