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TCP_OVERSIZE: make segment size allocated by TCP_OVERSIZE overridable for tests
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@ -86,6 +86,13 @@
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#endif
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#endif
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#if TCP_OVERSIZE
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/** The size of segment pbufs created when TCP_OVERSIZE is enabled */
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#ifndef TCP_OVERSIZE_CALC_LENGTH
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#define TCP_OVERSIZE_CALC_LENGTH(length) ((length) + TCP_OVERSIZE)
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#endif
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#endif
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/* Forward declarations.*/
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static void tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb);
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@ -258,7 +265,7 @@ tcp_pbuf_prealloc(pbuf_layer layer, u16_t length, u16_t max_length,
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(!first_seg ||
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pcb->unsent != NULL ||
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pcb->unacked != NULL))) {
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alloc = LWIP_MIN(max_length, LWIP_MEM_ALIGN_SIZE(length + TCP_OVERSIZE));
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alloc = LWIP_MIN(max_length, LWIP_MEM_ALIGN_SIZE(TCP_OVERSIZE_CALC_LENGTH(length)));
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}
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}
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#endif /* LWIP_NETIF_TX_SINGLE_PBUF */
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