Create portable signalMap

Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume@charmes.net> (github: creack)

pkg/signal/signal.go

@@ -5,6 +5,14 @@ import (
 	"os/signal"
 )
 
+func CatchAll(sigc chan os.Signal) {
+	handledSigs := []os.Signal{}
+	for _, s := range signalMap {
+		handledSigs = append(handledSigs, s)
+	}
+	signal.Notify(sigc, handledSigs...)
+}
+
 func StopCatch(sigc chan os.Signal) {
 	signal.Stop(sigc)
 	close(sigc)

pkg/signal/signal_darwin.go

@@ -1,44 +1,40 @@
 package signal
 
 import (
-	"os"
-	"os/signal"
 	"syscall"
 )
 
-func CatchAll(sigc chan os.Signal) {
-	signal.Notify(sigc,
-		syscall.SIGABRT,
-		syscall.SIGALRM,
-		syscall.SIGBUS,
-		syscall.SIGCHLD,
-		syscall.SIGCONT,
-		syscall.SIGEMT,
-		syscall.SIGFPE,
-		syscall.SIGHUP,
-		syscall.SIGILL,
-		syscall.SIGINFO,
-		syscall.SIGINT,
-		syscall.SIGIO,
-		syscall.SIGIOT,
-		syscall.SIGKILL,
-		syscall.SIGPIPE,
-		syscall.SIGPROF,
-		syscall.SIGQUIT,
-		syscall.SIGSEGV,
-		syscall.SIGSTOP,
-		syscall.SIGSYS,
-		syscall.SIGTERM,
-		syscall.SIGTRAP,
-		syscall.SIGTSTP,
-		syscall.SIGTTIN,
-		syscall.SIGTTOU,
-		syscall.SIGURG,
-		syscall.SIGUSR1,
-		syscall.SIGUSR2,
-		syscall.SIGVTALRM,
-		syscall.SIGWINCH,
-		syscall.SIGXCPU,
-		syscall.SIGXFSZ,
-	)
+var signalMap = map[string]syscall.Signal{
+	"ABRT": syscall.SIGABRT,
+	"ALRM": syscall.SIGALRM,
+	"BUG": syscall.SIGBUS,
+	"CHLD": syscall.SIGCHLD,
+	"CONT": syscall.SIGCONT,
+	"EMT": syscall.SIGEMT,
+	"FPE": syscall.SIGFPE,
+	"HUP": syscall.SIGHUP,
+	"ILL": syscall.SIGILL,
+	"INFO": syscall.SIGINFO,
+	"INT": syscall.SIGINT,
+	"IO": syscall.SIGIO,
+	"IOT": syscall.SIGIOT,
+	"KILL": syscall.SIGKILL,
+	"PIPE": syscall.SIGPIPE,
+	"PROF": syscall.SIGPROF,
+	"QUIT": syscall.SIGQUIT,
+	"SEGV": syscall.SIGSEGV,
+	"STOP": syscall.SIGSTOP,
+	"SYS": syscall.SIGSYS,
+	"TERM": syscall.SIGTERM,
+	"TRAP": syscall.SIGTRAP,
+	"TSTP": syscall.SIGTSTP,
+	"TTIN": syscall.SIGTTIN,
+	"TTOU": syscall.SIGTTOU,
+	"URG": syscall.SIGURG,
+	"USR1": syscall.SIGUSR1,
+	"USR2": syscall.SIGUSR2,
+	"VTALRM": syscall.SIGVTALRM,
+	"WINCH": syscall.SIGWINCH,
+	"XCPU": syscall.SIGXCPU,
+	"XFSZ": syscall.SIGXFSZ,
 }

pkg/signal/signal_freebsd.go

@@ -6,37 +6,39 @@ import (
 	"syscall"
 )
 
