48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
#include "common.h"
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#define THREADS_NO 8
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constexpr size_t key_range = 1e5;
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constexpr size_t op_per_thread = 1e6;
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constexpr size_t no_insert_for_one_delete = 1;
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// This test checks remove method under pressure.
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// Each thread removes it's own data. So removes are disjoint.
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// Calls of remove method are interleaved with insert calls.
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int main()
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{
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memory_check(THREADS_NO, [] {
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skiplist_t skiplist;
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auto futures = run<std::vector<size_t>>(
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THREADS_NO, skiplist, [](auto acc, auto index) {
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auto rand = rand_gen(key_range);
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auto rand_op = rand_gen_bool(no_insert_for_one_delete);
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size_t downcount = op_per_thread;
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std::vector<size_t> owned;
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auto inserter = insert_try<size_t, size_t>(acc, downcount, owned);
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do {
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if (owned.size() != 0 && rand_op()) {
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auto rem = rand() % owned.size();
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permanent_assert(acc.remove(owned[rem]), "Owned data removed");
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owned.erase(owned.begin() + rem);
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downcount--;
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} else {
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inserter(rand(), index);
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}
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} while (downcount > 0);
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check_present_same(acc, index, owned);
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return owned;
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});
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auto accessor = skiplist.access();
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size_t count = 0;
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for (auto &owned : collect(futures)) {
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check_present_same(accessor, owned);
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count += owned.second.size();
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}
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check_size(accessor, count);
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});
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}
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