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fix: be sure that collector always initialized #130

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Merged
merged 2 commits into from
May 1, 2025
Merged

fix: be sure that collector always initialized #130

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a823294
fix: do not return not initialized collector
rustatian May 1, 2025
9fd3ee6
chore: correct mutex
rustatian May 1, 2025
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2 changes: 2 additions & 0 deletions go.work.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -176,6 +176,7 @@ github.com/mattn/go-colorable v0.1.12 h1:jF+Du6AlPIjs2BiUiQlKOX0rt3SujHxPnksPKZb
github.com/mattn/go-colorable v0.1.12/go.mod h1:u5H1YNBxpqRaxsYJYSkiCWKzEfiAb1Gb520KVy5xxl4=
github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
github.com/matttproud/golang_protobuf_extensions v1.0.4/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
Expand Down Expand Up @@ -337,6 +338,7 @@ golang.org/x/oauth2 v0.18.0/go.mod h1:Wf7knwG0MPoWIMMBgFlEaSUDaKskp0dCfrlJRJXbBi
golang.org/x/oauth2 v0.20.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
golang.org/x/oauth2 v0.24.0 h1:KTBBxWqUa0ykRPLtV69rRto9TLXcqYkeswu48x/gvNE=
golang.org/x/oauth2 v0.24.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
golang.org/x/oauth2 v0.25.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.9.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
Expand Down
13 changes: 12 additions & 1 deletion plugin.go
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Original file line number Diff line number Diff line change
Expand Up @@ -31,7 +31,7 @@ type Logger interface {
}

type Plugin struct {
sync.RWMutex
rwm sync.RWMutex
// config for RR integration
cfgPlugin Configurer
// logger
Expand Down Expand Up @@ -70,11 +70,22 @@ func (p *Plugin) KvFromConfig(key string) (kv.Storage, error) {
return nil, errors.E(op, err)
}

// should not be needed, but to double check
p.rwm.Lock()
defer p.rwm.Unlock()

p.metricsCollector = st.MetricsCollector()

return st, nil
}

func (p *Plugin) MetricsCollector() []prometheus.Collector {
p.rwm.RLock()
defer p.rwm.RUnlock()

if p.metricsCollector == nil {
return nil
}

return []prometheus.Collector{p.metricsCollector}
}
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