bool
CQ::ReapInquiryWaitAny(uint16_t ms, uint16_t &numCE, uint32_t &isrCount)
{
struct timeval initial;
if (gettimeofday(&initial, &TZ_NULL) != 0) {
LOG_DBG("Cannot retrieve system time");
throw exception();
}
while (CalcTimeout(ms, initial) == false) {
if ((numCE = ReapInquiry(isrCount)) != 0) {
return true;
}
}
LOG_ERR("Timed out waiting %d ms for CE's in CQ %d", ms, GetQId());
return false;
}
void Selector::Run()
{
while(m_loop)
{
struct timespec timeout;
fd_set freads = m_freads;
fd_set fwrites = m_fwrites;
fd_set fexcept = m_fexcept;
CalcTimeout(&timeout);
int ret = pselect(m_maxfd + 1, &freads, &fwrites, &fexcept, &timeout, NULL);
if (ret < 0)
{
switch(errno)
{
case EINTR:
continue;
break;
case EBADF: /* It is possible to have a bad fd inside the set because it just changed after read took a copy of the set */
m_err_ebadf++;
continue;
break;
default:
abort();
break;
}
}
do {
ScopedLock lock = ScopedLock(&m_mutex);
m_modified = false;
//Check fd_set's
for(std::map<int, ISelectable *>::iterator it = m_map.begin(); it != m_map.end(); it++)
{
int fd = it->first;
bool work = false;
if (FD_ISSET(fd, &freads))
{
it->second->DoRead(this);
if (m_modified)
goto skip_to_end;
work = true;
}
if (FD_ISSET(fd, &fwrites))
{
it->second->DoWrite(this);
if (m_modified)
goto skip_to_end;
work = true;
}
if (FD_ISSET(fd, &fexcept))
{
it->second->DoExcept(this);
if (m_modified)
goto skip_to_end;
work = true;
}
if (work)
UpdateMap(fd);
}
struct timespec now;
if (clock_gettime(CLOCK_MONOTONIC, &now) < 0)
abort();
for(std::map<int, struct timespec>::iterator it = m_timeout.begin(); it != m_timeout.end(); it++)
{
if (Time::IsLess(&it->second, &now))
{
m_map[it->first]->DoTimeout(this);
if (m_modified)
goto skip_to_end;
UpdateMap(it->first);
}
}
} while(0);
skip_to_end:
ReadControl();
}
}
