ea336061c2
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The PR introduces the `platform.Select()` API, wrapping `select(2)` on POSIX and emulated in some cases on Windows. RATIONALE.md contains a full explanation of the approach followed in `poll_oneoff` to handle Stdin and the other types of file descriptors, and the clock subscriptions. It also introduces an abstraction (`StdioFilePoller`) to allow the simulation of different scenarios (waiting for input, input ready, timeout expired, etc.) when unit-testing interactive input. This closes #1317. Signed-off-by: Edoardo Vacchi <evacchi@users.noreply.github.com>
17 lines
427 B
Go
17 lines
427 B
Go
package platform
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import (
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"syscall"
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"time"
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)
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// syscall_select invokes select on Unix (unless Darwin), with the given timeout Duration.
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func syscall_select(n int, r, w, e *FdSet, timeout *time.Duration) (int, error) {
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var t *syscall.Timeval
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if timeout != nil {
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tv := syscall.NsecToTimeval(timeout.Nanoseconds())
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t = &tv
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}
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return syscall.Select(n, (*syscall.FdSet)(r), (*syscall.FdSet)(w), (*syscall.FdSet)(e), t)
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}
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