Ophestra
bb92e3ada9
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This writes the 16-byte instance identifier to file descriptor specified by --identifier-fd if set, and closes the file. This enables safely obtaining the new instance's identifier. Signed-off-by: Ophestra <cat@gensokyo.uk>
31 lines
716 B
Go
31 lines
716 B
Go
package outcome
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import (
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"context"
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"log"
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"time"
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"hakurei.app/hst"
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"hakurei.app/message"
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)
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// Main runs an app according to [hst.Config] and terminates. Main does not return.
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func Main(ctx context.Context, msg message.Msg, config *hst.Config, fd int) {
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var id hst.ID
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if err := hst.NewInstanceID(&id); err != nil {
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log.Fatal(err.Error())
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}
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k := outcome{syscallDispatcher: direct{msg}}
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finaliseTime := time.Now()
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if err := k.finalise(ctx, msg, &id, config); err != nil {
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printMessageError(msg.GetLogger().Fatalln, "cannot seal app:", err)
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panic("unreachable")
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}
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msg.Verbosef("finalise took %.2f ms", float64(time.Since(finaliseTime).Nanoseconds())/1e6)
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k.main(msg, fd)
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panic("unreachable")
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}
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