What if you remove lines 33-35? Does it panic?
Maybe some other init function fills testFunctionsMap?
For maps, use a nil check before creation, not length check!
2020. január 21., kedd 14:24:27 UTC+1 időpontban Graham Nicholls a
következőt írta:
>
> I have the following code:
>
> 3 /*
> 4 selinux.go - return the sestatus
> 5
> 6
> 7 The lines below are preamble to the import of "C" -
> 8 they should be left untouched
> 9 */
> 10
> 11 // //cgo linux CFLAGS: -Iinclude -I.
> 12 // #cgo pkg-config: libselinux
> 13 // #include <selinux/selinux.h>
> 14 // #include <selinux/label.h>
> 15 // #include <stdlib.h>
> 16 // #include <stdio.h>
> 17 // #include <sys/types.h>
> 18 // #include <sys/stat.h>
> 19
> 20 import "C"
> 21 import (
> 22 "fmt"
> 23 "net/http"
> 24 )
> 25
> 26 const (
> 27 Enforcing = 1
> 28 Permissive = 0
> 29 Disabled = -1
> 30 )
> 31
> 32 func init() {
> 33 if len(testFunctionsMap) == 0 {
> 34 testFunctionsMap = make(funcPtrMap)
> 35 }
> 36 testFunctionsMap["selinux"] = SELinuxStatus
> 37 initCtr++
> 38 }
>
> The program also has several other files all in package main. The init
> functions in those files do get called; this init function doesn't -
> "selinux" never gets added to the testFunctionsMap.
>
> This used to work - I think on 1.9 was the previous version. I've looked
> at the release notes, and it seems that work has been done on cgo - but I
> can't see anything which might explain this behaviour.
>
> Thanks.
>
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