Add windows event log backend.

.idea/misc.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="XMakeProjectSettings">
+    <option name="currentArchitecture" value="x86" />
+    <option name="workingDirectory" value="$PROJECT_DIR$" />
+  </component>
+</project>

hiedabke_win_eventlog/go.mod

@@ -0,0 +1,8 @@
+module git.swzry.com/zry/GoHiedaLogger/hiedabke_win_eventlog
+
+go 1.19
+
+require (
+	git.swzry.com/zry/GoHiedaLogger/hiedalog v0.0.0-20221108101125-31cb2911c8e3
+	golang.org/x/sys v0.9.0
+)

hiedabke_win_eventlog/win_eventlog.go

@@ -0,0 +1,90 @@
+//go:build windows
+
+package hiedabke_win_eventlog
+
+import (
+	"fmt"
+	"git.swzry.com/zry/GoHiedaLogger/hiedalog"
+	"golang.org/x/sys/windows/svc/eventlog"
+	"strings"
+)
+
+type WinEventLogBackend struct {
+	WinLog *eventlog.Log
+	enable bool
+}
+
+var _ = hiedalog.HiedaLogBackend(&WinEventLogBackend{WinLog: nil})
+
+func NewConsoleBackend(logger *eventlog.Log) *WinEventLogBackend {
+	scb := &WinEventLogBackend{
+		WinLog: logger,
+		enable: true,
+	}
+	return scb
+}
+
+func (b *WinEventLogBackend) Shutdown() {
+	b.enable = false
+	_ = b.WinLog.Close()
+}
+
+func (b *WinEventLogBackend) EmitStringLog(module string, level hiedalog.HiedaLogLevel, content string) {
+	if !b.enable {
+		return
+	}
+	msg := fmt.Sprintf("<%s> [%s] %s\n", level.Name, module, content)
+	switch {
+	case level.LevelNumber < 3:
+		{
+			_ = b.WinLog.Error(uint32(level.LevelNumber), msg)
+			break
+		}
+	case level.LevelNumber == 3:
+		{
+			_ = b.WinLog.Warning(uint32(level.LevelNumber), msg)
+			break
+		}
+	case level.LevelNumber >= 4:
+		{
+			_ = b.WinLog.Info(uint32(level.LevelNumber), msg)
+			break
+		}
+	}
+}
+
+func (b *WinEventLogBackend) EmitComplexLog(module string, level hiedalog.HiedaLogLevel, data map[string]string) {
+	b.EmitStringLog(module, level, b.prettyComplexToString(data))
+}
+
+func (b *WinEventLogBackend) prettyComplexToString(data map[string]string) string {
+	sb := strings.Builder{}
+	scn := 0
+	xr := false
+	if len(data) < 5 {
+		for k, v := range data {
+			scn += len(k) + len(v) + 2
+			if scn > 160 {
+				xr = true
+				break
+			}
+			sb.WriteString(k)
+			sb.WriteRune(':')
+			sb.WriteString(v)
+			sb.WriteString(", ")
+		}
+		if !xr {
+			so := sb.String()
+			return so[:len(so)-2]
+		}
+	}
+	sb = strings.Builder{}
+	sb.WriteRune('\n')
+	for k, v := range data {
+		sb.WriteString(k)
+		sb.WriteRune(':')
+		sb.WriteString(v)
+		sb.WriteRune('\n')
+	}
+	return sb.String()
+}