memgraph/tests/concurrent/sl_multiiterator.cpp
Kruno Tomola Fabro e16b576a6e Added support for multiset.
Minor fixes to tests.

MultiIterator & MultiMap work.
There are some unfinished optimizations in the code commented.

All tests pass. Some common parts from tests have been moved.
2016-08-02 13:23:39 +01:00

56 lines
1.7 KiB
C++

#include "common.h"
#define THREADS_NO 8
constexpr size_t key_range = 1e4;
constexpr size_t op_per_thread = 1e5;
// Depending on value there is a possiblity of numerical overflow
constexpr size_t max_number = 10;
constexpr size_t no_insert_for_one_delete = 1;
// This test checks MultiIterator from multimap.
// Each thread removes random data. So removes are joint.
// Calls of remove method are interleaved with insert calls which always
// succeed.
int main()
{
memory_check(THREADS_NO, [] {
multimap_t skiplist;
auto futures = run<std::vector<long long>>(
THREADS_NO, skiplist, [](auto acc, auto index) {
auto rand = rand_gen(key_range);
auto rand_op = rand_gen_bool(no_insert_for_one_delete);
long long downcount = op_per_thread;
std::vector<long long> set(key_range, 0);
do {
size_t num = rand();
auto data = num % max_number;
if (rand_op()) {
if (acc.remove(num)) {
downcount--;
set[num]--;
}
} else {
acc.insert(num, data);
downcount--;
set[num]++;
}
} while (downcount > 0);
return set;
});
long set[key_range] = {0};
for (auto &data : collect(futures)) {
for (int i = 0; i < key_range; i++) {
set[i] += data.second[i];
}
}
auto accessor = skiplist.access();
check_multi_iterator(accessor, key_range, set);
check_order<multimap_t>(accessor);
});
}