litmus-rt.git - The LITMUS^RT kernel.

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The LITMUS^RT kernel.

Bjoern Brandenburg

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path: root/lib/swiotlb.c

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>(od) ); SYSCALL( od_close(od) ); SYSCALL( close(fd) ); SYSCALL( remove(".fmlp_locks") ); } TESTCASE(not_lock_srp_be, PSN_EDF | P_FP, "don't let best-effort tasks open SRP semaphores") { int fd, od; SYSCALL( fd = open(".srp_locks", O_RDONLY | O_CREAT) ); /* BE tasks may not open SRP semaphores */ SYSCALL_FAILS(EPERM, od = open_srp_sem(fd, 0) ); SYSCALL( close(fd) ); SYSCALL( remove(".srp_locks") ); } TESTCASE(lock_srp, PSN_EDF | P_FP, "SRP acquisition and release") { int fd, od; SYSCALL( fd = open(".srp_locks", O_RDONLY | O_CREAT) ); SYSCALL( sporadic_partitioned(10, 100, 0) ); SYSCALL( task_mode(LITMUS_RT_TASK) ); SYSCALL( od = open_srp_sem(fd, 0) ); SYSCALL( litmus_lock(od) ); SYSCALL( litmus_unlock(od) ); SYSCALL( litmus_lock(od) ); SYSCALL( litmus_unlock(od) ); SYSCALL( litmus_lock(od) ); SYSCALL( litmus_unlock(od) ); /* tasks may not unlock resources they don't own */ SYSCALL_FAILS(EINVAL, litmus_unlock(od) ); SYSCALL( od_close(od) ); SYSCALL( close(fd) ); SYSCALL( remove(".srp_locks") ); } TESTCASE(lock_fmlp, PSN_EDF | GSN_EDF | P_FP, "FMLP acquisition and release") { int fd, od; SYSCALL( fd = open(".fmlp_locks", O_RDONLY | O_CREAT) ); SYSCALL( sporadic_partitioned(10, 100, 0) ); SYSCALL( task_mode(LITMUS_RT_TASK) ); SYSCALL( od = open_fmlp_sem(fd, 0) ); SYSCALL( litmus_lock(od) ); SYSCALL( litmus_unlock(od) ); SYSCALL( litmus_lock(od) ); SYSCALL( litmus_unlock(od) ); SYSCALL( litmus_lock(od) ); SYSCALL( litmus_unlock(od) ); /* tasks may not unlock resources they don't own */ SYSCALL_FAILS(EINVAL, litmus_unlock(od) ); SYSCALL( od_close(od) ); SYSCALL( close(fd) ); SYSCALL( remove(".fmlp_locks") ); }


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