diff options
| -rw-r--r-- | newlib/libc/stdlib/arc4random.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/newlib/libc/stdlib/arc4random.h b/newlib/libc/stdlib/arc4random.h index 938a80b2e..8bb72f40e 100644 --- a/newlib/libc/stdlib/arc4random.h +++ b/newlib/libc/stdlib/arc4random.h @@ -39,10 +39,29 @@ __LOCK_INIT(static, _arc4random_mutex); +#ifdef __CYGWIN__ + +extern int __isthreaded; + +#define _ARC4_LOCK() \ + do { \ + if (__isthreaded) \ + __lock_acquire (_arc4random_mutex); \ + } while (0) + +#define _ARC4_UNLOCK() \ + do { \ + if (__isthreaded) \ + __lock_release (_arc4random_mutex); \ + } while (0) +#else + #define _ARC4_LOCK() __lock_acquire(_arc4random_mutex) #define _ARC4_UNLOCK() __lock_release(_arc4random_mutex) +#endif + #ifdef _ARC4RANDOM_DATA _ARC4RANDOM_DATA #else |