dd931d9b48
Reviewed-on: https://go-review.googlesource.com/136435 gotools/: * Makefile.am (mostlyclean-local): Run chmod on check-go-dir to make sure it is writable. (check-go-tools): Likewise. (check-vet): Copy internal/objabi to check-vet-dir. * Makefile.in: Rebuild. From-SVN: r264546
112 lines
3.8 KiB
Go
112 lines
3.8 KiB
Go
// Copyright 2009 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.
|
|
|
|
// Package syscall contains an interface to the low-level operating system
|
|
// primitives. The details vary depending on the underlying system, and
|
|
// by default, godoc will display the syscall documentation for the current
|
|
// system. If you want godoc to display syscall documentation for another
|
|
// system, set $GOOS and $GOARCH to the desired system. For example, if
|
|
// you want to view documentation for freebsd/arm on linux/amd64, set $GOOS
|
|
// to freebsd and $GOARCH to arm.
|
|
// The primary use of syscall is inside other packages that provide a more
|
|
// portable interface to the system, such as "os", "time" and "net". Use
|
|
// those packages rather than this one if you can.
|
|
// For details of the functions and data types in this package consult
|
|
// the manuals for the appropriate operating system.
|
|
// These calls return err == nil to indicate success; otherwise
|
|
// err is an operating system error describing the failure.
|
|
// On most systems, that error has type syscall.Errno.
|
|
//
|
|
// Deprecated: this package is locked down. Callers should use the
|
|
// corresponding package in the golang.org/x/sys repository instead.
|
|
// That is also where updates required by new systems or versions
|
|
// should be applied. See https://golang.org/s/go1.4-syscall for more
|
|
// information.
|
|
//
|
|
package syscall
|
|
|
|
import "unsafe"
|
|
|
|
//go:generate go run mksyscall_windows.go -systemdll -output zsyscall_windows.go syscall_windows.go security_windows.go
|
|
|
|
// StringByteSlice converts a string to a NUL-terminated []byte,
|
|
// If s contains a NUL byte this function panics instead of
|
|
// returning an error.
|
|
//
|
|
// Deprecated: Use ByteSliceFromString instead.
|
|
func StringByteSlice(s string) []byte {
|
|
a, err := ByteSliceFromString(s)
|
|
if err != nil {
|
|
panic("syscall: string with NUL passed to StringByteSlice")
|
|
}
|
|
return a
|
|
}
|
|
|
|
// ByteSliceFromString returns a NUL-terminated slice of bytes
|
|
// containing the text of s. If s contains a NUL byte at any
|
|
// location, it returns (nil, EINVAL).
|
|
func ByteSliceFromString(s string) ([]byte, error) {
|
|
for i := 0; i < len(s); i++ {
|
|
if s[i] == 0 {
|
|
return nil, EINVAL
|
|
}
|
|
}
|
|
a := make([]byte, len(s)+1)
|
|
copy(a, s)
|
|
return a, nil
|
|
}
|
|
|
|
// StringBytePtr returns a pointer to a NUL-terminated array of bytes.
|
|
// If s contains a NUL byte this function panics instead of returning
|
|
// an error.
|
|
//
|
|
// Deprecated: Use BytePtrFromString instead.
|
|
func StringBytePtr(s string) *byte { return &StringByteSlice(s)[0] }
|
|
|
|
// BytePtrFromString returns a pointer to a NUL-terminated array of
|
|
// bytes containing the text of s. If s contains a NUL byte at any
|
|
// location, it returns (nil, EINVAL).
|
|
func BytePtrFromString(s string) (*byte, error) {
|
|
a, err := ByteSliceFromString(s)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &a[0], nil
|
|
}
|
|
|
|
// Single-word zero for use when we need a valid pointer to 0 bytes.
|
|
// See mksyscall.pl.
|
|
var _zero uintptr
|
|
|
|
var dummy *byte
|
|
|
|
const sizeofPtr uintptr = uintptr(unsafe.Sizeof(dummy))
|
|
|
|
// Unix returns ts as the number of seconds and nanoseconds elapsed since the
|
|
// Unix epoch.
|
|
func (ts *Timespec) Unix() (sec int64, nsec int64) {
|
|
return int64(ts.Sec), int64(ts.Nsec)
|
|
}
|
|
|
|
// Unix returns tv as the number of seconds and nanoseconds elapsed since the
|
|
// Unix epoch.
|
|
func (tv *Timeval) Unix() (sec int64, nsec int64) {
|
|
return int64(tv.Sec), int64(tv.Usec) * 1000
|
|
}
|
|
|
|
// Nano returns ts as the number of nanoseconds elapsed since the Unix epoch.
|
|
func (ts *Timespec) Nano() int64 {
|
|
return int64(ts.Sec)*1e9 + int64(ts.Nsec)
|
|
}
|
|
|
|
// Nano returns tv as the number of nanoseconds elapsed since the Unix epoch.
|
|
func (tv *Timeval) Nano() int64 {
|
|
return int64(tv.Sec)*1e9 + int64(tv.Usec)*1000
|
|
}
|
|
|
|
// Getpagesize and Exit are provided by the runtime.
|
|
|
|
func Getpagesize() int
|
|
func Exit(code int)
|