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11 The sequential API provides a way for ordinary, sequential, programs
18 The socket API is a compatibility API for existing applications,
63 thread. The sequential API has a much higher overhead and is not very
64 well suited for small systems since it forces a multithreaded paradigm
84 the callback functions are called with a program specified argument
101 identifier (i.e., a protocol control block - PCB) is created with the
107 Creates a new connection identifier (PCB). If memory is not
113 Binds the pcb to a local IP address and port number. The IP address
122 Commands a pcb to start listening for incoming connections. When an
125 to a local port with the tcp_bind() function.
127 The tcp_listen() function returns a new connection identifier, and
130 needed for a connection that is listening, so tcp_listen() will
131 reclaim the memory needed for the original connection and allocate a
157 Specified the callback function that should be called when a new
158 connection arrives on a listening connection.
184 TCP data is sent by enqueueing the data with a call to
186 host, the application will be notified with a call to a specified
237 arrives. The callback function will be passed a NULL pbuf to
251 When a connection is idle (i.e., no data is either transmitted or
252 received), lwIP will repeatedly poll the application by calling a
253 specified callback function. This can be used either as a watchdog
255 as a method of waiting for memory to become available. For instance,
256 if a call to tcp_write() has failed because memory wasn't available,
258 again when the connection has been idle for a while.
267 twice a second. An interval of 10 means that the application would
281 The pcb is deallocated by the TCP code after a call to tcp_close().
285 Aborts the connection by sending a RST (reset) segment to the remote
293 If a connection is aborted because of an error, the application is
294 alerted of this event by the err callback. Errors that might abort a
295 connection are when there is a shortage of memory. The callback
301 The error callback function does not get the pcb passed to it as a
307 TCP provides a simple interface to the lower layers of the
323 Creates a new UDP pcb which can be used for UDP communication. The
324 pcb is not active until it has either been bound to a local address
325 or connected to a remote address.
334 Binds the pcb to a local address. The IP-address argument "ipaddr"
360 Specifies a callback function that should be called when a UDP
371 We assume a configuration using a single Ethernet netif and the
400 Note: you must call etharp_tmr at a ARP_TMR_INTERVAL (5 seconds) regular interval
422 Adds your network interface to the netif_list. Allocate a struct
423 netif and pass a pointer to this structure as the first argument.
427 The init function pointer must point to a initialization function for
453 Creates a new DHCP client for this interface on the first call.
467 craft an assembly function for this. RFC1071 is a good
472 if you're using a little-endian architecture.
478 a higher speed than the maximum wire-speed. If the
484 wake a high priority task that services your driver using a binary
488 For a production release it is recommended to set LWIP_STATS to 0.
492 For more optimization hints take a look at the lwIP wiki.