core/wayland: thread-safety meta fixes + cleanups + hypr workaround

- fork go-wayland/client and modify to make it thread-safe internally
- use sync.Map and atomic values in many places to cut down on mutex
  boilerplate
- do not create extworkspace client unless explicitly requested

core/go.mod

@@ -13,7 +13,6 @@ require (
 	github.com/holoplot/go-evdev v0.0.0-20250804134636-ab1d56a1fe83
 	github.com/spf13/cobra v1.10.1
 	github.com/stretchr/testify v1.11.1
-	github.com/yaslama/go-wayland/wayland v0.0.0-20250907155644-2874f32d9c34
 	golang.org/x/exp v0.0.0-20251113190631-e25ba8c21ef6
 )
 

core/go.sum

@@ -125,8 +125,6 @@ github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
-github.com/yaslama/go-wayland/wayland v0.0.0-20250907155644-2874f32d9c34 h1:iTAt1me6SBYsuzrl/CmrxtATPlOG/pVviosM3DhUdKE=
-github.com/yaslama/go-wayland/wayland v0.0.0-20250907155644-2874f32d9c34/go.mod h1:jzmUN5lUAv2O8e63OvcauV4S30rIZ1BvF/PNYE37vDo=
 golang.org/x/crypto v0.44.0 h1:A97SsFvM3AIwEEmTBiaxPPTYpDC47w720rdiiUvgoAU=
 golang.org/x/crypto v0.44.0/go.mod h1:013i+Nw79BMiQiMsOPcVCB5ZIJbYkerPrGnOa00tvmc=
 golang.org/x/exp v0.0.0-20251113190631-e25ba8c21ef6 h1:zfMcR1Cs4KNuomFFgGefv5N0czO2XZpUbxGUy8i8ug0=

core/internal/proto/dwl_ipc/dwl_ipc.go

@@ -1,12 +1,12 @@
 // Generated by go-wayland-scanner
-// https://github.com/yaslama/go-wayland/cmd/go-wayland-scanner
+// https://github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/cmd/go-wayland-scanner
 // XML file : internal/proto/xml/dwl-ipc-unstable-v2.xml
 //
 // dwl_ipc_unstable_v2 Protocol Copyright:
 
 package dwl_ipc
 
-import "github.com/yaslama/go-wayland/wayland/client"
+import "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 
 // ZdwlIpcManagerV2InterfaceName is the name of the interface as it appears in the [client.Registry].
 // It can be used to match the [client.RegistryGlobalEvent.Interface] in the

core/internal/proto/ext_workspace/workspace.go

@@ -1,5 +1,5 @@
 // Generated by go-wayland-scanner
-// https://github.com/yaslama/go-wayland/cmd/go-wayland-scanner
+// https://github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/cmd/go-wayland-scanner
 // XML file : ext-workspace-v1.xml
 //
 // ext_workspace_v1 Protocol Copyright:
@@ -33,9 +33,10 @@ package ext_workspace
 
 import (
 	"reflect"
+	"sync"
 	"unsafe"
 
-	"github.com/yaslama/go-wayland/wayland/client"
+	"github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 )
 
 // registerServerProxy registers a proxy with a server-assigned ID.
@@ -61,8 +62,9 @@ func registerServerProxy(ctx *client.Context, proxy client.Proxy, serverID uint3
 		return
 	}
 
-	objectsMap := reflect.NewAt(objectsField.Type(), unsafe.Pointer(objectsField.UnsafeAddr())).Elem()
-	objectsMap.SetMapIndex(reflect.ValueOf(serverID), reflect.ValueOf(proxy))
+	objectsMapPtr := unsafe.Pointer(objectsField.UnsafeAddr())
+	objectsMap := (*sync.Map)(objectsMapPtr)
+	objectsMap.Store(serverID, proxy)
 }
 
 // ExtWorkspaceManagerV1InterfaceName is the name of the interface as it appears in the [client.Registry].

core/internal/proto/wlr_gamma_control/gamma_control.go

@@ -1,5 +1,5 @@
 // Generated by go-wayland-scanner
-// https://github.com/yaslama/go-wayland/cmd/go-wayland-scanner
+// https://github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/cmd/go-wayland-scanner
 // XML file : wayland-protocols/wlr-gamma-control-unstable-v1.xml
 //
 // wlr_gamma_control_unstable_v1 Protocol Copyright:
@@ -31,7 +31,7 @@
 package wlr_gamma_control
 
 import (
-	"github.com/yaslama/go-wayland/wayland/client"
+	"github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 	"golang.org/x/sys/unix"
 )
 

core/internal/proto/wlr_output_management/output_management.go

@@ -1,5 +1,5 @@
 // Generated by go-wayland-scanner
-// https://github.com/yaslama/go-wayland/cmd/go-wayland-scanner
+// https://github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/cmd/go-wayland-scanner
 // XML file : /home/brandon/repos/dankdots/wlr-output-management-unstable-v1.xml
 //
 // wlr_output_management_unstable_v1 Protocol Copyright:
@@ -31,9 +31,10 @@ package wlr_output_management
 
 import (
 	"reflect"
+	"sync"
 	"unsafe"
 
-	"github.com/yaslama/go-wayland/wayland/client"
+	"github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 )
 
 func registerServerProxy(ctx *client.Context, proxy client.Proxy, serverID uint32) {
@@ -47,9 +48,9 @@ func registerServerProxy(ctx *client.Context, proxy client.Proxy, serverID uint3
 	if !objectsField.IsValid() {
 		return
 	}
-	objectsField = reflect.NewAt(objectsField.Type(), unsafe.Pointer(objectsField.UnsafeAddr())).Elem()
-	objectsMap := objectsField.Interface().(map[uint32]client.Proxy)
-	objectsMap[serverID] = proxy
+	objectsMapPtr := unsafe.Pointer(objectsField.UnsafeAddr())
+	objectsMap := (*sync.Map)(objectsMapPtr)
+	objectsMap.Store(serverID, proxy)
 }
 
 // ZwlrOutputManagerV1InterfaceName is the name of the interface as it appears in the [client.Registry].

core/internal/server/bluez/manager.go

@@ -31,8 +31,7 @@ func NewManager() (*Manager, error) {
 			ConnectedDevices: []Device{},
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers:        make(map[string]chan BluetoothState),
-		subMutex:           sync.RWMutex{},
+
 		stopChan:           make(chan struct{}),
 		dbusConn:           conn,
 		signals:            make(chan *dbus.Signal, 256),
@@ -430,28 +429,21 @@ func (m *Manager) notifier() {
 			}
 			m.updateDevices()
 
-			m.subMutex.RLock()
-			if len(m.subscribers) == 0 {
-				m.subMutex.RUnlock()
-				pending = false
-				continue
-			}
-
 			currentState := m.snapshotState()
 
 			if m.lastNotifiedState != nil && !stateChanged(m.lastNotifiedState, &currentState) {
-				m.subMutex.RUnlock()
 				pending = false
 				continue
 			}
 
-			for _, ch := range m.subscribers {
+			m.subscribers.Range(func(key, value interface{}) bool {
+				ch := value.(chan BluetoothState)
 				select {
 				case ch <- currentState:
 				default:
 				}
-			}
-			m.subMutex.RUnlock()
+				return true
+			})
 
 			stateCopy := currentState
 			m.lastNotifiedState = &stateCopy
@@ -484,19 +476,14 @@ func (m *Manager) snapshotState() BluetoothState {
 
 func (m *Manager) Subscribe(id string) chan BluetoothState {
 	ch := make(chan BluetoothState, 64)
-	m.subMutex.Lock()
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+	m.subscribers.Store(id, ch)
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan BluetoothState))
 	}
-	m.subMutex.Unlock()
 }
 
 func (m *Manager) SubscribePairing(id string) chan PairingPrompt {
@@ -618,12 +605,12 @@ func (m *Manager) Close() {
 		m.agent.Close()
 	}
 
-	m.subMutex.Lock()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan BluetoothState)
 		close(ch)
-	}
-	m.subscribers = make(map[string]chan BluetoothState)
-	m.subMutex.Unlock()
+		m.subscribers.Delete(key)
+		return true
+	})
 
 	m.pairingSubMutex.Lock()
 	for _, ch := range m.pairingSubscribers {

core/internal/server/bluez/types.go

@@ -59,8 +59,7 @@ type PairingPrompt struct {
 type Manager struct {
 	state              *BluetoothState
 	stateMutex         sync.RWMutex
-	subscribers        map[string]chan BluetoothState
-	subMutex           sync.RWMutex
+	subscribers        sync.Map
 	stopChan           chan struct{}
 	dbusConn           *dbus.Conn
 	signals            chan *dbus.Signal

core/internal/server/brightness/manager.go

@@ -15,8 +15,6 @@ func NewManager() (*Manager, error) {
 
 func NewManagerWithOptions(exponential bool) (*Manager, error) {
 	m := &Manager{
-		subscribers:       make(map[string]chan State),
-		updateSubscribers: make(map[string]chan DeviceUpdate),
 		stopChan:    make(chan struct{}),
 		exponential: exponential,
 	}
@@ -360,20 +358,14 @@ func (m *Manager) broadcastDeviceUpdate(deviceID string) {
 
 	update := DeviceUpdate{Device: *targetDevice}
 
-	m.subMutex.RLock()
-	defer m.subMutex.RUnlock()
-
-	if len(m.updateSubscribers) == 0 {
-		log.Debugf("No update subscribers for device: %s", deviceID)
-		return
-	}
-
 	log.Debugf("Broadcasting device update: %s at %d%%", deviceID, targetDevice.CurrentPercent)
 
-	for _, ch := range m.updateSubscribers {
+	m.updateSubscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan DeviceUpdate)
 		select {
 		case ch <- update:
 		default:
 		}
-	}
+		return true
+	})
 }

core/internal/server/brightness/sysfs_logind_test.go

@@ -45,8 +45,6 @@ func TestManager_SetBrightness_LogindSuccess(t *testing.T) {
 		sysfsBackend:  sysfs,
 		logindReady:   true,
 		sysfsReady:    true,
-		subscribers:       make(map[string]chan State),
-		updateSubscribers: make(map[string]chan DeviceUpdate),
 		stopChan:      make(chan struct{}),
 	}
 
@@ -119,8 +117,6 @@ func TestManager_SetBrightness_LogindFailsFallbackToSysfs(t *testing.T) {
 		sysfsBackend:  sysfs,
 		logindReady:   true,
 		sysfsReady:    true,
-		subscribers:       make(map[string]chan State),
-		updateSubscribers: make(map[string]chan DeviceUpdate),
 		stopChan:      make(chan struct{}),
 	}
 
@@ -189,8 +185,6 @@ func TestManager_SetBrightness_NoLogind(t *testing.T) {
 		sysfsBackend:  sysfs,
 		logindReady:   false,
 		sysfsReady:    true,
-		subscribers:       make(map[string]chan State),
-		updateSubscribers: make(map[string]chan DeviceUpdate),
 		stopChan:      make(chan struct{}),
 	}
 
