centralize registration of exit handlers #230
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| // This method is useful when a caller wishes to execute a func before a shutdown. | ||
| func RegisterExitHandler(handler func()) { | ||
| exitHandlers = append(exitHandlers, handler) | ||
| } |
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The use of a global variable means RegisterExitHandler should not be called from multiple go routines simultaneously. The next commit will call it from a go routine which is not the main one, it's safer to add a mutex to protect accesses to exitHandlers.
Signed-off-by: Luca Stocchi <lstocchi@redhat.com>
Signed-off-by: Luca Stocchi <lstocchi@redhat.com>
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this PR centralizes the registration of exit handlers so that we can register an exit handler from anywhere and it will be invoked before terminating vfkit.
The PR also registers an exit handler to remove the ignition socket.
It resolves #229