bool
KRT2Device::Send(const uint8_t *msg, unsigned msg_size,
OperationEnvironment &env)
{
//! Number of tries to send a message
unsigned retries = NR_RETRIES;
assert(msg_size > 0);
do {
response_mutex.Lock();
response = NO_RSP;
response_mutex.Unlock();
// Send the message
if (!port.FullWrite(msg, msg_size, env, CMD_TIMEOUT))
return false;
// Wait for the response
response_mutex.Lock();
rx_cond.timed_wait(response_mutex, CMD_TIMEOUT);
auto _response = response;
response_mutex.Unlock();
if (_response == ACK)
// ACK received, finish
return true;
// No ACK received, retry
retries--;
} while (retries);
return false;
}
const_iterator Wait(const K &key, OperationEnvironment &env,
TimeoutClock timeout) {
while (true) {
auto i = map.find(key);
if (i != map.end() && !i->second.old)
return const_iterator(i);
if (env.IsCancelled())
return end();
int remaining = timeout.GetRemainingSigned();
if (remaining <= 0)
return end();
cond.timed_wait(*this, remaining);
}
}
bool CondTime::wait(Mutex& mutex, Cond& cond)
{
return cond.timed_wait(mutex,timepoint);
}