@@ -254,8 +248,6 @@ func TestManager_SetBrightness_LEDWithLogind(t *testing.T) {
 		sysfsBackend:  sysfs,
 		logindReady:   true,
 		sysfsReady:    true,
-		subscribers:       make(map[string]chan State),
-		updateSubscribers: make(map[string]chan DeviceUpdate),
 		stopChan:      make(chan struct{}),
 	}
 

core/internal/server/brightness/types.go

@@ -51,9 +51,8 @@ type Manager struct {
 	stateMutex sync.RWMutex
 	state      State
 
-	subscribers       map[string]chan State
-	updateSubscribers map[string]chan DeviceUpdate
-	subMutex          sync.RWMutex
+	subscribers       sync.Map
+	updateSubscribers sync.Map
 
 	broadcastMutex   sync.Mutex
 	broadcastTimer   *time.Timer
@@ -121,36 +120,31 @@ type SetBrightnessParams struct {
 
 func (m *Manager) Subscribe(id string) chan State {
 	ch := make(chan State, 16)
-	m.subMutex.Lock()
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+
+	m.subscribers.Store(id, ch)
+
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan State))
+
 	}
-	m.subMutex.Unlock()
+
 }
 
 func (m *Manager) SubscribeUpdates(id string) chan DeviceUpdate {
 	ch := make(chan DeviceUpdate, 16)
-	m.subMutex.Lock()
-	m.updateSubscribers[id] = ch
-	m.subMutex.Unlock()
+	m.updateSubscribers.Store(id, ch)
 	return ch
 }
 
 func (m *Manager) UnsubscribeUpdates(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.updateSubscribers[id]; ok {
-		close(ch)
-		delete(m.updateSubscribers, id)
+	if val, ok := m.updateSubscribers.LoadAndDelete(id); ok {
+		close(val.(chan DeviceUpdate))
 	}
-	m.subMutex.Unlock()
 }
 
 func (m *Manager) NotifySubscribers() {
@@ -158,15 +152,14 @@ func (m *Manager) NotifySubscribers() {
 	state := m.state
 	m.stateMutex.RUnlock()
 
-	m.subMutex.RLock()
-	defer m.subMutex.RUnlock()
-
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan State)
 		select {
 		case ch <- state:
 		default:
 		}
-	}
+		return true
+	})
 }
 
 func (m *Manager) GetState() State {
@@ -178,16 +171,18 @@ func (m *Manager) GetState() State {
 func (m *Manager) Close() {
 	close(m.stopChan)
 
-	m.subMutex.Lock()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan State)
 		close(ch)
-	}
-	m.subscribers = make(map[string]chan State)
-	for _, ch := range m.updateSubscribers {
+		m.subscribers.Delete(key)
+		return true
+	})
+	m.updateSubscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan DeviceUpdate)
 		close(ch)
-	}
-	m.updateSubscribers = make(map[string]chan DeviceUpdate)
-	m.subMutex.Unlock()
+		m.updateSubscribers.Delete(key)
+		return true
+	})
 
 	if m.logindBackend != nil {
 		m.logindBackend.Close()

core/internal/server/cups/manager.go

@@ -40,8 +40,6 @@ func NewManager() (*Manager, error) {
 		stateMutex: sync.RWMutex{},
 		stopChan:   make(chan struct{}),
 		dirty:      make(chan struct{}, 1),
-		subscribers: make(map[string]chan CUPSState),
-		subMutex:    sync.RWMutex{},
 	}
 
 	if err := m.updateState(); err != nil {
@@ -142,28 +140,22 @@ func (m *Manager) notifier() {
 			if !pending {
 				continue
 			}
-			m.subMutex.RLock()
-			if len(m.subscribers) == 0 {
-				m.subMutex.RUnlock()
-				pending = false
-				continue
-			}
 
 			currentState := m.snapshotState()
 
 			if m.lastNotifiedState != nil && !stateChanged(m.lastNotifiedState, &currentState) {
-				m.subMutex.RUnlock()
 				pending = false
 				continue
 			}
 
-			for _, ch := range m.subscribers {
+			m.subscribers.Range(func(key, value interface{}) bool {
+				ch := value.(chan CUPSState)
 				select {
 				case ch <- currentState:
 				default:
 				}
-			}
-			m.subMutex.RUnlock()
+				return true
+			})
 
 			stateCopy := currentState
 			m.lastNotifiedState = &stateCopy
@@ -199,10 +191,14 @@ func (m *Manager) snapshotState() CUPSState {
 
 func (m *Manager) Subscribe(id string) chan CUPSState {
 	ch := make(chan CUPSState, 64)
-	m.subMutex.Lock()
-	wasEmpty := len(m.subscribers) == 0
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+
+	wasEmpty := true
+	m.subscribers.Range(func(key, value interface{}) bool {
+		wasEmpty = false
+		return false
+	})
+
+	m.subscribers.Store(id, ch)
 
 	if wasEmpty && m.subscription != nil {
 		if err := m.subscription.Start(); err != nil {
@@ -217,13 +213,15 @@ func (m *Manager) Subscribe(id string) chan CUPSState {
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan CUPSState))
 	}
-	isEmpty := len(m.subscribers) == 0
-	m.subMutex.Unlock()
+
+	isEmpty := true
+	m.subscribers.Range(func(key, value interface{}) bool {
+		isEmpty = false
+		return false
+	})
 
 	if isEmpty && m.subscription != nil {
 		m.subscription.Stop()
@@ -241,12 +239,12 @@ func (m *Manager) Close() {
 	m.eventWG.Wait()
 	m.notifierWg.Wait()
 
-	m.subMutex.Lock()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan CUPSState)
 		close(ch)
-	}
-	m.subscribers = make(map[string]chan CUPSState)
-	m.subMutex.Unlock()
+		m.subscribers.Delete(key)
+		return true
+	})
 }
 
 func stateChanged(old, new *CUPSState) bool {

core/internal/server/cups/manager_test.go

@@ -16,7 +16,6 @@ func TestNewManager(t *testing.T) {
 		client:   nil,
 		stopChan: make(chan struct{}),
 		dirty:    make(chan struct{}, 1),
-		subscribers: make(map[string]chan CUPSState),
 	}
 
 	assert.NotNil(t, m)
@@ -38,7 +37,6 @@ func TestManager_GetState(t *testing.T) {
 		client:   mockClient,
 		stopChan: make(chan struct{}),
 		dirty:    make(chan struct{}, 1),
-		subscribers: make(map[string]chan CUPSState),
 	}
 
 	state := m.GetState()
@@ -56,15 +54,25 @@ func TestManager_Subscribe(t *testing.T) {
 		client:   mockClient,
 		stopChan: make(chan struct{}),
 		dirty:    make(chan struct{}, 1),
-		subscribers: make(map[string]chan CUPSState),
 	}
 
 	ch := m.Subscribe("test-client")
 	assert.NotNil(t, ch)
-	assert.Equal(t, 1, len(m.subscribers))
+
+	count := 0
+	m.subscribers.Range(func(key, value interface{}) bool {
+		count++
+		return true
+	})
+	assert.Equal(t, 1, count)
 
 	m.Unsubscribe("test-client")
-	assert.Equal(t, 0, len(m.subscribers))
+	count = 0
+	m.subscribers.Range(func(key, value interface{}) bool {
+		count++
+		return true
+	})
+	assert.Equal(t, 0, count)
 }
 
 func TestManager_Close(t *testing.T) {
@@ -77,7 +85,6 @@ func TestManager_Close(t *testing.T) {
 		client:   mockClient,
 		stopChan: make(chan struct{}),
 		dirty:    make(chan struct{}, 1),
-		subscribers: make(map[string]chan CUPSState),
 	}
 
 	m.eventWG.Add(1)
@@ -93,7 +100,12 @@ func TestManager_Close(t *testing.T) {
 	}()
 
 	m.Close()
-	assert.Equal(t, 0, len(m.subscribers))
+	count := 0
+	m.subscribers.Range(func(key, value interface{}) bool {
+		count++
+		return true
+	})
+	assert.Equal(t, 0, count)
 }
 
 func TestStateChanged(t *testing.T) {

core/internal/server/cups/types.go

@@ -39,8 +39,7 @@ type Manager struct {
 	client            CUPSClientInterface
 	subscription      SubscriptionManagerInterface
 	stateMutex        sync.RWMutex
-	subscribers       map[string]chan CUPSState
-	subMutex          sync.RWMutex
+	subscribers       sync.Map
 	stopChan          chan struct{}
 	eventWG           sync.WaitGroup
 	dirty             chan struct{}

core/internal/server/dwl/manager.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"time"
 
-	wlclient "github.com/yaslama/go-wayland/wayland/client"
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/log"
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/proto/dwl_ipc"
@@ -18,7 +18,7 @@ func NewManager(display *wlclient.Display) (*Manager, error) {
 		cmdq:           make(chan cmd, 128),
 		outputSetupReq: make(chan uint32, 16),
 		stopChan:       make(chan struct{}),
-		subscribers:    make(map[string]chan State),
+
 		dirty:   make(chan struct{}, 1),
 		layouts: make([]string, 0),
 	}
@@ -365,14 +365,6 @@ func (m *Manager) notifier() {
 			if !pending {
 				continue
 			}
-			m.subMutex.RLock()
-			subCount := len(m.subscribers)
-			m.subMutex.RUnlock()
-
-			if subCount == 0 {
-				pending = false
-				continue
-			}
 
 			currentState := m.GetState()
 
@@ -381,15 +373,15 @@ func (m *Manager) notifier() {
 				continue
 			}
 
-			m.subMutex.RLock()
-			for _, ch := range m.subscribers {
+			m.subscribers.Range(func(key, value interface{}) bool {
+				ch := value.(chan State)
 				select {
 				case ch <- currentState:
 				default:
 					log.Warn("DWL: subscriber channel full, dropping update")
 				}
-			}
-			m.subMutex.RUnlock()
+				return true
+			})
 
 			stateCopy := currentState
 			m.lastNotified = &stateCopy
@@ -518,12 +510,12 @@ func (m *Manager) Close() {
 	m.wg.Wait()
 	m.notifierWg.Wait()
 
-	m.subMutex.Lock()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan State)
 		close(ch)
-	}
-	m.subscribers = make(map[string]chan State)
-	m.subMutex.Unlock()
+		m.subscribers.Delete(key)
+		return true
+	})
 
 	m.outputsMutex.Lock()
 	for _, out := range m.outputs {

core/internal/server/dwl/types.go

@@ -3,7 +3,7 @@ package dwl
 import (
 	"sync"
 
-	wlclient "github.com/yaslama/go-wayland/wayland/client"
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 )
 
 type TagState struct {
@@ -52,8 +52,7 @@ type Manager struct {
 	stopChan       chan struct{}
 	wg             sync.WaitGroup
 
