source: src/tests/sched_internal.c @ 026a0f5

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

monitor global_t {
        int value;
};

global_t global;

condition cond;

thread Signalee {};
thread Signaler {};

void step1( global_t * mutex this ) {
        this->value = 1;
        wait( &cond );
}

void step2( global_t * mutex this ) {
        if( this->value != 1) abort();

        this->value = 2;
        signal( &cond );
}

void step3( global_t * mutex this ) {
        if( this->value != 2) abort();

        this->value = 2;
        signal( &cond );
}

void main( Signalee* this ) {
        step1( &global );
        step3( &global );
}

void main( Signaler* this ) {
        for(int i = 0; i < 10_000; i++) {
                asm volatile ("" : : : "memory");
        }

        step2( &global );
}

int main(int argc, char* argv[]) {
        assert( global.__mon.entry_queue.tail != NULL );
        processor p;
        {
                Signalee a;
                Signaler b;
        }
        if( global.value != 3) abort();
}