Method: FFI::Pointer#free

Defined in:
ext/ffi_c/Pointer.c

#free ⇒ self

Free memory pointed by self.

Returns:

  • (self) 


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# File 'ext/ffi_c/Pointer.c', line 399

static VALUE
ptr_free(VALUE self)
{
    Pointer* ptr;

    rb_check_frozen(self);
    TypedData_Get_Struct(self, Pointer, &rbffi_pointer_data_type, ptr);

    if (ptr->allocated) {
        if (ptr->storage != NULL) {
            xfree(ptr->storage);
            ptr->storage = NULL;
        }
        ptr->allocated = false;

    } else {
        VALUE caller = rb_funcall(rb_funcall(Qnil, rb_intern("caller"), 0), rb_intern("first"), 0);

        rb_warn("calling free on non allocated pointer %s from %s", RSTRING_PTR(ptr_inspect(self)), RSTRING_PTR(rb_str_to_str(caller)));
    }

    return self;
}