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Diffstat (limited to 'nuttx/net/uip/uip_tcpreadahead.c')
-rw-r--r--nuttx/net/uip/uip_tcpreadahead.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/nuttx/net/uip/uip_tcpreadahead.c b/nuttx/net/uip/uip_tcpreadahead.c
deleted file mode 100644
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--- a/nuttx/net/uip/uip_tcpreadahead.c
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-/****************************************************************************
- * net/uip/uip_tcpreadahead.c
- *
- * Copyright (C) 2007-2009 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/net/uip/uipopt.h>
-#if defined(CONFIG_NET) && defined(CONFIG_NET_TCP) && (CONFIG_NET_NTCP_READAHEAD_BUFFERS > 0)
-
-#include <queue.h>
-#include <debug.h>
-
-#include <nuttx/net/uip/uip.h>
-
-#include "uip_internal.h"
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/* These are the pre-allocated read-ahead buffers */
-
-static struct uip_readahead_s g_buffers[CONFIG_NET_NTCP_READAHEAD_BUFFERS];
-
-/* This is the list of available read-ahead buffers */
-
-static sq_queue_t g_freebuffers;
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Function: uip_tcpreadaheadinit
- *
- * Description:
- * Initialize the list of free read-ahead buffers
- *
- * Assumptions:
- * Called once early initialization.
- *
- ****************************************************************************/
-
-void uip_tcpreadaheadinit(void)
-{
- int i;
-
- sq_init(&g_freebuffers);
- for (i = 0; i < CONFIG_NET_NTCP_READAHEAD_BUFFERS; i++)
- {
- sq_addfirst(&g_buffers[i].rh_node, &g_freebuffers);
- }
-}
-
-/****************************************************************************
- * Function: uip_tcpreadaheadalloc
- *
- * Description:
- * Allocate a TCP read-ahead buffer by taking a pre-allocated buffer from
- * the free list. This function is called from TCP logic when new,
- * incoming TCP data is received but there is no user logic recving the
- * the data. Note: malloc() cannot be used because this function is
- * called from interrupt level.
- *
- * Assumptions:
- * Called from interrupt level with interrupts disabled.
- *
- ****************************************************************************/
-
-struct uip_readahead_s *uip_tcpreadaheadalloc(void)
-{
- return (struct uip_readahead_s*)sq_remfirst(&g_freebuffers);
-}
-
-/****************************************************************************
- * Function: uip_tcpreadaheadrelease
- *
- * Description:
- * Release a TCP read-ahead buffer by returning the buffer to the free list.
- * This function is called from user logic after it is consumed the buffered
- * data.
- *
- * Assumptions:
- * Called from user logic BUT with interrupts disabled.
- *
- ****************************************************************************/
-
-void uip_tcpreadaheadrelease(struct uip_readahead_s *buf)
-{
- sq_addfirst(&buf->rh_node, &g_freebuffers);
-}
-
-#endif /* CONFIG_NET && CONFIG_NET_TCP && CONFIG_NET_NTCP_READAHEAD_BUFFERS*/