void PendingChecks::runChecks()
{
DynMutex::Guard guard = m_mutex.lock();
Checks::iterator it = m_checks.begin();
bool removed = false;
while (it != m_checks.end()) {
bool cont;
try {
cont = (**it)();
} catch (...) {
Exception::handle(HANDLE_EXCEPTION_FATAL);
// keep compiler happy
cont = false;
}
if (!cont) {
// Done with this check
Checks::iterator next = it;
++next;
m_checks.erase(it);
it = next;
removed = true;
} else {
++it;
}
}
// Tell blockOnCheck() calls that they may have completed.
if (removed) {
m_cond.signal();
}
}
void PendingChecks::blockOnCheck(const boost::function<bool ()> &check, bool checkFirst)
{
DynMutex::Guard guard = m_mutex.lock();
// When we get here, the conditions for returning may already have
// been met. Check before sleeping. If we need to continue, then
// holding the mutex ensures that the main thread will run the
// check on the next iteration.
if (!checkFirst || check()) {
m_checks.insert(&check);
if (!checkFirst) {
// Must wake up the main thread from its g_main_context_iteration.
g_main_context_wakeup(g_main_context_default());
}
do {
m_cond.wait(m_mutex);
} while (m_checks.find(&check) != m_checks.end());
}
}
void finish() {
for (Checks::iterator i = checks.begin(), e = checks.end(); i != e; ++i) i->finish();
checks.clear();
}
void start() {
for (Checks::iterator i = checks.begin(), e = checks.end(); i != e; ++i) i->start();
}