bool ServerCollect::touch(bool& promote, int32_t& count, const double average_used_capacity)
{
bool ret = ((is_report_block_complete() || promote) /*&& !is_full()*/ && count > 0);
if (!ret)
{
count = 0;
}
else
{
BlockCollect* invalid_blocks[1024];
ArrayHelper<BlockCollect*> helper(1024, invalid_blocks);
RWLock::Lock lock(mutex_, WRITE_LOCKER);
int32_t current = hold_master_->size();
TBSYS_LOG(DEBUG, "%s touch current %d, writable size: %d", CNetUtil::addrToString(id()).c_str(),current, writable_->size());
if (current >= SYSPARAM_NAMESERVER.max_write_file_count_)
{
count = 0;
}
else
{
count = std::min(count, (SYSPARAM_NAMESERVER.max_write_file_count_ - current));
if (count <= 0)
{
TBSYS_LOG(DEBUG, "%s", "there is any block need add into hold_master_");
}
else
{
int32_t actual = 0;
double use_capacity_ratio = use_capacity_ / total_capacity_;
double max_average_use_capacity_ratio = average_used_capacity * AVERAGE_USED_CAPACITY_MULTIPLE;
BlockCollect* block = NULL;
TfsVector<BlockCollect*>::iterator where;
while ((!writable_->empty())
&& (writable_index_ < writable_->size())
&& (actual < count))
{
block = writable_->at(writable_index_);
++writable_index_;
if (!block->is_writable())
{
if (block->is_full())
helper.push_back(block);
continue;
}
if (!is_equal_group(block->id()))
{
helper.push_back(block);
continue;
}
if (!block->is_master(this))
continue;
where = hold_master_->find(block);
if (hold_master_->end() == where)
{
++actual;
hold_master_->push_back(block);
}
}
if (writable_index_ >= writable_->size())
writable_index_ = 0;
for (int32_t i = 0; i < helper.get_array_index(); ++i)
{
block = *helper.at(i);
writable_->erase(block);
}
if (!is_full() && ((use_capacity_ratio < max_average_use_capacity_ratio)
|| max_average_use_capacity_ratio <= PERCENTAGE_MIN))
{
count -= actual;
}
else
{
count = 0;
}
}
}
}
return ret;
}
