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prepare for overriding current timeout implementation: all stack-internal caclic timers are avaliable in the lwip_cyclic_timers array
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@ -6,6 +6,10 @@ HISTORY
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++ New features:
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2016-04-05: Simon Goldschmidt:
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* timers.h/.c: prepare for overriding current timeout implementation: all
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stack-internal caclic timers are avaliable in the lwip_cyclic_timers array
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2016-03-23: Simon Goldschmidt
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* tcp: call accept-callback with ERR_MEM when allocating a pcb fails on
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passive open to inform the application about this error
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@ -44,8 +44,6 @@
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#include "lwip/timers.h"
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#include "lwip/priv/tcp_priv.h"
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#if LWIP_TIMERS
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#include "lwip/def.h"
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#include "lwip/memp.h"
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#include "lwip/priv/tcpip_priv.h"
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@ -62,6 +60,54 @@
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#include "lwip/sys.h"
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#include "lwip/pbuf.h"
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#if LWIP_DEBUG_TIMERNAMES
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#define HANDLER(x) x, #x
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#else /* LWIP_DEBUG_TIMERNAMES */
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#define HANDLER(x) x
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#endif /* LWIP_DEBUG_TIMERNAMES */
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/** This array contains all stack-internal cyclic timers. To get the number of
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* timers, use LWIP_ARRAYSIZE() */
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struct lwip_cyclic_timer lwip_cyclic_timers[] = {
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#if LWIP_TCP
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/* The TCP timer is a special case: it does not have to run always and
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is triggered to start from TCP using tcp_timer_needed() */
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{TCP_TMR_INTERVAL, HANDLER(tcp_tmr)},
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#endif /* LWIP_TCP */
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#if LWIP_IPV4
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#if IP_REASSEMBLY
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{IP_TMR_INTERVAL, HANDLER(ip_reass_tmr)},
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#endif /* IP_REASSEMBLY */
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#if LWIP_ARP
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{ARP_TMR_INTERVAL, HANDLER(etharp_tmr)},
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#endif /* LWIP_ARP */
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#if LWIP_DHCP
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{DHCP_COARSE_TIMER_MSECS, HANDLER(dhcp_coarse_tmr)},
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{DHCP_FINE_TIMER_MSECS, HANDLER(dhcp_fine_tmr)},
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#endif /* LWIP_DHCP */
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#if LWIP_AUTOIP
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{AUTOIP_TMR_INTERVAL, HANDLER(autoip_tmr)},
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#endif /* LWIP_AUTOIP */
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#if LWIP_IGMP
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{IGMP_TMR_INTERVAL, HANDLER(igmp_tmr)},
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#endif /* LWIP_IGMP */
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#endif /* LWIP_IPV4 */
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#if LWIP_DNS
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{DNS_TMR_INTERVAL, HANDLER(dns_tmr)},
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#endif /* LWIP_DNS */
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#if LWIP_IPV6
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{ND6_TMR_INTERVAL, HANDLER(nd6_tmr)},
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#if LWIP_IPV6_REASS
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{IP6_REASS_TMR_INTERVAL, HANDLER(ip6_reass_tmr)},
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#endif /* LWIP_IPV6_REASS */
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#if LWIP_IPV6_MLD
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{MLD6_TMR_INTERVAL, HANDLER(mld6_tmr)},
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#endif /* LWIP_IPV6_MLD */
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#endif /* LWIP_IPV6 */
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};
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#if LWIP_TIMERS
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/** The one and only timeout list */
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static struct sys_timeo *next_timeout;
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#if NO_SYS
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@ -111,199 +157,30 @@ tcp_timer_needed(void)
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}
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#endif /* LWIP_TCP */
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#if LWIP_IPV4
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#if IP_REASSEMBLY
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/**
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* Timer callback function that calls ip_reass_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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ip_reass_timer(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: ip_reass_tmr()\n"));
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ip_reass_tmr();
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sys_timeout(IP_TMR_INTERVAL, ip_reass_timer, NULL);
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}
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#endif /* IP_REASSEMBLY */
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#if LWIP_ARP
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/**
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* Timer callback function that calls etharp_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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arp_timer(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: etharp_tmr()\n"));
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etharp_tmr();
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sys_timeout(ARP_TMR_INTERVAL, arp_timer, NULL);
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}
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#endif /* LWIP_ARP */
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#if LWIP_DHCP
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/**
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* Timer callback function that calls dhcp_coarse_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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dhcp_timer_coarse(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: dhcp_coarse_tmr()\n"));
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dhcp_coarse_tmr();
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sys_timeout(DHCP_COARSE_TIMER_MSECS, dhcp_timer_coarse, NULL);
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}
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/**
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* Timer callback function that calls dhcp_fine_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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dhcp_timer_fine(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: dhcp_fine_tmr()\n"));
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dhcp_fine_tmr();
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sys_timeout(DHCP_FINE_TIMER_MSECS, dhcp_timer_fine, NULL);
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}
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#endif /* LWIP_DHCP */
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#if LWIP_AUTOIP
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/**
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* Timer callback function that calls autoip_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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autoip_timer(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: autoip_tmr()\n"));
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autoip_tmr();
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sys_timeout(AUTOIP_TMR_INTERVAL, autoip_timer, NULL);
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}
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#endif /* LWIP_AUTOIP */
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#if LWIP_IGMP
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/**
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* Timer callback function that calls igmp_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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igmp_timer(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: igmp_tmr()\n"));
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igmp_tmr();
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sys_timeout(IGMP_TMR_INTERVAL, igmp_timer, NULL);
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}
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#endif /* LWIP_IGMP */
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#endif /* LWIP_IPV4 */
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#if LWIP_DNS
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/**
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* Timer callback function that calls dns_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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dns_timer(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: dns_tmr()\n"));
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dns_tmr();
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sys_timeout(DNS_TMR_INTERVAL, dns_timer, NULL);
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}
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#endif /* LWIP_DNS */
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#if LWIP_IPV6
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/**
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* Timer callback function that calls nd6_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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nd6_timer(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: nd6_tmr()\n"));
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nd6_tmr();
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sys_timeout(ND6_TMR_INTERVAL, nd6_timer, NULL);
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}
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#if LWIP_IPV6_REASS
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/**
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* Timer callback function that calls ip6_reass_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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ip6_reass_timer(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: ip6_reass_tmr()\n"));
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ip6_reass_tmr();
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sys_timeout(IP6_REASS_TMR_INTERVAL, ip6_reass_timer, NULL);
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}
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#endif /* LWIP_IPV6_REASS */
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#if LWIP_IPV6_MLD
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/**
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* Timer callback function that calls mld6_tmr() and reschedules itself.
