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https://github.com/ChaiScript/ChaiScript.git
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07d62aae99
* Fix #635: Segfault in async result via dangling pointer from optimized for loop * The optimized for loop (chaiscript_optimizer.hpp) stored the loop counter as a stack-local `int` and exposed it to ChaiScript via `var(&i)`, creating a reference-type Boxed_Value pointing to the stack frame.
26 lines
582 B
ChaiScript
26 lines
582 B
ChaiScript
// Issue #635: async + optimized for loop must not segfault from dangling pointer
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// := is reference-assign, so ret aliases i and sees the loop exit value
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var func = fun(){
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var ret = 0;
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for (var i = 0; i < 1000; ++i) {
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ret := i;
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}
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return ret;
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}
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var&fut1 = async(func);
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var fut2 = async(func);
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assert_equal(1000, fut1.get())
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assert_equal(1000, fut2.get())
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// Multiple concurrent async calls to stress the scenario
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var results = []
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for (var n = 0; n < 5; ++n) {
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results.push_back(async(func))
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}
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for (var n = 0; n < 5; ++n) {
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assert_equal(1000, results[n].get())
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}
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