-func CatchAll(sigc chan os.Signal) {
-	signal.Notify(sigc,
-		syscall.SIGABRT,
-		syscall.SIGALRM,
-		syscall.SIGBUS,
-		syscall.SIGCHLD,
-		syscall.SIGCONT,
-		syscall.SIGFPE,
-		syscall.SIGHUP,
-		syscall.SIGILL,
-		syscall.SIGINT,
-		syscall.SIGIO,
-		syscall.SIGIOT,
-		syscall.SIGKILL,
-		syscall.SIGPIPE,
-		syscall.SIGPROF,
-		syscall.SIGQUIT,
-		syscall.SIGSEGV,
-		syscall.SIGSTOP,
-		syscall.SIGSYS,
-		syscall.SIGTERM,
-		syscall.SIGTRAP,
-		syscall.SIGTSTP,
-		syscall.SIGTTIN,
-		syscall.SIGTTOU,
-		syscall.SIGURG,
-		syscall.SIGUSR1,
-		syscall.SIGUSR2,
-		syscall.SIGVTALRM,
-		syscall.SIGWINCH,
-		syscall.SIGXCPU,
-		syscall.SIGXFSZ,
-	)
+var signalMap = map[string]syscall.Signal{
+	"ABRT":   syscall.SIGABRT,
+	"ALRM":   syscall.SIGALRM,
+	"BUF":    syscall.SIGBUS,
+	"CHLD":   syscall.SIGCHLD,
+	"CONT":   syscall.SIGCONT,
+	"EMT":    syscall.SIGEMT,
+	"FPE":    syscall.SIGFPE,
+	"HUP":    syscall.SIGHUP,
+	"ILL":    syscall.SIGILL,
+	"INFO":   syscall.SIGINFO,
+	"INT":    syscall.SIGINT,
+	"IO":     syscall.SIGIO,
+	"IOT":    syscall.SIGIOT,
+	"KILL":   syscall.SIGKILL,
+	"LWP":    syscall.SIGLWP,
+	"PIPE":   syscall.SIGPIPE,
+	"PROF":   syscall.SIGPROF,
+	"QUIT":   syscall.SIGQUIT,
+	"SEGV":   syscall.SIGSEGV,
+	"STOP":   syscall.SIGSTOP,
+	"SYS":    syscall.SIGSYS,
+	"TERM":   syscall.SIGTERM,
+	"THR":    syscall.SIGTHR,
+	"TRAP":   syscall.SIGTRAP,
+	"TSTP":   syscall.SIGTSTP,
+	"TTIN":   syscall.SIGTTIN,
+	"TTOU":   syscall.SIGTTOU,
+	"URG":    syscall.SIGURG,
+	"USR1":   syscall.SIGUSR1,
+	"USR2":   syscall.SIGUSR2,
+	"VTALRM": syscall.SIGVTALRM,
+	"WINCH":  syscall.SIGWINCH,
+	"XCPU":   syscall.SIGXCPU,
+	"XFSZ":   syscall.SIGXFSZ,
 }

pkg/signal/signal_linux.go

@@ -1,87 +1,43 @@
 package signal
 
 import (
-	"os"
-	"os/signal"
 	"syscall"
 )
 
