source: src/tests/sched-ext-dtor.c@ bfd4974

//---------------------------------------------------------
// Barging test
// Ensures the statement order is reverse when using waitfor ^?{}
//---------------------------------------------------------

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

#include <stdbool.h>

static const unsigned long N = 5_000ul;

enum state_t {
        CTOR,
        MAIN,
        AFTER,
        END,
        DTOR
};

thread dummy_t {
        state_t state;
};

static inline void set_state( dummy_t & this, state_t state) {
        switch(state) {
                case CTOR  : break;
                case MAIN  : if( this.state != CTOR  ) { serr | "ERROR Expected state to be CTOR"  | endl; abort(); } this.state = state; break;
                case AFTER : if( this.state != MAIN  ) { serr | "ERROR Expected state to be MAIN"  | endl; abort(); } this.state = state; break;
                case END   : if( this.state != AFTER ) { serr | "ERROR Expected state to be AFTER" | endl; abort(); } this.state = state; break;
                case DTOR  : if( this.state != END   ) { serr | "ERROR Expected state to be END"   | endl; abort(); } this.state = state; break;
        }
}

void ^?{}( dummy_t & mutex this ) {
        set_state( this, DTOR );
}

void ?{}( dummy_t & this ) {
        this.state = CTOR;
}

void main( dummy_t & this ) {
        yield(((unsigned)rand48()) % 10);
        set_state( this, MAIN );
        waitfor( ^?{}, this ) {
                set_state( this, AFTER );
        }
        set_state( this, END );
}

int main() {
        sout | "Starting" | endl;
        processor p;
        for( int i = 0; i < N; i++ ){
                dummy_t dummy[4];
                yield( ((unsigned)rand48()) % 100 );
        }
        sout | "Stopping" | endl;
}