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tcp: document TCP_EVENT_ERR exception for SYN_RCVD

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goldsimon 2018-02-04 14:19:39 +01:00
parent 2a4dd0dc7b
commit dc882801bb
1 changed files with 2 additions and 0 deletions
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2
src/include/lwip/priv/tcp_priv.h
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@ -177,6 +177,8 @@ err_t tcp_process_refused_data(struct tcp_pcb *pcb);
ret = lwip_tcp_event((pcb)->callback_arg, (pcb), LWIP_EVENT_POLL, NULL, 0, ERR_OK); \
} else { \
ret = ERR_ARG; } } while(0)
/* For event API, last state SYN_RCVD must be excluded here: the application
has not seen this pcb, yet! */
#define TCP_EVENT_ERR(last_state,errf,arg,err) do { if (last_state != SYN_RCVD) { \
lwip_tcp_event((arg), NULL, LWIP_EVENT_ERR, NULL, 0, (err)); } } while(0)