unsafe

func Cast ¶

func Cast[T any](ptr uintptr) *T

Cast is used to centralize unsafe use C of allocated pointer. We take the address and then dereference it to trick go vet from creating a possible misuse of unsafe.Pointer

func CastNative ¶

func CastNative[N Native, T Native](ptr *N) *T

func CastWithOffset ¶

func CastWithOffset[T any](ptr uintptr, offset uint64) *T

CastWithOffset is the same as cast but adding an offset to the pointer by a multiple of the size of the type pointed.

func Cstring ¶

func Cstring(name string) *byte

Cstring converts a go string to *byte that can be passed to C code.

func Gostring ¶

func Gostring(ptr *byte) string

Gostring copies a char* to a Go string.

func GostringSized ¶

func GostringSized(ptr *byte, size uint64) string

func KeepAlive ¶

func KeepAlive[T any](x T)

KeepAlive is a copy of runtime.KeepAlive keepAlive has 2 usages: - It forces the deallocation of the memory to take place later than expected (just like runtime.KeepAlive) - It forces the given argument x to be escaped on the heap by saving it into a global value (Go doesn't provide a standard way to do it as of today) It is implemented so that the compiler cannot optimize it.

func NativeStringUnwrap ¶

func NativeStringUnwrap(str string) reflect.StringHeader

NativeStringUnwrap cast a native string type into it's runtime value. Exported as the struct reflect.StringHeader

func NativeToUintptr ¶

func NativeToUintptr[T any](x T) uintptr

NativeToUintptr is a helper used by populate WafObject values with Go values

func PtrToUintptr ¶

func PtrToUintptr[T any](arg *T) uintptr

PtrToUintptr is a helper to centralize of usage of unsafe.Pointer do not use this function to cast interfaces

func SliceToUintptr ¶

func SliceToUintptr[T any](arg []T) uintptr

func UintptrToNative ¶

func UintptrToNative[T any](x uintptr) T

UintToNative is a helper used retrieve Go values from an uintptr encoded value from a WafObject