-	subscribers  map[string]chan State
-	subMutex     sync.RWMutex
+	subscribers  sync.Map
 	dirty        chan struct{}
 	notifierWg   sync.WaitGroup
 	lastNotified *State
@@ -92,19 +91,19 @@ func (m *Manager) GetState() State {
 
 func (m *Manager) Subscribe(id string) chan State {
 	ch := make(chan State, 64)
-	m.subMutex.Lock()
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+
+	m.subscribers.Store(id, ch)
+
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan State))
+
 	}
-	m.subMutex.Unlock()
+
 }
 
 func (m *Manager) notifySubscribers() {

core/internal/server/evdev/handlers_test.go

@@ -49,7 +49,6 @@ func TestHandleRequest(t *testing.T) {
 		m := &Manager{
 			devices:   []EvdevDevice{mockDevice},
 			state:     State{Available: true, CapsLock: true},
-			subscribers: make(map[string]chan State),
 			closeChan: make(chan struct{}),
 		}
 
@@ -79,7 +78,6 @@ func TestHandleRequest(t *testing.T) {
 		m := &Manager{
 			devices:   []EvdevDevice{mockDevice},
 			state:     State{Available: true, CapsLock: false},
-			subscribers: make(map[string]chan State),
 			closeChan: make(chan struct{}),
 		}
 
@@ -109,7 +107,6 @@ func TestHandleGetState(t *testing.T) {
 	m := &Manager{
 		devices:   []EvdevDevice{mockDevice},
 		state:     State{Available: true, CapsLock: false},
-		subscribers: make(map[string]chan State),
 		closeChan: make(chan struct{}),
 	}
 

core/internal/server/evdev/manager.go

@@ -35,8 +35,7 @@ type Manager struct {
 	monitoredPaths map[string]bool
 	state          State
 	stateMutex     sync.RWMutex
-	subscribers    map[string]chan State
-	subMutex       sync.RWMutex
+	subscribers    sync.Map
 	closeChan      chan struct{}
 	closeOnce      sync.Once
 	watcher        *fsnotify.Watcher
@@ -69,7 +68,7 @@ func NewManager() (*Manager, error) {
 		devices:        devices,
 		monitoredPaths: monitoredPaths,
 		state:          State{Available: true, CapsLock: initialCapsLock},
-		subscribers:    make(map[string]chan State),
+
 		closeChan: make(chan struct{}),
 		watcher:   watcher,
 	}
@@ -332,37 +331,26 @@ func (m *Manager) GetState() State {
 }
 
 func (m *Manager) Subscribe(id string) chan State {
-	m.subMutex.Lock()
-	defer m.subMutex.Unlock()
-
 	ch := make(chan State, 16)
-	m.subscribers[id] = ch
+	m.subscribers.Store(id, ch)
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	defer m.subMutex.Unlock()
-
-	ch, ok := m.subscribers[id]
-	if !ok {
-		return
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan State))
 	}
-
-	close(ch)
-	delete(m.subscribers, id)
 }
 
 func (m *Manager) notifySubscribers(state State) {
-	m.subMutex.RLock()
-	defer m.subMutex.RUnlock()
-
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan State)
 		select {
 		case ch <- state:
 		default:
 		}
-	}
+		return true
+	})
 }
 
 func (m *Manager) Close() {
@@ -384,12 +372,12 @@ func (m *Manager) Close() {
 		}
 		m.devicesMutex.Unlock()
 
-		m.subMutex.Lock()
-		for id, ch := range m.subscribers {
+		m.subscribers.Range(func(key, value interface{}) bool {
+			ch := value.(chan State)
 			close(ch)
-			delete(m.subscribers, id)
-		}
-		m.subMutex.Unlock()
+			m.subscribers.Delete(key)
+			return true
+		})
 	})
 }
 

core/internal/server/evdev/manager_test.go

@@ -18,7 +18,6 @@ func TestManager_Creation(t *testing.T) {
 		m := &Manager{
 			devices:   []EvdevDevice{mockDevice},
 			state:     State{Available: true, CapsLock: false},
-			subscribers: make(map[string]chan State),
 			closeChan: make(chan struct{}),
 		}
 
@@ -34,7 +33,6 @@ func TestManager_Creation(t *testing.T) {
 		m := &Manager{
 			devices:   []EvdevDevice{mockDevice},
 			state:     State{Available: true, CapsLock: true},
-			subscribers: make(map[string]chan State),
 			closeChan: make(chan struct{}),
 		}
 
@@ -52,7 +50,6 @@ func TestManager_GetState(t *testing.T) {
 		devices:        []EvdevDevice{mockDevice},
 		monitoredPaths: make(map[string]bool),
 		state:          State{Available: true, CapsLock: false},
-		subscribers:    make(map[string]chan State),
 		closeChan:      make(chan struct{}),
 	}
 
@@ -69,13 +66,17 @@ func TestManager_Subscribe(t *testing.T) {
 		devices:        []EvdevDevice{mockDevice},
 		monitoredPaths: make(map[string]bool),
 		state:          State{Available: true, CapsLock: false},
-		subscribers:    make(map[string]chan State),
 		closeChan:      make(chan struct{}),
 	}
 
 	ch := m.Subscribe("test-client")
 	assert.NotNil(t, ch)
-	assert.Len(t, m.subscribers, 1)
+	count := 0
+	m.subscribers.Range(func(key, value interface{}) bool {
+		count++
+		return true
+	})
+	assert.Equal(t, 1, count)
 }
 
 func TestManager_Unsubscribe(t *testing.T) {
@@ -86,15 +87,24 @@ func TestManager_Unsubscribe(t *testing.T) {
 		devices:        []EvdevDevice{mockDevice},
 		monitoredPaths: make(map[string]bool),
 		state:          State{Available: true, CapsLock: false},
-		subscribers:    make(map[string]chan State),
 		closeChan:      make(chan struct{}),
 	}
 
 	ch := m.Subscribe("test-client")
-	assert.Len(t, m.subscribers, 1)
+	count := 0
+	m.subscribers.Range(func(key, value interface{}) bool {
+		count++
+		return true
+	})
+	assert.Equal(t, 1, count)
 
 	m.Unsubscribe("test-client")
-	assert.Len(t, m.subscribers, 0)
+	count = 0
+	m.subscribers.Range(func(key, value interface{}) bool {
+		count++
+		return true
+	})
+	assert.Equal(t, 0, count)
 
 	select {
 	case _, ok := <-ch:
@@ -112,7 +122,6 @@ func TestManager_UpdateCapsLock(t *testing.T) {
 		devices:        []EvdevDevice{mockDevice},
 		monitoredPaths: make(map[string]bool),
 		state:          State{Available: true, CapsLock: false},
-		subscribers:    make(map[string]chan State),
 		closeChan:      make(chan struct{}),
 	}
 
@@ -148,7 +157,6 @@ func TestManager_Close(t *testing.T) {
 		devices:        []EvdevDevice{mockDevice},
 		monitoredPaths: make(map[string]bool),
 		state:          State{Available: true, CapsLock: false},
-		subscribers:    make(map[string]chan State),
 		closeChan:      make(chan struct{}),
 	}
 
@@ -171,7 +179,12 @@ func TestManager_Close(t *testing.T) {
 		t.Error("channel 2 should be closed")
 	}
 
-	assert.Len(t, m.subscribers, 0)
+	count := 0
+	m.subscribers.Range(func(key, value interface{}) bool {
+		count++
+		return true
+	})
+	assert.Equal(t, 0, count)
 
 	m.Close()
 }
@@ -232,7 +245,6 @@ func TestManager_MonitorDevice(t *testing.T) {
 		m := &Manager{
 			devices:   []EvdevDevice{mockDevice},
 			state:     State{Available: true, CapsLock: false},
-			subscribers: make(map[string]chan State),
 			closeChan: make(chan struct{}),
 		}
 
@@ -276,7 +288,6 @@ func TestNotifySubscribers(t *testing.T) {
 		devices:        []EvdevDevice{mockDevice},
 		monitoredPaths: make(map[string]bool),
 		state:          State{Available: true, CapsLock: false},
-		subscribers:    make(map[string]chan State),
 		closeChan:      make(chan struct{}),
 	}
 

core/internal/server/extworkspace/manager.go

@@ -6,7 +6,7 @@ import (
 
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/log"
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/proto/ext_workspace"
-	wlclient "github.com/yaslama/go-wayland/wayland/client"
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 )
 
 func NewManager(display *wlclient.Display) (*Manager, error) {
@@ -19,7 +19,7 @@ func NewManager(display *wlclient.Display) (*Manager, error) {
 		workspaces:  make(map[uint32]*workspaceState),
 		cmdq:        make(chan cmd, 128),
 		stopChan:    make(chan struct{}),
-		subscribers: make(map[string]chan State),
+
 		dirty: make(chan struct{}, 1),
 	}
 
@@ -389,14 +389,6 @@ func (m *Manager) notifier() {
 			if !pending {
 				continue
 			}
-			m.subMutex.RLock()
-			subCount := len(m.subscribers)
-			m.subMutex.RUnlock()
-
-			if subCount == 0 {
-				pending = false
-				continue
-			}
 
 			currentState := m.GetState()
 
@@ -405,15 +397,15 @@ func (m *Manager) notifier() {
 				continue
 			}
 
-			m.subMutex.RLock()
-			for _, ch := range m.subscribers {
+			m.subscribers.Range(func(key, value interface{}) bool {
+				ch := value.(chan State)
 				select {
 				case ch <- currentState:
 				default:
 					log.Warn("ExtWorkspace: subscriber channel full, dropping update")
 				}
-			}
-			m.subMutex.RUnlock()
+				return true
+			})
 
 			stateCopy := currentState
 			m.lastNotified = &stateCopy
@@ -564,12 +556,12 @@ func (m *Manager) Close() {
 	m.wg.Wait()
 	m.notifierWg.Wait()
 
-	m.subMutex.Lock()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan State)
 		close(ch)
-	}
-	m.subscribers = make(map[string]chan State)
-	m.subMutex.Unlock()
+		m.subscribers.Delete(key)
+		return true
+	})
 
 	m.workspacesMutex.Lock()
 	for _, ws := range m.workspaces {

core/internal/server/extworkspace/types.go

@@ -4,7 +4,7 @@ import (
 	"sync"
 
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/proto/ext_workspace"
-	wlclient "github.com/yaslama/go-wayland/wayland/client"
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 )
 
 type Workspace struct {
@@ -52,8 +52,7 @@ type Manager struct {
 	stopChan chan struct{}
 	wg       sync.WaitGroup
 
