/// 等待所有任务处理完成
inline bool join_all(uint64_t milliseconds)
{
boost::timer bt;
while ( unfinished() > 0 )
{
if ((std::numeric_limits<uint64_t>::max)() != milliseconds
&& bt.elapsed() * CLOCKS_PER_SEC > milliseconds)
return false;
sys_sleep(1);
}
return true;
}
void UpwardIterator::advance()
{
do {
_index--;
if (_index < 0) {
Term* parentTerm = _block->owningTerm;
if (parentTerm == NULL) {
_block = NULL;
return;
}
_block = parentTerm->owningBlock;
_index = parentTerm->index;
if (_block == _stopAt)
_block = NULL;
if (_block == NULL)
return;
}
// repeat until we find a non NULL term
} while (unfinished() && current() == NULL);
}
