///按指定的分片大小bitfield更新rangefield.
// @param bf为指定的bitfield.
// @param piece_size是指定的分片大小.
inline void bitfield_to_range(const bitfield& bf, int piece_size)
{
#ifndef AVHTTP_DISABLE_THREAD
boost::mutex::scoped_lock lock(*m_mutex);
#endif
m_ranges.clear();
boost::int64_t left = 0;
boost::int64_t right = 0;
bool left_record = false;
int index = 0;
for (bitfield::const_iterator i = bf.begin(); i != bf.end(); i++, index++)
{
BOOST_ASSERT(index * piece_size < m_size);
if (*i && !left_record)
{
left = index * piece_size;
right = left + piece_size;
left_record = true;
continue;
}
if (*i && left_record)
{
right += piece_size;
}
if (left_record && !(*i))
{
// 得到区间.
right = (std::min)(right, m_size);
m_ranges[left] = right;
left_record = false;
}
}
if (left_record)
{
right = (std::min)(right, m_size);
m_ranges[left] = right;
left_record = false;
}
m_need_merge = true;
}
void test_iterators(bitfield& test1)
{
test1.set_all();
int num = 0;
std::printf("expecting %d ones\n", test1.size());
for (bitfield::const_iterator i = test1.begin(); i != test1.end(); ++i)
{
std::printf("%d", *i);
TEST_EQUAL(*i, true);
num += *i;
}
std::printf("\n");
TEST_EQUAL(num, test1.size());
TEST_EQUAL(num, test1.count());
}