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omp_init_lock

initialise un verrou simple.

void omp_init_lock(
   omp_lock_t *lock
);

Paramètres

Notes

Pour plus d'informations, consultez 3.2.1 Fonctions omp_init_lock and omp_init_nest_lock.

Exemple

// omp_init_lock.cpp
// compile with: /openmp
#include <stdio.h>
#include <omp.h>

omp_lock_t my_lock;

int main() {
   omp_init_lock(&my_lock);

   #pragma omp parallel num_threads(4)
   {
      int tid = omp_get_thread_num( );
      int i, j;

      for (i = 0; i < 5; ++i) {
         omp_set_lock(&my_lock);
         printf_s("Thread %d - starting locked region\n", tid);
         printf_s("Thread %d - ending locked region\n", tid);
         omp_unset_lock(&my_lock);
      }
   }

   omp_destroy_lock(&my_lock);
}
  

Voir aussi

Concepts

Fonctions OpenMP