hakurei/system/dispatcher.go
Ophestra 6cc2b406a4
All checks were successful
Test / Create distribution (push) Successful in 33s
Test / Sandbox (push) Successful in 2m5s
Test / Hakurei (push) Successful in 3m4s
Test / Hpkg (push) Successful in 3m45s
Test / Sandbox (race detector) (push) Successful in 4m26s
Test / Hakurei (race detector) (push) Successful in 5m6s
Test / Flake checks (push) Successful in 1m49s
system/link: use syscall dispatcher
This enables hardlink op methods to be instrumented.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-09-06 19:47:58 +09:00

69 lines
2.5 KiB
Go

package system
import (
"os"
"hakurei.app/system/acl"
"hakurei.app/system/dbus"
)
// 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))
// link provides os.Link.
link(oldname, newname string) error
// remove provides os.Remove.
remove(name string) error
// aclUpdate provides [acl.Update].
aclUpdate(name string, uid int, perms ...acl.Perm) error
// dbusAddress provides [dbus.Address].
dbusAddress() (session, system string)
// dbusFinalise provides [dbus.Finalise].
dbusFinalise(sessionBus, systemBus dbus.ProxyPair, session, system *dbus.Config) (final *dbus.Final, err error)
// dbusProxyStart provides the Start method of [dbus.Proxy].
dbusProxyStart(proxy *dbus.Proxy) error
// dbusProxyClose provides the Close method of [dbus.Proxy].
dbusProxyClose(proxy *dbus.Proxy)
// dbusProxyWait provides the Wait method of [dbus.Proxy].
dbusProxyWait(proxy *dbus.Proxy) error
isVerbose() bool
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) link(oldname, newname string) error { return os.Link(oldname, newname) }
func (k direct) remove(name string) error { return os.Remove(name) }
func (k direct) aclUpdate(name string, uid int, perms ...acl.Perm) error {
return acl.Update(name, uid, perms...)
}
func (k direct) dbusAddress() (session, system string) {
return dbus.Address()
}
func (k direct) dbusFinalise(sessionBus, systemBus dbus.ProxyPair, session, system *dbus.Config) (final *dbus.Final, err error) {
return dbus.Finalise(sessionBus, systemBus, session, system)
}
func (k direct) dbusProxyStart(proxy *dbus.Proxy) error { return proxy.Start() }
func (k direct) dbusProxyClose(proxy *dbus.Proxy) { proxy.Close() }
func (k direct) dbusProxyWait(proxy *dbus.Proxy) error { return proxy.Wait() }
func (k direct) isVerbose() bool { return msg.IsVerbose() }
func (direct) verbose(v ...any) { msg.Verbose(v...) }
func (direct) verbosef(format string, v ...any) { msg.Verbosef(format, v...) }