Initial

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

vendor/github.com/Microsoft/hcsshim/internal/safefile/zsyscall_windows.go

@@ -0,0 +1,79 @@
+// Code generated by 'go generate'; DO NOT EDIT.
+
+package safefile
+
+import (
+	"syscall"
+	"unsafe"
+
+	"golang.org/x/sys/windows"
+)
+
+var _ unsafe.Pointer
+
+// Do the interface allocations only once for common
+// Errno values.
+const (
+	errnoERROR_IO_PENDING = 997
+)
+
+var (
+	errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
+)
+
+// errnoErr returns common boxed Errno values, to prevent
+// allocations at runtime.
+func errnoErr(e syscall.Errno) error {
+	switch e {
+	case 0:
+		return nil
+	case errnoERROR_IO_PENDING:
+		return errERROR_IO_PENDING
+	}
+	// TODO: add more here, after collecting data on the common
+	// error values see on Windows. (perhaps when running
+	// all.bat?)
+	return e
+}
+
+var (
+	modntdll    = windows.NewLazySystemDLL("ntdll.dll")
+	modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
+
+	procNtCreateFile               = modntdll.NewProc("NtCreateFile")
+	procNtSetInformationFile       = modntdll.NewProc("NtSetInformationFile")
+	procRtlNtStatusToDosErrorNoTeb = modntdll.NewProc("RtlNtStatusToDosErrorNoTeb")
+	procLocalAlloc                 = modkernel32.NewProc("LocalAlloc")
+	procLocalFree                  = modkernel32.NewProc("LocalFree")
+)
+
+func ntCreateFile(handle *uintptr, accessMask uint32, oa *objectAttributes, iosb *ioStatusBlock, allocationSize *uint64, fileAttributes uint32, shareAccess uint32, createDisposition uint32, createOptions uint32, eaBuffer *byte, eaLength uint32) (status uint32) {
+	r0, _, _ := syscall.Syscall12(procNtCreateFile.Addr(), 11, uintptr(unsafe.Pointer(handle)), uintptr(accessMask), uintptr(unsafe.Pointer(oa)), uintptr(unsafe.Pointer(iosb)), uintptr(unsafe.Pointer(allocationSize)), uintptr(fileAttributes), uintptr(shareAccess), uintptr(createDisposition), uintptr(createOptions), uintptr(unsafe.Pointer(eaBuffer)), uintptr(eaLength), 0)
+	status = uint32(r0)
+	return
+}
+
+func ntSetInformationFile(handle uintptr, iosb *ioStatusBlock, information uintptr, length uint32, class uint32) (status uint32) {
+	r0, _, _ := syscall.Syscall6(procNtSetInformationFile.Addr(), 5, uintptr(handle), uintptr(unsafe.Pointer(iosb)), uintptr(information), uintptr(length), uintptr(class), 0)
+	status = uint32(r0)
+	return
+}
+
+func rtlNtStatusToDosError(status uint32) (winerr error) {
+	r0, _, _ := syscall.Syscall(procRtlNtStatusToDosErrorNoTeb.Addr(), 1, uintptr(status), 0, 0)
+	if r0 != 0 {
+		winerr = syscall.Errno(r0)
+	}
+	return
+}
+
+func localAlloc(flags uint32, size int) (ptr uintptr) {
+	r0, _, _ := syscall.Syscall(procLocalAlloc.Addr(), 2, uintptr(flags), uintptr(size), 0)
+	ptr = uintptr(r0)
+	return
+}
+
+func localFree(ptr uintptr) {
+	syscall.Syscall(procLocalFree.Addr(), 1, uintptr(ptr), 0, 0)
+	return
+}