Source file src/runtime/internal/atomic/atomic_andor_generic.go

Documentation: runtime/internal/atomic

     1  // Copyright 2023 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build arm || s390x || loong64 || mips || mipsle || mips64 || mips64le || wasm
     6  
     7  package atomic
     8  
     9  //go:nosplit
    10  func And32(ptr *uint32, val uint32) uint32 {
    11  	for {
    12  		old := *ptr
    13  		if Cas(ptr, old, old&val) {
    14  			return old
    15  		}
    16  	}
    17  }
    18  
    19  //go:nosplit
    20  func Or32(ptr *uint32, val uint32) uint32 {
    21  	for {
    22  		old := *ptr
    23  		if Cas(ptr, old, old|val) {
    24  			return old
    25  		}
    26  	}
    27  }
    28  
    29  //go:nosplit
    30  func And64(ptr *uint64, val uint64) uint64 {
    31  	for {
    32  		old := *ptr
    33  		if Cas64(ptr, old, old&val) {
    34  			return old
    35  		}
    36  	}
    37  }
    38  
    39  //go:nosplit
    40  func Or64(ptr *uint64, val uint64) uint64 {
    41  	for {
    42  		old := *ptr
    43  		if Cas64(ptr, old, old|val) {
    44  			return old
    45  		}
    46  	}
    47  }
    48  
    49  //go:nosplit
    50  func Anduintptr(ptr *uintptr, val uintptr) uintptr {
    51  	for {
    52  		old := *ptr
    53  		if Casuintptr(ptr, old, old&val) {
    54  			return old
    55  		}
    56  	}
    57  }
    58  
    59  //go:nosplit
    60  func Oruintptr(ptr *uintptr, val uintptr) uintptr {
    61  	for {
    62  		old := *ptr
    63  		if Casuintptr(ptr, old, old|val) {
    64  			return old
    65  		}
    66  	}
    67  }
    68  

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