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Annotation of parser3/src/include/pa_threads.h, revision 1.4

1.1       paf         1: /*
1.4     ! paf         2:   $Id: pa_threads.h,v 1.3 2001/01/29 12:13:14 paf Exp $
1.1       paf         3: */
                      4: 
                      5: #ifndef PA_THREADS_H
                      6: #define PA_THREADS_H
                      7: 
                      8: #ifdef HAVE_CONFIG_H
                      9: #      include "pa_config.h"
                     10: #endif
                     11: 
                     12: #include "pa_types.h"
                     13: 
                     14: 
                     15: #ifdef MULTITHREAD
                     16: 
                     17: class Mutex {
                     18:        uint handle;
                     19: public:
                     20:        Mutex();
                     21:        ~Mutex();
1.2       paf        22:        void acquire();
                     23:        void release();
1.1       paf        24: };
                     25: 
1.2       paf        26: extern Mutex global_mutex;
1.1       paf        27: 
1.2       paf        28: class AutoSYNCHRONIZED {
1.3       paf        29:        bool thread_safe;
1.2       paf        30: public:
1.3       paf        31:        AutoSYNCHRONIZED(bool athread_safe) : thread_safe(athread_safe) { 
                     32:                if(thread_safe)
                     33:                        global_mutex.acquire(); 
                     34:        }
                     35:        ~AutoSYNCHRONIZED() { 
                     36:                if(thread_safe)
                     37:                        global_mutex.release(); 
                     38:        }
1.2       paf        39: }
                     40: 
1.4     ! paf        41: #define SYNCHRONIZED(athread_safe) AutoSYNCHRONIZED autoSYNCHRONIZED(athread_safe)
1.2       paf        42: 
                     43: 
                     44: #else // not MULTITHREAD-ed
                     45: 
1.4     ! paf        46: #define SYNCHRONIZED(athread_safe) /* do nothing */
1.1       paf        47: 
                     48: #endif
1.2       paf        49: 
1.1       paf        50: 
                     51: #endif