50 lines
768 B
V
50 lines
768 B
V
import sync
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struct Counter {
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pub mut:
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i int
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}
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fn (mut c Counter) add(i int) {
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c.i = c.i + i
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}
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fn run(mut m sync.ManyTimes, mut co Counter, c chan bool) {
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m.do(fn [mut co] () {
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co.add(5)
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})
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c <- true
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}
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fn test_many_times_once() {
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mut co := &Counter{}
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mut m := sync.new_many_times(1)
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c := chan bool{}
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n := 10
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// It is executed 10 times, but only once actually.
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for i := 0; i < n; i++ {
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go run(mut m, mut co, c)
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}
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for i := 0; i < n; i++ {
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<-c
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}
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assert co.i == 5
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}
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fn test_many_times_fifth() {
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mut co := &Counter{}
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mut m := sync.new_many_times(5)
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c := chan bool{}
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n := 10
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// It is executed 10 times, but only 5 times actually.
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for i := 0; i < n; i++ {
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go run(mut m, mut co, c)
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}
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for i := 0; i < n; i++ {
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<-c
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}
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assert co.i == 25
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}
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