func sysInit() {
var d syscall.WSAData
e := syscall.WSAStartup(uint32(0x202), &d)
if e != nil {
initErr = os.NewSyscallError("WSAStartup", e)
}
canCancelIO = syscall.LoadCancelIoEx() == nil
if syscall.LoadGetAddrInfo() == nil {
lookupPort = newLookupPort
lookupIP = newLookupIP
}
hasLoadSetFileCompletionNotificationModes = syscall.LoadSetFileCompletionNotificationModes() == nil
if hasLoadSetFileCompletionNotificationModes {
// It's not safe to use FILE_SKIP_COMPLETION_PORT_ON_SUCCESS if non IFS providers are installed:
// http://support.microsoft.com/kb/2568167
skipSyncNotif = true
protos := [2]int32{syscall.IPPROTO_TCP, 0}
var buf [32]syscall.WSAProtocolInfo
len := uint32(unsafe.Sizeof(buf))
n, err := syscall.WSAEnumProtocols(&protos[0], &buf[0], &len)
if err != nil {
skipSyncNotif = false
} else {
for i := int32(0); i < n; i++ {
if buf[i].ServiceFlags1&syscall.XP1_IFS_HANDLES == 0 {
skipSyncNotif = false
break
}
}
}
}
}
func sysInit() {
var d syscall.WSAData
e := syscall.WSAStartup(uint32(0x202), &d)
if e != nil {
initErr = os.NewSyscallError("WSAStartup", e)
}
canCancelIO = syscall.LoadCancelIoEx() == nil
if syscall.LoadGetAddrInfo() == nil {
lookupIP = newLookupIP
}
}