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esp_http_server/lru_counter_for_timestamp:Added LRU counter for timer

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Replaced the os timer in http server by LRU counter. The timestamp is
unnecessary for LRU.
This commit is contained in:
Supreet Deshpande
2019-01-30 19:57:02 +05:30
committed by bot
parent 5ec58c316d
commit 4c8e997289
4 changed files with 21 additions and 20 deletions
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18
components/esp_http_server/src/httpd_sess.c
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@@ -195,6 +195,12 @@ static int fd_is_valid(int fd)
return fcntl(fd, F_GETFD) != -1 || errno != EBADF;
}
static inline uint64_t httpd_sess_get_lru_counter()
{
static uint64_t lru_counter = 0;
return lru_counter++;
}
void httpd_sess_delete_invalid(struct httpd_data *hd)
{
for (int i = 0; i < hd->config.max_open_sockets; i++) {
@@ -297,11 +303,11 @@ esp_err_t httpd_sess_process(struct httpd_data *hd, int newfd)
return ESP_FAIL;
}
ESP_LOGD(TAG, LOG_FMT("success"));
sd->timestamp = httpd_os_get_timestamp();
sd->lru_counter = httpd_sess_get_lru_counter();
return ESP_OK;
}
esp_err_t httpd_sess_update_timestamp(httpd_handle_t handle, int sockfd)
esp_err_t httpd_sess_update_lru_counter(httpd_handle_t handle, int sockfd)
{
if (handle == NULL) {
return ESP_ERR_INVALID_ARG;
@@ -312,7 +318,7 @@ esp_err_t httpd_sess_update_timestamp(httpd_handle_t handle, int sockfd)
int i;
for (i = 0; i < hd->config.max_open_sockets; i++) {
if (hd->hd_sd[i].fd == sockfd) {
hd->hd_sd[i].timestamp = httpd_os_get_timestamp();
hd->hd_sd[i].lru_counter = httpd_sess_get_lru_counter();
return ESP_OK;
}
}
@@ -321,7 +327,7 @@ esp_err_t httpd_sess_update_timestamp(httpd_handle_t handle, int sockfd)
esp_err_t httpd_sess_close_lru(struct httpd_data *hd)
{
int64_t timestamp = INT64_MAX;
uint64_t lru_counter = UINT64_MAX;
int lru_fd = -1;
int i;
for (i = 0; i < hd->config.max_open_sockets; i++) {
@@ -332,8 +338,8 @@ esp_err_t httpd_sess_close_lru(struct httpd_data *hd)
if (hd->hd_sd[i].fd == -1) {
return ESP_OK;
}
if (hd->hd_sd[i].timestamp < timestamp) {
timestamp = hd->hd_sd[i].timestamp;
if (hd->hd_sd[i].lru_counter < lru_counter) {
lru_counter = hd->hd_sd[i].lru_counter;
lru_fd = hd->hd_sd[i].fd;
}
}