65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
// 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_USE_ONLY_LWIP_SELECT
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#include "lwip/sockets.h"
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#ifdef CONFIG_SUPPRESS_SELECT_DEBUG_OUTPUT
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#define LOG_LOCAL_LEVEL ESP_LOG_NONE
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#endif //CONFIG_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_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_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", 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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