source: src/tests/concurrent/waitfor/statment.c @ cc344be

#include <fstream>
#include <kernel>
#include <monitor>
#include <thread>

#include <stdbool.h>

monitor M {
        int index;
        int last_val;
        int calls[7];
};

volatile bool start = false;

void ?{}( M & this ) {
        this.index = 0;
        this.last_val = 0;
        for( int i = 0; i < 7; i++ ) {
                this.calls[i] = 100; //10_000;
        }
}

void ^?{} ( M &  mutex this ) {}

int get_index( M & mutex this ) {
        this.index += 1;
        return this.index;
}

bool call1( M & mutex this ) {
        this.last_val = 1;
        this.calls[0] -= 1;
        return this.calls[0] > 0;
}

bool call2( M & mutex this ) {
        this.last_val = 2;
        this.calls[1] -= 1;
        return this.calls[1] > 0;
}

bool call3( M & mutex this ) {
        this.last_val = 3;
        this.calls[2] -= 1;
        return this.calls[2] > 0;
}

bool call4( M & mutex this ) {
        this.last_val = 4;
        this.calls[3] -= 1;
        return this.calls[3] > 0;
}

bool call5( M & mutex this ) {
        this.last_val = 5;
        this.calls[4] -= 1;
        return this.calls[4] > 0;
}

bool call6( M & mutex this ) {
        this.last_val = 6;
        this.calls[5] -= 1;
        return this.calls[5] > 0;
}

bool call7( M & mutex this ) {
        this.last_val = 7;
        this.calls[6] -= 1;
        return this.calls[6] > 0;
}

M m;
thread caller{};

bool call( int index ) {
        switch( index ) {
                case 1: return call1( m );
                case 2: return call2( m );
                case 3: return call3( m );
                case 4: return call4( m );
                case 5: return call5( m );
                case 6: return call6( m );
                case 7: return call7( m );
                default :
                        serr | "Incorrect index" | index | endl;
                        abort();
        }
}

void main( caller & this ) {
        int index = get_index( m );
        while( !start ) yield();
        while( call( index ) );
}

void do_wait( M & mutex this ) {
        bool done = false;

        start = true;

        while( !done ) {
                   waitfor( get_index, this );
                or waitfor( call1, this ) { sout | "Statement" | endl; if( this.last_val != 1 ) { serr | "Incorrect index: expected" | 1 | "got" | this.last_val | endl; } }
                or waitfor( call2, this ) { sout | "Statement" | endl; if( this.last_val != 2 ) { serr | "Incorrect index: expected" | 2 | "got" | this.last_val | endl; } }
                or waitfor( call3, this ) { sout | "Statement" | endl; if( this.last_val != 3 ) { serr | "Incorrect index: expected" | 3 | "got" | this.last_val | endl; } }
                or waitfor( call4, this ) { sout | "Statement" | endl; if( this.last_val != 4 ) { serr | "Incorrect index: expected" | 4 | "got" | this.last_val | endl; } }
                or waitfor( call5, this ) { sout | "Statement" | endl; if( this.last_val != 5 ) { serr | "Incorrect index: expected" | 5 | "got" | this.last_val | endl; } }
                or waitfor( call6, this ) { sout | "Statement" | endl; if( this.last_val != 6 ) { serr | "Incorrect index: expected" | 6 | "got" | this.last_val | endl; } }
                or waitfor( call7, this ) { sout | "Statement" | endl; if( this.last_val != 7 ) { serr | "Incorrect index: expected" | 7 | "got" | this.last_val | endl; } }

                done = true;
                for( int i = 0; i < 7; i++ ) {
                        if( this.calls[i] > 0 ) {
                                done = false;
                                break;
                        }
                }
        }
}

thread waiter{};

void main( waiter & this ) {
        do_wait( m );
}

int main() {
        processor p[2];
        sout | "Starting" | endl;
        {
                caller c[7];
                waiter w;
        }
        sout | "Stopping" | endl;
}