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fix CO_ROUTINE_SPECIFIC bugs when variable used in multiple cpps #210

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fix CO_ROUTINE_SPECIFIC bugs when variable used in multiple cpps #210

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69 changes: 30 additions & 39 deletions co_routine_specific.h
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Original file line number Diff line number Diff line change
Expand Up @@ -44,43 +44,34 @@ int main()
extern int co_setspecific( pthread_key_t key, const void *value );
extern void * co_getspecific( pthread_key_t key );

#define CO_ROUTINE_SPECIFIC( name,y ) \
\
static pthread_once_t _routine_once_##name = PTHREAD_ONCE_INIT; \
static pthread_key_t _routine_key_##name;\
static int _routine_init_##name = 0;\
static void _routine_make_key_##name() \
{\
(void) pthread_key_create(&_routine_key_##name, NULL); \
}\
template <class T>\
class clsRoutineData_routine_##name\
{\
public:\
inline T *operator->()\
{\
if( !_routine_init_##name ) \
{\
pthread_once( &_routine_once_##name,_routine_make_key_##name );\
_routine_init_##name = 1;\
}\
T* p = (T*)co_getspecific( _routine_key_##name );\
if( !p )\
{\
p = (T*)calloc(1,sizeof( T ));\
int ret = co_setspecific( _routine_key_##name,p) ;\
if ( ret )\
{\
if ( p )\
{\
free(p);\
p = NULL;\
}\
}\
}\
return p;\
}\
};\
\
static clsRoutineData_routine_##name<name> y;
template <class T>
class clsCoSpecificData {
public:
T* operator->() {
T* p = static_cast<T*>(co_getspecific(key_));
if (p != NULL) {
return p;
}

p = static_cast<T*>(calloc(1, sizeof(T)));
int err = co_setspecific(key_, p);
if (err == 0) {
return p;
}

free(p);
return NULL;
}

static clsCoSpecificData& GetInstance() {
static clsCoSpecificData instance;
return instance;
}

private:
clsCoSpecificData() { pthread_key_create(&key_, NULL); }

pthread_key_t key_;
};

#define CO_ROUTINE_SPECIFIC(Cls, var) static clsCoSpecificData<Cls>& var = clsCoSpecificData<Cls>::GetInstance();