hakurei/system/dispatcher.go
Ophestra ddfb865e2d
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system/dispatcher: wrap syscall helper functions
This allows tests to stub all kernel behaviour, like in the container package.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-09-04 04:15:25 +09:00

31 lines
1.1 KiB
Go

package system
import "hakurei.app/system/acl"
// syscallDispatcher provides methods that make state-dependent system calls as part of their behaviour.
// syscallDispatcher is embedded in [I], so all methods must be unexported.
type syscallDispatcher interface {
// new starts a goroutine with a new instance of syscallDispatcher.
// A syscallDispatcher must never be used in any goroutine other than the one owning it,
// just synchronising access is not enough, as this is for test instrumentation.
new(f func(k syscallDispatcher))
// aclUpdate provides [acl.Update].
aclUpdate(name string, uid int, perms ...acl.Perm) error
verbose(v ...any)
verbosef(format string, v ...any)
}
// direct implements syscallDispatcher on the current kernel.
type direct struct{}
func (k direct) new(f func(k syscallDispatcher)) { go f(k) }
func (k direct) aclUpdate(name string, uid int, perms ...acl.Perm) error {
return acl.Update(name, uid, perms...)
}
func (direct) verbose(v ...any) { msg.Verbose(v...) }
func (direct) verbosef(format string, v ...any) { msg.Verbosef(format, v...) }