libgo/go/time/zoneinfo_ios.go

   1 // Copyright 2015 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build darwin
   6 // +build arm arm64
   7
   8 package time
   9
  10 import (
  11         "runtime"
  12         "syscall"
  13 )
  14
  15 var zoneSources = []string{
  16         getZoneRoot() + "/zoneinfo.zip",
  17 }
  18
  19 func getZoneRoot() string {
  20         // The working directory at initialization is the root of the
  21         // app bundle: "/private/.../bundlename.app". That's where we
  22         // keep zoneinfo.zip for tethered iOS builds.
  23         // For self-hosted iOS builds, the zoneinfo.zip is in GOROOT.
  24         roots := []string{runtime.GOROOT() + "/lib/time"}
  25         wd, err := syscall.Getwd()
  26         if err == nil {
  27                 roots = append(roots, wd)
  28         }
  29         for _, r := range roots {
  30                 var st syscall.Stat_t
  31                 fd, err := syscall.Open(r, syscall.O_RDONLY, 0)
  32                 if err != nil {
  33                         continue
  34                 }
  35                 defer syscall.Close(fd)
  36                 if err := syscall.Fstat(fd, &st); err == nil {
  37                         return r
  38                 }
  39         }
  40         return "/XXXNOEXIST"
  41 }
  42
  43 func initLocal() {
  44         // TODO(crawshaw): [NSTimeZone localTimeZone]
  45         localLoc = *UTC
  46 }