Last change
on this file since 748877f was
c26bea2a,
checked in by Peter A. Buhr <pabuhr@…>, 18 months ago
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first attempt at renaming directory tests/concurrent to tests/concurrency to harmonize with other concurrency directory names
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-
Property mode set to
100644
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File size:
968 bytes
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Line | |
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1 | #include <fstream.hfa> |
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2 | #include <locks.hfa> |
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3 | #include <thread.hfa> |
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4 | |
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5 | const unsigned int num_times = 50000; |
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6 | |
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7 | struct MutexObj { |
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8 | mcs_lock l; |
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9 | thread$ * id; |
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10 | size_t sum; |
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11 | }; |
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12 | |
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13 | MutexObj mo; |
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14 | |
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15 | void trash() { |
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16 | unsigned t[100]; |
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17 | for(i; 100) { |
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18 | t[i] = 0xDEADBEEF; |
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19 | } |
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20 | } |
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21 | |
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22 | unsigned cs() { |
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23 | thread$ * me = active_thread(); |
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24 | unsigned value = (unsigned)me; |
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25 | mcs_node n; |
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26 | lock(mo.l, n); |
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27 | { |
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28 | size_t tsum = mo.sum; |
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29 | mo.id = me; |
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30 | yield(random(5)); |
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31 | if(mo.id != me) sout | "Intruder!"; |
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32 | mo.sum = tsum + value; |
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33 | } |
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34 | unlock(mo.l, n); |
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35 | return value; |
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36 | } |
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37 | |
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38 | thread LockCheck { |
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39 | size_t sum; |
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40 | }; |
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41 | |
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42 | void main(LockCheck & this) { |
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43 | this.sum = 0; |
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44 | for(num_times) { |
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45 | trash(); |
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46 | this.sum += cs(); |
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47 | trash(); |
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48 | yield(random(10)); |
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49 | } |
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50 | } |
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51 | |
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52 | int main() { |
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53 | size_t sum = -32; |
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54 | mo.sum = -32; |
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55 | processor p[2]; |
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56 | sout | "Starting"; |
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57 | { |
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58 | LockCheck checkers[13]; |
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59 | for(i;13) { |
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60 | sum += join(checkers[i]).sum; |
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61 | } |
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62 | } |
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63 | sout | "Done!"; |
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64 | if(sum == mo.sum) sout | "Match!"; |
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65 | else sout | "No Match!" | sum | "vs" | mo.sum; |
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66 | } |
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