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1 (* Title: HOLCF/IOA/ABP/Spec.thy |
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2 Author: Olaf Müller |
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3 *) |
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4 |
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5 header {* The specification of reliable transmission *} |
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6 |
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7 theory Spec |
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8 imports IOA Action |
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9 begin |
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10 |
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11 definition |
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12 spec_sig :: "'m action signature" where |
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13 sig_def: "spec_sig = (UN m.{S_msg(m)}, |
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14 UN m.{R_msg(m)} Un {Next}, |
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15 {})" |
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16 |
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17 definition |
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18 spec_trans :: "('m action, 'm list)transition set" where |
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19 trans_def: "spec_trans = |
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20 {tr. let s = fst(tr); |
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21 t = snd(snd(tr)) |
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22 in |
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23 case fst(snd(tr)) |
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24 of |
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25 Next => t=s | (* Note that there is condition as in Sender *) |
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26 S_msg(m) => t = s@[m] | |
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27 R_msg(m) => s = (m#t) | |
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28 S_pkt(pkt) => False | |
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29 R_pkt(pkt) => False | |
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30 S_ack(b) => False | |
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31 R_ack(b) => False}" |
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32 |
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33 definition |
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34 spec_ioa :: "('m action, 'm list)ioa" where |
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35 ioa_def: "spec_ioa = (spec_sig, {[]}, spec_trans)" |
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36 |
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37 end |
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