compiler: build separation runtime with clite

runtime/internal/lib/sync/sync.go

@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sync
+
+// llgo:skipall
+import (
+	gosync "sync"
+	"unsafe"
+
+	c "github.com/goplus/llgo/runtime/internal/clite"
+	"github.com/goplus/llgo/runtime/internal/clite/pthread/sync"
+)
+
+// -----------------------------------------------------------------------------
+
+type Mutex sync.Mutex
+
+func (m *Mutex) Lock() {
+	if *(*c.Long)(unsafe.Pointer(m)) == 0 {
+		(*sync.Mutex)(m).Init(nil) // TODO(xsw): finalize
+	}
+	(*sync.Mutex)(m).Lock()
+}
+
+func (m *Mutex) TryLock() bool {
+	if *(*c.Long)(unsafe.Pointer(m)) == 0 {
+		(*sync.Mutex)(m).Init(nil)
+	}
+	return (*sync.Mutex)(m).TryLock() == 0
+}
+
+// llgo:link (*Mutex).Unlock C.pthread_mutex_unlock
+func (m *Mutex) Unlock() {}
+
+// -----------------------------------------------------------------------------
+
+type RWMutex sync.RWLock
+
+func (rw *RWMutex) RLock() {
+	if *(*c.Long)(unsafe.Pointer(rw)) == 0 {
+		(*sync.RWLock)(rw).Init(nil)
+	}
+	(*sync.RWLock)(rw).RLock()
+}
+
+func (rw *RWMutex) TryRLock() bool {
+	if *(*c.Long)(unsafe.Pointer(rw)) == 0 {
+		(*sync.RWLock)(rw).Init(nil)
+	}
+	return (*sync.RWLock)(rw).TryRLock() == 0
+}
+
+// llgo:link (*RWMutex).RUnlock C.pthread_rwlock_unlock
+func (rw *RWMutex) RUnlock() {}
+
+func (rw *RWMutex) Lock() {
+	if *(*c.Long)(unsafe.Pointer(rw)) == 0 {
+		(*sync.RWLock)(rw).Init(nil)
+	}
+	(*sync.RWLock)(rw).Lock()
+}
+
+func (rw *RWMutex) TryLock() bool {
+	if *(*c.Long)(unsafe.Pointer(rw)) == 0 {
+		(*sync.RWLock)(rw).Init(nil)
+	}
+	return (*sync.RWLock)(rw).TryLock() == 0
+}
+
+// llgo:link (*RWMutex).Unlock C.pthread_rwlock_unlock
+func (rw *RWMutex) Unlock() {}
+
+// -----------------------------------------------------------------------------
+
+type Once struct {
+	m    Mutex
+	done bool
+}
+
+func (o *Once) Do(f func()) {
+	if !o.done {
+		o.m.Lock()
+		if !o.done {
+			o.done = true
+			f()
+		}
+		o.m.Unlock()
+	}
+}
+
+// -----------------------------------------------------------------------------
+
+type Cond struct {
+	cond sync.Cond
+	m    *sync.Mutex
+}
+
+func NewCond(l gosync.Locker) *Cond {
+	ret := &Cond{m: l.(*sync.Mutex)}
+	ret.cond.Init(nil) // TODO(xsw): finalize
+	return ret
+}
+
+// llgo:link (*Cond).Signal C.pthread_cond_signal
+func (c *Cond) Signal() {}
+
+// llgo:link (*Cond).Broadcast C.pthread_cond_broadcast
+func (c *Cond) Broadcast() {}
+
+func (c *Cond) Wait() {
+	c.cond.Wait(c.m)
+}
+
+// -----------------------------------------------------------------------------
+
+type WaitGroup struct {
+	mutex sync.Mutex
+	cond  sync.Cond
+	count int
+}
+
+func (wg *WaitGroup) doInit() {
+	wg.mutex.Init(nil)
+	wg.cond.Init(nil) // TODO(xsw): finalize
+}
+
+func (wg *WaitGroup) Add(delta int) {
+	if *(*c.Long)(unsafe.Pointer(wg)) == 0 {
+		wg.doInit()
+	}
+	wg.mutex.Lock()
+	wg.count += delta
+	if wg.count <= 0 {
+		wg.cond.Broadcast()
+	}
+	wg.mutex.Unlock()
+}
+
+func (wg *WaitGroup) Done() {
+	wg.Add(-1)
+}
+
+func (wg *WaitGroup) Wait() {
+	if *(*c.Long)(unsafe.Pointer(wg)) == 0 {
+		wg.doInit()
+	}
+	wg.mutex.Lock()
+	for wg.count > 0 {
+		wg.cond.Wait(&wg.mutex)
+	}
+	wg.mutex.Unlock()
+}
+
+// -----------------------------------------------------------------------------