mirror of https://github.com/k3s-io/k3s
32 lines
695 B
Markdown
32 lines
695 B
Markdown
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# FileMutex
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FileMutex is similar to `sync.RWMutex`, but also synchronizes across processes.
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On Linux, OSX, and other POSIX systems it uses the flock system call. On windows
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it uses the LockFileEx and UnlockFileEx system calls.
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```go
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import (
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"log"
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"github.com/alexflint/go-filemutex"
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)
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func main() {
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m, err := filemutex.New("/tmp/foo.lock")
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if err != nil {
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log.Fatalln("Directory did not exist or file could not created")
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}
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m.Lock() // Will block until lock can be acquired
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// Code here is protected by the mutex
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m.Unlock()
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}
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```
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### Installation
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go get github.com/alexflint/go-filemutex
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Forked from https://github.com/golang/build/tree/master/cmd/builder/filemutex_*.go
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