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v/vlib/dl/dl_nix.c.v

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1.0 KiB
V

module dl
#include <dlfcn.h>
$if linux {
#flag -ldl
}
pub const rtld_now = C.RTLD_NOW
pub const rtld_lazy = C.RTLD_LAZY
fn C.dlopen(filename &char, flags int) voidptr
fn C.dlsym(handle voidptr, symbol &char) voidptr
fn C.dlclose(handle voidptr) int
fn C.dlerror() &char
// open loads the dynamic shared object.
pub fn open(filename string, flags int) voidptr {
return C.dlopen(&char(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, &char(symbol.str))
}
// 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()
pub fn dlerror() string {
sptr := C.dlerror()
if sptr == unsafe { nil } {
return ''
}
return unsafe { cstring_to_vstring(sptr) }
}