/******************************************************************************
* FunctionName : espconn_tcp_write
* Description : write the packet which in the active connection's list.
* Parameters : arg -- the node pointer which reverse the packet
* Returns : ESPCONN_MEM: memory error
* ESPCONN_OK:have enough space for write packet
*******************************************************************************/
err_t ICACHE_FLASH_ATTR espconn_tcp_write(void *arg)
{
espconn_msg *pwrite = (espconn_msg *) arg;
err_t err = ERR_OK;
struct tcp_pcb *pcb = (struct tcp_pcb *)(pwrite->pcommon.pcb);
/*for one active connection,limit the sender buffer space*/
if (tcp_nagle_disabled(pcb) && (pcb->snd_queuelen >= TCP_SND_QUEUELEN(0)))
return ESPCONN_MEM;
while (tcp_sndbuf(pcb) != 0){
if (pwrite->pcommon.ptail != NULL) {
/*Find the node whether in the list's tail or not*/
if (pwrite->pcommon.ptail->unsent == 0) {
pwrite->pcommon.ptail = pwrite->pcommon.ptail->pnext;
continue;
}
/*Send the packet for the active connection*/
err = espconn_tcp_sent(pwrite, pwrite->pcommon.ptail->punsent,pwrite->pcommon.ptail->unsent);
if (err != ERR_OK)
break;
} else
break;
}
return err;
}
/******************************************************************************
* FunctionName : espconn_server_sent
* Description : Data has been sent and acknowledged by the remote host.
* This means that more data can be sent.
* Parameters : arg -- Additional argument to pass to the callback function
* pcb -- The connection pcb for which data has been acknowledged
* len -- The amount of bytes acknowledged
* Returns : ERR_OK: try to send some data by calling tcp_output
* ERR_ABRT: if you have called tcp_abort from within the function!
*******************************************************************************/
static err_t ICACHE_FLASH_ATTR
espconn_server_sent(void *arg, struct tcp_pcb *pcb, u16_t len)
{
espconn_msg *psent_cb = arg;
psent_cb->pcommon.pcb = pcb;
psent_cb->pcommon.recv_check = 0;
psent_cb->pcommon.write_total += len;
espconn_printf("espconn_server_sent sent %d %d\n", len, psent_cb->pcommon.write_total);
if (psent_cb->pcommon.write_total == psent_cb->pcommon.write_len){
psent_cb->pcommon.write_total = 0;
psent_cb->pcommon.write_len = 0;
if (psent_cb ->pcommon.cntr == 0) {
psent_cb ->pespconn ->state = ESPCONN_CONNECT;
if (psent_cb ->pespconn ->sent_callback != NULL) {
psent_cb ->pespconn ->sent_callback(psent_cb ->pespconn);
}
} else
espconn_tcp_sent(psent_cb, psent_cb ->pcommon.ptrbuf, psent_cb ->pcommon.cntr);
} else {
}
return ERR_OK;
}
/******************************************************************************
* FunctionName : espconn_sent
* Description : sent data for client or server
* Parameters : espconn -- espconn to set for client or server
* psent -- data to send
* length -- length of data to send
* Returns : none
*******************************************************************************/
sint8 ICACHE_FLASH_ATTR
espconn_sent(struct espconn *espconn, uint8 *psent, uint16 length)
{
espconn_msg *pnode = NULL;
bool value = false;
if (espconn == NULL) {
return ESPCONN_ARG;
}
espconn ->state = ESPCONN_WRITE;
value = espconn_find_connection(espconn, &pnode);
switch (espconn ->type) {
case ESPCONN_TCP:
// if (value && (pnode->pcommon.write_len == pnode->pcommon.write_total)){
if (value && (pnode->pcommon.cntr == 0)){
espconn_tcp_sent(pnode, psent, length);
}else
return ESPCONN_ARG;
break;
case ESPCONN_UDP: {
if (value)
espconn_udp_sent(pnode, psent, length);
else
return ESPCONN_ARG;
break;
}
default :
break;
}
return ESPCONN_OK;
}
/******************************************************************************
* FunctionName : espconn_client_sent
* Description : Data has been sent and acknowledged by the remote host.
* This means that more data can be sent.
* Parameters : arg -- Additional argument to pass to the callback function
* pcb -- The connection pcb for which data has been acknowledged
* len -- The amount of bytes acknowledged
* Returns : ERR_OK: try to send some data by calling tcp_output
* ERR_ABRT: if you have called tcp_abort from within the function!
*******************************************************************************/
static err_t
espconn_client_sent(void *arg, struct tcp_pcb *pcb, u16_t len)
{
espconn_msg *psent_cb = arg;
psent_cb->pcommon.pcb = pcb;
if (psent_cb->pcommon.cntr == 0) {
psent_cb->pespconn->state = ESPCONN_CONNECT;
if (psent_cb->pespconn->sent_callback != NULL) {
psent_cb->pespconn->sent_callback(psent_cb->pespconn);
}
} else
espconn_tcp_sent(psent_cb, psent_cb->pcommon.ptrbuf, psent_cb->pcommon.cntr);
return ERR_OK;
}