-var signalMap = map[string]syscall.Signal{}
-
-/*
-	syscall.SIGABRT,
-	syscall.SIGALRM,
-	syscall.SIGBUS,
-	syscall.SIGCHLD,
-	syscall.SIGCLD,
-	syscall.SIGCONT,
-	syscall.SIGFPE,
-	syscall.SIGHUP,
-	syscall.SIGILL,
-	syscall.SIGINT,
-	syscall.SIGIO,
-	syscall.SIGIOT,
-	syscall.SIGKILL,
-	syscall.SIGPIPE,
-	syscall.SIGPOLL,
-	syscall.SIGPROF,
-	syscall.SIGPWR,
-	syscall.SIGQUIT,
-	syscall.SIGSEGV,
-	syscall.SIGSTKFLT,
-	syscall.SIGSTOP,
-	syscall.SIGSYS,
-	syscall.SIGTERM,
-	syscall.SIGTRAP,
-	syscall.SIGTSTP,
-	syscall.SIGTTIN,
-	syscall.SIGTTOU,
-	syscall.SIGUNUSED,
-	syscall.SIGURG,
-	syscall.SIGUSR1,
-	syscall.SIGUSR2,
-	syscall.SIGVTALRM,
-	syscall.SIGWINCH,
-	syscall.SIGXCPU,
-	syscall.SIGXFSZ,
-*/
-
-func CatchAll(sigc chan os.Signal) {
-	signal.Notify(sigc,
-		syscall.SIGABRT,
-		syscall.SIGALRM,
-		syscall.SIGBUS,
-		syscall.SIGCHLD,
-		syscall.SIGCLD,
-		syscall.SIGCONT,
-		syscall.SIGFPE,
-		syscall.SIGHUP,
-		syscall.SIGILL,
-		syscall.SIGINT,
-		syscall.SIGIO,
-		syscall.SIGIOT,
-		syscall.SIGKILL,
-		syscall.SIGPIPE,
-		syscall.SIGPOLL,
-		syscall.SIGPROF,
-		syscall.SIGPWR,
-		syscall.SIGQUIT,
-		syscall.SIGSEGV,
-		syscall.SIGSTKFLT,
-		syscall.SIGSTOP,
-		syscall.SIGSYS,
-		syscall.SIGTERM,
-		syscall.SIGTRAP,
-		syscall.SIGTSTP,
-		syscall.SIGTTIN,
-		syscall.SIGTTOU,
-		syscall.SIGUNUSED,
-		syscall.SIGURG,
-		syscall.SIGUSR1,
-		syscall.SIGUSR2,
-		syscall.SIGVTALRM,
-		syscall.SIGWINCH,
-		syscall.SIGXCPU,
-		syscall.SIGXFSZ,
-	)
+var signalMap = map[string]syscall.Signal{
+	"ABRT":   syscall.SIGABRT,
+	"ALRM":   syscall.SIGALRM,
+	"BUS":    syscall.SIGBUS,
+	"CHLD":   syscall.SIGCHLD,
+	"CLD":    syscall.SIGCLD,
+	"CONT":   syscall.SIGCONT,
+	"FPE":    syscall.SIGFPE,
+	"HUP":    syscall.SIGHUP,
+	"ILL":    syscall.SIGILL,
+	"INT":    syscall.SIGINT,
+	"IO":     syscall.SIGIO,
+	"IOT":    syscall.SIGIOT,
+	"KILL":   syscall.SIGKILL,
+	"PIPE":   syscall.SIGPIPE,
+	"POLL":   syscall.SIGPOLL,
+	"PROF":   syscall.SIGPROF,
+	"PWR":    syscall.SIGPWR,
+	"QUIT":   syscall.SIGQUIT,
+	"SEGV":   syscall.SIGSEGV,
+	"STKFLT": syscall.SIGSTKFLT,
+	"STOP":   syscall.SIGSTOP,
+	"SYS":    syscall.SIGSYS,
+	"TERM":   syscall.SIGTERM,
+	"TRAP":   syscall.SIGTRAP,
+	"TSTP":   syscall.SIGTSTP,
+	"TTIN":   syscall.SIGTTIN,
+	"TTOU":   syscall.SIGTTOU,
+	"UNUSED": syscall.SIGUNUSED,
+	"URG":    syscall.SIGURG,
+	"USR1":   syscall.SIGUSR1,
+	"USR2":   syscall.SIGUSR2,
+	"VTALRM": syscall.SIGVTALRM,
+	"WINCH":  syscall.SIGWINCH,
+	"XCPU":   syscall.SIGXCPU,
+	"XFSZ":   syscall.SIGXFSZ,
 }

pkg/signal/signal_unsupported.go

@@ -0,0 +1,9 @@
+// +build !linux,!darwin,!freebsd
+
+package signal
+
+import (
+	"syscall"
+)
+
+var signalMap = map[string]syscall.Signal{}