forked from sylabs/singularity
/
signal.go
73 lines (64 loc) · 1.87 KB
/
signal.go
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// Copyright (c) 2018, Sylabs Inc. All rights reserved.
// This software is licensed under a 3-clause BSD license. Please consult the
// LICENSE.md file distributed with the sources of this project regarding your
// rights to use or distribute this software.
package signal
import (
"fmt"
"strconv"
"strings"
"syscall"
)
var signalMap = map[string]syscall.Signal{
"SIGHUP": syscall.SIGHUP,
"SIGINT": syscall.SIGINT,
"SIGQUIT": syscall.SIGQUIT,
"SIGILL": syscall.SIGILL,
"SIGTRAP": syscall.SIGTRAP,
"SIGABRT": syscall.SIGABRT,
"SIGBUS": syscall.SIGBUS,
"SIGFPE": syscall.SIGFPE,
"SIGKILL": syscall.SIGKILL,
"SIGUSR1": syscall.SIGUSR1,
"SIGSEGV": syscall.SIGSEGV,
"SIGUSR2": syscall.SIGUSR2,
"SIGPIPE": syscall.SIGPIPE,
"SIGALRM": syscall.SIGALRM,
"SIGTERM": syscall.SIGTERM,
"SIGSTKFLT": syscall.SIGSTKFLT,
"SIGCHLD": syscall.SIGCHLD,
"SIGCONT": syscall.SIGCONT,
"SIGSTOP": syscall.SIGSTOP,
"SIGTSTP": syscall.SIGTSTP,
"SIGTTIN": syscall.SIGTTIN,
"SIGTTOU": syscall.SIGTTOU,
"SIGURG": syscall.SIGURG,
"SIGXCPU": syscall.SIGXCPU,
"SIGXFSZ": syscall.SIGXFSZ,
"SIGVTALRM": syscall.SIGVTALRM,
"SIGPROF": syscall.SIGPROF,
"SIGWINCH": syscall.SIGWINCH,
"SIGIO": syscall.SIGIO,
"SIGPWR": syscall.SIGPWR,
"SIGSYS": syscall.SIGSYS,
}
const signalMax = syscall.SIGSYS
// Convert converts a signal string to corresponding signal number
func Convert(sig string) (syscall.Signal, error) {
var sigNum syscall.Signal
if strings.HasPrefix(sig, "SIG") {
if sigNum, ok := signalMap[sig]; ok {
return sigNum, nil
}
}
if sigNum, ok := signalMap["SIG"+sig]; ok {
return sigNum, nil
}
sigConv, err := strconv.ParseInt(sig, 10, 32)
if err == nil {
if sigConv <= int64(signalMax) && sigConv > 0 {
return syscall.Signal(sigConv), nil
}
}
return sigNum, fmt.Errorf("can't convert %s to signal number", sig)
}