-	subscribers  map[string]chan State
-	subMutex     sync.RWMutex
+	subscribers  sync.Map
 	dirty        chan struct{}
 	notifierWg   sync.WaitGroup
 	lastNotified *State
@@ -95,19 +94,19 @@ func (m *Manager) GetState() State {
 
 func (m *Manager) Subscribe(id string) chan State {
 	ch := make(chan State, 64)
-	m.subMutex.Lock()
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+
+	m.subscribers.Store(id, ch)
+
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan State))
+
 	}
-	m.subMutex.Unlock()
+
 }
 
 func (m *Manager) notifySubscribers() {

core/internal/server/freedesktop/manager.go

@@ -29,8 +29,6 @@ func NewManager() (*Manager, error) {
 		systemConn:  systemConn,
 		sessionConn: sessionConn,
 		currentUID:  uint64(os.Getuid()),
-		subscribers: make(map[string]chan FreedeskState),
-		subMutex:    sync.RWMutex{},
 	}
 
 	m.initializeAccounts()
@@ -206,41 +204,35 @@ func (m *Manager) GetState() FreedeskState {
 
 func (m *Manager) Subscribe(id string) chan FreedeskState {
 	ch := make(chan FreedeskState, 64)
-	m.subMutex.Lock()
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+	m.subscribers.Store(id, ch)
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan FreedeskState))
 	}
-	m.subMutex.Unlock()
 }
 
 func (m *Manager) NotifySubscribers() {
-	m.subMutex.RLock()
-	defer m.subMutex.RUnlock()
-
 	state := m.GetState()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan FreedeskState)
 		select {
 		case ch <- state:
 		default:
 		}
-	}
+		return true
+	})
 }
 
 func (m *Manager) Close() {
-	m.subMutex.Lock()
-	for id, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan FreedeskState)
 		close(ch)
-		delete(m.subscribers, id)
-	}
-	m.subMutex.Unlock()
+		m.subscribers.Delete(key)
+		return true
+	})
 
 	if m.systemConn != nil {
 		m.systemConn.Close()

core/internal/server/freedesktop/types.go

@@ -41,6 +41,5 @@ type Manager struct {
 	accountsObj dbus.BusObject
 	settingsObj dbus.BusObject
 	currentUID  uint64
-	subscribers map[string]chan FreedeskState
-	subMutex    sync.RWMutex
+	subscribers sync.Map
 }

core/internal/server/loginctl/handlers_test.go

@@ -467,8 +467,6 @@ func TestHandleSubscribe(t *testing.T) {
 			Locked:    false,
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
 	}
 
 	conn := newMockNetConn()

core/internal/server/loginctl/manager.go

@@ -26,8 +26,7 @@ func NewManager() (*Manager, error) {
 			SessionID: sessionID,
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
+
 		stopChan: make(chan struct{}),
 		conn:     conn,
 		dirty:    make(chan struct{}, 1),
@@ -351,19 +350,14 @@ func (m *Manager) GetState() SessionState {
 
 func (m *Manager) Subscribe(id string) chan SessionState {
 	ch := make(chan SessionState, 64)
-	m.subMutex.Lock()
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+	m.subscribers.Store(id, ch)
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan SessionState))
 	}
-	m.subMutex.Unlock()
 }
 
 func (m *Manager) notifier() {
@@ -387,28 +381,22 @@ func (m *Manager) notifier() {
 			if !pending {
 				continue
 			}
-			m.subMutex.RLock()
-			if len(m.subscribers) == 0 {
-				m.subMutex.RUnlock()
-				pending = false
-				continue
-			}
 
 			currentState := m.snapshotState()
 
 			if m.lastNotifiedState != nil && !stateChangedMeaningfully(m.lastNotifiedState, &currentState) {
-				m.subMutex.RUnlock()
 				pending = false
 				continue
 			}
 
-			for _, ch := range m.subscribers {
+			m.subscribers.Range(func(key, value interface{}) bool {
+				ch := value.(chan SessionState)
 				select {
 				case ch <- currentState:
 				default:
 				}
-			}
-			m.subMutex.RUnlock()
+				return true
+			})
 
 			stateCopy := currentState
 			m.lastNotifiedState = &stateCopy
@@ -584,12 +572,12 @@ func (m *Manager) Close() {
 
 	m.releaseSleepInhibitor()
 
-	m.subMutex.Lock()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan SessionState)
 		close(ch)
-	}
-	m.subscribers = make(map[string]chan SessionState)
-	m.subMutex.Unlock()
+		m.subscribers.Delete(key)
+		return true
+	})
 
 	if m.conn != nil {
 		m.conn.Close()

core/internal/server/loginctl/manager_test.go

@@ -35,25 +35,19 @@ func TestManager_GetState(t *testing.T) {
 func TestManager_Subscribe(t *testing.T) {
 	manager := &Manager{
 		state: &SessionState{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
 	}
 
 	ch := manager.Subscribe("test-client")
 	assert.NotNil(t, ch)
 	assert.Equal(t, 64, cap(ch))
 
-	manager.subMutex.RLock()
-	_, exists := manager.subscribers["test-client"]
-	manager.subMutex.RUnlock()
+	_, exists := manager.subscribers.Load("test-client")
 	assert.True(t, exists)
 }
 
 func TestManager_Unsubscribe(t *testing.T) {
 	manager := &Manager{
 		state: &SessionState{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
 	}
 
 	ch := manager.Subscribe("test-client")
@@ -63,17 +57,13 @@ func TestManager_Unsubscribe(t *testing.T) {
 	_, ok := <-ch
 	assert.False(t, ok)
 
-	manager.subMutex.RLock()
-	_, exists := manager.subscribers["test-client"]
-	manager.subMutex.RUnlock()
+	_, exists := manager.subscribers.Load("test-client")
 	assert.False(t, exists)
 }
 
 func TestManager_Unsubscribe_NonExistent(t *testing.T) {
 	manager := &Manager{
 		state: &SessionState{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
 	}
 
 	// Unsubscribe a non-existent client should not panic
@@ -89,8 +79,6 @@ func TestManager_NotifySubscribers(t *testing.T) {
 			Locked:    false,
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
 		stopChan:   make(chan struct{}),
 		dirty:      make(chan struct{}, 1),
 	}
@@ -98,9 +86,7 @@ func TestManager_NotifySubscribers(t *testing.T) {
 	go manager.notifier()
 
 	ch := make(chan SessionState, 10)
-	manager.subMutex.Lock()
-	manager.subscribers["test-client"] = ch
-	manager.subMutex.Unlock()
+	manager.subscribers.Store("test-client", ch)
 
 	manager.notifySubscribers()
 
@@ -123,8 +109,6 @@ func TestManager_NotifySubscribers_Debounce(t *testing.T) {
 			Locked:    false,
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
 		stopChan:   make(chan struct{}),
 		dirty:      make(chan struct{}, 1),
 	}
@@ -132,9 +116,7 @@ func TestManager_NotifySubscribers_Debounce(t *testing.T) {
 	go manager.notifier()
 
 	ch := make(chan SessionState, 10)
-	manager.subMutex.Lock()
-	manager.subscribers["test-client"] = ch
-	manager.subMutex.Unlock()
+	manager.subscribers.Store("test-client", ch)
 
 	manager.notifySubscribers()
 	manager.notifySubscribers()
@@ -159,17 +141,13 @@ func TestManager_Close(t *testing.T) {
 	manager := &Manager{
 		state:      &SessionState{},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
 		stopChan:   make(chan struct{}),
 	}
 
 	ch1 := make(chan SessionState, 1)
 	ch2 := make(chan SessionState, 1)
-	manager.subMutex.Lock()
-	manager.subscribers["client1"] = ch1
-	manager.subscribers["client2"] = ch2
-	manager.subMutex.Unlock()
+	manager.subscribers.Store("client1", ch1)
+	manager.subscribers.Store("client2", ch2)
 
 	manager.Close()
 
@@ -184,7 +162,12 @@ func TestManager_Close(t *testing.T) {
 	assert.False(t, ok1, "ch1 should be closed")
 	assert.False(t, ok2, "ch2 should be closed")
 
-	assert.Len(t, manager.subscribers, 0)
+	count := 0
+	manager.subscribers.Range(func(key, value interface{}) bool {
+		count++
+		return true
+	})
+	assert.Equal(t, 0, count)
 }
 
 func TestManager_GetState_ThreadSafe(t *testing.T) {

core/internal/server/loginctl/monitor_test.go

@@ -15,8 +15,6 @@ func TestManager_HandleDBusSignal_Lock(t *testing.T) {
 			LockedHint: false,
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
 		dirty:      make(chan struct{}, 1),
 	}
 
@@ -39,8 +37,6 @@ func TestManager_HandleDBusSignal_Unlock(t *testing.T) {
 			LockedHint: true,
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan SessionState),
-		subMutex:    sync.RWMutex{},
 		dirty:      make(chan struct{}, 1),
 	}
 
@@ -63,8 +59,6 @@ func TestManager_HandleDBusSignal_PrepareForSleep(t *testing.T) {
 				PreparingForSleep: false,
 			},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 
@@ -86,8 +80,6 @@ func TestManager_HandleDBusSignal_PrepareForSleep(t *testing.T) {
 				PreparingForSleep: true,
 			},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 
@@ -109,8 +101,6 @@ func TestManager_HandleDBusSignal_PrepareForSleep(t *testing.T) {
 				PreparingForSleep: false,
 			},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 
@@ -134,8 +124,6 @@ func TestManager_HandlePropertiesChanged(t *testing.T) {
 				Active: false,
 			},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 
@@ -162,8 +150,6 @@ func TestManager_HandlePropertiesChanged(t *testing.T) {
 				IdleHint: false,
 			},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 
@@ -190,8 +176,6 @@ func TestManager_HandlePropertiesChanged(t *testing.T) {
 				IdleSinceHint: 0,
 			},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 
@@ -219,8 +203,6 @@ func TestManager_HandlePropertiesChanged(t *testing.T) {
 				Locked:     false,
 			},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 
@@ -248,8 +230,6 @@ func TestManager_HandlePropertiesChanged(t *testing.T) {
 				Active: false,
 			},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 
@@ -274,8 +254,6 @@ func TestManager_HandlePropertiesChanged(t *testing.T) {
 		manager := &Manager{
 			state:      &SessionState{},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 
@@ -296,8 +274,6 @@ func TestManager_HandlePropertiesChanged(t *testing.T) {
 				IdleHint: false,
 			},
 			stateMutex: sync.RWMutex{},
-			subscribers: make(map[string]chan SessionState),
-			subMutex:    sync.RWMutex{},
 			dirty:      make(chan struct{}, 1),
 		}
 

core/internal/server/loginctl/types.go

@@ -50,8 +50,7 @@ type SessionEvent struct {
 type Manager struct {
 	state                 *SessionState
 	stateMutex            sync.RWMutex
-	subscribers           map[string]chan SessionState
-	subMutex              sync.RWMutex
+	subscribers           sync.Map
 	stopChan              chan struct{}
 	conn                  *dbus.Conn
 	sessionPath           dbus.ObjectPath

core/internal/server/network/handlers_test.go

@@ -241,18 +241,24 @@ func TestHandleSubscribe(t *testing.T) {
 func TestManager_Subscribe_Unsubscribe(t *testing.T) {
 	manager := &Manager{
 		state: &NetworkState{},
-		subscribers: make(map[string]chan NetworkState),
 	}
 
