ADTast-experimental
Last change
on this file since 09965e5 was
1bcbf02,
checked in by Thierry Delisle <tdelisle@…>, 2 years ago
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Changed declarations using _Thread_local to use thread.
I'm fairly sure they do exactly the same, but thread is:
- more consistent with uC++.
- Shorter.
- Better documented.
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-
Property mode set to
100644
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File size:
1.1 KB
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Line | |
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1 | #include <kernel.hfa> |
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2 | #include <thread.hfa> |
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3 | |
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4 | __thread drand48_data buffer = { 0 }; |
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5 | int myrand() { |
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6 | long int result; |
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7 | lrand48_r(&buffer, &result); |
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8 | return result; |
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9 | } |
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10 | |
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11 | |
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12 | thread Thread {}; |
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13 | void ^?{}(Thread & mutex this) {} |
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14 | |
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15 | enum Constants { blocked_size = 20 }; |
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16 | Thread * volatile blocked[blocked_size]; |
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17 | |
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18 | void main( Thread & this ) { |
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19 | for(int i = 0; i < 1000; i++) { |
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20 | int idx = myrand() % blocked_size; |
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21 | if(blocked[idx]) { |
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22 | Thread * thrd = __atomic_exchange_n(&blocked[idx], 0p, __ATOMIC_SEQ_CST); |
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23 | unpark( *thrd ); |
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24 | } else { |
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25 | Thread * thrd = __atomic_exchange_n(&blocked[idx], &this, __ATOMIC_SEQ_CST); |
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26 | unpark( *thrd ); |
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27 | park(); |
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28 | } |
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29 | } |
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30 | printf("Done\n"); |
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31 | } |
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32 | |
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33 | // Extra thread to avoid deadlocking |
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34 | thread Unparker {}; |
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35 | |
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36 | void main( Unparker & this ) { |
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37 | while(true) { |
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38 | waitfor( ^?{} : this ) { |
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39 | break; |
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40 | } or else { |
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41 | int idx = myrand() % blocked_size; |
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42 | Thread * thrd = __atomic_exchange_n(&blocked[idx], 0p, __ATOMIC_SEQ_CST); |
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43 | unpark( *thrd ); |
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44 | yield( myrand() % 20 ); |
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45 | } |
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46 | } |
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47 | printf("Done Unparker\n"); |
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48 | } |
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49 | |
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50 | |
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51 | int main() { |
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52 | for(i ; blocked_size) { |
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53 | blocked[i] = 0p; |
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54 | } |
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55 | |
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56 | processor p[3]; |
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57 | |
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58 | Unparker u; |
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59 | { |
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60 | Thread t[20]; |
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61 | } |
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62 | } |
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