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Name	Size	Permission
asm_386.s	5.27 KB	-rw-r--r--
asm_amd64.s	3.89 KB	-rw-r--r--
asm_arm.s	5.22 KB	-rw-r--r--
asm_arm64.s	1.63 KB	-rw-r--r--
asm_mips64x.s	3.96 KB	-rw-r--r--
asm_mipsx.s	2.88 KB	-rw-r--r--
asm_ppc64x.s	4.48 KB	-rw-r--r--
asm_s390x.s	4.79 KB	-rw-r--r--
atomic_386.go	1.62 KB	-rw-r--r--
atomic_amd64.go	1.73 KB	-rw-r--r--
atomic_arm.go	4.31 KB	-rw-r--r--
atomic_arm64.go	1.38 KB	-rw-r--r--
atomic_arm64.s	3.21 KB	-rw-r--r--
atomic_mips64x.go	1.45 KB	-rw-r--r--
atomic_mips64x.s	1.06 KB	-rw-r--r--
atomic_mipsx.go	2.49 KB	-rw-r--r--
atomic_mipsx.s	482 B	-rw-r--r--
atomic_ppc64x.go	1.45 KB	-rw-r--r--
atomic_ppc64x.s	1.34 KB	-rw-r--r--
atomic_riscv64.go	1.37 KB	-rw-r--r--
atomic_riscv64.s	5.48 KB	-rw-r--r--
atomic_s390x.go	1.68 KB	-rw-r--r--
atomic_test.go	5.1 KB	-rw-r--r--
atomic_wasm.go	3.69 KB	-rw-r--r--
bench_test.go	1.78 KB	-rw-r--r--
stubs.go	795 B	-rw-r--r--
sys_linux_arm.s	3.14 KB	-rw-r--r--
sys_nonlinux_arm.s	1.34 KB	-rw-r--r--

Code Editor : atomic_wasm.go

// Copyright 2018 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.

// TODO(neelance): implement with actual atomic operations as soon as threads are available
// See https://github.com/WebAssembly/design/issues/1073

// Export some functions via linkname to assembly in sync/atomic.
//go:linkname Load
//go:linkname Loadp
//go:linkname Load64
//go:linkname Loaduintptr
//go:linkname Xadd
//go:linkname Xadd64
//go:linkname Xadduintptr
//go:linkname Xchg
//go:linkname Xchg64
//go:linkname Xchguintptr
//go:linkname Cas
//go:linkname Cas64
//go:linkname Casuintptr
//go:linkname Store
//go:linkname Store64
//go:linkname Storeuintptr

package atomic

import "unsafe"

//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 Load8(ptr *uint8) uint8 {
	return *ptr
}

//go:nosplit
//go:noinline
func Load64(ptr *uint64) uint64 {
	return *ptr
}

//go:nosplit
//go:noinline
func Xadd(ptr *uint32, delta int32) uint32 {
	new := *ptr + uint32(delta)
	*ptr = new
	return new
}

//go:nosplit
//go:noinline
func Xadd64(ptr *uint64, delta int64) uint64 {
	new := *ptr + uint64(delta)
	*ptr = new
	return new
}

//go:nosplit
//go:noinline
func Xadduintptr(ptr *uintptr, delta uintptr) uintptr {
	new := *ptr + delta
	*ptr = new
	return new
}

//go:nosplit
//go:noinline
func Xchg(ptr *uint32, new uint32) uint32 {
	old := *ptr
	*ptr = new
	return old
}

//go:nosplit
//go:noinline
func Xchg64(ptr *uint64, new uint64) uint64 {
	old := *ptr
	*ptr = new
	return old
}

//go:nosplit
//go:noinline
func Xchguintptr(ptr *uintptr, new uintptr) uintptr {
	old := *ptr
	*ptr = new
	return old
}

//go:nosplit
//go:noinline
func And8(ptr *uint8, val uint8) {
	*ptr = *ptr & val
}

//go:nosplit
//go:noinline
func Or8(ptr *uint8, val uint8) {
	*ptr = *ptr | val
}

// NOTE: Do not add atomicxor8 (XOR is not idempotent).

//go:nosplit
//go:noinline
func Cas64(ptr *uint64, old, new uint64) bool {
	if *ptr == old {
		*ptr = new
		return true
	}
	return false
}

//go:nosplit
//go:noinline
func Store(ptr *uint32, val uint32) {
	*ptr = val
}

//go:nosplit
//go:noinline
func StoreRel(ptr *uint32, val uint32) {
	*ptr = val
}

//go:nosplit
//go:noinline
func Store8(ptr *uint8, val uint8) {
	*ptr = val
}

//go:nosplit
//go:noinline
func Store64(ptr *uint64, val uint64) {
	*ptr = val
}

//go:notinheap
type noWB struct{}

//go:noinline
//go:nosplit
func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer) {
	*(**noWB)(ptr) = (*noWB)(val)
}

//go:nosplit
//go:noinline
func Cas(ptr *uint32, old, new uint32) bool {
	if *ptr == old {
		*ptr = new
		return true
	}
	return false
}

//go:nosplit
//go:noinline
func Casp1(ptr *unsafe.Pointer, old, new unsafe.Pointer) bool {
	if *ptr == old {
		*ptr = new
		return true
	}
	return false
}

//go:nosplit
//go:noinline
func Casuintptr(ptr *uintptr, old, new uintptr) bool {
	if *ptr == old {
		*ptr = new
		return true
	}
	return false
}

//go:nosplit
//go:noinline
func CasRel(ptr *uint32, old, new uint32) bool {
	if *ptr == old {
		*ptr = new
		return true
	}
	return false
}

//go:nosplit
//go:noinline
func Storeuintptr(ptr *uintptr, new uintptr) {
	*ptr = new
}

//go:nosplit
//go:noinline
func Loaduintptr(ptr *uintptr) uintptr {
	return *ptr
}

//go:nosplit
//go:noinline
func Loaduint(ptr *uint) uint {
	return *ptr
}

//go:nosplit
//go:noinline
func Loadint64(ptr *int64) int64 {
	return *ptr
}

//go:nosplit
//go:noinline
func Xaddint64(ptr *int64, delta int64) int64 {
	new := *ptr + delta
	*ptr = new
	return new
}

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Code Editor : atomic_wasm.go