The number of sys timeouts used by the core stack (not apps) The default number of timeouts is calculated here for all enabled modules.

Definition at line 508 of file opt.h.

MEMP_NUM_ALTCP_PCB: the number of simultaneously active altcp layer pcbs.

(requires the LWIP_ALTCP option) Connections with multiple layers require more than one altcp_pcb (e.g. TLS over TCP requires 2 altcp_pcbs, one for TLS and one for TCP).

Definition at line 462 of file opt.h.

MEMP_NUM_API_MSG: the number of concurrently active calls to various socket, netconn, and tcpip functions.

Definition at line 589 of file opt.h.

MEMP_NUM_ARP_QUEUE: the number of simultaneously queued outgoing packets (pbufs) that are waiting for an ARP request (to resolve their destination address) to finish.

(requires the ARP_QUEUEING option)

Definition at line 491 of file opt.h.

MEMP_NUM_DNS_API_MSG: the number of concurrently active calls to netconn_gethostbyname.

Definition at line 595 of file opt.h.

MEMP_NUM_FRAG_PBUF: the number of IP fragments simultaneously sent (fragments, not whole packets!).

This is only used with LWIP_NETIF_TX_SINGLE_PBUF==0 and only has to be > 1 with DMA-enabled MACs where the packet is not yet sent when netif->output returns.

Definition at line 481 of file opt.h.

MEMP_NUM_IGMP_GROUP: The number of multicast groups whose network interfaces can be members at the same time (one per netif - allsystems group -, plus one per netif membership).

(requires the LWIP_IGMP option)

Definition at line 501 of file opt.h.

MEMP_NUM_LOCALHOSTLIST: the number of host entries in the local host list if DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1.

Definition at line 575 of file opt.h.

MEMP_NUM_NETBUF: the number of struct netbufs.

(only needed if you use the sequential API, like api_lib.c)

Definition at line 524 of file opt.h.

MEMP_NUM_NETCONN: the number of struct netconns.

(only needed if you use the sequential API, like api_lib.c)

Definition at line 532 of file opt.h.

MEMP_NUM_NETDB: the number of concurrently running lwip_addrinfo() calls (before freeing the corresponding memory using lwip_freeaddrinfo()).

Definition at line 567 of file opt.h.

MEMP_NUM_NETIFAPI_MSG: the number of concurrently active calls to the netifapi functions.

Definition at line 609 of file opt.h.

MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF).

If the application sends a lot of data out of ROM (or other static memory), this should be set high.

Definition at line 411 of file opt.h.

MEMP_NUM_RAW_PCB: Number of raw connection PCBs (requires the LWIP_RAW option)

Definition at line 419 of file opt.h.

MEMP_NUM_REASSDATA: the number of IP packets simultaneously queued for reassembly (whole packets, not fragments!)

Definition at line 470 of file opt.h.

MEMP_NUM_SELECT_CB: the number of struct lwip_select_cb.

(Only needed if you have LWIP_MPU_COMPATIBLE==1 and use the socket API. In that case, you need one per thread calling lwip_select.)

Definition at line 541 of file opt.h.

MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA: the number of concurrently active calls to getsockopt/setsockopt.

Definition at line 602 of file opt.h.

MEMP_NUM_SYS_TIMEOUT: the number of simultaneously active timeouts.

The default number of timeouts is calculated here for all enabled modules. The formula expects settings to be either '0' or '1'.

Definition at line 516 of file opt.h.

MEMP_NUM_TCP_PCB: the number of simultaneously active TCP connections.

(requires the LWIP_TCP option)

Definition at line 436 of file opt.h.

MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections.

(requires the LWIP_TCP option)

Definition at line 444 of file opt.h.

MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments.

(requires the LWIP_TCP option)

Definition at line 452 of file opt.h.

MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used for callback/timeout API communication.

(only needed if you use tcpip.c)

Definition at line 550 of file opt.h.

MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used for incoming packets.

(only needed if you use tcpip.c)

Definition at line 559 of file opt.h.

MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks.

One per active UDP "connection". (requires the LWIP_UDP option)

Definition at line 428 of file opt.h.

PBUF_POOL_SIZE: the number of buffers in the pbuf pool.

Definition at line 582 of file opt.h.