Last change
on this file since 550afde2 was
0aec496,
checked in by Thierry Delisle <tdelisle@…>, 4 years ago
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Property mode set to
100644
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File size:
935 bytes
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[0aec496] | 1 | #include <assert.h> |
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| 2 | #include <stdlib.hfa> |
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| 3 | |
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| 4 | #include "channel.hfa" |
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| 5 | |
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| 6 | // forall(otype T) { |
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| 7 | void ?{}( channel & this, int _size ) with(this) { |
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| 8 | buffer = anew( _size ); |
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| 9 | front = 0; |
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| 10 | back = 0; |
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| 11 | count = 0; |
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| 12 | size = _size; |
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| 13 | |
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| 14 | (lock){}; |
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| 15 | (prods){}; |
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| 16 | (cons){}; |
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| 17 | } |
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| 18 | |
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| 19 | void ^?{}( channel & this ) { |
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| 20 | delete( this.buffer ); |
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| 21 | } |
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| 22 | |
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| 23 | void put( channel & this, int elem ) with( this ) { |
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| 24 | lock( this.lock ); |
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| 25 | while( count == size) { |
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| 26 | wait( prods, this.lock ); |
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| 27 | } |
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| 28 | |
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| 29 | /* paranoid */ assert( count < size ); |
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| 30 | buffer[back] = elem; |
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| 31 | count ++; |
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| 32 | back = (back + 1) % size; |
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| 33 | |
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| 34 | notify_one( cons ); |
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| 35 | unlock( this.lock ); |
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| 36 | } |
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| 37 | |
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| 38 | int take( channel & this ) with( this ) { |
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| 39 | lock( this.lock ); |
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| 40 | while( count == 0 ) { |
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| 41 | wait( cons, this.lock ); |
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| 42 | } |
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| 43 | |
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| 44 | /* paranoid */ assert( count > 0 ); |
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| 45 | int temp = buffer[front]; |
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| 46 | count --; |
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| 47 | front = (front + 1) % size; |
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| 48 | |
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| 49 | notify_one( prods ); |
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| 50 | unlock( this.lock ); |
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| 51 | return temp; |
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| 52 | } |
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| 53 | // } |
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