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incubator-nuttx/net/udp/udp_wrbuffer_dump.c

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This commit adds an as-of-yet untested implemented of UDP write buffering. Squashed commit of the following: net/udp: Address most of the issues with UDP write buffering. There is a remaining issue with handling one network going down in a multi-network environment. None of this has been test but it is certainly ready for test. Hence, the feature is marked EXPERIMENTAL. net/udp: Some baby steps toward a corrected write buffering design. net/udp: Remove pesky write buffer macros. Eliminate trailing space at the end of lines. net/udp: A little more UDP write buffering logic. Still at least on big gaping hole in the design. net/udp: Undefined CONFIG_NET_SENDTO_TIMEOUT. net/udp: Crude, naive port of the TCP write buffering logic into UDP. This commit is certainly non-functional and is simply a starting point for the implementatin of UDP write buffering. net/udp: Rename udp/udp_psock_sendto.c udp/udp_psock_sendto_unbuffered.c.
2018-01-23 08:32:02 +08:00
/****************************************************************************
* net/udp/udp_wrbuffer_dump.c
*
* Copyright (C) 2018 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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. Neither the name NuttX 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 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <debug.h>
#include <nuttx/mm/iob.h>
#include "udp/udp.h"
#ifdef CONFIG_DEBUG_FEATURES
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: udp_wrbuffer_dump
*
* Description:
* Dump the contents of a write buffer
*
****************************************************************************/
void udp_wrbuffer_dump(FAR const char *msg, FAR struct udp_wrbuffer_s *wrb,
unsigned int len, unsigned int offset)
{
tools/nxstyle.c: Fix logic error that prevent detecion of '/' and '/=' as operators. net/: Minor updates resulting from testing tools/nxstyle.
2019-03-12 02:48:17 +08:00
syslog(LOG_DEBUG, "%s: wrb=%p pktlen=%d\n",
msg, wrb, wrb->wb_iob->io_pktlen);
This commit adds an as-of-yet untested implemented of UDP write buffering. Squashed commit of the following: net/udp: Address most of the issues with UDP write buffering. There is a remaining issue with handling one network going down in a multi-network environment. None of this has been test but it is certainly ready for test. Hence, the feature is marked EXPERIMENTAL. net/udp: Some baby steps toward a corrected write buffering design. net/udp: Remove pesky write buffer macros. Eliminate trailing space at the end of lines. net/udp: A little more UDP write buffering logic. Still at least on big gaping hole in the design. net/udp: Undefined CONFIG_NET_SENDTO_TIMEOUT. net/udp: Crude, naive port of the TCP write buffering logic into UDP. This commit is certainly non-functional and is simply a starting point for the implementatin of UDP write buffering. net/udp: Rename udp/udp_psock_sendto.c udp/udp_psock_sendto_unbuffered.c.
2018-01-23 08:32:02 +08:00
iob_dump("I/O Buffer Chain", wrb->wb_iob, len, offset);
}
#endif /* CONFIG_DEBUG_FEATURES */