module WebSocket::Mask
Public Class Methods
mask(p1, p2)
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VALUE method_websocket_mask(VALUE self, VALUE payload, VALUE mask) { if (mask == Qnil || RARRAY_LEN(mask) == 0) { return payload; } int n = RARRAY_LEN(payload), i, p, m; VALUE unmasked = rb_ary_new2(n); int mask_array[] = { NUM2INT(rb_ary_entry(mask, 0)), NUM2INT(rb_ary_entry(mask, 1)), NUM2INT(rb_ary_entry(mask, 2)), NUM2INT(rb_ary_entry(mask, 3)) }; for (i = 0; i < n; i++) { p = NUM2INT(rb_ary_entry(payload, i)); m = mask_array[i % 4]; rb_ary_store(unmasked, i, INT2NUM(p ^ m)); } return unmasked; }