Implement timedwait

[c11tester.git] / fuzzer.cc

diff --git a/fuzzer.cc b/fuzzer.cc
index f3be1d3ff3cd1630398cb3671ce8f5ba241fc8f3..7e488ce85fe84dbf6126b81b90aa9c48f8bf2c6f 100644 (file)
--- a/fuzzer.cc
+++ b/fuzzer.cc
@@ -58,10 +58,28 @@ bool Fuzzer::waitShouldFail(ModelAction * wait)
 
 bool Fuzzer::waitShouldWakeUp(const ModelAction * wait)
 {
-       uint64_t time_to_expire = wait->get_time();
        struct timespec currtime;
        clock_gettime(CLOCK_MONOTONIC, &currtime);
        uint64_t lcurrtime = currtime.tv_sec * 1000000000 + currtime.tv_nsec;
 
-       return (time_to_expire < lcurrtime);
+       return (wait->get_time() < lcurrtime);
+}
+
+bool Fuzzer::randomizeWaitTime(ModelAction * timed_wait)
+{
+       uint64_t abstime = timed_wait->get_time();
+       struct timespec currtime;
+       clock_gettime(CLOCK_MONOTONIC, &currtime);
+       uint64_t lcurrtime = currtime.tv_sec * 1000000000 + currtime.tv_nsec;
+       if (abstime <= lcurrtime)
+               return false;
+
+       // Shorten wait time
+       if ((random() & 1) == 0) {
+               uint64_t tmp = abstime - lcurrtime;
+               uint64_t time_to_expire = random() % tmp + lcurrtime;
+               timed_wait->set_time(time_to_expire);
+       }
+
+       return true;
 }