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view libgomp/testsuite/libgomp.c/appendix-a/a.40.1.c @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
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/* { dg-do compile } */ #include <omp.h> typedef struct { int a, b; omp_nest_lock_t lck; } pair; int work1 (); int work2 (); int work3 (); void incr_a (pair * p, int a) { /* Called only from incr_pair, no need to lock. */ p->a += a; } void incr_b (pair * p, int b) { /* Called both from incr_pair and elsewhere, */ /* so need a nestable lock. */ omp_set_nest_lock (&p->lck); p->b += b; omp_unset_nest_lock (&p->lck); } void incr_pair (pair * p, int a, int b) { omp_set_nest_lock (&p->lck); incr_a (p, a); incr_b (p, b); omp_unset_nest_lock (&p->lck); } void a40 (pair * p) { #pragma omp parallel sections { #pragma omp section incr_pair (p, work1 (), work2 ()); #pragma omp section incr_b (p, work3 ()); } }