e506b2a52c
adjust the close sequence to avoid data discard Signed-off-by: chao.an <anchao@xiaomi.com>
135 lines
4.1 KiB
C
135 lines
4.1 KiB
C
/****************************************************************************
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* net/usrsock/usrsock_event.c
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*
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* Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
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* Author: Jussi Kivilinna <jussi.kivilinna@haltian.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#if defined(CONFIG_NET) && defined(CONFIG_NET_USRSOCK)
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#include <stdint.h>
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <arch/irq.h>
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#include <sys/socket.h>
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#include <nuttx/net/net.h>
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#include <nuttx/net/usrsock.h>
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#include "devif/devif.h"
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#include "usrsock/usrsock.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: usrsock_event
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*
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* Description:
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* Handler for received connection events
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*
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****************************************************************************/
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int usrsock_event(FAR struct usrsock_conn_s *conn, uint16_t events)
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{
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ninfo("events: %04X\n", events);
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if (!events)
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{
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return OK;
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}
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net_lock();
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/* Generic state updates. */
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if (events & USRSOCK_EVENT_REQ_COMPLETE)
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{
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if (conn->state == USRSOCK_CONN_STATE_CONNECTING)
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{
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conn->state = USRSOCK_CONN_STATE_READY;
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events |= USRSOCK_EVENT_CONNECT_READY;
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if (conn->resp.result == 0)
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{
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conn->connected = true;
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}
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}
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}
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if (events & USRSOCK_EVENT_ABORT)
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{
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conn->state = USRSOCK_CONN_STATE_ABORTED;
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}
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if ((conn->state == USRSOCK_CONN_STATE_READY ||
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conn->state == USRSOCK_CONN_STATE_CONNECTING) &&
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!(conn->flags & USRSOCK_EVENT_REMOTE_CLOSED))
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{
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if (events & USRSOCK_EVENT_SENDTO_READY)
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{
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conn->flags |= USRSOCK_EVENT_SENDTO_READY;
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}
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if (events & USRSOCK_EVENT_RECVFROM_AVAIL)
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{
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conn->flags |= USRSOCK_EVENT_RECVFROM_AVAIL;
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}
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}
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if (events & USRSOCK_EVENT_REMOTE_CLOSED)
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{
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/* After reception of remote close event, clear input flags. */
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conn->flags &= ~USRSOCK_EVENT_SENDTO_READY;
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conn->flags |= USRSOCK_EVENT_REMOTE_CLOSED;
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}
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/* Send events to callbacks */
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devif_conn_event(NULL, conn, events, conn->list);
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net_unlock();
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return OK;
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}
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#endif /* CONFIG_NET && CONFIG_NET_USRSOCK */
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