因为默认开启了nagle算法就是在合并较短的数据帧，在tcp_write前(或者其他地方）加上tcp_nagle_disable(...
tcp_nagle_disable(c_pcb); if (tcp_sndbuf(c_pcb) > strlen(msg)) { err = tcp_write(c_pcb, msg, strlen(msg), TCP_WRITE_FLAG_COPY); if (err != ERR_OK) xil_printf("tcp_server: Error on tcp_write: %d\r\n", err); err = tcp_output(c_pcb); if (err != ERR_OK) xil_pr...
*/ #endif /* TCP_TMR_INTERVAL */ I use STM32H725IGK6 + PHY ADIN1100. Code generated by CUBEMX. No RTOS, with ETH and with LWIP. Another time improvement was to disable nagle algorithm (to force sending short messages): #define tcp_nagle_disable(pcb) tcp_set_flags(pcb, TF_NODELAY...
这篇文章覆盖了 LwIP 协议大部分的内容,但是并不全面.它主要讲解了 LwIP 协议最重 要也是最常被用到的部分,包括内存管理,底层网络接口管理,ARP 层,IP 层,TCP 层,API 层等,这些部分是 LwIP 的典型应用中经常涉及到的.而 LwIP 协议的其他部分,包括 UDP, DHCP,DNS,IGMP,SNMP,PPP 等不具有使用共性的部分,这...
#define TF_RXCLOSED 0x10U /* 关闭接收 rx closed by tcp_shutdown */ #define TF_FIN 0x20U /* 本地主动请求关闭Connection was closed locally (FIN segment enqueued). */ #define TF_NODELAY 0x40U /* Disable Nagle algorithm 禁止Nagle算法*/ ...
16 #define TF_RXCLOSED 0x10U /* rx closed by tcp_shutdown */ 17 #define TF_FIN 0x20U /* Connection was closed locally (FIN segment enqueued). */ 18 #define TF_NODELAY 0x40U /* Disable Nagle algorithm */ 19 #define TF_NAGLEMEMERR 0x80U /* nagle enabled, memerr, try to output...
*/#define TF_NODELAY ((u8_t)0x40U) /* Disable Nagle algorithm */#define TF_NAGLEMEMERR ((u8_t)0x80U) /* nagle enabled, memerr, try to output to prevent delayed ACK to happen */ /* the rest of the fields are in host byte order as we have to do some math with them */ /...
TF_RXCLOSED 0x10U /* rx closed by tcp_shutdown */ 17 #define TF_FIN 0x20U /* Connection was closed locally (FIN segment enqueued). */ 18 #define TF_NODELAY 0x40U /* Disable Nagle algorithm */ 19 #define TF_NAGLEMEMERR 0x80U /* nagle enabled, memerr, try to output to pr...
setNoDelay(flag): Sets or clears the TCP_NODELAY flag in order to disable or enable Nagle's algorithm, respectively. This must be changed for each new connection. Returns true if connected and the option was set, and false otherwise. isNoDelay(): Returns whether the TCP_NODELAY flag is ...
tcp_close failed to enqueue the FIN (retried in tcp_tmr) */#defineTF_RXCLOSED 0x10U/* rx closed by tcp_shutdown */#defineTF_FIN 0x20U/* Connection was closed locally (FIN segment enqueued). */#defineTF_NODELAY 0x40U/* Disable Nagle algorithm */#defineTF_NAGLEMEMERR 0x80U/* nagl...