source: tests/unified_locking/fast.cfa @ 07033ce

jacob/cs343-translationnew-ast-unique-expr
Last change on this file since 07033ce was 07033ce, checked in by Thierry Delisle <tdelisle@…>, 7 months ago

Even more work on removing any possible integer overflow in fast lock test

  • Property mode set to 100644
File size: 989 bytes
Line 
1#include <fstream.hfa>
2#include <locks.hfa>
3#include <thread.hfa>
4
5const unsigned int num_times = 50;
6
7struct MutexObj {
8        fast_lock l;
9        $thread * id;
10        uint32_t sum;
11};
12
13MutexObj mo;
14
15void trash() {
16        unsigned t[100];
17        for(i; 100) {
18                t[i] = 0xDEADBEEF;
19        }
20}
21
22uint32_t cs() {
23        $thread * me = active_thread();
24        uint32_t value;
25        lock(mo.l);
26        {
27                uint32_t tsum = mo.sum;
28                mo.id = me;
29                yield(random(5));
30                value = ((uint32_t)random()) ^ ((uint32_t)me);
31                if(mo.id != me) sout | "Intruder!";
32                mo.sum = tsum + value;
33        }
34        unlock(mo.l);
35        return value;
36}
37
38thread LockCheck {
39        uint32_t sum;
40};
41
42void main(LockCheck & this) {
43        this.sum = 0;
44        for(num_times) {
45                trash();
46                this.sum += cs();
47                trash();
48                yield(random(10));
49        }
50}
51
52int main() {
53        uint32_t sum = -32;
54        mo.sum = -32;
55        processor p[2];
56        sout | "Starting";
57        {
58                LockCheck checkers[13];
59                for(i;13) {
60                        sum += join(checkers[i]).sum;
61                }
62        }
63        sout | "Done!";
64        if(sum == mo.sum) sout | "Match!";
65        else sout | "No Match!" | sum | "vs" | mo.sum;
66}
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