Lines Matching refs:pbuf

83 /** Allocate a pbuf and create a tcphdr at p->payload, used for output
89  * @param datalen length of tcp data to reserve in pbuf
91  * @return pbuf with p->payload being the tcp_hdr
93 static struct pbuf *
98   struct pbuf *p = pbuf_alloc(PBUF_IP, TCP_HLEN + optlen + datalen, PBUF_RAM);
100     LWIP_ASSERT("check that first pbuf can hold struct tcp_hdr",
150  * @param p pbuf that is used to hold the TCP header.
159 tcp_create_segment(struct tcp_pcb *pcb, struct pbuf *p, u8_t flags, u32_t seqno, u8_t optflags)
186     LWIP_DEBUGF(TCP_OUTPUT_DEBUG | 2, ("tcp_create_segment: no room for TCP header in pbuf.\n"));
203  * Allocate a PBUF_RAM pbuf, perhaps with extra space at the end.
209  * @param length size of the pbuf's payload.
212  * @param pcb The TCP connection that willo enqueue the pbuf.
214  * @param first_seg true when this pbuf will be used in the first enqueued segment.
218 static struct pbuf *
223   struct pbuf *p;
235     /* Should we allocate an oversized pbuf, or just the minimum
259   LWIP_ASSERT("need unchained pbuf", p->next == NULL);
356   struct pbuf *concat_p = NULL;
402    * 1. Copy data directly into an oversized pbuf.
403    * 2. Chain a new pbuf to the end of pcb->unsent.
435      * Phase 1: Copy data directly into an oversized pbuf.
461      * Phase 2: Chain a new pbuf to the end of pcb->unsent.
464      * (len==0). The new pbuf is kept in concat_p and pbuf_cat'ed at
471       /* Create a pbuf with a copy or reference to seglen bytes. We
478                       ("tcp_write : could not allocate memory for pbuf copy size %"U16_F"\n",
493                       ("tcp_write: could not allocate memory for zero-copy pbuf\n"));
523     struct pbuf *p;
534        * into pbuf */
536         LWIP_DEBUGF(TCP_OUTPUT_DEBUG | 2, ("tcp_write : could not allocate memory for pbuf copy size %"U16_F"\n", seglen));
539       LWIP_ASSERT("tcp_write: check that first pbuf can hold the complete seglen",
543       /* Copy is not set: First allocate a pbuf for holding the data.
548       struct pbuf *p2;
553         LWIP_DEBUGF(TCP_OUTPUT_DEBUG | 2, ("tcp_write: could not allocate memory for zero-copy pbuf\n"));
563       /* Second, allocate a pbuf for the headers. */
565         /* If allocation fails, we have to deallocate the data pbuf as
568         LWIP_DEBUGF(TCP_OUTPUT_DEBUG | 2, ("tcp_write: could not allocate memory for header pbuf\n"));
623    * last_unsent, we update the length fields of the pbuf chain.
627     struct pbuf *p;
724   struct pbuf *p;
763   /* Allocate pbuf with room for TCP header + options */
769   LWIP_ASSERT("tcp_enqueue_flags: check that first pbuf can hold optlen",
844   struct pbuf *p;
856     LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_output: (ACK) could not allocate pbuf\n"));
1199   struct pbuf *p;
1203       LWIP_DEBUGF(TCP_DEBUG, ("tcp_rst: could not allocate memory for pbuf\n"));
1206   LWIP_ASSERT("check that first pbuf can hold struct tcp_hdr",
1366   struct pbuf *p;
1379                 ("tcp_keepalive: could not allocate memory for pbuf\n"));
1416   struct pbuf *p;
1448     LWIP_DEBUGF(TCP_DEBUG, ("tcp_zero_window_probe: no memory for pbuf\n"));