 	t.Run("subscribe creates channel", func(t *testing.T) {
 		ch := manager.Subscribe("client1")
 		assert.NotNil(t, ch)
-		assert.Len(t, manager.subscribers, 1)
+		count := 0
+		manager.subscribers.Range(func(key, value interface{}) bool {
+			count++
+			return true
+		})
+		assert.Equal(t, 1, count)
 	})
 
 	t.Run("unsubscribe removes channel", func(t *testing.T) {
 		manager.Unsubscribe("client1")
-		assert.Len(t, manager.subscribers, 0)
+		count := 0
+		manager.subscribers.Range(func(key, value interface{}) bool { count++; return true })
+		assert.Equal(t, 0, count)
 	})
 
 	t.Run("unsubscribe non-existent client is safe", func(t *testing.T) {

core/internal/server/network/manager.go

@@ -67,8 +67,7 @@ func NewManager() (*Manager, error) {
 			WiFiNetworks:  []WiFiNetwork{},
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers:           make(map[string]chan NetworkState),
-		subMutex:              sync.RWMutex{},
+
 		stopChan:              make(chan struct{}),
 		dirty:                 make(chan struct{}, 1),
 		credentialSubscribers: make(map[string]chan CredentialPrompt),
@@ -270,19 +269,14 @@ func (m *Manager) GetState() NetworkState {
 
 func (m *Manager) Subscribe(id string) chan NetworkState {
 	ch := make(chan NetworkState, 64)
-	m.subMutex.Lock()
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+	m.subscribers.Store(id, ch)
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan NetworkState))
 	}
-	m.subMutex.Unlock()
 }
 
 func (m *Manager) SubscribeCredentials(id string) chan CredentialPrompt {
@@ -335,28 +329,22 @@ func (m *Manager) notifier() {
 			if !pending {
 				continue
 			}
-			m.subMutex.RLock()
-			if len(m.subscribers) == 0 {
-				m.subMutex.RUnlock()
-				pending = false
-				continue
-			}
 
 			currentState := m.snapshotState()
 
 			if m.lastNotifiedState != nil && !stateChangedMeaningfully(m.lastNotifiedState, &currentState) {
-				m.subMutex.RUnlock()
 				pending = false
 				continue
 			}
 
-			for _, ch := range m.subscribers {
+			m.subscribers.Range(func(key, value interface{}) bool {
+				ch := value.(chan NetworkState)
 				select {
 				case ch <- currentState:
 				default:
 				}
-			}
-			m.subMutex.RUnlock()
+				return true
+			})
 
 			stateCopy := currentState
 			m.lastNotifiedState = &stateCopy
@@ -396,12 +384,12 @@ func (m *Manager) Close() {
 		m.backend.Close()
 	}
 
-	m.subMutex.Lock()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan NetworkState)
 		close(ch)
-	}
-	m.subscribers = make(map[string]chan NetworkState)
-	m.subMutex.Unlock()
+		m.subscribers.Delete(key)
+		return true
+	})
 }
 
 func (m *Manager) ScanWiFi() error {

core/internal/server/network/manager_test.go

@@ -32,8 +32,6 @@ func TestManager_NotifySubscribers(t *testing.T) {
 			NetworkStatus: StatusWiFi,
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan NetworkState),
-		subMutex:    sync.RWMutex{},
 		stopChan:   make(chan struct{}),
 		dirty:      make(chan struct{}, 1),
 	}
@@ -41,9 +39,7 @@ func TestManager_NotifySubscribers(t *testing.T) {
 	go manager.notifier()
 
 	ch := make(chan NetworkState, 10)
-	manager.subMutex.Lock()
-	manager.subscribers["test-client"] = ch
-	manager.subMutex.Unlock()
+	manager.subscribers.Store("test-client", ch)
 
 	manager.notifySubscribers()
 
@@ -64,8 +60,6 @@ func TestManager_NotifySubscribers_Debounce(t *testing.T) {
 			NetworkStatus: StatusWiFi,
 		},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan NetworkState),
-		subMutex:    sync.RWMutex{},
 		stopChan:   make(chan struct{}),
 		dirty:      make(chan struct{}, 1),
 	}
@@ -73,9 +67,7 @@ func TestManager_NotifySubscribers_Debounce(t *testing.T) {
 	go manager.notifier()
 
 	ch := make(chan NetworkState, 10)
-	manager.subMutex.Lock()
-	manager.subscribers["test-client"] = ch
-	manager.subMutex.Unlock()
+	manager.subscribers.Store("test-client", ch)
 
 	manager.notifySubscribers()
 	manager.notifySubscribers()
@@ -100,17 +92,13 @@ func TestManager_Close(t *testing.T) {
 	manager := &Manager{
 		state:      &NetworkState{},
 		stateMutex: sync.RWMutex{},
-		subscribers: make(map[string]chan NetworkState),
-		subMutex:    sync.RWMutex{},
 		stopChan:   make(chan struct{}),
 	}
 
 	ch1 := make(chan NetworkState, 1)
 	ch2 := make(chan NetworkState, 1)
-	manager.subMutex.Lock()
-	manager.subscribers["client1"] = ch1
-	manager.subscribers["client2"] = ch2
-	manager.subMutex.Unlock()
+	manager.subscribers.Store("client1", ch1)
+	manager.subscribers.Store("client2", ch2)
 
 	manager.Close()
 
@@ -125,31 +113,27 @@ func TestManager_Close(t *testing.T) {
 	assert.False(t, ok1, "ch1 should be closed")
 	assert.False(t, ok2, "ch2 should be closed")
 
-	assert.Len(t, manager.subscribers, 0)
+	count := 0
+	manager.subscribers.Range(func(key, value interface{}) bool { count++; return true })
+	assert.Equal(t, 0, count)
 }
 
 func TestManager_Subscribe(t *testing.T) {
 	manager := &Manager{
 		state: &NetworkState{},
-		subscribers: make(map[string]chan NetworkState),
-		subMutex:    sync.RWMutex{},
 	}
 
 	ch := manager.Subscribe("test-client")
 	assert.NotNil(t, ch)
 	assert.Equal(t, 64, cap(ch))
 
-	manager.subMutex.RLock()
-	_, exists := manager.subscribers["test-client"]
-	manager.subMutex.RUnlock()
+	_, exists := manager.subscribers.Load("test-client")
 	assert.True(t, exists)
 }
 
 func TestManager_Unsubscribe(t *testing.T) {
 	manager := &Manager{
 		state: &NetworkState{},
-		subscribers: make(map[string]chan NetworkState),
-		subMutex:    sync.RWMutex{},
 	}
 
 	ch := manager.Subscribe("test-client")
@@ -159,9 +143,7 @@ func TestManager_Unsubscribe(t *testing.T) {
 	_, ok := <-ch
 	assert.False(t, ok)
 
-	manager.subMutex.RLock()
-	_, exists := manager.subscribers["test-client"]
-	manager.subMutex.RUnlock()
+	_, exists := manager.subscribers.Load("test-client")
 	assert.False(t, exists)
 }
 

core/internal/server/network/testing.go

@@ -8,7 +8,6 @@ func NewTestManager(backend Backend, state *NetworkState) *Manager {
 	return &Manager{
 		backend:  backend,
 		state:    state,
-		subscribers: make(map[string]chan NetworkState),
 		stopChan: make(chan struct{}),
 		dirty:    make(chan struct{}, 1),
 	}

core/internal/server/network/types.go

@@ -108,8 +108,7 @@ type Manager struct {
 	backend               Backend
 	state                 *NetworkState
 	stateMutex            sync.RWMutex
-	subscribers           map[string]chan NetworkState
-	subMutex              sync.RWMutex
+	subscribers           sync.Map
 	stopChan              chan struct{}
 	dirty                 chan struct{}
 	notifierWg            sync.WaitGroup

core/internal/server/server.go

@@ -10,6 +10,7 @@ import (
 	"strconv"
 	"strings"
 	"sync"
+	"sync/atomic"
 	"syscall"
 	"time"
 
@@ -58,11 +59,9 @@ var wlrOutputManager *wlroutput.Manager
 var evdevManager *evdev.Manager
 var wlContext *wlcontext.SharedContext
 
-var capabilitySubscribers = make(map[string]chan ServerInfo)
-var capabilityMutex sync.RWMutex
-
-var cupsSubscribers = make(map[string]bool)
-var cupsSubscribersMutex sync.Mutex
+var capabilitySubscribers sync.Map
+var cupsSubscribers sync.Map
+var cupsSubscriberCount atomic.Int32
 
 func getSocketDir() string {
 	if runtime := os.Getenv("XDG_RUNTIME_DIR"); runtime != "" {
@@ -434,16 +433,15 @@ func getServerInfo() ServerInfo {
 }
 
 func notifyCapabilityChange() {
-	capabilityMutex.RLock()
-	defer capabilityMutex.RUnlock()
-
 	info := getServerInfo()
-	for _, ch := range capabilitySubscribers {
+	capabilitySubscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan ServerInfo)
 		select {
 		case ch <- info:
 		default:
 		}
-	}
+		return true
+	})
 }
 
 func handleSubscribe(conn net.Conn, req models.Request) {
@@ -475,18 +473,12 @@ func handleSubscribe(conn net.Conn, req models.Request) {
 	stopChan := make(chan struct{})
 
 	capChan := make(chan ServerInfo, 64)
-	capabilityMutex.Lock()
-	capabilitySubscribers[clientID+"-capabilities"] = capChan
-	capabilityMutex.Unlock()
+	capabilitySubscribers.Store(clientID+"-capabilities", capChan)
 
 	wg.Add(1)
 	go func() {
 		defer wg.Done()
-		defer func() {
-			capabilityMutex.Lock()
-			delete(capabilitySubscribers, clientID+"-capabilities")
-			capabilityMutex.Unlock()
-		}()
+		defer capabilitySubscribers.Delete(clientID + "-capabilities")
 
 		for {
 			select {
@@ -728,12 +720,10 @@ func handleSubscribe(conn net.Conn, req models.Request) {
 	}
 
 	if shouldSubscribe("cups") {
-		cupsSubscribersMutex.Lock()
-		wasEmpty := len(cupsSubscribers) == 0
-		cupsSubscribers[clientID+"-cups"] = true
-		cupsSubscribersMutex.Unlock()
+		cupsSubscribers.Store(clientID+"-cups", true)
+		count := cupsSubscriberCount.Add(1)
 
-		if wasEmpty {
+		if count == 1 {
 			if err := InitializeCupsManager(); err != nil {
 				log.Warnf("Failed to initialize CUPS manager for subscription: %v", err)
 			} else {
@@ -748,13 +738,10 @@ func handleSubscribe(conn net.Conn, req models.Request) {
 				defer wg.Done()
 				defer func() {
 					cupsManager.Unsubscribe(clientID + "-cups")
+					cupsSubscribers.Delete(clientID + "-cups")
+					count := cupsSubscriberCount.Add(-1)
 
