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The intention is to keep to repo root clean while the list of packages is slowly growing. Additionally, a bunch of small (~30 LoC) files in the repo root is merged into a single maddy.go file, for the same reason. Most of the internal code is moved into the internal/ directory. Go toolchain will make it impossible to import these packages from external applications. Some packages are renamed and moved into the pkg/ directory in the root. According to https://github.com/golang-standards/project-layout this is the de-facto standard to place "library code that's ok to use by external applications" in. To clearly define the purpose of top-level directories, README.md files are added to each.
39 lines
959 B
Go
39 lines
959 B
Go
//+build darwin dragonfly freebsd linux netbsd openbsd solaris
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package maddy
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import (
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"os"
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"os/signal"
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"syscall"
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"github.com/foxcpp/maddy/internal/log"
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)
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// handleSignals function creates and listens on OS signals channel.
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//
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// OS-specific signals that correspond to the program termination
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// (SIGTERM, SIGHUP, SIGINT) will cause this function to return.
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//
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// SIGUSR1 will call reinitLogging without returning.
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func handleSignals() os.Signal {
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sig := make(chan os.Signal, 5)
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signal.Notify(sig, os.Interrupt, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGINT, syscall.SIGUSR1)
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for {
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switch s := <-sig; s {
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case syscall.SIGUSR1:
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log.Println("SIGUSR1 received, reinitializing logging")
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reinitLogging()
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default:
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go func() {
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s := handleSignals()
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log.Printf("forced shutdown due to signal (%v)!", s)
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os.Exit(1)
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}()
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log.Printf("signal received (%v), next signal will force immediate shutdown.", s)
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return s
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}
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}
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}
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