alex/esp-idf
alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2024-10-05 20:47:46 -04:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

lwip: optimize low_level_output

Browse Source 
When the parameter pbuf for low_level_output is a list, malloc a new pbuf of
which the length equals to the total length of pbuf and send the new pbuf to L2
This commit is contained in:
Liu Zhi Fu 2016-11-19 22:25:30 +08:00
parent 139fdcb9ec
commit fa57720cdf
1 changed files with 18 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
components/lwip/port/netif/wlanif.c
View File

@ -118,37 +118,29 @@ low_level_init(struct netif *netif)
static err_t
low_level_output(struct netif *netif, struct pbuf *p)
{
struct pbuf *q;
wifi_interface_t wifi_if = tcpip_adapter_get_wifi_if(netif);
wifi_interface_t wifi_if = tcpip_adapter_get_wifi_if(netif);
struct pbuf *q = p;
err_t ret;
if (wifi_if >= WIFI_IF_MAX) {
return ERR_IF;
}
if (wifi_if >= WIFI_IF_MAX) {
return ERR_IF;
}
#if ESP_LWIP
q = p;
u16_t pbuf_x_len = 0;
pbuf_x_len = q->len;
if(q->next !=NULL)
{
//char cnt = 0;
struct pbuf *tmp = q->next;
while(tmp != NULL)
{
memcpy( (u8_t *)( (u8_t *)(q->payload) + pbuf_x_len), (u8_t *)tmp->payload , tmp->len );
pbuf_x_len += tmp->len;
//cnt++;
tmp = tmp->next;
LWIP_DEBUGF(PBUF_DEBUG, ("low_level_output: pbuf is a list, application may has bug"));
printf("low level_output: len=%d\n", p->tot_len);
q = pbuf_alloc(PBUF_RAW_TX, p->tot_len, PBUF_RAM);
if (q != NULL) {
pbuf_copy(q, p);
} else {
return ERR_MEM;
}
}
return esp_wifi_internal_tx(wifi_if, q->payload, pbuf_x_len);
#else
for(q = p; q != NULL; q = q->next) {
esp_wifi_internal_tx(wifi_if, q->payload, q->len);
}
return ERR_OK;
#endif
ret = esp_wifi_internal_tx(wifi_if, q->payload, q->len);
pbuf_free(q);
return ret;
}
/**