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33 lines
1.0 KiB
Go
33 lines
1.0 KiB
Go
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//go:build unix
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package nfs
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import (
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billy "github.com/go-git/go-billy/v5"
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nfshelper "github.com/willscott/go-nfs/helpers"
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)
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// Cache controls the file handle cache implementation
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type Cache interface {
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// ToHandle takes a file and represents it with an opaque handle to reference it.
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// In stateless nfs (when it's serving a unix fs) this can be the device + inode
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// but we can generalize with a stateful local cache of handed out IDs.
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ToHandle(f billy.Filesystem, path []string) []byte
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// FromHandle converts from an opaque handle to the file it represents
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FromHandle(fh []byte) (billy.Filesystem, []string, error)
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// Invalidate the handle passed - used on rename and delete
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InvalidateHandle(fs billy.Filesystem, handle []byte) error
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// HandleLimit exports how many file handles can be safely stored by this cache.
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HandleLimit() int
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}
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// Set the cache of the handler to the type required by the user
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func (h *Handler) setCache() (err error) {
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// The default caching handler
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h.Cache = nfshelper.NewCachingHandler(h, h.opt.HandleLimit)
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return nil
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}
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