diff options
Diffstat (limited to 'nuttx/net/net_sockets.c')
| -rw-r--r-- | nuttx/net/net_sockets.c | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/nuttx/net/net_sockets.c b/nuttx/net/net_sockets.c deleted file mode 100644 index ddb54c98c..000000000 --- a/nuttx/net/net_sockets.c +++ /dev/null @@ -1,251 +0,0 @@ -/**************************************************************************** - * net/net_sockets.c - * - * Copyright (C) 2007-2009, 2011-2012 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> -#ifdef CONFIG_NET - -#include <string.h> -#include <semaphore.h> -#include <assert.h> -#include <sched.h> -#include <errno.h> -#include <debug.h> - -#include <nuttx/net/uip/uip.h> -#include <nuttx/net/net.h> -#include <nuttx/kmalloc.h> - -#include "net_internal.h" - -/**************************************************************************** - * Definitions - ****************************************************************************/ - -/**************************************************************************** - * Public Types - ****************************************************************************/ - -/**************************************************************************** - * Private Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Variables - ****************************************************************************/ - -/**************************************************************************** - * Private Functions - ****************************************************************************/ - -#if CONFIG_NSOCKET_DESCRIPTORS > 0 -static void _net_semtake(FAR struct socketlist *list) -{ - /* Take the semaphore (perhaps waiting) */ - - while (uip_lockedwait(&list->sl_sem) != 0) - { - /* The only case that an error should occr here is if - * the wait was awakened by a signal. - */ - - ASSERT(*get_errno_ptr() == EINTR); - } -} - -# define _net_semgive(list) sem_post(&list->sl_sem) -#endif - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/* This is called from the initialization logic to configure the socket layer */ - -void net_initialize(void) -{ - /* Initialize the uIP layer */ - - uip_initialize(); - - /* Initialize the socket layer */ - -#if CONFIG_NSOCKET_DESCRIPTORS > 0 - netdev_seminit(); -#endif - - /* Initialize the periodic ARP timer */ - - arptimer_init(); -} - -#if CONFIG_NSOCKET_DESCRIPTORS > 0 - -/* Initialize a list of sockets for a new task */ - -void net_initlist(FAR struct socketlist *list) -{ - /* Initialize the list access mutex */ - - (void)sem_init(&list->sl_sem, 0, 1); -} - -/* Release release resources held by the socket list */ - -void net_releaselist(FAR struct socketlist *list) -{ - int ndx; - - DEBUGASSERT(list); - - /* Close each open socket in the list. */ - - for (ndx = 0; ndx < CONFIG_NSOCKET_DESCRIPTORS; ndx++) - { - FAR struct socket *psock = &list->sl_sockets[ndx]; - if (psock->s_crefs > 0) - { - (void)psock_close(psock); - } - } - - /* Destroy the semaphore */ - - (void)sem_destroy(&list->sl_sem); -} - -int sockfd_allocate(int minsd) -{ - FAR struct socketlist *list; - int i; - - /* Get the socket list for this task/thread */ - - list = sched_getsockets(); - if (list) - { - /* Search for a socket structure with no references */ - - _net_semtake(list); - for (i = minsd; i < CONFIG_NSOCKET_DESCRIPTORS; i++) - { - /* Are there references on this socket? */ - - if (!list->sl_sockets[i].s_crefs) - { - /* No take the reference and return the index + an offset - * as the socket descriptor. - */ - - memset(&list->sl_sockets[i], 0, sizeof(struct socket)); - list->sl_sockets[i].s_crefs = 1; - _net_semgive(list); - return i + __SOCKFD_OFFSET; - } - } - _net_semgive(list); - } - - return ERROR; -} - -void sock_release(FAR struct socket *psock) -{ -#if CONFIG_DEBUG - if (psock) -#endif - { - /* Take the list semaphore so that there will be no accesses - * to this socket structure. - */ - - FAR struct socketlist *list = sched_getsockets(); - if (list) - { - /* Decrement the count if there the socket will persist - * after this. - */ - - _net_semtake(list); - if (psock && psock->s_crefs > 1) - { - psock->s_crefs--; - } - else - { - /* The socket will not persist... reset it */ - - memset(psock, 0, sizeof(struct socket)); - } - _net_semgive(list); - } - } -} - -void sockfd_release(int sockfd) -{ - /* Get the socket structure for this sockfd */ - - FAR struct socket *psock = sockfd_socket(sockfd); - - /* Get the socket structure for this sockfd */ - - if (psock) - { - sock_release(psock); - } -} - -FAR struct socket *sockfd_socket(int sockfd) -{ - FAR struct socketlist *list; - int ndx = sockfd - __SOCKFD_OFFSET; - - if (ndx >=0 && ndx < CONFIG_NSOCKET_DESCRIPTORS) - { - list = sched_getsockets(); - if (list) - { - return &list->sl_sockets[ndx]; - } - } - return NULL; -} - -#endif /* CONFIG_NSOCKET_DESCRIPTORS */ -#endif /* CONFIG_NET */ |