diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/generic/malloc-machine.h | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/sysdeps/generic/malloc-machine.h b/sysdeps/generic/malloc-machine.h index 1ed2d50..71b95c2 100644 --- a/sysdeps/generic/malloc-machine.h +++ b/sysdeps/generic/malloc-machine.h @@ -22,25 +22,6 @@ #include <atomic.h> -#ifndef mutex_init /* No threads, provide dummy macros */ - -# define NO_THREADS - -/* The mutex functions used to do absolutely nothing, i.e. lock, - trylock and unlock would always just return 0. However, even - without any concurrently active threads, a mutex can be used - legitimately as an `in use' flag. To make the code that is - protected by a mutex async-signal safe, these macros would have to - be based on atomic test-and-set operations, for example. */ -typedef int mutex_t; - -# define mutex_init(m) (*(m) = 0) -# define mutex_lock(m) ({ *(m) = 1; 0; }) -# define mutex_trylock(m) (*(m) ? 1 : ((*(m) = 1), 0)) -# define mutex_unlock(m) (*(m) = 0) - -#endif /* !defined mutex_init */ - #ifndef atomic_full_barrier # define atomic_full_barrier() __asm ("" ::: "memory") #endif |