1 This file lists major changes between release versions that require
2 ports or applications to be changed. Use it to update a port or an
3 application written for an older version of lwIP to correctly work
9 * [Enter new changes just after this line - do not remove this line]
11 ++ Application changes:
13 * Replaced struct ip_addr by typedef ip_addr_t.
15 * Raw API: Changed the semantics of tcp_close() (since it was rather a
16 shutdown before): Now the application does *NOT* get any calls to the
17 recv callback after calling tcp_close() - this means that it also does
18 not get the NULL-pbuf which tells it the remote side has closed, too!
20 * Raw API: When calling tcp_abort() from a raw API TCP callback function,
21 make sure you return ERR_ABRT to prevent accessing unallocated memory.
22 (ERR_ABRT now means the applicaiton has called tcp_abort!)
24 * Renamed mem_realloc() to mem_trim() to prevent confusion with realloc()
26 * Netconn API: Changed netconn_receive() and netconn_accept() to return
27 err_t, not a pointer to new data/netconn.
29 * Socket API / LWIP_SO_RCVTIMEO: when accept() or recv() time out, they
30 now set errno to EWOULDBLOCK/EAGAIN, not ETIMEDOUT.
35 * Added 4 new files: def.c, timers.c, timers.h, tcp_impl.h
37 * Moved stack-internal parts of tcp.h to tcp_impl.h, tcp.h now only contains
38 the actual application programmer's API
40 * Separated timer implementation from sys.h/.c, moved to timers.h/.c
42 * Converted and semaphore functions to take pointers to sys_mbox_t/sys_sem_t;
44 * Converted sys_mbox_new/sys_sem_new to take pointers and return err_t;
46 * Added Mutex concept in sys_arch (define LWIP_COMPAT_MUTEX to let sys.h use
47 binary semaphores instead of mutexes - as before)
49 * Integrated loopif into netif.c - loopif does not have to be created by the
50 port any more, just define LWIP_HAVE_LOOPIF to 1.
52 * Netdb uses a memp pool for allocating memory when getaddrinfo() is called,
53 so MEMP_NUM_NETDB has to be set accordingly.
55 * Snmp-agent uses memp pools instead of the heap, so MEMP_NUM_SNMP_* have to
58 * Added define LWIP_RAND() for lwip-wide randomization (needs to be defined
59 in cc.h, e.g. used by igmp)
61 * Added printf-formatter X8_F to printf u8_t as hex
66 * initial version of this file