54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
#include <vector>
|
|
#include <span>
|
|
#include <thread>
|
|
#include <mutex>
|
|
|
|
template<typename T, typename C>
|
|
class MergeSorterMT {
|
|
|
|
C comp;
|
|
std::recursive_mutex mut;
|
|
|
|
auto merge(std::span<T> &output, std::span<T> left, std::span<T> right) -> void {
|
|
std::vector<T> buf;
|
|
buf.reserve(left.size() + right.size());
|
|
|
|
auto l = left.begin();
|
|
auto r = right.begin();
|
|
auto o = buf.begin();
|
|
|
|
while (l < left.end() && r < right.end()) {
|
|
if (cmp(*l, *r)) {
|
|
buf.insert(o, *l);
|
|
l++;
|
|
} else {
|
|
buf.insert(o, *r);
|
|
r++;
|
|
}
|
|
o++;
|
|
}
|
|
while (l < left.end()) {
|
|
buf.insert(o, *l);
|
|
o++;
|
|
l++;
|
|
}
|
|
while (r < right.end()) {
|
|
buf.insert(o, *r);
|
|
o++;
|
|
r++;
|
|
}
|
|
|
|
{
|
|
std::lock_guard<std::recursive_mutex> lock(mut);
|
|
std::move(buf.begin(), buf.end(), output.begin());
|
|
}
|
|
}
|
|
|
|
auto split(std::vector<T> &data, C cmp, int depth, int &max_depth, std::mutex &mut) -> void {
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
}; |