--- parser3/src/include/pa_threads.h 2001/01/29 12:13:14 1.3 +++ parser3/src/include/pa_threads.h 2001/03/19 15:29:38 1.7 @@ -1,5 +1,9 @@ -/* - $Id: pa_threads.h,v 1.3 2001/01/29 12:13:14 paf Exp $ +/** @file + Parser + Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexander Petrosyan (http://design.ru/paf) + + $Id: pa_threads.h,v 1.7 2001/03/19 15:29:38 paf Exp $ */ #ifndef PA_THREADS_H @@ -14,6 +18,7 @@ #ifdef MULTITHREAD +/// simple semaphore object class Mutex { uint handle; public: @@ -25,6 +30,11 @@ public: extern Mutex global_mutex; +/** @brief + Helper to ensure paired Mutex::acquire() and Mutex::release(). + + Use it with SYNCHRONIZED macro +*/ class AutoSYNCHRONIZED { bool thread_safe; public: @@ -36,14 +46,25 @@ public: if(thread_safe) global_mutex.release(); } -} +}; -#define SYNCHRONIZED(thread_safe) AutoSYNCHRONIZED autoSYNCHRONIZED(thread_safe) +/** @brief + put it to first line of a function to ensure thread safety + @verbatim + void someclass::somefunc(...) { SYNCHRONIZED(thread_safe); + ... + } + @endverbatim + + considering \a thread_safe to be the object field to flag + whether safety is really needed in this particular object instance +*/ +#define SYNCHRONIZED(athread_safe) AutoSYNCHRONIZED autoSYNCHRONIZED(athread_safe) #else // not MULTITHREAD-ed -#define SYNCHRONIZED(thread_safe) /* do nothing */ +#define SYNCHRONIZED(athread_safe) /* do nothing */ #endif