-					cupsSubscribersMutex.Lock()
-					delete(cupsSubscribers, clientID+"-cups")
-					isEmpty := len(cupsSubscribers) == 0
-					cupsSubscribersMutex.Unlock()
-
-					if isEmpty {
+					if count == 0 {
 						log.Info("Last CUPS subscriber disconnected, shutting down CUPS manager")
 						if cupsManager != nil {
 							cupsManager.Close()
@@ -822,7 +809,16 @@ func handleSubscribe(conn net.Conn, req models.Request) {
 		}()
 	}
 
-	if shouldSubscribe("extworkspace") && extWorkspaceManager != nil {
+	if shouldSubscribe("extworkspace") {
+		if extWorkspaceManager == nil {
+			if err := InitializeExtWorkspaceManager(); err != nil {
+				log.Warnf("Failed to initialize ExtWorkspace manager for subscription: %v", err)
+			} else {
+				notifyCapabilityChange()
+			}
+		}
+
+		if extWorkspaceManager != nil {
 			wg.Add(1)
 			extWorkspaceChan := extWorkspaceManager.Subscribe(clientID + "-extworkspace")
 			go func() {
@@ -853,6 +849,7 @@ func handleSubscribe(conn net.Conn, req models.Request) {
 				}
 			}()
 		}
+	}
 
 	if shouldSubscribe("brightness") && brightnessManager != nil {
 		wg.Add(2)
@@ -1244,10 +1241,6 @@ func Start(printDocs bool) error {
 		log.Debugf("DWL manager unavailable: %v", err)
 	}
 
-	if err := InitializeExtWorkspaceManager(); err != nil {
-		log.Debugf("ExtWorkspace manager unavailable: %v", err)
-	}
-
 	if err := InitializeWlrOutputManager(); err != nil {
 		log.Debugf("WlrOutput manager unavailable: %v", err)
 	}

core/internal/server/wayland/manager.go

@@ -8,8 +8,8 @@ import (
 	"syscall"
 	"time"
 
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 	"github.com/godbus/dbus/v5"
-	wlclient "github.com/yaslama/go-wayland/wayland/client"
 	"golang.org/x/sys/unix"
 
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/errdefs"
@@ -30,7 +30,7 @@ func NewManager(display *wlclient.Display, config Config) (*Manager, error) {
 		cmdq:          make(chan cmd, 128),
 		stopChan:      make(chan struct{}),
 		updateTrigger: make(chan struct{}, 1),
-		subscribers:    make(map[string]chan State),
+
 		dirty:          make(chan struct{}, 1),
 		dbusSignal:     make(chan *dbus.Signal, 16),
 		transitionChan: make(chan int, 1),
@@ -935,28 +935,22 @@ func (m *Manager) notifier() {
 			if !pending {
 				continue
 			}
-			m.subMutex.RLock()
-			if len(m.subscribers) == 0 {
-				m.subMutex.RUnlock()
-				pending = false
-				continue
-			}
 
 			currentState := m.GetState()
 
 			if m.lastNotified != nil && !stateChanged(m.lastNotified, &currentState) {
-				m.subMutex.RUnlock()
 				pending = false
 				continue
 			}
 
-			for _, ch := range m.subscribers {
+			m.subscribers.Range(func(key, value interface{}) bool {
+				ch := value.(chan State)
 				select {
 				case ch <- currentState:
 				default:
 				}
-			}
-			m.subMutex.RUnlock()
+				return true
+			})
 
 			stateCopy := currentState
 			m.lastNotified = &stateCopy
@@ -1332,12 +1326,12 @@ func (m *Manager) Close() {
 	m.wg.Wait()
 	m.notifierWg.Wait()
 
-	m.subMutex.Lock()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan State)
 		close(ch)
-	}
-	m.subscribers = make(map[string]chan State)
-	m.subMutex.Unlock()
+		m.subscribers.Delete(key)
+		return true
+	})
 
 	m.outputsMutex.Lock()
 	for _, out := range m.outputs {

core/internal/server/wayland/types.go

@@ -6,8 +6,8 @@ import (
 	"time"
 
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/errdefs"
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 	"github.com/godbus/dbus/v5"
-	wlclient "github.com/yaslama/go-wayland/wayland/client"
 )
 
 type Config struct {
@@ -69,8 +69,7 @@ type Manager struct {
 	cachedIPLon   *float64
 	locationMutex sync.RWMutex
 
-	subscribers  map[string]chan State
-	subMutex     sync.RWMutex
+	subscribers  sync.Map
 	dirty        chan struct{}
 	notifierWg   sync.WaitGroup
 	lastNotified *State
@@ -147,19 +146,14 @@ func (m *Manager) GetState() State {
 
 func (m *Manager) Subscribe(id string) chan State {
 	ch := make(chan State, 64)
-	m.subMutex.Lock()
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+	m.subscribers.Store(id, ch)
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan State))
 	}
-	m.subMutex.Unlock()
 }
 
 func (m *Manager) notifySubscribers() {

core/internal/server/wlcontext/context.go

@@ -6,7 +6,7 @@ import (
 
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/errdefs"
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/log"
-	wlclient "github.com/yaslama/go-wayland/wayland/client"
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 )
 
 type SharedContext struct {

core/internal/server/wlroutput/handlers.go

@@ -154,14 +154,14 @@ func (m *Manager) ApplyConfiguration(heads []HeadConfig, test bool) error {
 			statusChan <- fmt.Errorf("configuration cancelled (outdated serial)")
 		})
 
-		m.headsMutex.RLock()
 		headsByName := make(map[string]*headState)
-		for _, head := range m.heads {
+		m.heads.Range(func(key, value interface{}) bool {
+			head := value.(*headState)
 			if !head.finished {
 				headsByName[head.name] = head
 			}
-		}
-		m.headsMutex.RUnlock()
+			return true
+		})
 
 		for _, headCfg := range heads {
 			head, exists := headsByName[headCfg.Name]
@@ -188,15 +188,14 @@ func (m *Manager) ApplyConfiguration(heads []HeadConfig, test bool) error {
 			}
 
 			if headCfg.ModeID != nil {
-				m.modesMutex.RLock()
-				mode, exists := m.modes[*headCfg.ModeID]
-				m.modesMutex.RUnlock()
+				val, exists := m.modes.Load(*headCfg.ModeID)
 
 				if !exists {
 					config.Destroy()
 					resultChan <- fmt.Errorf("mode not found: %d", *headCfg.ModeID)
 					return
 				}
+				mode := val.(*modeState)
 
 				if err := headConfig.SetMode(mode.handle); err != nil {
 					config.Destroy()

core/internal/server/wlroutput/manager.go

@@ -6,18 +6,15 @@ import (
 
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/log"
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/proto/wlr_output_management"
-	wlclient "github.com/yaslama/go-wayland/wayland/client"
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 )
 
 func NewManager(display *wlclient.Display) (*Manager, error) {
 	m := &Manager{
 		display:    display,
 		ctx:        display.Context(),
-		heads:       make(map[uint32]*headState),
-		modes:       make(map[uint32]*modeState),
 		cmdq:       make(chan cmd, 128),
 		stopChan:   make(chan struct{}),
-		subscribers: make(map[string]chan State),
 		dirty:      make(chan struct{}, 1),
 		fatalError: make(chan error, 1),
 	}
@@ -143,9 +140,7 @@ func (m *Manager) handleHead(e wlr_output_management.ZwlrOutputManagerV1HeadEven
 		modeIDs: make([]uint32, 0),
 	}
 
-	m.headsMutex.Lock()
-	m.heads[headID] = head
-	m.headsMutex.Unlock()
+	m.heads.Store(headID, head)
 
 	handle.SetNameHandler(func(e wlr_output_management.ZwlrOutputHeadV1NameEvent) {
 		log.Debugf("WlrOutput: Head %d name: %s", headID, e.Name)
@@ -254,9 +249,7 @@ func (m *Manager) handleHead(e wlr_output_management.ZwlrOutputManagerV1HeadEven
 		log.Debugf("WlrOutput: Head %d finished", headID)
 		head.finished = true
 
-		m.headsMutex.Lock()
-		delete(m.heads, headID)
-		m.headsMutex.Unlock()
+		m.heads.Delete(headID)
 
 		m.post(func() {
 			m.wlMutex.Lock()
@@ -279,15 +272,13 @@ func (m *Manager) handleMode(headID uint32, e wlr_output_management.ZwlrOutputHe
 		handle: handle,
 	}
 
-	m.modesMutex.Lock()
-	m.modes[modeID] = mode
-	m.modesMutex.Unlock()
+	m.modes.Store(modeID, mode)
 
-	m.headsMutex.Lock()
-	if head, ok := m.heads[headID]; ok {
+	if val, ok := m.heads.Load(headID); ok {
+		head := val.(*headState)
 		head.modeIDs = append(head.modeIDs, modeID)
+		m.heads.Store(headID, head)
 	}
-	m.headsMutex.Unlock()
 
 	handle.SetSizeHandler(func(e wlr_output_management.ZwlrOutputModeV1SizeEvent) {
 		log.Debugf("WlrOutput: Mode %d size: %dx%d", modeID, e.Width, e.Height)
@@ -318,9 +309,7 @@ func (m *Manager) handleMode(headID uint32, e wlr_output_management.ZwlrOutputHe
 		log.Debugf("WlrOutput: Mode %d finished", modeID)
 		mode.finished = true
 
-		m.modesMutex.Lock()
-		delete(m.modes, modeID)
-		m.modesMutex.Unlock()
+		m.modes.Delete(modeID)
 
 		m.post(func() {
 			m.wlMutex.Lock()
@@ -333,22 +322,24 @@ func (m *Manager) handleMode(headID uint32, e wlr_output_management.ZwlrOutputHe
 }
 
 func (m *Manager) updateState() {
-	m.headsMutex.RLock()
-	m.modesMutex.RLock()
-
 	outputs := make([]Output, 0)
 
-	for _, head := range m.heads {
+	m.heads.Range(func(key, value interface{}) bool {
+		head := value.(*headState)
 		if head.finished {
-			continue
+			return true
 		}
 
 		modes := make([]OutputMode, 0)
 		var currentMode *OutputMode
 
 		for _, modeID := range head.modeIDs {
-			mode, exists := m.modes[modeID]
-			if !exists || mode.finished {
+			val, exists := m.modes.Load(modeID)
+			if !exists {
+				continue
+			}
+			mode := val.(*modeState)
+			if mode.finished {
 				continue
 			}
 
@@ -385,10 +376,8 @@ func (m *Manager) updateState() {
 			ID:             head.id,
 		}
 		outputs = append(outputs, output)
-	}
-
-	m.modesMutex.RUnlock()
-	m.headsMutex.RUnlock()
+		return true
+	})
 
 	newState := State{
 		Outputs: outputs,
@@ -442,14 +431,6 @@ func (m *Manager) notifier() {
 			if !pending {
 				continue
 			}
-			m.subMutex.RLock()
-			subCount := len(m.subscribers)
-			m.subMutex.RUnlock()
-
-			if subCount == 0 {
-				pending = false
-				continue
-			}
 
 			currentState := m.GetState()
 
