v/vlib/dl/dl_nix.c.v

module dl

#include <dlfcn.h>
pub const (
	rtld_now  = C.RTLD_NOW
	rtld_lazy = C.RTLD_LAZY
	dl_ext    = get_shared_library_extension()
)

fn C.dlopen(filename charptr, flags int) voidptr

fn C.dlsym(handle voidptr, symbol charptr) voidptr

fn C.dlclose(handle voidptr) int

// open loads the dynamic shared object.
pub fn open(filename string, flags int) voidptr {
	return C.dlopen(filename.str, flags)
}

// close frees a given shared object.
pub fn close(handle voidptr) bool {
	return C.dlclose(handle) == 0
}

// sym returns an address of a symbol in a given shared object.
pub fn sym(handle voidptr, symbol string) voidptr {
	return C.dlsym(handle, symbol.str)
}

pub fn get_shared_library_extension() string {
	mut res := '.so'
	$if macos {
		res = '.dylib'
	}
	$if windows {
		res = '.dll'
	}
	return res
}