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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <semaphore.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <assert.h>
#include "semconfig.h"
sem_t *mysem = NULL, *mycnt = NULL;
pid_t child;
int main(int argc, char **argv) {
int semval = 0;
if ( (mysem = sem_open(TESTSEM, 0, S_IRUSR | S_IWUSR, 1)) != NULL &&
(mycnt = sem_open(CNTSEM, 0, S_IRUSR | S_IWUSR, 1)) != NULL ) {
assert( sem_getvalue(mycnt, &semval) == 0 );
printf("factory producing %d items\n", semval);
while ( semval-- >= 0 ) {
usleep(250);
LOG("consumer: -1");
assert( sem_wait(mysem) == 0 );
printf("remaining: %d\n", semval);
}
} else {
exit(1);
}
assert( sem_close(mysem) == 0 );
assert( sem_unlink(TESTSEM) == 0 && sem_unlink(CNTSEM) == 0 );
exit(0);
}
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