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lwip: add socket tx flow control

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liuzhifu 2016-09-07 13:07:30 +08:00 committed by Wu Jian Gang
parent db93bceb55
commit a28ef1776e
1 changed files with 6 additions and 6 deletions
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12
components/lwip/api/sockets.c
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@ -389,18 +389,18 @@ static void lwip_socket_drop_registered_memberships(int s);
#ifdef LWIP_ESP8266
extern size_t system_get_free_heap_size(void);
#define DELAY_WHEN_MEMORY_NOT_ENOUGH() \
extern bool esp_wifi_tx_is_stop(void);
#define ESP32_TX_FLOW_CTRL() \
do{\
uint8_t _wait_delay = 0;\
while (system_get_free_heap_size() < HEAP_HIGHWAT){\
while ((system_get_free_heap_size() < HEAP_HIGHWAT) || esp_wifi_tx_is_stop()){\
vTaskDelay(_wait_delay/portTICK_RATE_MS);\
if (_wait_delay < 64) _wait_delay *= 2;\
}\
}while(0)
#else
#define DELAY_WHEN_MEMORY_NOT_ENOUGH()
#define ESP32_TX_FLOW_CTRL()
#endif
/** The global array of available sockets */
@ -1219,7 +1219,7 @@ lwip_send(int s, const void *data, size_t size, int flags)
#endif /* (LWIP_UDP || LWIP_RAW) */
}
DELAY_WHEN_MEMORY_NOT_ENOUGH();
ESP32_TX_FLOW_CTRL();
write_flags = NETCONN_COPY |
((flags & MSG_MORE) ? NETCONN_MORE : 0) |
@ -1402,7 +1402,7 @@ lwip_sendto(int s, const void *data, size_t size, int flags,
#endif /* LWIP_TCP */
}
DELAY_WHEN_MEMORY_NOT_ENOUGH();
ESP32_TX_FLOW_CTRL();
if ((to != NULL) && !SOCK_ADDR_TYPE_MATCH(to, sock)) {
/* sockaddr does not match socket type (IPv4/IPv6) */