1! { dg-do run }
2
3      SUBROUTINE SKIP(ID)
4      END SUBROUTINE SKIP
5      SUBROUTINE WORK(ID)
6      END SUBROUTINE WORK
7      PROGRAM A39
8        INCLUDE "omp_lib.h"      ! or USE OMP_LIB
9        INTEGER(OMP_LOCK_KIND) LCK
10        INTEGER ID
11        CALL OMP_INIT_LOCK(LCK)
12!$OMP PARALLEL SHARED(LCK) PRIVATE(ID)
13          ID = OMP_GET_THREAD_NUM()
14          CALL OMP_SET_LOCK(LCK)
15          PRINT *, "My thread id is ", ID
16          CALL OMP_UNSET_LOCK(LCK)
17          DO WHILE (.NOT. OMP_TEST_LOCK(LCK))
18            CALL SKIP(ID)     ! We do not yet have the lock
19                              ! so we must do something else
20          END DO
21          CALL WORK(ID)       ! We now have the lock
22                              ! and can do the work
23          CALL OMP_UNSET_LOCK( LCK )
24!$OMP END PARALLEL
25        CALL OMP_DESTROY_LOCK( LCK )
26        END PROGRAM A39
27