system/kernel/kernel_daemon.cpp

22 // But since the kernel daemon is documented to be very inaccurate, this
26 struct daemon : DoublyLinkedListLinkImpl<struct daemon> {
35 typedef DoublyLinkedList<struct daemon> DaemonList;
50 			struct daemon*		_NextDaemon(struct daemon& marker);
90 	struct ::daemon* daemon = new(std::nothrow) (struct ::daemon);
91 	if (daemon == NULL)
94 	daemon->function = function;
95 	daemon->arg = arg;
96 	daemon->frequency = frequency;
97 	daemon->executing = false;
102 		// we try to balance the work-load for each daemon run
113 		daemon->offset = num % frequency;
115 		daemon->offset = 0;
117 	fDaemons.Add(daemon);
129 	// search for the daemon and remove it from the list
131 		struct daemon* daemon = iterator.Next();
133 		if (daemon->function == function && daemon->arg == arg) {
137 				while (daemon->executing) {
152 			delete daemon;
167 		struct daemon* daemon = iterator.Next();
173 			(addr_t)daemon->function, NULL, &symbol, &imageName, &exactMatch);
178 			kprintf("\t%s:%s (%p)", imageName, symbol, daemon->function);
180 			kprintf("\t%p", daemon->function);
182 		kprintf(", arg %p%s\n", daemon->arg,
183 			daemon->executing ? " (running) " : "");
195 struct daemon*
196 KernelDaemon::_NextDaemon(struct daemon& marker)
198 	struct daemon* daemon;
202 		daemon = fDaemons.Head();
204 		daemon = fDaemons.GetNext(&marker);
208 	marker.arg = daemon;
210 	if (daemon != NULL)
211 		fDaemons.InsertAfter(daemon, &marker);
213 	return daemon;
220 	struct daemon marker;
228 		// iterate through the list and execute each daemon if needed
229 		while (struct daemon* daemon = _NextDaemon(marker)) {
230 			daemon->executing = true;
233 			if (((iteration + daemon->offset) % daemon->frequency) == 0)
234 				daemon->function(daemon->arg, iteration);
237 			daemon->executing = false;
316 	if (sKernelDaemon.Init("kernel daemon") != B_OK)
317 		panic("kernel_daemon_init(): failed to init kernel daemon");