void operator () ()
{
if (call(manager, LOOKUP_PROCESS,
reinterpret_cast<char *>(&watcher), sizeof(watcher)) != OK)
fatal("failed to deallocate resources associated with Watcher");
WatcherProcess *process =
*reinterpret_cast<WatcherProcess **>(const_cast<char *>(body(NULL)));
send(process->self(), TERMINATE);
wait(process->self());
delete process;
}
bool destroy(Watcher* watcher)
{
if (processes.count(watcher) > 0) {
WatcherProcess* process = processes[watcher];
processes.erase(watcher);
process::terminate(process->self());
process::wait(process->self());
delete process;
return true;
}
return false;
}
void operator () ()
{
while (true) {
switch (receive()) {
case REGISTER: {
WatcherProcess *process =
*reinterpret_cast<WatcherProcess **>(const_cast<char *>(body(NULL)));
Watcher *watcher = process->watcher;
assert(watchers.find(watcher) == watchers.end());
watchers[watcher] = process;
send(from(), OK);
break;
}
case UNREGISTER: {
WatcherProcess *process =
*reinterpret_cast<WatcherProcess **>(const_cast<char *>(body(NULL)));
Watcher *watcher = process->watcher;
assert(watchers.find(watcher) != watchers.end());
watchers.erase(watcher);
send(from(), OK);
break;
}
case LOOKUP_PROCESS: {
Watcher *watcher =
*reinterpret_cast<Watcher **>(const_cast<char *>(body(NULL)));
if (watchers.find(watcher) != watchers.end()) {
WatcherProcess *process = watchers[watcher];
send(from(), OK, reinterpret_cast<char *>(&process), sizeof(process));
} else {
send(from(), ERROR);
}
break;
}
case LOOKUP_PID: {
Watcher *watcher =
*reinterpret_cast<Watcher **>(const_cast<char *>(body(NULL)));
if (watchers.find(watcher) != watchers.end()) {
WatcherProcess *process = watchers[watcher];
const PID &pid = process->self();
send(from(), OK, reinterpret_cast<const char *>(&pid), sizeof(pid));
} else {
send(from(), ERROR);
}
break;
}
}
}
}
