class Fiddle::Pinned
Public Class Methods
Fiddle::Pinned.new(object) → pinned_object
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Create a new pinned object reference. The Fiddle::Pinned
instance will prevent the GC from moving object
.
static VALUE initialize(VALUE self, VALUE ref) { struct pinned_data *data; TypedData_Get_Struct(self, struct pinned_data, &pinned_data_type, data); RB_OBJ_WRITE(self, &data->ptr, ref); return self; }
Public Instance Methods
clear
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Clear the reference to the object this is pinning.
static VALUE clear(VALUE self) { struct pinned_data *data; TypedData_Get_Struct(self, struct pinned_data, &pinned_data_type, data); data->ptr = 0; return self; }
cleared?
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Returns true if the reference has been cleared, otherwise returns false.
static VALUE cleared_p(VALUE self) { struct pinned_data *data; TypedData_Get_Struct(self, struct pinned_data, &pinned_data_type, data); if (data->ptr) { return Qfalse; } else { return Qtrue; } }
ref
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Return the object that this pinned instance references.
static VALUE ref(VALUE self) { struct pinned_data *data; TypedData_Get_Struct(self, struct pinned_data, &pinned_data_type, data); if (data->ptr) { return data->ptr; } else { rb_raise(rb_eFiddleClearedReferenceError, "`ref` called on a cleared object"); } }