From 6e2cb00008cbf09e556b00f87603797fcaa47e09 Mon Sep 17 00:00:00 2001 From: Christopher Speller Date: Mon, 16 Apr 2018 05:37:14 -0700 Subject: Depenancy upgrades and movign to dep. (#8630) --- vendor/golang.org/x/sys/windows/svc/service.go | 363 ------------------------- 1 file changed, 363 deletions(-) delete mode 100644 vendor/golang.org/x/sys/windows/svc/service.go (limited to 'vendor/golang.org/x/sys/windows/svc/service.go') diff --git a/vendor/golang.org/x/sys/windows/svc/service.go b/vendor/golang.org/x/sys/windows/svc/service.go deleted file mode 100644 index 903cba3f1..000000000 --- a/vendor/golang.org/x/sys/windows/svc/service.go +++ /dev/null @@ -1,363 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build windows - -// Package svc provides everything required to build Windows service. -// -package svc - -import ( - "errors" - "runtime" - "syscall" - "unsafe" - - "golang.org/x/sys/windows" -) - -// State describes service execution state (Stopped, Running and so on). -type State uint32 - -const ( - Stopped = State(windows.SERVICE_STOPPED) - StartPending = State(windows.SERVICE_START_PENDING) - StopPending = State(windows.SERVICE_STOP_PENDING) - Running = State(windows.SERVICE_RUNNING) - ContinuePending = State(windows.SERVICE_CONTINUE_PENDING) - PausePending = State(windows.SERVICE_PAUSE_PENDING) - Paused = State(windows.SERVICE_PAUSED) -) - -// Cmd represents service state change request. It is sent to a service -// by the service manager, and should be actioned upon by the service. -type Cmd uint32 - -const ( - Stop = Cmd(windows.SERVICE_CONTROL_STOP) - Pause = Cmd(windows.SERVICE_CONTROL_PAUSE) - Continue = Cmd(windows.SERVICE_CONTROL_CONTINUE) - Interrogate = Cmd(windows.SERVICE_CONTROL_INTERROGATE) - Shutdown = Cmd(windows.SERVICE_CONTROL_SHUTDOWN) - ParamChange = Cmd(windows.SERVICE_CONTROL_PARAMCHANGE) - NetBindAdd = Cmd(windows.SERVICE_CONTROL_NETBINDADD) - NetBindRemove = Cmd(windows.SERVICE_CONTROL_NETBINDREMOVE) - NetBindEnable = Cmd(windows.SERVICE_CONTROL_NETBINDENABLE) - NetBindDisable = Cmd(windows.SERVICE_CONTROL_NETBINDDISABLE) - DeviceEvent = Cmd(windows.SERVICE_CONTROL_DEVICEEVENT) - HardwareProfileChange = Cmd(windows.SERVICE_CONTROL_HARDWAREPROFILECHANGE) - PowerEvent = Cmd(windows.SERVICE_CONTROL_POWEREVENT) - SessionChange = Cmd(windows.SERVICE_CONTROL_SESSIONCHANGE) -) - -// Accepted is used to describe commands accepted by the service. -// Note that Interrogate is always accepted. -type Accepted uint32 - -const ( - AcceptStop = Accepted(windows.SERVICE_ACCEPT_STOP) - AcceptShutdown = Accepted(windows.SERVICE_ACCEPT_SHUTDOWN) - AcceptPauseAndContinue = Accepted(windows.SERVICE_ACCEPT_PAUSE_CONTINUE) - AcceptParamChange = Accepted(windows.SERVICE_ACCEPT_PARAMCHANGE) - AcceptNetBindChange = Accepted(windows.SERVICE_ACCEPT_NETBINDCHANGE) - AcceptHardwareProfileChange = Accepted(windows.SERVICE_ACCEPT_HARDWAREPROFILECHANGE) - AcceptPowerEvent = Accepted(windows.SERVICE_ACCEPT_POWEREVENT) - AcceptSessionChange = Accepted(windows.SERVICE_ACCEPT_SESSIONCHANGE) -) - -// Status combines State and Accepted commands to fully describe running service. -type Status struct { - State State - Accepts Accepted - CheckPoint uint32 // used to report progress during a lengthy operation - WaitHint uint32 // estimated time required for a pending operation, in milliseconds -} - -// ChangeRequest is sent to the service Handler to request service status change. -type ChangeRequest struct { - Cmd Cmd - EventType uint32 - EventData uintptr - CurrentStatus Status -} - -// Handler is the interface that must be implemented to build Windows service. -type Handler interface { - - // Execute will be called by the package code at the start of - // the