C++ (Cpp) ta_sem_signal Examples

Example #1

File: test13.c Project: pandrews5292/Threads-Alive

void producer(void *vptr)
{
    shared_data_t *data = (shared_data_t*)vptr;

    while (!data->stop)
    {
	ta_yield();
	ta_sem_wait(&(data->emptyBuffer));

        // produce
        ta_sem_wait(&(data->pmutex));

        ta_yield();
        printf("producer filling slot %d\n", data->pindex);
        data->buffer[data->pindex] = pcount++;
        data->pindex = (data->pindex + 1) % BUFFERSIZE;

        ta_sem_signal(&(data->pmutex));
	ta_sem_signal(&(data->fullBuffer));
    }
}

Example #2

File: test13.c Project: pandrews5292/Threads-Alive

void consumer(void *vptr)
{
    shared_data_t *data = (shared_data_t*)vptr;

    while (!data->stop)
    {
	ta_yield();
	ta_sem_wait(&(data->fullBuffer));

        // consume
        ta_sem_wait(&(data->cmutex));

        printf("consumer eating slot %d\n", data->cindex);
        ta_yield();

	assert(data->buffer[data->cindex] == ccount);
        ccount++;
        data->cindex = (data->cindex + 1) % BUFFERSIZE;

        ta_sem_signal(&(data->cmutex));
	ta_sem_signal(&(data->emptyBuffer));
    }
}

Example #3

File: test08.c Project: ggallo/threads-alive

void philosophize(void *vptr)
{
    shared_data_t *data = (shared_data_t*)vptr;
    int philosopher_index = 0;

    ta_sem_wait(&data->atTableSem);
    philosopher_index = data->atTable++; 
    ta_sem_signal(&data->atTableSem);
    fprintf(stderr, "Philosopher %d has been seated\n", philosopher_index);

    while (!data->stop)
    {
        think(philosopher_index);
        take_chopsticks(philosopher_index, data);
        eat(philosopher_index);
        release_chopsticks(philosopher_index, data);
    }
}

Example #4

File: test12.c Project: ggallo/threads-alive

void producer(void *vptr)
{
    shared_data_t *data = (shared_data_t*)vptr;
    int i = 0;

    while (!data->stop)
    {
	ta_yield();
	ta_sem_wait(&(data->emptyBuffer));

        // produce
	assert(data->buffer[i] == 0xFEEDFEED);
        ta_yield();
        printf("producer filled slot %d\n", i);
	data->buffer[i] = 0xDEADBEEF;

	i = (i+1)%BUFFERSIZE;
	ta_sem_signal(&(data->fullBuffer));
    }
}

Example #5

File: test12.c Project: ggallo/threads-alive

void consumer(void *vptr)
{
    shared_data_t *data = (shared_data_t*)vptr;
    int j = 0;

    while (!data->stop)
    {
	ta_yield();
	ta_sem_wait(&(data->fullBuffer));

        // consume
	assert(data->buffer[j] == 0xDEADBEEF);
	data->buffer[j] = 0xFEEDFEED;
        ta_yield();
        printf("consumer read slot %d\n", j);

	j = (j+1)%BUFFERSIZE;

	ta_sem_signal(&(data->emptyBuffer));
    }
}

Example #6

File: test08.c Project: ggallo/threads-alive

void release_chopsticks(int i, shared_data_t *data)
{
    fprintf(stderr, "Philosopher %d is releasing chopsticks %d and %d\n", i, i, (i+1)%NPHILOSOPHERS);
    ta_sem_signal(&data->chopstickSem[i]);
    ta_sem_signal(&data->chopstickSem[(i+1)%NPHILOSOPHERS]);
}