3 #include <cds/gc/dhp.h>
5 #include <cds/sync/seqlock.h>
6 #include <cds_test/stress_test.h>
14 typedef cds_others::SeqLock SeqLock;
16 static size_t s_nSeqLockReaderWriterThreadCount = 6;
17 static size_t s_nSeqLockPassCount = 2000000;
19 class SeqLockTest : public cds_test::stress_fixture {
22 static SeqLock *seqlock;
23 static const int kReaderThreads = 0;
24 static const int kWriterThreads = 0;
25 static const int kWriterPercentage = 15;
27 static void SetUpTestCase() {
28 cds_test::config const &cfg = get_config("Misc");
29 GetConfig(SeqLockReaderWriterThreadCount);
30 GetConfig(SeqLockPassCount);
33 static void ReaderThread() {}
35 static void WriterThread() {}
37 static void ReaderWriterThread(int write_percentage) {
38 for (int i = 0; i < s_nSeqLockPassCount; i++) {
39 if (rand(100) < write_percentage) {
40 sum += seqlock->read();
42 seqlock->write(rand(10));
49 SeqLock *SeqLockTest::seqlock;
51 TEST_F(SeqLockTest, BasicReadWriter) {
52 seqlock = new SeqLock();
53 for (int write_percentage = 5; write_percentage < 50; write_percentage += 5) {
54 std::thread *threads = new std::thread[s_nSeqLockReaderWriterThreadCount];
55 for (size_t i = 0; i < s_nSeqLockReaderWriterThreadCount; i++) {
56 threads[i] = std::thread(ReaderWriterThread, write_percentage);
58 for (int i = 0; i < s_nSeqLockReaderWriterThreadCount; i++) {