@@ -458,15 +439,15 @@ func (m *Manager) notifier() {
 				continue
 			}
 
-			m.subMutex.RLock()
-			for _, ch := range m.subscribers {
+			m.subscribers.Range(func(key, value interface{}) bool {
+				ch := value.(chan State)
 				select {
 				case ch <- currentState:
 				default:
 					log.Warn("WlrOutput: subscriber channel full, dropping update")
 				}
-			}
-			m.subMutex.RUnlock()
+				return true
+			})
 
 			stateCopy := currentState
 			m.lastNotified = &stateCopy
@@ -480,30 +461,30 @@ func (m *Manager) Close() {
 	m.wg.Wait()
 	m.notifierWg.Wait()
 
-	m.subMutex.Lock()
-	for _, ch := range m.subscribers {
+	m.subscribers.Range(func(key, value interface{}) bool {
+		ch := value.(chan State)
 		close(ch)
-	}
-	m.subscribers = make(map[string]chan State)
-	m.subMutex.Unlock()
+		m.subscribers.Delete(key)
+		return true
+	})
 
-	m.modesMutex.Lock()
-	for _, mode := range m.modes {
+	m.modes.Range(func(key, value interface{}) bool {
+		mode := value.(*modeState)
 		if mode.handle != nil {
 			mode.handle.Release()
 		}
-	}
-	m.modes = make(map[uint32]*modeState)
-	m.modesMutex.Unlock()
+		m.modes.Delete(key)
+		return true
+	})
 
-	m.headsMutex.Lock()
-	for _, head := range m.heads {
+	m.heads.Range(func(key, value interface{}) bool {
+		head := value.(*headState)
 		if head.handle != nil {
 			head.handle.Release()
 		}
-	}
-	m.heads = make(map[uint32]*headState)
-	m.headsMutex.Unlock()
+		m.heads.Delete(key)
+		return true
+	})
 
 	if m.manager != nil {
 		m.manager.Stop()

core/internal/server/wlroutput/types.go

@@ -4,7 +4,7 @@ import (
 	"sync"
 
 	"github.com/AvengeMedia/DankMaterialShell/core/internal/proto/wlr_output_management"
-	wlclient "github.com/yaslama/go-wayland/wayland/client"
+	wlclient "github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
 )
 
 type OutputMode struct {
@@ -49,11 +49,8 @@ type Manager struct {
 	registry *wlclient.Registry
 	manager  *wlr_output_management.ZwlrOutputManagerV1
 
-	headsMutex sync.RWMutex
-	heads      map[uint32]*headState
-
-	modesMutex sync.RWMutex
-	modes      map[uint32]*modeState
+	heads sync.Map // map[uint32]*headState
+	modes sync.Map // map[uint32]*modeState
 
 	serial uint32
 
@@ -62,8 +59,7 @@ type Manager struct {
 	stopChan chan struct{}
 	wg       sync.WaitGroup
 
-	subscribers  map[string]chan State
-	subMutex     sync.RWMutex
+	subscribers  sync.Map
 	dirty        chan struct{}
 	notifierWg   sync.WaitGroup
 	lastNotified *State
@@ -120,19 +116,19 @@ func (m *Manager) GetState() State {
 
 func (m *Manager) Subscribe(id string) chan State {
 	ch := make(chan State, 64)
-	m.subMutex.Lock()
-	m.subscribers[id] = ch
-	m.subMutex.Unlock()
+
+	m.subscribers.Store(id, ch)
+
 	return ch
 }
 
 func (m *Manager) Unsubscribe(id string) {
-	m.subMutex.Lock()
-	if ch, ok := m.subscribers[id]; ok {
-		close(ch)
-		delete(m.subscribers, id)
+
+	if val, ok := m.subscribers.LoadAndDelete(id); ok {
+		close(val.(chan State))
+
 	}
-	m.subMutex.Unlock()
+
 }
 
 func (m *Manager) notifySubscribers() {

core/pkg/go-wayland/AUTHORS

@@ -0,0 +1,3 @@
+// Keep this sorted
+
+rajveermalviya

core/pkg/go-wayland/LICENSE

@@ -0,0 +1,24 @@
+Copyright 2021 go-wayland authors
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

core/pkg/go-wayland/README.md

@@ -0,0 +1,25 @@
+# Wayland implementation in Go
+
+[![Go Reference](https://pkg.go.dev/badge/github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland.svg)](https://pkg.go.dev/github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland)
+
+This module contains pure Go implementation of the Wayland protocol.
+Currently only wayland-client functionality is supported.
+
+Go code is generated from protocol XML files using
+[`go-wayland-scanner`](cmd/go-wayland-scanner/scanner.go).
+
+To load cursor, minimal port of `wayland-cursor` & `xcursor` in pure Go
+is located at [`wayland/cursor`](wayland/cursor) & [`wayland/cursor/xcursor`](wayland/cursor/xcursor)
+respectively.
+
+To demonstrate the functionality of this module
+[`examples/imageviewer`](examples/imageviewer) contains a simple image
+viewer. It demos displaying a top-level window, resizing of window,
+cursor themes, pointer and keyboard. Because it's in pure Go, it can be
+compiled without CGO. You can try it using the following commands:
+
+```sh
+CGO_ENABLED=0 go install github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/examples/imageviewer@latest
+
+imageviewer file.jpg
+```

core/pkg/go-wayland/generate

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+cd ./wayland
+go generate -x ./...

core/pkg/go-wayland/generatep

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Runs go generate for each directory, but in parallel. Any arguments are appended to the
+# go generate command.
+# Usage: $ ./generatep [go generate arguments]
+# Print all generate commands: $ ./generatep -x
+
+cd ./wayland
+find . -type f -name '*.go' -exec dirname {} \; | sort -u | parallel -j 0 go generate $1 {}/.

core/pkg/go-wayland/wayland/client/common.go

@@ -0,0 +1,33 @@
+package client
+
+type Dispatcher interface {
+	Dispatch(opcode uint32, fd int, data []byte)
+}
+
+type Proxy interface {
+	Context() *Context
+	SetContext(ctx *Context)
+	ID() uint32
+	SetID(id uint32)
+}
+
+type BaseProxy struct {
+	ctx *Context
+	id  uint32
+}
+
+func (p *BaseProxy) ID() uint32 {
+	return p.id
+}
+
+func (p *BaseProxy) SetID(id uint32) {
+	p.id = id
+}
+
+func (p *BaseProxy) Context() *Context {
+	return p.ctx
+}
+
+func (p *BaseProxy) SetContext(ctx *Context) {
+	p.ctx = ctx
+}

core/pkg/go-wayland/wayland/client/context.go

@@ -0,0 +1,110 @@
+package client
+
+import (
+	"errors"
+	"fmt"
+	"net"
+	"os"
+	"sync"
+)
+
+type Context struct {
+	conn      *net.UnixConn
+	objects   sync.Map // map[uint32]Proxy - thread-safe concurrent map
+	currentID uint32
+	idMu      sync.Mutex // protects currentID increment
+}
+
+func (ctx *Context) Register(p Proxy) {
+	ctx.idMu.Lock()
+	ctx.currentID++
+	id := ctx.currentID
+	ctx.idMu.Unlock()
+
+	p.SetID(id)
+	p.SetContext(ctx)
+	ctx.objects.Store(id, p)
+}
+
+func (ctx *Context) Unregister(p Proxy) {
+	ctx.objects.Delete(p.ID())
+}
+
+func (ctx *Context) GetProxy(id uint32) Proxy {
+	if val, ok := ctx.objects.Load(id); ok {
+		return val.(Proxy)
+	}
+	return nil
+}
+
+func (ctx *Context) Close() error {
+	return ctx.conn.Close()
+}
+
+// Dispatch reads and processes incoming messages and calls [client.Dispatcher.Dispatch] on the
+// respective wayland protocol.
+// Dispatch must be called on the same goroutine as other interactions with the Context.
+// If a multi goroutine approach is desired, use [Context.GetDispatch] instead.
+// Dispatch blocks if there are no incoming messages.
+// A Dispatch loop is usually used to handle incoming messages.
+func (ctx *Context) Dispatch() error {
+	return ctx.GetDispatch()()
+}
+
+var ErrDispatchSenderNotFound = errors.New("dispatch: unable to find sender")
+var ErrDispatchSenderUnsupported = errors.New("dispatch: sender does not implement Dispatch method")
+var ErrDispatchUnableToReadMsg = errors.New("dispatch: unable to read msg")
+
+// GetDispatch reads incoming messages and returns the dispatch function which calls
+// [client.Dispatcher.Dispatch] on the respective wayland protocol.
+// This function is now thread-safe and can be called from multiple goroutines.
+// GetDispatch blocks if there are no incoming messages.
+func (ctx *Context) GetDispatch() func() error {
+	senderID, opcode, fd, data, err := ctx.ReadMsg() // Blocks if there are no incoming messages
+	if err != nil {
+		return func() error {
+			return fmt.Errorf("%w: %w", ErrDispatchUnableToReadMsg, err)
+		}
+	}
+
+	return func() error {
+		val, ok := ctx.objects.Load(senderID)
+		if !ok {
+			return fmt.Errorf("%w (senderID=%d)", ErrDispatchSenderNotFound, senderID)
+		}
+
+		sender, ok := val.(Dispatcher)
+		if !ok {
+			return fmt.Errorf("%w (senderID=%d)", ErrDispatchSenderUnsupported, senderID)
+		}
+
+		sender.Dispatch(opcode, fd, data)
+		return nil
+	}
+}
+
+func Connect(addr string) (*Display, error) {
+	if addr == "" {
+		runtimeDir := os.Getenv("XDG_RUNTIME_DIR")
+		if runtimeDir == "" {
+			return nil, errors.New("env XDG_RUNTIME_DIR not set")
+		}
+		if addr == "" {
+			addr = os.Getenv("WAYLAND_DISPLAY")
+		}
+		if addr == "" {
+			addr = "wayland-0"
+		}
+		addr = runtimeDir + "/" + addr
+	}
+
+	ctx := &Context{}
+
+	conn, err := net.DialUnix("unix", nil, &net.UnixAddr{Name: addr, Net: "unix"})
+	if err != nil {
+		return nil, err
+	}
+	ctx.conn = conn
+
+	return NewDisplay(ctx), nil
+}

