source: src/tests/concurrent/signal/disjoint.c @ 0f56058

aaron-thesisarm-ehcleanup-dtorsdeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumwith_gc
Last change on this file since 0f56058 was 0f56058, checked in by Peter A. Buhr <pabuhr@…>, 5 years ago

divide "time" into type and functions

  • Property mode set to 100644
File size: 2.3 KB
Line 
1#include <fstream>
2#include <kernel>
3#include <monitor>
4#include <thread>
5#include <time>
6
7#ifdef LONG_TEST
8static const unsigned long N = 300_000ul;
9#else
10static const unsigned long N = 10_000ul;
11#endif
12
13#ifndef PREEMPTION_RATE
14#define PREEMPTION_RATE 10`ms
15#endif
16
17Duration default_preemption() {
18        return PREEMPTION_RATE;
19}
20
21enum state_t { WAIT, SIGNAL, BARGE };
22
23monitor global_t {};
24global_t mut;
25
26monitor global_data_t;
27void ?{}( global_data_t & this );
28void ^?{} ( global_data_t & this );
29
30monitor global_data_t {
31        int counter;
32        state_t state;
33} data;
34
35condition cond;
36
37volatile bool all_done;
38
39void ?{}( global_data_t & this ) {
40        this.counter == 0;
41        this.state = BARGE;
42}
43
44void ^?{} ( global_data_t & this ) {}
45
46//------------------------------------------------------------------------------
47// Barging logic
48void barge( global_data_t & mutex d ) {
49        d.state = BARGE;
50}
51
52thread Barger {};
53
54void main( Barger & this ) {
55        while( !all_done ) {
56                barge( data );
57                yield();
58        }
59}
60
61//------------------------------------------------------------------------------
62// Waiting logic
63bool wait( global_t & mutex m, global_data_t & mutex d ) {
64        wait( cond );
65        if( d.state != SIGNAL ) {
66                sout | "ERROR barging!" | endl;
67        }
68
69        d.counter++;
70
71        if( (d.counter % 1000) == 0 ) sout | d.counter | endl;
72
73        return d.counter < N;
74}
75
76thread Waiter {};
77
78void main( Waiter & this ) {
79        while( wait( mut, data ) ) { yield(); }
80}
81
82
83//------------------------------------------------------------------------------
84// Signalling logic
85void signal( condition & cond, global_t & mutex a, global_data_t & mutex b ) {
86        b.state = SIGNAL;
87        signal( cond );
88}
89
90void logic( global_t & mutex a ) {
91        signal( cond, a, data );
92
93        yield( random( 10 ) );
94
95        //This is technically a mutual exclusion violation but the mutex monitor protects us
96        bool running = data.counter < N && data.counter > 0;
97        if( data.state != SIGNAL && running ) {
98                sout | "ERROR Eager signal" | data.state | endl;
99        }
100}
101
102thread Signaller {};
103
104void main( Signaller & this ) {
105        while( !all_done ) {
106                logic( mut );
107                yield();
108        }
109}
110
111//------------------------------------------------------------------------------
112// Main loop
113int main(int argc, char* argv[]) {
114        srandom( time( NULL ) );
115        all_done = false;
116        processor p;
117        {
118                Signaller s;
119                Barger b[17];
120                {
121                        Waiter w[4];
122                }
123                sout | "All waiter done" | endl;
124                all_done = true;
125        }
126}
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