ast-experimental
Last change
on this file since 84334d0 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:
1.8 KB
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Rev | Line | |
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[9319a23] | 1 | #include <locks.hfa> |
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| 2 | #include <fstream.hfa> |
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| 3 | #include <stdio.h> |
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| 4 | #include <channel.hfa> |
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| 5 | #include <thread.hfa> |
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| 6 | #include <time.hfa> |
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| 7 | #include <string.h> |
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| 8 | |
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| 9 | size_t total_operations = 0; |
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| 10 | size_t Processors = 1, Tasks = 4; |
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| 11 | |
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| 12 | owner_lock o; |
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| 13 | |
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| 14 | typedef channel( int ) Channel; |
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| 15 | |
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| 16 | Channel * chain; |
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| 17 | |
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| 18 | bool done = false; |
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| 19 | int id_counter = 0; |
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| 20 | thread Task { int id; int right; }; |
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| 21 | static inline void ?{}( Task & this ) with(this) { |
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| 22 | id = __atomic_fetch_add( &id_counter, 1, __ATOMIC_SEQ_CST ); |
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| 23 | right = (id + 1) % Tasks; |
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| 24 | } |
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| 25 | void main(Task & this) with(this) { |
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| 26 | size_t runs = 0; |
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| 27 | try { |
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| 28 | for ( ;; ) { |
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| 29 | if ( done ) break; |
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| 30 | remove( chain[id] ); |
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| 31 | insert( chain[right], 0 ); |
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| 32 | runs++; |
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| 33 | } |
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| 34 | } catch ( channel_closed * e ) {} |
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| 35 | lock( o ); |
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| 36 | total_operations += runs; |
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| 37 | unlock( o ); |
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| 38 | } |
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| 39 | |
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| 40 | |
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| 41 | int main( int argc, char * argv[] ) { |
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| 42 | switch ( argc ) { |
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| 43 | case 3: |
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| 44 | if ( strcmp( argv[2], "d" ) != 0 ) { // default ? |
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| 45 | Tasks = atoi( argv[2] ); |
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| 46 | if ( Tasks < 1 ) goto Usage; |
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| 47 | } // if |
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| 48 | case 2: |
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| 49 | if ( strcmp( argv[1], "d" ) != 0 ) { // default ? |
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| 50 | Processors = atoi( argv[1] ); |
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| 51 | if ( Processors < 1 ) goto Usage; |
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| 52 | } // if |
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| 53 | case 1: // use defaults |
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| 54 | break; |
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| 55 | default: |
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| 56 | Usage: |
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| 57 | sout | "Usage: " | argv[0] |
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| 58 | | " [ processors (> 0) | 'd' (default " | Processors |
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| 59 | | ") ] [ channel size (>= 0) | 'd' (default " | Tasks |
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| 60 | | ") ]" ; |
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| 61 | exit( EXIT_FAILURE ); |
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| 62 | } // switch |
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| 63 | processor proc[Processors - 1]; |
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| 64 | |
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| 65 | sout | "start"; |
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| 66 | |
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| 67 | chain = aalloc( Tasks ); |
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| 68 | for ( i; Tasks ) { |
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| 69 | chain[i]{ 1 }; |
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| 70 | } |
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| 71 | |
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| 72 | insert( chain[0], 0 ); |
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| 73 | { |
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| 74 | Task t[Tasks]; |
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| 75 | sleep(10`s); |
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| 76 | done = true; |
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| 77 | for ( j; Tasks ) |
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| 78 | close( chain[j] ); |
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| 79 | } |
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| 80 | |
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| 81 | // sout | total_operations; |
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| 82 | |
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| 83 | sout | "done"; |
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| 84 | |
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| 85 | adelete(chain); |
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| 86 | |
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| 87 | return 0; |
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| 88 | } |
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