gosema ipc sysv linux

1 files changed, 44 insertions, 0 deletions

diff --git a/error.go b/error.go
new file mode 100644
index 0000000..01dcc2d
--- /dev/null
+++ b/error.go
@@ -0,0 +1,44 @@
+package main
+
+import (
+	"fmt"
+	"os"
+)
+
+const (
+	format = "\033[1;31mfatal --\033[0m %s\n"
+	infomt = "\033[1;32mcmlog --\033[0m"
+	warnmt = "\033[1;33mwarng --\033[0m"
+)
+
+type mainerr error
+
+func defexit() {
+	r := recover()
+	switch x := r.(type) {
+	case mainerr:
+		fmt.Printf(format, x.Error())
+		os.Exit(-1)
+	case nil:
+		os.Exit(0)
+	default:
+		panic(x)
+	}
+}
+
+func fatal(err error) { panic(mainerr(err)) }
+func exits()          { fatal(nil) }
+func logst(d ...interface{}) {
+	d = append([]interface{}{infomt}, d...)
+	fmt.Println(d...)
+}
+
+func warng(d ...interface{}) {
+	d = append([]interface{}{warnmt}, d...)
+	fmt.Println(d...)
+}
+
+func usage(st string) {
+	fmt.Printf("usage: %v [client|server] .. \n", st)
+	exits()
+}