#136: Start working on database persistence

vendor/modernc.org/ccgo/v3/lib/dmesg.go

@@ -0,0 +1,41 @@
+// Copyright 2021 The CCGO Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ccgo.dmesg
+
+package ccgo // import "modernc.org/ccgo/v3/lib"
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+const dmesgs = true
+
+var (
+	pid  = fmt.Sprintf("[%v %v] ", os.Getpid(), filepath.Base(os.Args[0]))
+	logf *os.File
+)
+
+func init() {
+	var err error
+	if logf, err = os.OpenFile("/tmp/ccgo.log", os.O_APPEND|os.O_CREATE|os.O_WRONLY|os.O_SYNC, 0644); err != nil {
+		panic(err.Error())
+	}
+}
+
+func dmesg(s string, args ...interface{}) {
+	if s == "" {
+		s = strings.Repeat("%v ", len(args))
+	}
+	s = fmt.Sprintf(pid+s, args...)
+	switch {
+	case len(s) != 0 && s[len(s)-1] == '\n':
+		fmt.Fprint(logf, s)
+	default:
+		fmt.Fprintln(logf, s)
+	}
+}