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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/vespalib/util/blockingthreadstackexecutor.h>
#include <vespa/vespalib/util/executor.h>
#include <atomic>
using namespace vespalib;
std::atomic<size_t> tasks_run;
size_t do_stuff(size_t size) {
size_t value = 0;
for (size_t i = 0; i < size; ++i) {
for (size_t j = 0; j < i; ++j) {
for (size_t k = 0; k < j; ++k) {
value += (i * j * k);
value *= (i + j + k);
}
}
}
return value;
}
struct MyTask : Executor::Task {
size_t size;
size_t data;
MyTask(size_t size_in) : size(size_in), data(0) {}
void run() override {
data += do_stuff(size);
++tasks_run;
data += do_stuff(size);
data += do_stuff(size);
}
};
TEST_MT_F("stress test block thread stack executor", 8, BlockingThreadStackExecutor(4, 1000))
{
size_t loop_cnt = 100;
for (size_t i = 0; i < loop_cnt; ++i) {
auto result = f1.execute(std::make_unique<MyTask>(thread_id));
EXPECT_TRUE(result.get() == nullptr);
}
TEST_BARRIER();
if (thread_id == 0) {
f1.shutdown().sync();
}
TEST_BARRIER();
EXPECT_EQUAL((loop_cnt * num_threads), tasks_run);
}
TEST_MAIN() { TEST_RUN_ALL(); }
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