/**
* Error handler callback.
* Although this is called reconnect by Espressif, this is really an error handler
* routine. It will be called when an error is detected.
*/
static void esp8266_callback_reconnectCB(
void *arg, //!< A pointer to a `struct espconn`.
sint8 err //!< The error code.
) {
os_printf(">> reconnectCB: Error code is: %d - %s\n", err, esp8266_errorToString(err));
os_printf("<< reconnectCB");
}
/**
* Error handler callback.
* Although this is called `reconnect` by Espressif, this is really a connection reset callback.
*/
static void esp8266_callback_reconnectCB(
void *arg, //!< A pointer to a `struct espconn`.
sint8 err //!< The error code.
) {
struct espconn *pEspconn = (struct espconn *)arg;
struct socketData *pSocketData = (struct socketData *)pEspconn->reverse;
if (pSocketData == NULL) return; // we already closed this.
//if (pEspconn != pSocketData->pEspconn) DBG("%s: pEspconn changed in reconnectCB ***\n", DBG_LIB);
DBG("%s: socket %d connection reset: Err %d - %s\n", DBG_LIB,
pSocketData->socketId, err, esp8266_errorToString(err));
// Do the same as for a disconnect
esp8266_callback_disconnectCB(arg);
// Set the socket state as in error (unless it got freed by esp8266_callback_disconnectCB)
if (pSocketData->state != SOCKET_STATE_UNUSED)
setSocketInError(pSocketData, err);
//DBG("%s: ret from reconnectCB\n", DBG_LIB);
}
/**
* Continue creating a socket, the name resolution having completed
*/
static int connectSocket(
struct socketData *pSocketData //!< Allocated socket data structure
) {
struct espconn *pEspconn = pSocketData->pEspconn;
bool isServer = *(uint32_t *)&pEspconn->proto.tcp->remote_ip == 0;
int newSocket = pSocketData->socketId;
assert(pSocketData->rxBufQ == NULL);
assert(pSocketData->currentTx == NULL);
// If we are a client
if (!isServer) {
pSocketData->state = SOCKET_STATE_CONNECTING;
pSocketData->creationType = SOCKET_CREATED_OUTBOUND;
espconn_regist_connectcb(pEspconn, esp8266_callback_connectCB_outbound);
espconn_regist_disconcb(pEspconn, esp8266_callback_disconnectCB);
espconn_regist_reconcb(pEspconn, esp8266_callback_reconnectCB);
espconn_regist_sentcb(pEspconn, esp8266_callback_sentCB);
espconn_regist_recvcb(pEspconn, esp8266_callback_recvCB);
// Make a call to espconn_connect.
#if 0
DBG("%s: connecting socket %d/%p/%p to %d.%d.%d.%d:%d from :%d\n",
DBG_LIB, pSocketData->socketId, pSocketData, pEspconn,
IP2STR(pEspconn->proto.tcp->remote_ip), pEspconn->proto.tcp->remote_port,
pEspconn->proto.tcp->local_port);
#endif
int rc = espconn_connect(pEspconn);
if (rc != 0) {
DBG("%s: error %d connecting socket %d: %s\n", DBG_LIB,
rc, pSocketData->socketId, esp8266_errorToString(rc));
releaseEspconn(pSocketData);
releaseSocket(pSocketData);
return rc;
}
DBG("%s: connecting socket %d to %d.%d.%d.%d:%d\n", DBG_LIB, pSocketData->socketId,
IP2STR(pEspconn->proto.tcp->remote_ip), pEspconn->proto.tcp->remote_port);
}
// If the ipAddress IS 0 ... then we are a server.
else {
// We are going to set ourselves up as a server
pSocketData->state = SOCKET_STATE_IDLE;
pSocketData->creationType = SOCKET_CREATED_SERVER;
pEspconn->proto.tcp->local_port = pEspconn->proto.tcp->remote_port;
pEspconn->proto.tcp->remote_port = 0;
espconn_regist_connectcb(pEspconn, esp8266_callback_connectCB_inbound);
// Make a call to espconn_accept (this should really be called espconn_listen, sigh)
int rc = espconn_accept(pEspconn);
if (rc != 0) {
DBG("%s: error %d creating listening socket %d: %s\n", DBG_LIB,
rc, pSocketData->socketId, esp8266_errorToString(rc));
releaseEspconn(pSocketData);
releaseSocket(pSocketData);
return rc;
}
espconn_regist_time(pEspconn, 600, 0);
DBG("%s: listening socket %d on port %d\n", DBG_LIB,
pSocketData->socketId, pEspconn->proto.tcp->local_port);
}
return newSocket;
}
