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#include <sys/wait.h> /* for waitpid() */
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#include "tests.h"
#include "litmus.h"
TESTCASE(fmlp_not_active, C_EDF | PFAIR | LINUX,
"don't open FMLP semaphores if FMLP is not supported")
{
int fd;
SYSCALL( fd = open(".fmlp_locks", O_RDONLY | O_CREAT, S_IRUSR) );
ASSERT(fd != -1);
SYSCALL_FAILS(ENXIO, open_fmlp_sem(fd, 0) );
SYSCALL( close(fd) );
SYSCALL( remove(".fmlp_locks") );
}
TESTCASE(invalid_od, ALL,
"reject invalid object descriptors")
{
SYSCALL_FAILS( EINVAL, litmus_lock(3) );
SYSCALL_FAILS( EINVAL, litmus_unlock(3) );
SYSCALL_FAILS( EINVAL, od_close(3) );
SYSCALL_FAILS( EINVAL, litmus_lock(-1) );
SYSCALL_FAILS( EINVAL, litmus_unlock(-1) );
SYSCALL_FAILS( EINVAL, od_close(-1) );
}
TESTCASE(invalid_obj_type, ALL,
"reject invalid object types")
{
SYSCALL_FAILS( EINVAL, od_open(0, -1, 0) );
SYSCALL_FAILS( EINVAL, od_open(0, 10, 0) );
}
TESTCASE(not_inherit_od, GSN_EDF | PSN_EDF,
"don't inherit FDSO handles across fork")
{
int fd, od, pid, status;
SYSCALL( fd = open(".fmlp_locks", O_RDONLY | O_CREAT, S_IRUSR) );
SYSCALL( od = open_fmlp_sem(fd, 0) );
pid = fork();
ASSERT( pid != -1 );
/* must be an RT task to lock at all */
SYSCALL( sporadic_partitioned(ms2ns(10), ms2ns(100), 0) );
SYSCALL( task_mode(LITMUS_RT_TASK) );
if (pid == 0) {
/* child */
SYSCALL_FAILS(EINVAL, litmus_lock(od) );
SYSCALL_FAILS(EINVAL, litmus_unlock(od) );
SYSCALL( task_mode(BACKGROUND_TASK) );
exit(0);
} else {
SYSCALL( litmus_lock(od) );
SYSCALL( litmus_unlock(od) );
SYSCALL( litmus_lock(od) );
SYSCALL( litmus_unlock(od) );
SYSCALL( task_mode(BACKGROUND_TASK) );
SYSCALL( waitpid(pid, &status, 0) );
ASSERT(WEXITSTATUS(status) == 0);
}
SYSCALL( od_close(od) );
SYSCALL( close(fd) );
SYSCALL( remove(".fmlp_locks") );
}
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