diff options
Diffstat (limited to 'vendor/github.com/Microsoft/hcsshim/internal/safefile/zsyscall_windows.go')
-rw-r--r-- | vendor/github.com/Microsoft/hcsshim/internal/safefile/zsyscall_windows.go | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/vendor/github.com/Microsoft/hcsshim/internal/safefile/zsyscall_windows.go b/vendor/github.com/Microsoft/hcsshim/internal/safefile/zsyscall_windows.go new file mode 100644 index 000000000..709b9d347 --- /dev/null +++ b/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 +} |