36 lines
815 B
Plaintext
36 lines
815 B
Plaintext
import Std::Io::{PrintLine, PrintInt};
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import Std::Task::{Task_Wait, TaskHandle};
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import Std::Sync::{Mutex, Mutex_New, Mutex_Lock, Mutex_Unlock};
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struct Counter {
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value: int;
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mtx: Mutex;
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}
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func Incrementer(arg: *void) -> *void {
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let c: *Counter = arg as *Counter;
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var i: int = 0;
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while i < 100000 {
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Mutex_Lock(&c.mtx);
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c.value = c.value + 1;
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Mutex_Unlock(&c.mtx);
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i = i + 1;
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}
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return null;
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}
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func Main() -> int {
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var counter: Counter = Counter { value: 0, mtx: Mutex_New() };
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let a: *void = spawn Incrementer(&counter);
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let b: *void = spawn Incrementer(&counter);
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Task_Wait(TaskHandle { handle: a });
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Task_Wait(TaskHandle { handle: b });
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PrintLine("Counter:");
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PrintInt(counter.value);
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PrintLine("");
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return 0;
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}
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