incubator-nuttx/net/usrsock/usrsock_event.c

137 lines
4.2 KiB
C

/****************************************************************************
* net/usrsock/usrsock_event.c
*
* Copyright (C) 2015, 2017 Haltian Ltd. All rights reserved.
* Author: Jussi Kivilinna <jussi.kivilinna@haltian.com>
*
* 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>
#if defined(CONFIG_NET) && defined(CONFIG_NET_USRSOCK)
#include <stdint.h>
#include <string.h>
#include <semaphore.h>
#include <assert.h>
#include <errno.h>
#include <debug.h>
#include <arch/irq.h>
#include <sys/socket.h>
#include <nuttx/net/net.h>
#include <nuttx/net/usrsock.h>
#include "devif/devif.h"
#include "usrsock/usrsock.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Function: usrsock_event
*
* Description:
* Handler for received connection events
*
****************************************************************************/
int usrsock_event(FAR struct usrsock_conn_s *conn, uint16_t events)
{
ninfo("events: %04X\n", events);
if (!events)
{
return OK;
}
net_lock();
/* Generic state updates. */
if (events & USRSOCK_EVENT_REQ_COMPLETE)
{
if (conn->state == USRSOCK_CONN_STATE_CONNECTING)
{
conn->state = USRSOCK_CONN_STATE_READY;
events |= USRSOCK_EVENT_CONNECT_RESP;
if (conn->resp.result == 0)
{
conn->connected = true;
}
}
}
if (events & USRSOCK_EVENT_ABORT)
{
conn->state = USRSOCK_CONN_STATE_ABORTED;
}
if (events & USRSOCK_EVENT_REMOTE_CLOSED)
{
/* After reception of remote close event, clear input/output flags. */
conn->flags &= ~(USRSOCK_EVENT_SENDTO_READY |
USRSOCK_EVENT_RECVFROM_AVAIL);
conn->flags |= USRSOCK_EVENT_REMOTE_CLOSED;
}
if ((conn->state == USRSOCK_CONN_STATE_READY ||
conn->state == USRSOCK_CONN_STATE_CONNECTING) &&
!(conn->flags & USRSOCK_EVENT_REMOTE_CLOSED))
{
if (events & USRSOCK_EVENT_SENDTO_READY)
{
conn->flags |= USRSOCK_EVENT_SENDTO_READY;
}
if (events & USRSOCK_EVENT_RECVFROM_AVAIL)
{
conn->flags |= USRSOCK_EVENT_RECVFROM_AVAIL;
}
}
/* Send events to callbacks */
(void)devif_conn_event(NULL, conn, events, conn->list);
net_unlock();
return OK;
}
#endif /* CONFIG_NET && CONFIG_NET_USRSOCK */