commit | 7ccfa79b883fc5ba5bd24ee88a8e5a455556d2dd | [log] [tgz] |
---|---|---|
author | Abhinav Gupta <abg@uber.com> | Fri May 15 15:49:02 2020 -0700 |
committer | Abhinav Gupta <abg@uber.com> | Fri May 15 15:49:02 2020 -0700 |
tree | 39d9f2d0b8004ba317f6d0bfe948fe4140ae2ba7 | |
parent | ddc304d531896ececf437e2223f5dffe06be1232 [diff] | |
parent | b3957f734332cc138d8c02d0395466d00f4920d1 [diff] |
Generate all atomics automatically (#77) `gen-valuewrapper` is specialized to generating type-safe atomic wrappers around `atomic.Value`. This limitation is unnecessary. Given functions to convert an exposed type to the underlying type (referred to as "packing" here) and back ("unpacking"), we can generate wrappers around any backing atomic type. This generalizes `valuewrapper` into an `atomicwrapper` implementing said functionality, and adding opt-in support for generating CAS, Swap, and JSON methods. With this, we can automatically generate bool, float64, and time.Duration atomic wrappers on top of Uint32, Uint64, and Int64 respectively, as well as their core functionality.
Simple wrappers for primitive types to enforce atomic access.
$ go get -u go.uber.org/atomic@v1
As of v1.5.0, the import path go.uber.org/atomic
is the only supported way of using this package. If you are using Go modules, this package will fail to compile with the legacy import path path github.com/uber-go/atomic
.
We recommend migrating your code to the new import path but if you're unable to do so, or if your dependencies are still using the old import path, you will have to add a replace
directive to your go.mod
file downgrading the legacy import path to an older version.
replace github.com/uber-go/atomic => github.com/uber-go/atomic v1.4.0
You can do so automatically by running the following command.
$ go mod edit -replace github.com/uber-go/atomic=github.com/uber-go/atomic@v1.4.0
The standard library‘s sync/atomic
is powerful, but it’s easy to forget which variables must be accessed atomically. go.uber.org/atomic
preserves all the functionality of the standard library, but wraps the primitive types to provide a safer, more convenient API.
var atom atomic.Uint32
atom.Store(42)
atom.Sub(2)
atom.CAS(40, 11)
See the documentation for a complete API specification.
Stable.
Released under the MIT License.