144 lines
3.1 KiB
C
144 lines
3.1 KiB
C
/*
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* File : dfs_net.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2015-2016, RT-Thread Development Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2015-02-17 Bernard First version
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* 2016-05-07 Bernard Rename dfs_lwip to dfs_net
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* 2018-03-09 Bernard Fix the last data issue in poll.
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*/
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#include <rtthread.h>
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#include <dfs.h>
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#include <dfs_fs.h>
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#include <dfs_file.h>
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#include <dfs_posix.h>
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#include <rtdevice.h>
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#include <sys/socket.h>
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#include <dfs_poll.h>
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#include "dfs_net.h"
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int dfs_net_getsocket(int fd)
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{
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int sock;
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struct dfs_fd *_dfs_fd;
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_dfs_fd = fd_get(fd);
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if (_dfs_fd == NULL) return -1;
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if (_dfs_fd->type != FT_SOCKET) sock = -1;
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else sock = (int)_dfs_fd->data;
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fd_put(_dfs_fd); /* put this dfs fd */
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return sock;
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}
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static int dfs_net_ioctl(struct dfs_fd* file, int cmd, void* args)
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{
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return -EIO;
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}
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static int dfs_net_read(struct dfs_fd* file, void *buf, size_t count)
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{
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int sock;
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sock = (int)file->data;
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count = lwip_read(sock, buf, count);
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return count;
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}
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static int dfs_net_write(struct dfs_fd *file, const void *buf, size_t count)
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{
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int sock;
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sock = (int)file->data;
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count = lwip_write(sock, buf, count);
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return count;
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}
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static int dfs_net_close(struct dfs_fd* file)
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{
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int sock;
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int result;
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sock = (int)file->data;
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result = lwip_close(sock);
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if (result == 0) return RT_EOK;
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return -result;
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}
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static int dfs_net_poll(struct dfs_fd *file, struct rt_pollreq *req)
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{
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int sfd;
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int mask = 0;
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struct lwip_sock *sock;
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sfd = (int)file->data;
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sock = lwip_tryget_socket(sfd);
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if (sock != NULL)
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{
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rt_base_t level;
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rt_poll_add(&sock->wait_head, req);
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level = rt_hw_interrupt_disable();
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if (sock->lastdata || sock->rcvevent)
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{
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mask |= POLLIN;
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}
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if (sock->sendevent)
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{
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mask |= POLLOUT;
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}
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if (sock->errevent)
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{
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mask |= POLLERR;
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}
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rt_hw_interrupt_enable(level);
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}
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return mask;
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}
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const struct dfs_file_ops _net_fops =
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{
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NULL, /* open */
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dfs_net_close,
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dfs_net_ioctl,
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dfs_net_read,
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dfs_net_write,
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NULL,
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NULL, /* lseek */
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NULL, /* getdents */
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dfs_net_poll,
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};
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const struct dfs_file_ops *dfs_net_get_fops(void)
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{
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return &_net_fops;
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}
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