go atomic_386 源码
golang atomic_386 代码
文件路径：/src/runtime/internal/atomic/atomic_386.go
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build 386
package atomic
import "unsafe"
// Export some functions via linkname to assembly in sync/atomic.
//
//go:linkname Load
//go:linkname Loadp
//go:nosplit
//go:noinline
func Load(ptr *uint32) uint32 {
return *ptr
}
//go:nosplit
//go:noinline
func Loadp(ptr unsafe.Pointer) unsafe.Pointer {
return *(*unsafe.Pointer)(ptr)
}
//go:nosplit
//go:noinline
func LoadAcq(ptr *uint32) uint32 {
return *ptr
}
//go:nosplit
//go:noinline
func LoadAcquintptr(ptr *uintptr) uintptr {
return *ptr
}
//go:noescape
func Xadd64(ptr *uint64, delta int64) uint64
//go:noescape
func Xadduintptr(ptr *uintptr, delta uintptr) uintptr
//go:noescape
func Xadd(ptr *uint32, delta int32) uint32
//go:noescape
func Xchg64(ptr *uint64, new uint64) uint64
//go:noescape
func Xchg(ptr *uint32, new uint32) uint32
//go:noescape
func Xchguintptr(ptr *uintptr, new uintptr) uintptr
//go:noescape
func Load64(ptr *uint64) uint64
//go:nosplit
//go:noinline
func Load8(ptr *uint8) uint8 {
return *ptr
}
//go:noescape
func And8(ptr *uint8, val uint8)
//go:noescape
func Or8(ptr *uint8, val uint8)
//go:noescape
func And(ptr *uint32, val uint32)
//go:noescape
func Or(ptr *uint32, val uint32)
// NOTE: Do not add atomicxor8 (XOR is not idempotent).
//go:noescape
func Cas64(ptr *uint64, old, new uint64) bool
//go:noescape
func CasRel(ptr *uint32, old, new uint32) bool
//go:noescape
func Store(ptr *uint32, val uint32)
//go:noescape
func Store8(ptr *uint8, val uint8)
//go:noescape
func Store64(ptr *uint64, val uint64)
//go:noescape
func StoreRel(ptr *uint32, val uint32)
//go:noescape
func StoreReluintptr(ptr *uintptr, val uintptr)
// NO go:noescape annotation; see atomic_pointer.go.
func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer)
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