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https://github.com/espressif/esp-idf.git
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b203ac7b02
* If CONFIG_VFS_SUPPORT_IO=y, keep everything as it is now * If CONFIG_VFS_SUPPORT_IO=n, defined syscalls which LwIP can implement, such as read/write/close * Make LWIP-only select implementation dependent on CONFIG_VFS_SUPPORT_SELECT, deprecate CONFIG_LWIP_USE_ONLY_LWIP_SELECT
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <string.h>
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#include <stdbool.h>
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#include <stdarg.h>
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#include <sys/errno.h>
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#include <sys/lock.h>
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#include <sys/fcntl.h>
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#include <sys/ioctl.h>
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#include "sdkconfig.h"
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#include "lwip/sockets.h"
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#include "lwip/sys.h"
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#ifdef CONFIG_VFS_SUPPORT_IO
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#error This file should only be built when CONFIG_VFS_SUPPORT_IO=n
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#endif
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/* Default implementations of read/write provided in newlib component,
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* used as a fallback for console I/O.
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*/
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extern ssize_t _write_r_console(struct _reent *r, int fd, const void * data, size_t size);
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extern ssize_t _read_r_console(struct _reent *r, int fd, const void * data, size_t size);
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ssize_t _write_r(struct _reent *r, int fd, const void * data, size_t size)
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{
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if (fd < LWIP_SOCKET_OFFSET) {
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return _write_r_console(r, fd, data, size);
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}
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return lwip_write(fd, data, size);
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}
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ssize_t _read_r(struct _reent *r, int fd, void * dst, size_t size)
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{
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if (fd < LWIP_SOCKET_OFFSET) {
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return _read_r_console(r, fd, dst, size);
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}
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return lwip_read(fd, dst, size);
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}
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int _close_r(struct _reent *r, int fd)
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{
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if (fd < LWIP_SOCKET_OFFSET) {
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errno = ENOSYS;
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return -1;
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}
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return lwip_close(fd);
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}
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int _fcntl_r(struct _reent *r, int fd, int cmd, int arg)
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{
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return lwip_fcntl(fd, cmd, arg);
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}
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int ioctl(int fd, int cmd, ...)
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{
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va_list args;
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va_start(args, cmd);
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int res = lwip_ioctl(fd, cmd, va_arg(args, void*));
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va_end(args);
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return res;
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}
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int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *errorfds, struct timeval *timeout)
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{
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return lwip_select(nfds, readfds, writefds, errorfds, timeout);
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}
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void esp_vfs_lwip_sockets_register(void)
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{
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/* Doesn't register anything, just a hook to force linking this file */
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}
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