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Unclean shutdown on SIGINT / SIGTERM (#3308)

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* libs/common: TrapSignal accepts logger as a first parameter

 and does not block anymore
* previously it was dumping "captured ..." msg to os.Stdout
* TrapSignal should not be responsible for blocking thread of execution

Refs #3238

* exit with zero (0) code upon receiving SIGTERM/SIGINT

Refs #3238

* fix formatting in docs/app-dev/abci-cli.md

Co-Authored-By: melekes <anton.kalyaev@gmail.com>

* fix formatting in docs/app-dev/abci-cli.md

Co-Authored-By: melekes <anton.kalyaev@gmail.com>
This commit is contained in:
Anton Kaliaev
2019-02-23 19:48:28 +04:00
committed by Ethan Buchman
parent 41f91318e9
commit cdf3a74f48
12 changed files with 103 additions and 86 deletions
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6
cmd/priv_val_server/main.go
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@ -54,10 +54,14 @@ func main() {
panic(err)
}
cmn.TrapSignal(func() {
// Stop upon receiving SIGTERM or CTRL-C.
cmn.TrapSignal(logger, func() {
err := rs.Stop()
if err != nil {
panic(err)
}
})
// Run forever.
select {}
}