dl #
Description
dl can be used to Dynamically Load a library during runtime. It is a thin wrapper over LoadLibrary on Windows, and dlopen on Unix.
Using it, you can implement a plugin system for your application.
Note > We highly recommend using
dl.loaderinstead ofdldirectly. > It provides a more user-friendly API in the V way.
Constants #
const rtld_noload = C.RTLD_NOLOAD
const rtld_nodelete = C.RTLD_NODELETE
const rtld_local = C.RTLD_LOCAL
const rtld_global = C.RTLD_GLOBAL
const rtld_lazy = C.RTLD_LAZY
const rtld_now = C.RTLD_NOW
const rtld_next = voidptr(-1)
const dl_ext = get_shared_library_extension()
const version = 1
fn close #
fn close(handle voidptr) bool
close frees a given shared object.
fn dlerror #
fn dlerror() string
dlerror provides a text error diagnostic message for functions in dl. It returns a human-readable string, describing the most recent error that occurred from a call to one of the dl functions, since the last call to dlerror().
fn get_libname #
fn get_libname(libname string) string
get_libname returns a library name with the operating system specific extension for shared libraries.
fn open #
fn open(filename string, flags int) voidptr
open loads a given dynamic shared object.
fn open_opt #
fn open_opt(filename string, flags int) !voidptr
open_opt tries to load a given dynamic shared object.
fn sym #
fn sym(handle voidptr, symbol string) voidptr
sym returns an address of a symbol in a given shared object.
fn sym_opt #
fn sym_opt(shared_object_handle voidptr, symbol string) !voidptr
sym_opt returns the address of a symbol in a given shared object, if found. Unlike sym, sym_opt returns an option.