47e45ae0eb
Signed-off-by: Michael Crosby <michael@docker.com> Upstream-commit: 1a249a5feb9880465594299c1d4965b160e4a14e Component: engine
31 lines
650 B
Go
31 lines
650 B
Go
package reexec
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import (
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"fmt"
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"os"
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)
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var registeredInitializers = make(map[string]func())
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// Register adds an initialization func under the specified name
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func Register(name string, initializer func()) {
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if _, exists := registeredInitializers[name]; exists {
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panic(fmt.Sprintf("reexec func already registred under name %q", name))
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}
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registeredInitializers[name] = initializer
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}
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// Init is called as the first part of the exec process and returns true if an
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// initialization function was called.
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func Init() bool {
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initializer, exists := registeredInitializers[os.Args[0]]
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if exists {
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initializer()
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return true
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}
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return false
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}
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