/**
* Go through timeout list (for this task only) and remove the first matching
* entry, even though the timeout has not triggered yet.
*
* @note This function only works as expected if there is only one timeout
* calling 'handler' in the list of timeouts.
*
* @param handler callback function that would be called by the timeout
* @param arg callback argument that would be passed to handler
*/
public void sys_untimeout(sys_timeout_handler handler, object arg)
{
sys_timeo prev_t, t;
if (next_timeout == null) {
return;
}
for (t = next_timeout, prev_t = null; t != null; prev_t = t, t = t.next) {
if ((t.h == handler) && (t.arg == arg)) {
/* We have a match */
/* Unlink from previous in list */
if (prev_t == null) {
next_timeout = t.next;
}
else {
prev_t.next = t.next;
}
/* If not the last one, add time of this one back to next */
if (t.next != null) {
t.next.time += t.time;
}
lwip.memp_free(memp_t.MEMP_SYS_TIMEOUT, t);
return;
}
}
return;
}
public void sys_timeout(int msecs, sys_timeout_handler handler, object arg)
#endif // LWIP_DEBUG_TIMERNAMES
{
sys_timeo timeout, t;
timeout = (sys_timeo)lwip.memp_malloc(memp_t.MEMP_SYS_TIMEOUT);
if (timeout == null) {
lwip.LWIP_ASSERT("sys_timeout: timeout != null, pool MEMP_SYS_TIMEOUT is empty", timeout != null);
return;
}
timeout.next = null;
timeout.h = handler;
timeout.arg = arg;
timeout.time = msecs;
#if LWIP_DEBUG_TIMERNAMES
timeout.handler_name = handler_name;
lwip.LWIP_DEBUGF(opt.TIMERS_DEBUG, "sys_timeout: {0} msecs={1} handler={2} arg={3}\n",
timeout, msecs, handler_name, arg));
#endif // LWIP_DEBUG_TIMERNAMES
if (next_timeout == null) {
next_timeout = timeout;
return;
}
if (next_timeout.time > msecs) {
next_timeout.time -= msecs;
timeout.next = next_timeout;
next_timeout = timeout;
}
else {
for (t = next_timeout; t != null; t = t.next) {
timeout.time -= t.time;
if (t.next == null || t.next.time > timeout.time) {
if (t.next != null) {
t.next.time -= timeout.time;
}
timeout.next = t.next;
t.next = timeout;
break;
}
}
}
}
/** * Create a one-shot timer (aka timeout). Timeouts are processed in the * following cases: * - while waiting for a message using sys_timeouts_mbox_fetch() * - by calling sys_check_timeouts() (NO_SYS==1 only) * * @param msecs time in milliseconds after that the timer should expire * @param handler callback function to call when msecs have elapsed * @param arg argument to pass to the callback function */ #if LWIP_DEBUG_TIMERNAMES public void sys_timeout_debug(uint msecs, sys_timeout_handler handler, object arg, const pointer handler_name)