service, and the service will exit once Execute completes. - // Inside Execute you must read service change requests from r and - // act accordingly. You must keep service control manager up to date - // about state of your service by writing into s as required. - // args contains service name followed by argument strings passed - // to the service. - // You can provide service exit code in exitCode return parameter, - // with 0 being "no error". You can also indicate if exit code, - // if any, is service specific or not by using svcSpecificEC - // parameter. - Execute(args []string, r <-chan ChangeRequest, s chan<- Status) (svcSpecificEC bool, exitCode uint32) -} - -var ( - // These are used by asm code. - goWaitsH uintptr - cWaitsH uintptr - ssHandle uintptr - sName *uint16 - sArgc uintptr - sArgv **uint16 - ctlHandlerExProc uintptr - cSetEvent uintptr - cWaitForSingleObject uintptr - cRegisterServiceCtrlHandlerExW uintptr -) - -func init() { - k := syscall.MustLoadDLL("kernel32.dll") - cSetEvent = k.MustFindProc("SetEvent").Addr() - cWaitForSingleObject = k.MustFindProc("WaitForSingleObject").Addr() - a := syscall.MustLoadDLL("advapi32.dll") - cRegisterServiceCtrlHandlerExW = a.MustFindProc("RegisterServiceCtrlHandlerExW").Addr() -} - -// The HandlerEx prototype also has a context pointer but since we don't use -// it at start-up time we don't have to pass it over either. -type ctlEvent struct { - cmd Cmd - eventType uint32 - eventData uintptr - errno uint32 -} - -// service provides access to windows service api. -type service struct { - name string - h windows.Handle - cWaits *event - goWaits *event - c chan ctlEvent - handler Handler -} - -func newService(name string, handler Handler) (*service, error) { - var s service - var err error - s.name = name - s.c = make(chan ctlEvent) - s.handler = handler - s.cWaits, err = newEvent() - if err != nil { - return nil, err - } - s.goWaits, err = newEvent() - if err != nil { - s.cWaits.Close() - return nil, err - } - return &s, nil -} - -func (s *service) close() error { - s.cWaits.Close() - s.goWaits.Close() - return nil -} - -type exitCode struct { - isSvcSpecific bool - errno uint32 -} - -func (s *service) updateStatus(status *Status, ec *exitCode) error { - if s.h == 0 { - return errors.New("updateStatus with no service status handle") - } - var t windows.SERVICE_STATUS - t.ServiceType = windows.SERVICE_WIN32_OWN_PROCESS - t.CurrentState = uint32(status.State) - if status.Accepts&AcceptStop != 0 { - t.ControlsAccepted |= windows.SERVICE_ACCEPT_STOP - } - if status.Accepts&AcceptShutdown != 0 { - t.ControlsAccepted |= windows.SERVICE_ACCEPT_SHUTDOWN - } - if status.Accepts&AcceptPauseAndContinue != 0 { - t.ControlsAccepted |= windows.SERVICE_ACCEPT_PAUSE_CONTINUE - } - if status.Accepts&AcceptParamChange != 0 { - t.ControlsAccepted |= windows.SERVICE_ACCEPT_PARAMCHANGE - } - if status.Accepts&AcceptNetBindChange != 0 { - t.ControlsAccepted |= windows.SERVICE_ACCEPT_NETBINDCHANGE - } - if status.Accepts&AcceptHardwareProfileChange != 0 { - t.ControlsAccepted |= windows.SERVICE_ACCEPT_HARDWAREPROFILECHANGE - } - if status.Accepts&AcceptPowerEvent != 0 { - t.ControlsAccepted |= windows.SERVICE_ACCEPT_POWEREVENT - } - if status.Accepts&AcceptSessionChange != 0 { - t.ControlsAccepted |= windows.SERVICE_ACCEPT_SESSIONCHANGE - } - if ec.errno == 0 { - t.Win32ExitCode = windows.NO_ERROR - t.ServiceSpecificExitCode = windows.NO_ERROR - } else if ec.isSvcSpecific { - t.Win32ExitCode = uint32(windows.ERROR_SERVICE_SPECIFIC_ERROR) - t.ServiceSpecificExitCode = ec.errno - } else { - t.Win32ExitCode = ec.errno - t.ServiceSpecificExitCode = windows.NO_ERROR - } - t.CheckPoint = status.CheckPoint - t.WaitHint = status.WaitHint - return windows.SetServiceStatus(s.h, &t) -} - -const ( - sysErrSetServiceStatusFailed = uint32(syscall.APPLICATION_ERROR) + iota - sysErrNewThreadInCallback -) - -func (s *service) run() { - s.goWaits.Wait() - s.h = windows.Handle(ssHandle) - argv := (*[100]*int16)(unsafe.Pointer(sArgv))[:sArgc] - args := make([]string, len(argv)) - for i, a := range argv { - args[i] = syscall.UTF16ToString((*[1 << 20]uint16)(unsafe.Pointer(a))[:]) - } - - cmdsToHandler := make(chan ChangeRequest) - changesFromHandler := make(chan Status) - exitFromHandler := make(chan exitCode) - - go func() { - ss, errno := s.handler.Execute(args, cmdsToHandler, changesFromHandler) - exitFromHandler <- exitCode{ss, errno} - }() - - status := Status{State: Stopped} - ec := exitCode{isSvcSpecific: true, errno: 0} - var outch chan ChangeRequest - inch := s.c - var cmd Cmd - var evtype uint32 - var evdata uintptr -loop: - for { - select { - case r := <-inch: - if r.errno != 0 { - ec.errno = r.errno - break loop - } - inch = nil - outch = cmdsToHandler - cmd = r.cmd - evtype = r.eventType - evdata = r.eventData - case outch <- ChangeRequest{cmd, evtype, evdata, status}: - inch = s.c - outch = nil - case c := <-changesFromHandler: - err := s.updateStatus(&c, &ec) - if err != nil { - // best suitable error number - ec.errno = sysErrSetServiceStatusFailed - if err2, ok := err.(syscall.Errno); ok { - ec.errno = uint32(err2) - } - break loop - } - status = c - case ec = <-exitFromHandler: - break loop - } - } - - s.updateStatus(&Status{State: Stopped}, &ec) - s.cWaits.Set() -} - -func newCallback(fn interface{}) (cb uintptr, err error) { - defer func() { - r := recover() - if r == nil { - return - } - cb = 0 - switch v := r.(type) { - case string: - err = errors.New(v) - case error: - err = v - default: - err = errors.New("unexpected panic in syscall.NewCallback") - } - }() - return syscall.NewCallback(fn), nil -} - -// BUG(brainman): There is no mechanism to run multiple services -// inside one single executable. Perhaps, it can be overcome by -// using RegisterServiceCtrlHandlerEx Windows api. - -// Run executes service name by calling appropriate handler function. -func Run(name string, handler Handler) error { - runtime.LockOSThread() - - tid := windows.GetCurrentThreadId() - - s, err := newService(name, handler) - if err != nil { - return err - } - - ctlHandler := func(ctl uint32, evtype uint32, evdata uintptr, context uintptr) uintptr { - e := ctlEvent{cmd: Cmd(ctl), eventType: evtype, eventData: evdata} - // We assume that this callback function is running on - // the same thread as Run. Nowhere in MS documentation - // I could find statement to guarantee that. So putting - // check here to verify, otherwise things will go bad - // quickly, if ignored. - i := windows.GetCurrentThreadId() - if i != tid { - e.errno = sysErrNewThreadInCallback - } - s.c <- e - // Always return NO_ERROR (0) for now. - return 0 - } - - var svcmain uintptr - getServiceMain(&svcmain) - t := []windows.SERVICE_TABLE_ENTRY{ - {syscall.StringToUTF16Ptr(s.name), svcmain}, - {nil, 0}, - } - - goWaitsH = uintptr(s.goWaits.h) - cWaitsH = uintptr(s.cWaits.h) - sName = t[0].ServiceName - ctlHandlerExProc, err = newCallback(ctlHandler) - if err != nil { - return err - } - - go s.run() - - err = windows.StartServiceCtrlDispatcher(&t[0]) - if err != nil { - return err - } - return nil -} - -// StatusHandle returns service status handle. It is safe to call this function -// from inside the Handler.Execute because then it is guaranteed to be set. -// This code will have to change once multiple services are possible per process. -func StatusHandle() windows.Handle { - return windows.Handle(ssHandle) -} -- cgit v1.2.3-1-g7c22