diff options
Diffstat (limited to 'util/mutex.h')
| -rw-r--r-- | util/mutex.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/util/mutex.h b/util/mutex.h index d2f69e7..9787bfb 100644 --- a/util/mutex.h +++ b/util/mutex.h @@ -72,7 +72,7 @@ class Mutex { MutexType mutex_; // Catch the error of writing Mutex when intending MutexLock. - Mutex(Mutex *ignored) {} + Mutex(Mutex *ignored); // Disallow "evil" constructors Mutex(const Mutex&); void operator=(const Mutex&); @@ -185,6 +185,27 @@ class WriterMutexLock { #define ReaderMutexLock(x) COMPILE_ASSERT(0, rmutex_lock_decl_missing_var_name) #define WriterMutexLock(x) COMPILE_ASSERT(0, wmutex_lock_decl_missing_var_name) +// Provide safe way to declare and use global, linker-initialized mutex. Sigh. +#ifdef HAVE_PTHREAD + +#define GLOBAL_MUTEX(name) \ + static pthread_mutex_t (name) = PTHREAD_MUTEX_INITIALIZER +#define GLOBAL_MUTEX_LOCK(name) \ + pthread_mutex_lock(&(name)) +#define GLOBAL_MUTEX_UNLOCK(name) \ + pthread_mutex_unlock(&(name)) + +#else + +#define GLOBAL_MUTEX(name) \ + static Mutex name +#define GLOBAL_MUTEX_LOCK(name) \ + name.Lock() +#define GLOBAL_MUTEX_UNLOCK(name) \ + name.Unlock() + +#endif + } // namespace re2 #endif /* #define RE2_UTIL_MUTEX_H_ */ |