Refactor: Rename NanoKVM to BatchuKVM and update server URL

2025-12-09 20:35:38 +09:00
commit 8cf674c9e5
396 changed files with 54380 additions and 0 deletions
--- a/server/service/hid/hid.go
+++ b/server/service/hid/hid.go
@@ -0,0 +1,161 @@
+package hid
+
+import (
+	"errors"
+	"os"
+	"sync"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+)
+
+type Hid struct {
+	g0         *os.File
+	g1         *os.File
+	g2         *os.File
+	kbMutex    sync.Mutex
+	mouseMutex sync.Mutex
+}
+
+const (
+	HID0 = "/dev/hidg0"
+	HID1 = "/dev/hidg1"
+	HID2 = "/dev/hidg2"
+)
+
+var (
+	hid     *Hid
+	hidOnce sync.Once
+)
+
+func GetHid() *Hid {
+	hidOnce.Do(func() {
+		hid = &Hid{}
+	})
+	return hid
+}
+
+func (h *Hid) Lock() {
+	h.kbMutex.Lock()
+	h.mouseMutex.Lock()
+}
+
+func (h *Hid) Unlock() {
+	h.kbMutex.Unlock()
+	h.mouseMutex.Unlock()
+}
+
+func (h *Hid) OpenNoLock() {
+	var err error
+	h.CloseNoLock()
+
+	h.g0, err = os.OpenFile(HID0, os.O_WRONLY, 0o666)
+	if err != nil {
+		log.Errorf("open %s failed: %s", HID0, err)
+	}
+
+	h.g1, err = os.OpenFile(HID1, os.O_WRONLY, 0o666)
+	if err != nil {
+		log.Errorf("open %s failed: %s", HID1, err)
+	}
+
+	h.g2, err = os.OpenFile(HID2, os.O_WRONLY, 0o666)
+	if err != nil {
+		log.Errorf("open %s failed: %s", HID2, err)
+	}
+}
+
+func (h *Hid) CloseNoLock() {
+	for _, file := range []*os.File{h.g0, h.g1, h.g2} {
+		if file != nil {
+			_ = file.Sync()
+			_ = file.Close()
+		}
+	}
+}
+
+func (h *Hid) Open() {
+	h.kbMutex.Lock()
+	defer h.kbMutex.Unlock()
+	h.mouseMutex.Lock()
+	defer h.mouseMutex.Unlock()
+
+	h.CloseNoLock()
+
+	h.OpenNoLock()
+}
+
+func (h *Hid) Close() {
+	h.kbMutex.Lock()
+	defer h.kbMutex.Unlock()
+	h.mouseMutex.Lock()
+	defer h.mouseMutex.Unlock()
+
+	h.CloseNoLock()
+}
+
+func (h *Hid) WriteHid0(data []byte) {
+	h.kbMutex.Lock()
+	_, err := h.g0.Write(data)
+	h.kbMutex.Unlock()
+
+	if err != nil {
+		if errors.Is(err, os.ErrClosed) {
+			log.Errorf("hid already closed, reopen it...")
+			h.OpenNoLock()
+		} else {
+			log.Debugf("write to %s failed: %s", HID0, err)
+		}
+		return
+	}
+
+	log.Debugf("write to %s: %v", HID0, data)
+}
+
+func (h *Hid) WriteHid1(data []byte) {
+	deadline := time.Now().Add(8 * time.Millisecond)
+
+	h.mouseMutex.Lock()
+	_ = h.g1.SetWriteDeadline(deadline)
+	_, err := h.g1.Write(data)
+	h.mouseMutex.Unlock()
+
+	if err != nil {
+		switch {
+		case errors.Is(err, os.ErrClosed):
+			log.Errorf("hid already closed, reopen it...")
+			h.OpenNoLock()
+		case errors.Is(err, os.ErrDeadlineExceeded):
+			log.Debugf("write to %s timeout", HID1)
+		default:
+			log.Errorf("write to %s failed: %s", HID1, err)
+		}
+		return
+	}
+
+	log.Debugf("write to %s: %v", HID1, data)
+}
+
+func (h *Hid) WriteHid2(data []byte) {
+	deadline := time.Now().Add(8 * time.Millisecond)
+
+	h.mouseMutex.Lock()
+	_ = h.g2.SetWriteDeadline(deadline)
+	_, err := h.g2.Write(data)
+	h.mouseMutex.Unlock()
+
+	if err != nil {
+		switch {
+		case errors.Is(err, os.ErrClosed):
+			log.Errorf("hid already closed, reopen it...")
+			h.OpenNoLock()
+		case errors.Is(err, os.ErrDeadlineExceeded):
+			log.Debugf("write to %s timeout", HID2)
+		default:
+			log.Errorf("write to %s failed: %s", HID2, err)
+		}
+		return
+	}
+
+	log.Debugf("write to %s: %v", HID2, data)
+}