diff options
Diffstat (limited to 'nuttx/net/net_monitor.c')
| -rw-r--r-- | nuttx/net/net_monitor.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/nuttx/net/net_monitor.c b/nuttx/net/net_monitor.c deleted file mode 100644 index 1eeb4bd27..000000000 --- a/nuttx/net/net_monitor.c +++ /dev/null @@ -1,216 +0,0 @@ -/**************************************************************************** - * net/net_monitor.c - * - * Copyright (C) 2007-2013 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> -#if defined(CONFIG_NET) && defined(CONFIG_NET_TCP) - -#include <stdint.h> -#include <assert.h> -#include <debug.h> - -#include "net_internal.h" -#include "uip/uip_internal.h" - -/**************************************************************************** - * Private Types - ****************************************************************************/ - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ - -static void connection_event(struct uip_conn *conn, uint16_t flags); - -/**************************************************************************** - * Private Functions - ****************************************************************************/ -/**************************************************************************** - * Name: connection_event - * - * Description: - * Some connection related event has occurred - * - * Parameters: - * conn The connection structure associated with the socket - * flags Set of events describing why the callback was invoked - * - * Returned Value: - * None - * - * Assumptions: - * Running at the interrupt level - * - ****************************************************************************/ - -static void connection_event(FAR struct uip_conn *conn, uint16_t flags) -{ - FAR struct socket *psock = (FAR struct socket *)conn->connection_private; - - if (psock) - { - nllvdbg("flags: %04x s_flags: %02x\n", flags, psock->s_flags); - - /* UIP_CLOSE, UIP_ABORT, or UIP_TIMEDOUT: Loss-of-connection events */ - - if ((flags & (UIP_CLOSE|UIP_ABORT|UIP_TIMEDOUT)) != 0) - { - net_lostconnection(psock, flags); - } - - /* UIP_CONNECTED: The socket is successfully connected */ - - else if ((flags & UIP_CONNECTED) != 0) - { - /* Indicate that the socket is now connected */ - - psock->s_flags |= _SF_CONNECTED; - psock->s_flags &= ~_SF_CLOSED; - } - } -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ -/**************************************************************************** - * Name: net_startmonitor - * - * Description: - * Set up to receive TCP connection state changes for a given socket - * - * Input Parameters: - * psock - The socket of interest - * - * Returned Value: - * For now, this function always returns OK. - * - ****************************************************************************/ - -int net_startmonitor(FAR struct socket *psock) -{ - FAR struct uip_conn *conn = psock->s_conn; - - DEBUGASSERT(psock && conn); - - /* Set up to receive callbacks on connection-related events */ - - conn->connection_private = (void*)psock; - conn->connection_event = connection_event; - return OK; -} - -/**************************************************************************** - * Name: net_stopmonitor - * - * Description: - * Stop monitoring TCP connection changes for a given socket - * - * Input Parameters: - * conn - The TCP connection of interest - * - * Returned Value: - * None - * - ****************************************************************************/ - -void net_stopmonitor(FAR struct uip_conn *conn) -{ - DEBUGASSERT(conn); - - conn->connection_private = NULL; - conn->connection_event = NULL; -} - -/**************************************************************************** - * Name: net_lostconnection - * - * Description: - * Called when a loss-of-connection event has occurred. - * - * Parameters: - * psock The TCP socket structure associated. - * flags Set of connection events events - * - * Returned Value: - * None - * - * Assumptions: - * Running at the interrupt level - * - ****************************************************************************/ - -void net_lostconnection(FAR struct socket *psock, uint16_t flags) -{ - DEBUGASSERT(psock) - - /* These loss-of-connection events may be reported: - * - * UIP_CLOSE: The remote host has closed the connection - * UIP_ABORT: The remote host has aborted the connection - * UIP_TIMEDOUT: Connection aborted due to too many retransmissions. - * - * And we need to set these two socket status bits appropriately: - * - * _SF_CONNECTED==1 && _SF_CLOSED==0 - the socket is connected - * _SF_CONNECTED==0 && _SF_CLOSED==1 - the socket was gracefully disconnected - * _SF_CONNECTED==0 && _SF_CLOSED==0 - the socket was rudely disconnected - */ - - if ((flags & UIP_CLOSE) != 0) - { - /* The peer gracefully closed the connection. Marking the - * connection as disconnected will suppress some subsequent - * ENOTCONN errors from receive. A graceful disconnection is - * not handle as an error but as an "end-of-file" - */ - - psock->s_flags &= ~_SF_CONNECTED; - psock->s_flags |= _SF_CLOSED; - } - else if ((flags & (UIP_ABORT|UIP_TIMEDOUT)) != 0) - { - /* The loss of connection was less than graceful. This will (eventually) - * be reported as an ENOTCONN error. - */ - - psock->s_flags &= ~(_SF_CONNECTED |_SF_CLOSED); - } -} - -#endif /* CONFIG_NET && CONFIG_NET_TCP */ |