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Diffstat (limited to 'src/pkg/sync/atomic/doc.go')
| -rw-r--r-- | src/pkg/sync/atomic/doc.go | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/src/pkg/sync/atomic/doc.go b/src/pkg/sync/atomic/doc.go deleted file mode 100644 index ec5a0d33a..000000000 --- a/src/pkg/sync/atomic/doc.go +++ /dev/null @@ -1,62 +0,0 @@ -// Copyright 2011 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. - -// Package atomic provides low-level atomic memory primitives -// useful for implementing synchronization algorithms. -// -// These functions require great care to be used correctly. -// Except for special, low-level applications, synchronization is better -// done with channels or the facilities of the sync package. -// Share memory by communicating; -// don't communicate by sharing memory. -// -// The compare-and-swap operation, implemented by the CompareAndSwapT -// functions, is the atomic equivalent of: -// -// if *val == old { -// *val = new -// return true -// } -// return false -// -package atomic - -// BUG(rsc): On ARM, the 64-bit functions use instructions unavailable before ARM 11. -// -// On x86-32, the 64-bit functions use instructions unavailable before the Pentium. - -// CompareAndSwapInt32 executes the compare-and-swap operation for an int32 value. -func CompareAndSwapInt32(val *int32, old, new int32) (swapped bool) - -// CompareAndSwapInt64 executes the compare-and-swap operation for an int64 value. -func CompareAndSwapInt64(val *int64, old, new int64) (swapped bool) - -// CompareAndSwapUint32 executes the compare-and-swap operation for a uint32 value. -func CompareAndSwapUint32(val *uint32, old, new uint32) (swapped bool) - -// CompareAndSwapUint64 executes the compare-and-swap operation for a uint64 value. -func CompareAndSwapUint64(val *uint64, old, new uint64) (swapped bool) - -// CompareAndSwapUintptr executes the compare-and-swap operation for a uintptr value. -func CompareAndSwapUintptr(val *uintptr, old, new uintptr) (swapped bool) - -// AddInt32 atomically adds delta to *val and returns the new value. -func AddInt32(val *int32, delta int32) (new int32) - -// AddUint32 atomically adds delta to *val and returns the new value. -func AddUint32(val *uint32, delta uint32) (new uint32) - -// AddInt64 atomically adds delta to *val and returns the new value. -func AddInt64(val *int64, delta int64) (new int64) - -// AddUint64 atomically adds delta to *val and returns the new value. -func AddUint64(val *uint64, delta uint64) (new uint64) - -// AddUintptr atomically adds delta to *val and returns the new value. -func AddUintptr(val *uintptr, delta uintptr) (new uintptr) - -// Helper for ARM. Linker will discard on other systems -func panic64() { - panic("sync/atomic: broken 64-bit atomic operations (buggy QEMU)") -} |