newlib: remove direct dependencies on VFS functions
poll: use "select" not "esp_vfs_select" move to newlib pread, pwrite, select, utime: remove from newlib. VFS and/or LWIP will provide aliases for these functions.
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6330b3345e
commit
b427b23ae0
6 changed files with 78 additions and 135 deletions
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@ -3,17 +3,13 @@ set(srcs
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"heap.c"
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"locks.c"
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"poll.c"
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"pread.c"
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"pwrite.c"
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"pthread.c"
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"random.c"
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"reent_init.c"
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"select.c"
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"syscall_table.c"
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"syscalls.c"
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"termios.c"
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"time.c"
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"utime.c")
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"time.c")
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set(include_dirs platform_include)
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if(CONFIG_SPIRAM_CACHE_WORKAROUND)
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@ -1,4 +1,4 @@
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// Copyright 2019 Espressif Systems (Shanghai) PTE LTD
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// Copyright 2019-2020 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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@ -12,10 +12,84 @@
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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 <stddef.h>
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#include <sys/poll.h>
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#include "esp_vfs.h"
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#include <sys/select.h>
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#include <sys/errno.h>
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#include <sys/param.h>
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int poll(struct pollfd *fds, nfds_t nfds, int timeout)
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{
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return esp_vfs_poll(fds, nfds, timeout);
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struct timeval tv = {
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// timeout is in milliseconds
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.tv_sec = timeout / 1000,
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.tv_usec = (timeout % 1000) * 1000,
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};
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int max_fd = -1;
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fd_set readfds;
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fd_set writefds;
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fd_set errorfds;
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struct _reent* r = __getreent();
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int ret = 0;
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if (fds == NULL) {
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__errno_r(r) = ENOENT;
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return -1;
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}
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FD_ZERO(&readfds);
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FD_ZERO(&writefds);
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FD_ZERO(&errorfds);
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for (int i = 0; i < nfds; ++i) {
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fds[i].revents = 0;
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if (fds[i].fd < 0) {
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// revents should remain 0 and events ignored (according to the documentation of poll()).
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continue;
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}
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if (fds[i].fd >= FD_SETSIZE) {
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fds[i].revents |= POLLNVAL;
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++ret;
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continue;
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}
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if (fds[i].events & (POLLIN | POLLRDNORM | POLLRDBAND | POLLPRI)) {
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FD_SET(fds[i].fd, &readfds);
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FD_SET(fds[i].fd, &errorfds);
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max_fd = MAX(max_fd, fds[i].fd);
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}
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if (fds[i].events & (POLLOUT | POLLWRNORM | POLLWRBAND)) {
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FD_SET(fds[i].fd, &writefds);
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FD_SET(fds[i].fd, &errorfds);
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max_fd = MAX(max_fd, fds[i].fd);
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}
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}
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const int select_ret = select(max_fd + 1, &readfds, &writefds, &errorfds, timeout < 0 ? NULL: &tv);
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if (select_ret > 0) {
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ret += select_ret;
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for (int i = 0; i < nfds; ++i) {
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if (FD_ISSET(fds[i].fd, &readfds)) {
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fds[i].revents |= POLLIN;
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}
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if (FD_ISSET(fds[i].fd, &writefds)) {
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fds[i].revents |= POLLOUT;
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}
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if (FD_ISSET(fds[i].fd, &errorfds)) {
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fds[i].revents |= POLLERR;
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}
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}
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} else {
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ret = select_ret;
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// keeping the errno from select()
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}
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return ret;
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}
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@ -1,21 +0,0 @@
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// Copyright 2019 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 <unistd.h>
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#include "esp_vfs.h"
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ssize_t pread(int fd, void *dst, size_t size, off_t offset)
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{
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return esp_vfs_pread(fd, dst, size, offset);
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}
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@ -1,21 +0,0 @@
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// Copyright 2019 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 <unistd.h>
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#include "esp_vfs.h"
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ssize_t pwrite(int fd, const void *src, size_t size, off_t offset)
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{
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return esp_vfs_pwrite(fd, src, size, offset);
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}
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@ -1,64 +0,0 @@
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// Copyright 2018 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 <sys/select.h>
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#include "esp_vfs.h"
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#include "sdkconfig.h"
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#ifdef CONFIG_LWIP_USE_ONLY_LWIP_SELECT
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#include "lwip/sockets.h"
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#ifdef CONFIG_VFS_SUPPRESS_SELECT_DEBUG_OUTPUT
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#define LOG_LOCAL_LEVEL ESP_LOG_NONE
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#endif //CONFIG_VFS_SUPPRESS_SELECT_DEBUG_OUTPUT
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#include "esp_log.h"
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static const char *TAG = "newlib_select";
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static void log_fd_set(const char *fds_name, const fd_set *fds)
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{
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if (fds_name && fds) {
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ESP_LOGD(TAG, "FDs in %s =", fds_name);
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for (int i = 0; i < MAX_FDS; ++i) {
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if (FD_ISSET(i, fds)) {
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ESP_LOGD(TAG, "%d", i);
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}
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}
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}
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}
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#endif //CONFIG_LWIP_USE_ONLY_LWIP_SELECT
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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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#ifdef CONFIG_LWIP_USE_ONLY_LWIP_SELECT
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ESP_LOGD(TAG, "lwip_select starts with nfds = %d", nfds);
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if (timeout) {
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ESP_LOGD(TAG, "timeout is %lds + %ldus", (long)timeout->tv_sec, timeout->tv_usec);
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}
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log_fd_set("readfds", readfds);
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log_fd_set("writefds", writefds);
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log_fd_set("errorfds", errorfds);
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int ret = lwip_select(nfds, readfds, writefds, errorfds, timeout);
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ESP_LOGD(TAG, "lwip_select returns %d", ret);
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log_fd_set("readfds", readfds);
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log_fd_set("writefds", writefds);
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log_fd_set("errorfds", errorfds);
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return ret;
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#else
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return esp_vfs_select(nfds, readfds, writefds, errorfds, timeout);
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#endif
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}
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@ -1,21 +0,0 @@
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// Copyright 2018 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 <utime.h>
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#include "esp_vfs.h"
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int utime(const char *path, const struct utimbuf *times)
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{
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return esp_vfs_utime(path, times);
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}
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