| 1 | #include <fstream.hfa>
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| 2 | #include <locks.hfa>
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| 3 | #include <thread.hfa>
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| 4 |
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| 5 | enum { num_blockers = 17, num_unblockers = 13 };
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| 6 |
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| 7 | void thrash() {
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| 8 | unsigned t[100];
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| 9 | for(i; 100) {
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| 10 | t[i] = 0xDEADBEEF;
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| 11 | }
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| 12 | }
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| 13 |
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| 14 | Semaphore0nary sem;
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| 15 |
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| 16 | const unsigned int num_blocks = 1625;
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| 17 |
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| 18 | thread Blocker {
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| 19 | size_t sum;
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| 20 | };
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| 21 | void main(Blocker & this);
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| 22 |
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| 23 | Blocker * from_thread($thread * t) {
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| 24 | Blocker & nullb = *(Blocker*)0p;
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| 25 | $thread & nullt = (thread&)nullb;
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| 26 | uintptr_t offset = (uintptr_t)&nullt;
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| 27 | uintptr_t address = ((uintptr_t)t) - offset;
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| 28 | return (Blocker*)address;
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| 29 | }
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| 30 |
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| 31 | void main(Blocker & this) {
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| 32 | $thread * me = active_thread();
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| 33 | Blocker * me1 = &this;
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| 34 | Blocker * me2 = from_thread(me);
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| 35 | if( me1 != me2 ) sout | "Bad casting!" | me1 | "vs" | me2;
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| 36 | this.sum = 0;
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| 37 | for(num_blocks) {
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| 38 | P(sem);
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| 39 | if(((thread&)this).seqable.next != 0p) sout | "Link not invalidated";
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| 40 | }
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| 41 | }
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| 42 |
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| 43 | const unsigned int num_unblocks = 2125;
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| 44 |
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| 45 | thread Unblocker {
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| 46 | size_t sum;
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| 47 | };
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| 48 |
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| 49 | void main(Unblocker & this) {
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| 50 | this.sum = 0;
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| 51 | unsigned me = (unsigned)(uintptr_t)&this;
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| 52 | for(num_unblocks) {
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| 53 | $thread * t = V(sem, false);
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| 54 | Blocker * b = from_thread(t);
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| 55 | b->sum += me;
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| 56 | this.sum += (unsigned)(uintptr_t)b;
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| 57 | unpark(t);
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| 58 | yield(random(10));
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| 59 | }
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| 60 | }
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| 61 |
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| 62 | int main() {
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| 63 | size_t usum = 0;
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| 64 | size_t bsum = 0;
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| 65 |
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| 66 | if((num_unblocks * num_unblockers) != (num_blocks * num_blockers)) sout | "Mismatched Operations: " | (num_unblocks * num_unblockers) | "vs" | (num_blocks * num_blockers);
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| 67 |
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| 68 | sout | "Starting";
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| 69 | {
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| 70 | Blocker blockers [num_blockers ];
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| 71 | Unblocker unblockers[num_unblockers];
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| 72 |
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| 73 | for(i;num_blockers) {
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| 74 | for(num_blocks)
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| 75 | usum += (unsigned)(uintptr_t)&blockers[i];
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| 76 | }
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| 77 |
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| 78 | for(i;num_unblockers) {
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| 79 | for(num_unblocks)
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| 80 | bsum += (unsigned)(uintptr_t)&unblockers[i];
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| 81 | }
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| 82 |
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| 83 | for(i;num_blockers) {
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| 84 | bsum -= join(blockers[i]).sum;
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| 85 | }
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| 86 |
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| 87 | for(i;num_unblockers) {
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| 88 | usum -= join(unblockers[i]).sum;
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| 89 | }
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| 90 | }
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| 91 | sout | "Done!";
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| 92 | if(bsum == 0 && usum == 0) sout | "Match!";
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| 93 | else sout | "No Match!" | usum | "/" | bsum;
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| 94 | }
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