1.23
2.0
acw/focus-triggers
main
test-branch
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Last change
on this file since 4540352 was 8d512ae, checked in by John Edenhofner <johneden@…>, 12 years ago |
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Changed location of pthread.cvh, and updated files to use pthread.h (which includes pthread.cvh). New translations from pthread-atomic, and updated pthread.cvh
git-svn-id: svn://vsl.cis.udel.edu/civl/trunk@1092 fb995dde-84ed-4084-dfe6-e5aef3e2452c
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Property mode
set to
100644
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File size:
1.3 KB
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| 1 | /* Testcase from Threader's distribution. For details see:
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| 2 | http://www.model.in.tum.de/~popeea/research/threader
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| 3 | */
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| 4 |
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| 5 | #include <pthread.h>
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| 6 | #include <civlc.h>
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| 7 | #define assert(e) if (!(e)) $assert($false);
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| 8 |
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| 9 | int x, y=0;
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| 10 | int b1, b2; // boolean flags
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| 11 | int X; // boolean variable to test mutual exclusion
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| 12 |
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| 13 | void *thr1(void *arg) {
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| 14 | while (1) {
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| 15 | b1 = 1;
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| 16 | x = 1;
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| 17 | if (y != 0) {
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| 18 | b1 = 0;
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| 19 | while (y != 0) {};
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| 20 | continue;
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| 21 | }
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| 22 | y = 1;
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| 23 | if (x != 1) {
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| 24 | b1 = 0;
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| 25 | while (b2 >= 1) {};
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| 26 | if (y != 1) {
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| 27 | while (y != 0) {};
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| 28 | continue;
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| 29 | }
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| 30 | }
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| 31 | break;
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| 32 | }
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| 33 | // begin: critical section
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| 34 | X = 0;
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| 35 | assert(X <= 0);
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| 36 | // end: critical section
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| 37 | y = 0;
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| 38 | b1 = 0;
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| 39 | return NULL;
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| 40 | }
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| 41 |
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| 42 | void *thr2(void *arg) {
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| 43 | while (1) {
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| 44 | b2 = 1;
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| 45 | x = 2;
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| 46 | if (y != 0) {
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| 47 | b2 = 0;
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| 48 | while (y != 0) {};
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| 49 | continue;
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| 50 | }
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| 51 | y = 2;
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| 52 | if (x != 2) {
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| 53 | b2 = 0;
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| 54 | while (b1 >= 1) {};
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| 55 | if (y != 2) {
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| 56 | while (y != 0) {};
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| 57 | continue;
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| 58 | }
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| 59 | }
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| 60 | break;
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| 61 | }
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| 62 | // begin: critical section
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| 63 | X = 1;
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| 64 | assert(X >= 1);
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| 65 | // end: critical section
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| 66 | y = 0;
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| 67 | b2 = 0;
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| 68 | return NULL;
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| 69 | }
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| 70 |
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| 71 | int main(void) {
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| 72 | pthread_t t1, t2;
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| 73 | pthread_create(&t1, 0, thr1, 0);
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| 74 | pthread_create(&t2, 0, thr2, 0);
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| 75 | pthread_join(t1, 0);
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| 76 | pthread_join(t2, 0);
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| 77 | return 0;
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| 78 | }
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