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v/vlib/sync/channel_close_test.v
2020-08-10 06:22:20 +02:00

81 lines
1.6 KiB
V

import sync
import time
fn do_rec(mut ch sync.Channel, mut resch sync.Channel) {
mut sum := i64(0)
for {
mut a := 0
if !ch.pop(&a) {
break
}
sum += a
}
println(sum)
resch.push(&sum)
}
fn do_send(mut ch sync.Channel) {
for i in 0 .. 8000 {
ch.push(&i)
}
ch.close()
}
fn test_channel_close_buffered_multi() {
mut ch := sync.new_channel<int>(0)
mut resch := sync.new_channel<i64>(100)
go do_rec(mut ch, mut resch)
go do_rec(mut ch, mut resch)
go do_rec(mut ch, mut resch)
go do_rec(mut ch, mut resch)
go do_send(mut ch)
mut sum := i64(0)
for _ in 0 .. 4 {
mut r := i64(0)
resch.pop(&r)
sum += r
}
assert sum == i64(8000) * (8000 - 1) / 2
}
fn test_channel_close_unbuffered_multi() {
mut ch := sync.new_channel<int>(0)
mut resch := sync.new_channel<i64>(100)
go do_rec(mut ch, mut resch)
go do_rec(mut ch, mut resch)
go do_rec(mut ch, mut resch)
go do_rec(mut ch, mut resch)
go do_send(mut ch)
mut sum := i64(0)
for _ in 0 .. 4 {
mut r := i64(0)
resch.pop(&r)
sum += r
}
assert sum == i64(8000) * (8000 - 1) / 2
}
fn test_channel_close_buffered() {
mut ch := sync.new_channel<int>(0)
mut resch := sync.new_channel<i64>(100)
go do_rec(mut ch, mut resch)
go do_send(mut ch)
mut sum := i64(0)
mut r := i64(0)
resch.pop(&r)
sum += r
assert sum == i64(8000) * (8000 - 1) / 2
}
fn test_channel_close_unbuffered() {
mut ch := sync.new_channel<int>(0)
mut resch := sync.new_channel<i64>(100)
go do_rec(mut ch, mut resch)
go do_send(mut ch)
mut sum := i64(0)
mut r := i64(0)
resch.pop(&r)
sum += r
assert sum == i64(8000) * (8000 - 1) / 2
}