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Better handling of wifi disconnect (#231)

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When network interface is down, some nasty things happen, for instance tcp_connect returns without ever calling error callback.
This change adds some workarounds for that: before doing a tcp connect and DNS resolve we check if there is a route available.
Also added a listener for wifi events which stops (aborts) all the WiFiClients and WiFiUDPs when wifi is disconnected. This should
help libraries detect disconnect properly.
This commit is contained in:
Ivan Grokhotkov
2015-06-11 18:01:08 +03:00
parent 567d401ed3
commit e6e57a8b81
7 changed files with 118 additions and 12 deletions
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6
libraries/ESP8266WiFi/src/WiFiClient.h
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@ -26,11 +26,12 @@
#include "Client.h"
#include "IPAddress.h"
#include <memory>
#include "include/slist.h"
class ClientContext;
class WiFiServer;
class WiFiClient : public Client {
class WiFiClient : public Client, public SList<WiFiClient> {
protected:
WiFiClient(ClientContext* client);
@ -89,6 +90,8 @@ public:
using Print::write;
static void stopAll();
private:
static int8_t _s_connected(void* arg, void* tpcb, int8_t err);
@ -99,7 +102,6 @@ private:
ClientContext* _client;
static uint16_t _localPort;
};