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TCP_OVERSIZE: make segment size allocated by TCP_OVERSIZE overridable for tests

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This commit is contained in:
goldsimon 2014-12-17 09:32:08 +01:00
parent db4844e3f0
commit 5d74d97fe1
1 changed files with 8 additions and 1 deletions
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9
src/core/tcp_out.c
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@ -86,6 +86,13 @@
#endif
#endif
#if TCP_OVERSIZE
/** The size of segment pbufs created when TCP_OVERSIZE is enabled */
#ifndef TCP_OVERSIZE_CALC_LENGTH
#define TCP_OVERSIZE_CALC_LENGTH(length) ((length) + TCP_OVERSIZE)
#endif
#endif
/* Forward declarations.*/
static void tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb);
@ -258,7 +265,7 @@ tcp_pbuf_prealloc(pbuf_layer layer, u16_t length, u16_t max_length,
(!first_seg ||
pcb->unsent != NULL ||
pcb->unacked != NULL))) {
alloc = LWIP_MIN(max_length, LWIP_MEM_ALIGN_SIZE(length + TCP_OVERSIZE));
alloc = LWIP_MIN(max_length, LWIP_MEM_ALIGN_SIZE(TCP_OVERSIZE_CALC_LENGTH(length)));
}
}
#endif /* LWIP_NETIF_TX_SINGLE_PBUF */