113 lines
2.3 KiB
C
113 lines
2.3 KiB
C
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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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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* 2018-05-24 ChenYong Add socket abstraction layer
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*/
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#include <rtthread.h>
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#include <dfs.h>
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#include <dfs_net.h>
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#include <sys/socket.h>
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int dfs_net_getsocket(int fd)
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{
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int socket;
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struct dfs_file *file;
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file = fd_get(fd);
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if (file == NULL) return -1;
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if (file->vnode->type != FT_SOCKET) socket = -1;
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else socket = (int)(size_t)file->vnode->data;
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return socket;
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}
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static int dfs_net_ioctl(struct dfs_file* file, int cmd, void* args)
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{
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int ret;
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int socket = (int)(size_t)file->vnode->data;
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ret = sal_ioctlsocket(socket, cmd, args);
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if (ret < 0)
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{
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ret = rt_get_errno();
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return (ret > 0) ? (-ret) : ret;
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}
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return ret;
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}
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static int dfs_net_read(struct dfs_file* file, void *buf, size_t count)
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{
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int ret;
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int socket = (int)(size_t)file->vnode->data;
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ret = sal_recvfrom(socket, buf, count, 0, NULL, NULL);
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if (ret < 0)
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{
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ret = rt_get_errno();
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return (ret > 0) ? (-ret) : ret;
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}
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return ret;
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}
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static int dfs_net_write(struct dfs_file *file, const void *buf, size_t count)
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{
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int ret;
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int socket = (int)(size_t)file->vnode->data;
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ret = sal_sendto(socket, buf, count, 0, NULL, 0);
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if (ret < 0)
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{
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ret = rt_get_errno();
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return (ret > 0) ? (-ret) : ret;
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}
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return ret;
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}
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static int dfs_net_close(struct dfs_file* file)
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{
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int socket;
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int ret = 0;
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if (file->vnode->ref_count == 1)
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{
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socket = (int)(size_t)file->vnode->data;
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ret = sal_closesocket(socket);
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}
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return ret;
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}
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static int dfs_net_poll(struct dfs_file *file, struct rt_pollreq *req)
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{
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extern int sal_poll(struct dfs_file *file, struct rt_pollreq *req);
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return sal_poll(file, req);
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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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