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-rw-r--r--nptl/pthreadP.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h
index 21ce6fe0b7..85fb9b8e48 100644
--- a/nptl/pthreadP.h
+++ b/nptl/pthreadP.h
@@ -97,6 +97,9 @@ enum
= PTHREAD_MUTEX_PRIO_PROTECT_NP | PTHREAD_MUTEX_ADAPTIVE_NP
};
+#define PTHREAD_MUTEX_TYPE(m) \
+ ((m)->__data.__kind)
+
/* Ceiling in __data.__lock. __data.__lock is signed, so don't
use the MSB bit in there, but in the mask also include that bit,
so that the compiler can optimize & PTHREAD_MUTEX_PRIO_CEILING_MASK
@@ -118,6 +121,11 @@ enum
| PTHREAD_MUTEXATTR_PROTOCOL_MASK | PTHREAD_MUTEXATTR_PRIO_CEILING_MASK)
+/* Check whether rwlock prefers readers. */
+#define PTHREAD_RWLOCK_PREFER_READER_P(rwlock) \
+ ((rwlock)->__data.__flags == 0)
+
+
/* Bits used in robust mutex implementation. */
#define FUTEX_WAITERS 0x80000000
#define FUTEX_OWNER_DIED 0x40000000