[3bb12921] | 1 | //
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
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| 3 | //
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| 4 | // The contents of this file are covered under the licence agreement in the
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| 5 | // file "LICENCE" distributed with Cforall.
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| 6 | //
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| 7 | // io-acquire.cfa --
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| 8 | //
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| 9 | // Author : Peter A. Buhr
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| 10 | // Created On : Mon Mar 1 18:40:09 2021
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| 11 | // Last Modified By : Peter A. Buhr
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[9ee3f54] | 12 | // Last Modified On : Fri Jan 14 09:13:43 2022
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| 13 | // Update Count : 73
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[3bb12921] | 14 | //
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| 15 |
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| 16 | #include <fstream.hfa>
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| 17 | #include <thread.hfa>
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| 18 | #include <mutex_stmt.hfa>
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| 19 |
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[9ee3f54] | 20 | Duration default_preemption() { return 0; }
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| 21 |
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[3bb12921] | 22 | // above output used as input to parallel threads
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| 23 | thread T2 {};
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| 24 | void main( T2 & ) {
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| 25 | int a, b, c, d, e, f, g, h, i;
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| 26 | for ( 100 ) { // expression protection
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| 27 | mutex(sin) sin | a | b | c | d | e | f | g | h | i;
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| 28 | }
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| 29 | mutex( sin ) { // statement protection
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| 30 | for ( 100 ) {
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| 31 | sin | a | b | c | d | e | f | g | h | i;
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| 32 | }
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| 33 | }
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| 34 | { // duplicate protection demonstrating recursive lock
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| 35 | ifstream & h1( ifstream & is ) { // helper
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| 36 | mutex( is ) return is | a | b | c | d; // unnecessary mutex
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| 37 | }
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| 38 | ifstream & h2( ifstream & is ) { // helper
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| 39 | mutex( is ) return is | f | g | h | i; // unnecessary mutex
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| 40 | }
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| 41 | mutex( sin ) { // unnecessary mutex
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| 42 | for ( 5 ) {
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| 43 | mutex( sin ) {
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| 44 | sin | a | b | c | d | e | f | g | h | i;
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| 45 | sin | h1 | e | h2; // refactored code
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| 46 | }
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| 47 | }
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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 | processor p;
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| 53 | {
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| 54 | T2 t[5];
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| 55 | }
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| 56 | sout | "done";
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| 57 | }
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| 58 |
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| 59 | // Local Variables: //
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| 60 | // tab-width: 4 //
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| 61 | // compile-command: "cfa io-acquire.cfa" //
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| 62 | // End: //
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