Ophestra
985c4dd2fc
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This otherwise creates a confusing error message on a revert failure. Signed-off-by: Ophestra <cat@gensokyo.uk>
97 lines
3.5 KiB
Go
97 lines
3.5 KiB
Go
package system
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import (
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"io"
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"io/fs"
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"os"
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"hakurei.app/system/acl"
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"hakurei.app/system/dbus"
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"hakurei.app/system/internal/xcb"
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)
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type osFile interface {
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Name() string
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io.Writer
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fs.File
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}
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// syscallDispatcher provides methods that make state-dependent system calls as part of their behaviour.
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// syscallDispatcher is embedded in [I], so all methods must be unexported.
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type syscallDispatcher interface {
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// new starts a goroutine with a new instance of syscallDispatcher.
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// A syscallDispatcher must never be used in any goroutine other than the one owning it,
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// just synchronising access is not enough, as this is for test instrumentation.
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new(f func(k syscallDispatcher))
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// stat provides os.Stat.
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stat(name string) (os.FileInfo, error)
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// open provides [os.Open].
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open(name string) (osFile, error)
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// mkdir provides os.Mkdir.
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mkdir(name string, perm os.FileMode) error
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// chmod provides os.Chmod.
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chmod(name string, mode os.FileMode) error
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// link provides os.Link.
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link(oldname, newname string) error
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// remove provides os.Remove.
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remove(name string) error
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// aclUpdate provides [acl.Update].
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aclUpdate(name string, uid int, perms ...acl.Perm) error
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// xcbChangeHosts provides [xcb.ChangeHosts].
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xcbChangeHosts(mode xcb.HostMode, family xcb.Family, address string) error
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// dbusAddress provides [dbus.Address].
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dbusAddress() (session, system string)
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// dbusFinalise provides [dbus.Finalise].
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dbusFinalise(sessionBus, systemBus dbus.ProxyPair, session, system *dbus.Config) (final *dbus.Final, err error)
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// dbusProxyStart provides the Start method of [dbus.Proxy].
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dbusProxyStart(proxy *dbus.Proxy) error
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// dbusProxyClose provides the Close method of [dbus.Proxy].
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dbusProxyClose(proxy *dbus.Proxy)
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// dbusProxyWait provides the Wait method of [dbus.Proxy].
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dbusProxyWait(proxy *dbus.Proxy) error
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isVerbose() bool
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verbose(v ...any)
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verbosef(format string, v ...any)
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}
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// direct implements syscallDispatcher on the current kernel.
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type direct struct{}
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func (k direct) new(f func(k syscallDispatcher)) { go f(k) }
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func (k direct) stat(name string) (os.FileInfo, error) { return os.Stat(name) }
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func (k direct) open(name string) (osFile, error) { return os.Open(name) }
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func (k direct) mkdir(name string, perm os.FileMode) error { return os.Mkdir(name, perm) }
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func (k direct) chmod(name string, mode os.FileMode) error { return os.Chmod(name, mode) }
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func (k direct) link(oldname, newname string) error { return os.Link(oldname, newname) }
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func (k direct) remove(name string) error { return os.Remove(name) }
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func (k direct) aclUpdate(name string, uid int, perms ...acl.Perm) error {
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return acl.Update(name, uid, perms...)
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}
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func (k direct) xcbChangeHosts(mode xcb.HostMode, family xcb.Family, address string) error {
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return xcb.ChangeHosts(mode, family, address)
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}
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func (k direct) dbusAddress() (session, system string) {
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return dbus.Address()
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}
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func (k direct) dbusFinalise(sessionBus, systemBus dbus.ProxyPair, session, system *dbus.Config) (final *dbus.Final, err error) {
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return dbus.Finalise(sessionBus, systemBus, session, system)
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}
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func (k direct) dbusProxyStart(proxy *dbus.Proxy) error { return proxy.Start() }
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func (k direct) dbusProxyClose(proxy *dbus.Proxy) { proxy.Close() }
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func (k direct) dbusProxyWait(proxy *dbus.Proxy) error { return proxy.Wait() }
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func (k direct) isVerbose() bool { return msg.IsVerbose() }
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func (direct) verbose(v ...any) { msg.Verbose(v...) }
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func (direct) verbosef(format string, v ...any) { msg.Verbosef(format, v...) }
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