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Merge branch 'bugifx/httpd_reuseaddr_backport_v3.3' into 'release/v3.3'

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esp_http_server : Allow binding to same address and port upon restarting server without delay (backport v3.3)

See merge request idf/esp-idf!4939
This commit is contained in:
Angus Gratton 2019-05-10 10:45:55 +08:00
commit 532c8847c7
1 changed files with 9 additions and 0 deletions
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9
components/esp_http_server/src/httpd_main.c
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@ -254,6 +254,15 @@ static esp_err_t httpd_server_init(struct httpd_data *hd)
.sin6_port = htons(hd->config.server_port)
};
/* Enable SO_REUSEADDR to allow binding to the same
* address and port when restarting the server */
int enable = 1;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable)) < 0) {
/* This will fail if CONFIG_LWIP_SO_REUSE is not enabled. But
* it does not affect the normal working of the HTTP Server */
ESP_LOGW(TAG, LOG_FMT("error enabling SO_REUSEADDR (%d)"), errno);
}
int ret = bind(fd, (struct sockaddr *)&serv_addr, sizeof(serv_addr));
if (ret < 0) {
ESP_LOGE(TAG, LOG_FMT("error in bind (%d)"), errno);