From: Heather McIntyre <h...@rice.edu>
* lib/eu-config.h New macros.
[USE_LOCKS] (ONCE_CALL): (once_define, once)
Signed-off-by: Heather S. McIntyre <h...@rice.edu>
Signed-off-by: Mark Wielaard <m...@klomp.org>
---
lib/eu-config.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/lib/eu-config.h b/lib/eu-config.h
index 78a5c4fe..feb079db 100644
--- a/lib/eu-config.h
+++ b/lib/eu-config.h
@@ -33,13 +33,18 @@
# include <pthread.h>
# include <assert.h>
# define rwlock_define(class,name) class pthread_rwlock_t name
+# define once_define(class,name) class pthread_once_t name = PTHREAD_ONCE_INIT
# define RWLOCK_CALL(call) \
({ int _err = pthread_rwlock_ ## call; assert_perror (_err); })
+# define ONCE_CALL(call) \
+ ({ int _err = pthread_ ## call; assert_perror (_err); })
# define rwlock_init(lock) RWLOCK_CALL (init (&lock, NULL))
# define rwlock_fini(lock) RWLOCK_CALL (destroy (&lock))
# define rwlock_rdlock(lock) RWLOCK_CALL (rdlock (&lock))
# define rwlock_wrlock(lock) RWLOCK_CALL (wrlock (&lock))
# define rwlock_unlock(lock) RWLOCK_CALL (unlock (&lock))
+# define once(once_control, init_routine) \
+ ONCE_CALL (once (&once_control, init_routine))
#else
/* Eventually we will allow multi-threaded applications to use the
libraries. Therefore we will add the necessary locking although
@@ -50,6 +55,8 @@
# define rwlock_rdlock(lock) ((void) (lock))
# define rwlock_wrlock(lock) ((void) (lock))
# define rwlock_unlock(lock) ((void) (lock))
+# define once_define(class,name)
+# define once(once_control, init_routine) init_routine()
#endif /* USE_LOCKS */
#include <libintl.h>
--
2.41.0
