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62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
// Copyright 2016 Canonical Ltd.
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// Licensed under the LGPLv3, see LICENCE file for details.
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package loggo
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// Do not change rootName: modules.resolve() will misbehave if it isn't "".
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const (
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rootString = "<root>"
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defaultRootLevel = WARNING
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defaultLevel = UNSPECIFIED
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)
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type module struct {
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name string
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level Level
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parent *module
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context *Context
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}
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// Name returns the module's name.
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func (module *module) Name() string {
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if module.name == "" {
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return rootString
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}
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return module.name
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}
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func (m *module) willWrite(level Level) bool {
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if level < TRACE || level > CRITICAL {
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return false
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}
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return level >= m.getEffectiveLogLevel()
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}
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func (module *module) getEffectiveLogLevel() Level {
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// Note: the root module is guaranteed to have a
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// specified logging level, so acts as a suitable sentinel
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// for this loop.
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for {
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if level := module.level.get(); level != UNSPECIFIED {
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return level
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}
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module = module.parent
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}
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panic("unreachable")
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}
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// setLevel sets the severity level of the given module.
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// The root module cannot be set to UNSPECIFIED level.
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func (module *module) setLevel(level Level) {
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// The root module can't be unspecified.
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if module.name == "" && level == UNSPECIFIED {
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level = WARNING
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}
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module.level.set(level)
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}
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func (m *module) write(entry Entry) {
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entry.Module = m.name
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m.context.write(entry)
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}
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