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168 lines
4.6 KiB
C
168 lines
4.6 KiB
C
/**HEADER********************************************************************
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*
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* Copyright (c) 2008 Freescale Semiconductor;
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* All Rights Reserved
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*
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* Copyright (c) 2004-2008 Embedded Access Inc.;
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* All Rights Reserved
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*
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* Copyright (c) 1989-2008 ARC International;
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* All Rights Reserved
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*
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***************************************************************************
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*
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* THIS SOFTWARE IS PROVIDED BY FREESCALE "AS IS" AND ANY EXPRESSED OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL FREESCALE OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************
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*
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* $FileName: sosel0.c$
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* $Version : 3.0.4.0$
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* $Date : Jan-13-2009$
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*
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* Comments:
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*
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* This file contains the RTCS select() support functions.
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*
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*END************************************************************************/
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#include <rtcs.h>
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#include "rtcs_prv.h"
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#include "socket.h"
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#include "tcpip.h"
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#include "tcp_prv.h"
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/*FUNCTION*-------------------------------------------------------------
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*
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* Function Name : SOCK_select_activity
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* Returned Value : TRUE or FALSE
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* Comments : Determine whether there is any activity on a socket.
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*
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*END*-----------------------------------------------------------------*/
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boolean SOCK_select_activity
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(
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SOCKET_STRUCT_PTR socket_ptr,
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int flag // direction flag - 0 recv, non zero send
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)
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{ /* Body */
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TCB_STRUCT_PTR tcb_ptr;
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boolean activity = FALSE;
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/* Check closing and connected stream sockets for data */
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if (socket_ptr->TCB_PTR) {
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tcb_ptr = socket_ptr->TCB_PTR;
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if (!flag) {
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/*
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** Check that there is data in the receive ring or
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** that the socket has been closed by the peer
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*/
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if ((tcb_ptr->conn_pending) || (tcb_ptr->state == CLOSED) ||
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/* START CR 2349 */
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//(tcb_ptr->rcvnxt > tcb_ptr->rcvbufseq)) {
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(GT32(tcb_ptr->rcvnxt, tcb_ptr->rcvbufseq))) {
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/* END CR 2349 */
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activity = TRUE;
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}
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}
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else {
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if (!tcb_ptr->sndlen) { // TODO - remake for partialy empty send buffers
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activity = TRUE;
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}
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}
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/* Check datagram sockets for data */
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} else if (socket_ptr->UCB_PTR) {
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/*
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** Check that there is queued data
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*/
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if (socket_ptr->UCB_PTR->PHEAD) {
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activity = TRUE;
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} /* Endif */
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/* TCB=UCB=NULL is a TCP connection reset by peer */
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} else {
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activity = TRUE;
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} /* Endif */
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return activity;
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} /* Endbody */
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/*FUNCTION*-------------------------------------------------------------
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*
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* Function Name : SOCK_select_block
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* Returned Values :
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* Comments :
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* Enqueues a select() call on the select queue.
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*
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*END*-----------------------------------------------------------------*/
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void SOCK_select_block
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(
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SOCKSELECT_PARM_PTR parms
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)
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{ /* Body */
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SOCKET_CONFIG_STRUCT_PTR socket_cfg_ptr = RTCS_getcfg(SOCKET);
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parms->NEXT = socket_cfg_ptr->SELECT_HEAD;
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if (parms->NEXT) {
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parms->NEXT->PREV = &parms->NEXT;
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} /* Endif */
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socket_cfg_ptr->SELECT_HEAD = parms;
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parms->PREV = &socket_cfg_ptr->SELECT_HEAD;
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if (parms->timeout) {
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parms->EXPIRE.TIME = parms->timeout;
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parms->EXPIRE.EVENT = SOCK_select_expire;
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parms->EXPIRE.PRIVATE = parms;
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TCPIP_Event_add(&parms->EXPIRE);
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} /* Endif */
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} /* Endbody */
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/*FUNCTION*-------------------------------------------------------------
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*
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* Function Name : SOCK_select_expire
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* Returned Values :
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* Comments :
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* Called by the Timer. Expire a select call.
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*
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*END*-----------------------------------------------------------------*/
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boolean SOCK_select_expire
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(
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TCPIP_EVENT_PTR event
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)
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{ /* Body */
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SOCKSELECT_PARM_PTR parms = event->PRIVATE;
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if (parms->NEXT) {
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parms->NEXT->PREV = parms->PREV;
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} /* Endif */
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*parms->PREV = parms->NEXT;
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parms->sock = 0;
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RTCSCMD_complete(parms, RTCS_OK);
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return FALSE;
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} /* Endbody */
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/* EOF */
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