core/pkg/go-wayland/wayland/client/context_test.go

@@ -0,0 +1,111 @@
+package client_test
+
+import (
+	"errors"
+	"fmt"
+	"log"
+
+	"github.com/AvengeMedia/DankMaterialShell/core/pkg/go-wayland/wayland/client"
+)
+
+// Shows a dispatch loop that will block the goroutine.
+// This approach has no risk of data races but the loop blocks the goroutine when no messages are
+// received. This can be a valid approach if there are no more changes that need to be made after
+// setting up and starting the loop.
+// For a multi goroutine approach, use [client.Context.GetDispatch].
+func ExampleContext_Dispatch() {
+	display, err := client.Connect("")
+	if err != nil {
+		log.Fatalf("Error connecting to Wayland server: %v", err)
+	}
+
+	registry, err := display.GetRegistry()
+	if err != nil {
+		log.Fatalf("Error getting Wayland registry: %v", err)
+	}
+
+	var seat *client.Seat
+	registry.SetGlobalHandler(func(e client.RegistryGlobalEvent) {
+		switch e.Interface {
+		case client.SeatInterfaceName:
+			seat = client.NewSeat(display.Context())
+			err := registry.Bind(e.Name, e.Interface, e.Version, seat)
+			if err != nil {
+				log.Fatalf("unable to bind %s interface: %v", client.SeatInterfaceName, err)
+			}
+		}
+	})
+	display.Roundtrip()
+	display.Roundtrip()
+
+	keyboard, err := seat.GetKeyboard()
+	if err != nil {
+		log.Printf("Error getting keyboard: %v", err)
+	}
+	log.Printf("Got keyboard: %v\n", keyboard)
+
+	for {
+		err := display.Context().Dispatch()
+		if err != nil {
+			log.Printf("Dispatch error: %v\n", err)
+		}
+	}
+}
+
+// Shows how the dispatch loop can be done in another goroutine.
+// This prevents the goroutine from being blocked and allows making changes to wayland objects while
+// the dispatch loop is blocking another goroutine.
+func ExampleContext_GetDispatch() {
+	display, err := client.Connect("")
+	if err != nil {
+		log.Fatalf("Error connecting to Wayland server: %v", err)
+	}
+
+	registry, err := display.GetRegistry()
+	if err != nil {
+		log.Fatalf("Error getting Wayland registry: %v", err)
+	}
+
+	var seat *client.Seat
+	registry.SetGlobalHandler(func(e client.RegistryGlobalEvent) {
+		switch e.Interface {
+		case client.SeatInterfaceName:
+			seat = client.NewSeat(display.Context())
+			err := registry.Bind(e.Name, e.Interface, e.Version, seat)
+			if err != nil {
+				log.Fatalf("unable to bind %s interface: %v", client.SeatInterfaceName, err)
+			}
+		}
+	})
+	display.Roundtrip()
+	display.Roundtrip()
+	dispatchQueue := make(chan func() error)
+
+	go func() {
+		for {
+			dispatchQueue <- display.Context().GetDispatch()
+		}
+	}()
+
+	keyboard, err := seat.GetKeyboard()
+	if err != nil {
+		log.Printf("Error getting keyboard: %v", err)
+	}
+	log.Printf("Got keyboard: %v\n", keyboard)
+
+	err = errors.Join(keyboard.Release(), seat.Release(), display.Context().Close())
+	if err != nil {
+		fmt.Printf("Error cleaning up: %v\n", err)
+	}
+
+	for {
+		select {
+		// Add other cases here to do other things
+		case dispatchFunc := <-dispatchQueue:
+			err := dispatchFunc()
+			if err != nil {
+				log.Printf("Dispatch error: %v\n", err)
+			}
+		}
+	}
+}

core/pkg/go-wayland/wayland/client/display.go

@@ -0,0 +1,37 @@
+package client
+
+import (
+	"fmt"
+	"log"
+)
+
+// Roundtrip blocks until all pending request are processed by the server.
+// It is the implementation of [wl_display_roundtrip].
+//
+// [wl_display_roundtrip]: https://wayland.freedesktop.org/docs/html/apb.html#Client-classwl__display_1ab60f38c2f80980ac84f347e932793390
+func (i *Display) Roundtrip() error {
+	callback, err := i.Sync()
+	if err != nil {
+		return fmt.Errorf("unable to get sync callback: %w", err)
+	}
+	defer func() {
+		if err2 := callback.Destroy(); err2 != nil {
+			log.Printf("unable to destroy callback: %v\n", err2)
+		}
+	}()
+
+	done := false
+	callback.SetDoneHandler(func(_ CallbackDoneEvent) {
+		done = true
+	})
+
+	// Wait for callback to return
+	for !done {
+		err := i.Context().GetDispatch()()
+		if err != nil {
+			return fmt.Errorf("roundtrip: failed to dispatch: %w", err)
+		}
+	}
+
+	return nil
+}

core/pkg/go-wayland/wayland/client/doc.go

@@ -0,0 +1,6 @@
+// Package client is Go port of wayland-client library
+// for writing pure Go GUI software for wayland supported
+// platforms.
+package client
+
+//go:generate go run github.com/yaslama/go-wayland/cmd/go-wayland-scanner -pkg client -prefix wl -o client.go -i https://gitlab.freedesktop.org/wayland/wayland/-/raw/1.23.0/protocol/wayland.xml?ref_type=tags

core/pkg/go-wayland/wayland/client/event.go

@@ -0,0 +1,120 @@
+package client
+
+import (
+	"bytes"
+	"fmt"
+	"unsafe"
+
+	"golang.org/x/sys/unix"
+
+	_ "unsafe"
+)
+
+var oobSpace = unix.CmsgSpace(4)
+
+func (ctx *Context) ReadMsg() (senderID uint32, opcode uint32, fd int, msg []byte, err error) {
+	fd = -1
+
+	oob := make([]byte, oobSpace)
+	header := make([]byte, 8)
+
+	n, oobn, _, _, err := ctx.conn.ReadMsgUnix(header, oob)
+	if err != nil {
+		return senderID, opcode, fd, msg, err
+	}
+	if n != 8 {
+		return senderID, opcode, fd, msg, fmt.Errorf("ctx.ReadMsg: incorrect number of bytes read for header (n=%d)", n)
+	}
+
+	if oobn > 0 {
+		fds, err := getFdsFromOob(oob, oobn, "header")
+		if err != nil {
+			return senderID, opcode, fd, msg, fmt.Errorf("ctx.ReadMsg: %w", err)
+		}
+
+		if len(fds) > 0 {
+			fd = fds[0]
+		}
+	}
+
+	senderID = Uint32(header[:4])
+	opcodeAndSize := Uint32(header[4:8])
+	opcode = opcodeAndSize & 0xffff
+	size := opcodeAndSize >> 16
+
+	msgSize := int(size) - 8
+	if msgSize == 0 {
+		return senderID, opcode, fd, nil, nil
+	}
+
+	msg = make([]byte, msgSize)
+
+	if fd == -1 {
+		// if something was read before, then zero it out
+		if oobn > 0 {
+			oob = make([]byte, oobSpace)
+		}
+
+		n, oobn, _, _, err = ctx.conn.ReadMsgUnix(msg, oob)
+	} else {
+		n, err = ctx.conn.Read(msg)
+	}
+	if err != nil {
+		return senderID, opcode, fd, msg, fmt.Errorf("ctx.ReadMsg: %w", err)
+	}
+	if n != msgSize {
+		return senderID, opcode, fd, msg, fmt.Errorf("ctx.ReadMsg: incorrect number of bytes read for msg (n=%d, msgSize=%d)", n, msgSize)
+	}
+
+	if fd == -1 && oobn > 0 {
+		fds, err := getFdsFromOob(oob, oobn, "msg")
+		if err != nil {
+			return senderID, opcode, fd, msg, fmt.Errorf("ctx.ReadMsg: %w", err)
+		}
+
+		if len(fds) > 0 {
+			fd = fds[0]
+		}
+	}
+
+	return senderID, opcode, fd, msg, nil
+}
+
+func getFdsFromOob(oob []byte, oobn int, source string) ([]int, error) {
+	if oobn > len(oob) {
+		return nil, fmt.Errorf("getFdsFromOob: incorrect number of bytes read from %s for oob (oobn=%d)", source, oobn)
+	}
+	scms, err := unix.ParseSocketControlMessage(oob)
+	if err != nil {
+		return nil, fmt.Errorf("getFdsFromOob: unable to parse control message from %s: %w", source, err)
+	}
+
+	var fdsRet []int
+	for _, scm := range scms {
+		fds, err := unix.ParseUnixRights(&scm)
+		if err != nil {
+			return nil, fmt.Errorf("getFdsFromOob: unable to parse unix rights from %s: %w", source, err)
+		}
+
+		fdsRet = append(fdsRet, fds...)
+	}
+
+	return fdsRet, nil
+}
+
+func Uint32(src []byte) uint32 {
+	_ = src[3]
+	return *(*uint32)(unsafe.Pointer(&src[0]))
+}
+
+func String(src []byte) string {
+	idx := bytes.IndexByte(src, 0)
+	src = src[:idx:idx]
+	return *(*string)(unsafe.Pointer(&src))
+}
+
+func Fixed(src []byte) float64 {
+	_ = src[3]
+	fx := *(*int32)(unsafe.Pointer(&src[0]))
+	return fixedToFloat64(fx)
+}

core/pkg/go-wayland/wayland/client/request.go

@@ -0,0 +1,44 @@
+package client
+
+import (
+	"fmt"
+	"unsafe"
+)
+
+func (ctx *Context) WriteMsg(b []byte, oob []byte) error {
+	n, oobn, err := ctx.conn.WriteMsgUnix(b, oob, nil)
+	if err != nil {
+		return err
+	}
+	if n != len(b) || oobn != len(oob) {
+		return fmt.Errorf("ctx.WriteMsg: incorrect number of bytes written (n=%d oobn=%d)", n, oobn)
+	}
+
+	return nil
+}
+
+func PutUint32(dst []byte, v uint32) {
+	_ = dst[3]
+	*(*uint32)(unsafe.Pointer(&dst[0])) = v
+}
+
+func PutFixed(dst []byte, f float64) {
+	fx := fixedFromfloat64(f)
+	_ = dst[3]
+	*(*int32)(unsafe.Pointer(&dst[0])) = fx
+}
+
+// PutString places a string in Wayland's wire format on the destination buffer.
+// It first places the length of the string (plus one for the null terminator) and then the string
+// followed by a null byte.
+// The length of dst must be equal to, or greater than, len(v) + 5.
+func PutString(dst []byte, v string) {
+	PutUint32(dst[:4], uint32(len(v)+1))
+	copy(dst[4:], v)
+	dst[4+len(v)] = '\x00' // To cause panic if dst is not large enough
+}
+
+func PutArray(dst []byte, a []byte) {
+	PutUint32(dst[:4], uint32(len(a)))
+	copy(dst[4:], a)
+}

core/pkg/go-wayland/wayland/client/util.go

@@ -0,0 +1,24 @@
+package client
+
+import "math"
+
+// From wayland/wayland-util.h
+
+func fixedToFloat64(f int32) float64 {
+	u_i := (1023+44)<<52 + (1 << 51) + int64(f)
+	u_d := math.Float64frombits(uint64(u_i))
+	return u_d - (3 << 43)
+}
+
+func fixedFromfloat64(d float64) int32 {
+	u_d := d + (3 << (51 - 8))
+	u_i := int64(math.Float64bits(u_d))
+	return int32(u_i)
+}
+
+func PaddedLen(l int) int {
+	if (l & 0x3) != 0 {
+		return l + (4 - (l & 0x3))
+	}
+	return l
+}