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Diffstat (limited to 'nuttx/net/uip/uip_igmppoll.c')
| -rw-r--r-- | nuttx/net/uip/uip_igmppoll.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/nuttx/net/uip/uip_igmppoll.c b/nuttx/net/uip/uip_igmppoll.c deleted file mode 100644 index e86eb687b..000000000 --- a/nuttx/net/uip/uip_igmppoll.c +++ /dev/null @@ -1,176 +0,0 @@ -/**************************************************************************** - * net/uip/uip_igmppoll.c - * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * The NuttX implementation of IGMP was inspired by the IGMP add-on for the - * lwIP TCP/IP stack by Steve Reynolds: - * - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * 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 of CITEL Technologies Ltd 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 CITEL TECHNOLOGIES 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 CITEL TECHNOLOGIES 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> - -#include <assert.h> -#include <debug.h> - -#include <nuttx/net/uip/uipopt.h> -#include <nuttx/net/uip/uip.h> -#include <nuttx/net/uip/uip-arch.h> - -#include "uip_internal.h" - -#ifdef CONFIG_NET_IGMP - -/**************************************************************************** - * Pre-processor Definitions - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_schedsend - * - * Description: - * Construct the . - * - * Returned Value: - * Returns a non-zero value if a IGP message is sent. - * - * Assumptions: - * This function is called from the driver polling logic... probably within - * an interrupt handler. - * - ****************************************************************************/ - -static inline void uip_schedsend(FAR struct uip_driver_s *dev, FAR struct igmp_group_s *group) -{ - uip_ipaddr_t *dest; - - /* Check what kind of messsage we need to send. There are only two - * possibilities: - */ - - if (group->msgid == IGMPv2_MEMBERSHIP_REPORT) - { - dest = &group->grpaddr; - nllvdbg("Send IGMPv2_MEMBERSHIP_REPORT, dest=%08x flags=%02x\n", - *dest, group->flags); - IGMP_STATINCR(uip_stat.igmp.report_sched); - SET_LASTREPORT(group->flags); /* Remember we were the last to report */ - } - else - { - DEBUGASSERT(group->msgid == IGMP_LEAVE_GROUP); - dest = &g_allrouters; - nllvdbg("Send IGMP_LEAVE_GROUP, dest=%08x flags=%02x\n", - *dest, group->flags); - IGMP_STATINCR(uip_stat.igmp.leave_sched); - } - - /* Send the message */ - - uip_igmpsend(dev, group, dest); - - /* Indicate that the message has been sent */ - - CLR_SCHEDMSG(group->flags); - group->msgid = 0; - - /* If there is a thread waiting fore the message to be sent, wake it up */ - - if (IS_WAITMSG(group->flags)) - { - nllvdbg("Awakening waiter\n"); - sem_post(&group->sem); - } -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: uip_igmppoll - * - * Description: - * Poll the groups associated with the device to see if any IGMP messages - * are pending transfer. - * - * Returned Value: - * Returns a non-zero value if a IGP message is sent. - * - * Assumptions: - * This function is called from the driver polling logic... probably within - * an interrupt handler. - * - ****************************************************************************/ - -void uip_igmppoll(FAR struct uip_driver_s *dev) -{ - FAR struct igmp_group_s *group; - - nllvdbg("Entry\n"); - - /* Setup the poll operation */ - - dev->d_appdata = &dev->d_buf[UIP_LLH_LEN + UIP_IPIGMPH_LEN]; - dev->d_snddata = &dev->d_buf[UIP_LLH_LEN + UIP_IPIGMPH_LEN]; - - dev->d_len = 0; - dev->d_sndlen = 0; - - /* Check each member of the group */ - - for (group = (FAR struct igmp_group_s *)dev->grplist.head; group; group = group->next) - { - /* Does this member have a pending outgoing message? */ - - if (IS_SCHEDMSG(group->flags)) - { - /* Yes, create the IGMP message in the driver buffer */ - - uip_schedsend(dev, group); - - /* Mark the message as sent and break out */ - - CLR_SCHEDMSG(group->flags); - break; - } - } -} -#endif /* CONFIG_NET_IGMP */ |