terminate connections on long network timeouts

src/main.c

@@ -444,16 +444,6 @@ void handlePacket (int client_fd, int length, int packet_id, int state) {
 
 }
 
-void disconnectClient (int *client_fd, int cause) {
-  if (*client_fd == -1) return;
-  client_count --;
-  setClientState(*client_fd, STATE_NONE);
-  handlePlayerDisconnect(*client_fd);
-  close(*client_fd);
-  *client_fd = -1;
-  printf("Disconnected client %d, cause: %d, errno: %d\n\n", *client_fd, cause, errno);
-}
-
 int main () {
 
   // Hash the seeds to ensure they're random enough
@@ -655,6 +645,7 @@ void wifi_init () {
 
   esp_wifi_set_mode(WIFI_MODE_STA);
   esp_wifi_set_config(WIFI_IF_STA, &wifi_config);
+  esp_wifi_set_ps(WIFI_PS_NONE);
   esp_wifi_start();
 }
 

src/procedures.c

@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <errno.h>
 
 #include "globals.h"
 #include "tools.h"
@@ -145,6 +146,16 @@ void handlePlayerDisconnect (int client_fd) {
   }
 }
 
+void disconnectClient (int *client_fd, int cause) {
+  if (*client_fd == -1) return;
+  client_count --;
+  setClientState(*client_fd, STATE_NONE);
+  handlePlayerDisconnect(*client_fd);
+  close(*client_fd);
+  *client_fd = -1;
+  printf("Disconnected client %d, cause: %d, errno: %d\n\n", *client_fd, cause, errno);
+}
+
 uint8_t serverSlotToClientSlot (int window_id, uint8_t slot) {
 
   if (window_id == 0) { // player inventory

src/tools.c

@@ -17,6 +17,7 @@
 
 #include "globals.h"
 #include "varnum.h"
+#include "procedures.h"
 #include "tools.h"
 
 static uint64_t htonll (uint64_t value) {
@@ -57,7 +58,10 @@ ssize_t recv_all (int client_fd, void *buf, size_t n, uint8_t require_first) {
     if (r < 0) {
       if (errno == EAGAIN || errno == EWOULDBLOCK) {
         // handle network timeout
-        if (get_program_time() - last_update_time > NETWORK_TIMEOUT_TIME) return -1;
+        if (get_program_time() - last_update_time > NETWORK_TIMEOUT_TIME) {
+          disconnectClient(&client_fd, -1);
+          return -1;
+        }
         task_yield();
         continue;
       } else {
@@ -101,7 +105,10 @@ ssize_t send_all (int client_fd, const void *buf, ssize_t len) {
     // not yet ready to transmit, try again
     if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK) {
       // handle network timeout
-      if (get_program_time() - last_update_time > NETWORK_TIMEOUT_TIME) return -1;
+      if (get_program_time() - last_update_time > NETWORK_TIMEOUT_TIME) {
+        disconnectClient(&client_fd, -2);
+        return -1;
+      }
       task_yield();
       continue;
     }