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*
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* @param arg unused argument
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*/
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static void
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mld6_timer(void *arg)
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cyclic_timer(void *arg)
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{
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LWIP_UNUSED_ARG(arg);
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: mld6_tmr()\n"));
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mld6_tmr();
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sys_timeout(MLD6_TMR_INTERVAL, mld6_timer, NULL);
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struct lwip_cyclic_timer* cyclic = (struct lwip_cyclic_timer*)arg;
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#if LWIP_DEBUG_TIMERNAMES
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LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: %s()\n", cyclic->handler_name));
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#endif
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cyclic->handler();
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sys_timeout(cyclic->interval_ms, cyclic_timer, arg);
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}
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#endif /* LWIP_IPV6_MLD */
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#endif /* LWIP_IPV6 */
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/** Initialize this module */
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void sys_timeouts_init(void)
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{
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#if LWIP_IPV4
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#if IP_REASSEMBLY
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sys_timeout(IP_TMR_INTERVAL, ip_reass_timer, NULL);
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#endif /* IP_REASSEMBLY */
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#if LWIP_ARP
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sys_timeout(ARP_TMR_INTERVAL, arp_timer, NULL);
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#endif /* LWIP_ARP */
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#if LWIP_DHCP
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sys_timeout(DHCP_COARSE_TIMER_MSECS, dhcp_timer_coarse, NULL);
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sys_timeout(DHCP_FINE_TIMER_MSECS, dhcp_timer_fine, NULL);
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#endif /* LWIP_DHCP */
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#if LWIP_AUTOIP
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sys_timeout(AUTOIP_TMR_INTERVAL, autoip_timer, NULL);
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#endif /* LWIP_AUTOIP */
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#if LWIP_IGMP
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sys_timeout(IGMP_TMR_INTERVAL, igmp_timer, NULL);
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#endif /* LWIP_IGMP */
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#endif /* LWIP_IPV4 */
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#if LWIP_DNS
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sys_timeout(DNS_TMR_INTERVAL, dns_timer, NULL);
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#endif /* LWIP_DNS */
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#if LWIP_IPV6
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sys_timeout(ND6_TMR_INTERVAL, nd6_timer, NULL);
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#if LWIP_IPV6_REASS
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sys_timeout(IP6_REASS_TMR_INTERVAL, ip6_reass_timer, NULL);
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#endif /* LWIP_IPV6_REASS */
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#if LWIP_IPV6_MLD
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sys_timeout(MLD6_TMR_INTERVAL, mld6_timer, NULL);
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#endif /* LWIP_IPV6_MLD */
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#endif /* LWIP_IPV6 */
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size_t i;
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/* tcp_tmr() at index 0 is started on demand */
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for (i = 1; i < LWIP_ARRAYSIZE(lwip_cyclic_timers); i++) {
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sys_timeout(lwip_cyclic_timers[i].interval_ms, cyclic_timer, &lwip_cyclic_timers[i]);
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}
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#if NO_SYS
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/* Initialise timestamp for sys_check_timeouts */
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@ -35,10 +35,13 @@
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#include "lwip/opt.h"
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/* Timers are not supported when NO_SYS==1 and NO_SYS_NO_TIMERS==1 */
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/** Timers are not supported when NO_SYS==1 and NO_SYS_NO_TIMERS==1.
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* Timer support can be disabled when cyclic timers are implemented
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* differently (use lwip_cyclic_timers array)
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*/
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#ifndef LWIP_TIMERS
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#define LWIP_TIMERS (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS))
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#if LWIP_TIMERS
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#endif
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#include "lwip/err.h"
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#if !NO_SYS
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@ -57,6 +60,26 @@ extern "C" {
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#endif /* LWIP_DEBUG*/
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#endif
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/** Function prototype for a stack-internal timer function that has to be
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* called at a defined interval */
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typedef void (* lwip_cyclic_timer_handler)(void);
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/** This struct contains information about a stack-internal timer function
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that has to be called at a defined interval */
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struct lwip_cyclic_timer {
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u32_t interval_ms;
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lwip_cyclic_timer_handler handler;
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#if LWIP_DEBUG_TIMERNAMES
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const char* handler_name;
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#endif /* LWIP_DEBUG_TIMERNAMES */
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};
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/** This array contains all stack-internal cyclic timers. To get the number of
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* timers, use LWIP_ARRAYSIZE() */
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extern struct lwip_cyclic_timer lwip_cyclic_timers[];
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#if LWIP_TIMERS
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/** Function prototype for a timeout callback function. Register such a function
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* using sys_timeout().
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*
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@ -93,9 +116,10 @@ void sys_timeouts_mbox_fetch(sys_mbox_t *mbox, void **msg);
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#endif /* NO_SYS */
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#endif /* LWIP_TIMERS */
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_TIMERS */
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#endif /* LWIP_HDR_TIMERS_H */
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