ADTast-experimentalenumpthread-emulationqualifiedEnum
Last change
on this file since f2bc9fa was
487198c,
checked in by Thierry Delisle <tdelisle@…>, 5 years ago
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Apparently forgot to commit the CASCON19 presentation
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-
Property mode set to
100644
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File size:
1.0 KB
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1 | // Original |
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2 | void sum_many_async(int[] inputs, lambda_t callback); |
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3 | |
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4 | // Target |
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5 | int sum_many (int[] inputs); |
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6 | |
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7 | //================================== |
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8 | |
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9 | int sum_many(int[] inputs) { |
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10 | // setup required data |
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11 | int result; |
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12 | semaphore_t sem = { 0 }; |
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13 | |
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14 | // call async function |
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15 | sum_many_async( inputs, (int sum) { |
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16 | result = sum; |
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17 | V(sem); |
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18 | }); |
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19 | |
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20 | // wait for result |
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21 | P(sem); |
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22 | |
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23 | // return |
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24 | return result; |
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25 | } |
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26 | |
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27 | |
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28 | int sum_many_block(int[] inputs); |
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29 | int sum_many (int[] inputs); |
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30 | |
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31 | //================================== |
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32 | |
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33 | struct request_t { |
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34 | int[] inputs; |
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35 | int result; |
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36 | semaphore_t sem = { 0 }; |
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37 | }; |
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38 | |
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39 | void * call_sum_many_block(void * args) { |
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40 | request_t * req = (request_t *) args; |
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41 | req->result = sum_many_block(req->inputs); |
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42 | V(req->sem); |
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43 | } |
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44 | |
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45 | int sum_many(int[] inputs) { |
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46 | // setup required data |
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47 | request_t req = { inputs }; |
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48 | |
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49 | // create thread to |
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50 | pthread_t thrd; |
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51 | int err = pthread_fork(&thrd, 0p, call_sum_many_block, &req); |
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52 | handle(err); |
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53 | |
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54 | // wait |
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55 | P(req.sem); |
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56 | |
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57 | // Cleanup pthread |
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58 | err = pthread_join(&thrd, 0p); |
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59 | handle(err); |
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60 | |
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61 | // get result |
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62 | return req.result; |
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63 | } |
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