1.23
2.0
main
test-branch
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Last change
on this file since 13ac9574 was 28717d7, checked in by Stephen Siegel <siegel@…>, 12 years ago |
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Adding test commBad which reveals a defect: it deadlocks but CIVL says it doesn't. Reason: The deadlock predicate checks the guard on the system function $comm_enqueue and sees that it is true. However system guards are determined in a different way.
Adding hybrid example which has similar defect but is more complicated.
Adding NOTES on outline for new version of manual.
git-svn-id: svn://vsl.cis.udel.edu/civl/trunk@561 fb995dde-84ed-4084-dfe6-e5aef3e2452c
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File size:
380 bytes
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| 1 | /* Deadlocking use of communicator. Commandline execution:
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| 2 | * civl verify commBad.cvl
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| 3 | * */
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| 4 | #include <civlc.h>
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| 5 | #define TAG 0
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| 6 |
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| 7 | $comm comm;
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| 8 | _Bool start = $false;
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| 9 |
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| 10 | void worker(int me) {
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| 11 | $when (start);
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| 12 | $comm_dequeue(&comm, me, me, TAG);
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| 13 | }
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| 14 |
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| 15 | void main() {
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| 16 | $proc worker_proc = $spawn worker(0);
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| 17 |
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| 18 | comm = $comm_create(1, &worker_proc);
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| 19 | start = $true;
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| 20 | $wait worker_proc;
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| 21 | }
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