fluencelabs/tendermint
1
0
Fork 0
mirror of https://github.com/fluencelabs/tendermint synced 2025-07-30 19:51:58 +00:00
Code Issues Projects Releases Wiki Activity

Unclean shutdown on SIGINT / SIGTERM (#3308)

Browse Source 
* 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
Download Patch File Download Diff File Expand all files Collapse all files

15
libs/common/os.go
View File

@@ -34,21 +34,24 @@ func GoPath() string {
return path
}
// TrapSignal catches the SIGTERM and executes cb function. After that it exits
// with code 1.
func TrapSignal(cb func()) {
type logger interface {
Info(msg string, keyvals ...interface{})
}
// TrapSignal catches the SIGTERM/SIGINT and executes cb function. After that it exits
// with code 0.
func TrapSignal(logger logger, cb func()) {
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
go func() {
for sig := range c {
fmt.Printf("captured %v, exiting...\n", sig)
logger.Info(fmt.Sprintf("captured %v, exiting...", sig))
if cb != nil {
cb()
}
os.Exit(1)
os.Exit(0)
}
}()
select {}
}
// Kill the running process by sending itself SIGTERM.