forked from TrueCloudLab/frostfs-node
0d2440649a
Add ReadOnly function that returns Option that enables read-only mode in DB. RO mode can be used by processes that won't modify the DB in order to not acquire write flock. Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
36 lines
578 B
Go
36 lines
578 B
Go
package locodebolt
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import (
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"os"
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"time"
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"go.etcd.io/bbolt"
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)
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// Option sets an optional parameter of DB.
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type Option func(*options)
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type options struct {
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mode os.FileMode
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boltOpts *bbolt.Options
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}
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func defaultOpts() *options {
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return &options{
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mode: os.ModePerm, // 0777
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boltOpts: &bbolt.Options{
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Timeout: 3 * time.Second,
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},
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}
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}
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// ReadOnly enables read-only mode of the DB.
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//
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// Do not call DB.Put method on instances with
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// this option: the behavior is undefined.
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func ReadOnly() Option {
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return func(o *options) {
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o.boltOpts.ReadOnly = true
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}
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}
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