diff options
Diffstat (limited to 'Include/ceval.h')
-rw-r--r-- | Include/ceval.h | 68 |
1 files changed, 34 insertions, 34 deletions
diff --git a/Include/ceval.h b/Include/ceval.h index ad61373..e55f4b4 100644 --- a/Include/ceval.h +++ b/Include/ceval.h @@ -8,11 +8,11 @@ extern "C" { /* Interface to random parts in ceval.c */ PyAPI_FUNC(PyObject *) PyEval_CallObjectWithKeywords( - PyObject *, PyObject *, PyObject *); + PyObject *, PyObject *, PyObject *); /* Inline this */ #define PyEval_CallObject(func,arg) \ - PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL) + PyEval_CallObjectWithKeywords(func, arg, (PyObject *)NULL) PyAPI_FUNC(PyObject *) PyEval_CallFunction(PyObject *obj, const char *format, ...); @@ -45,7 +45,7 @@ PyAPI_FUNC(int) Py_MakePendingCalls(void); exceeds the current recursion limit. It raises a RuntimeError, and sets the "overflowed" flag in the thread state structure. This flag temporarily *disables* the normal protection; this allows cleanup code - to potentially outgrow the recursion limit while processing the + to potentially outgrow the recursion limit while processing the RuntimeError. * "last chance" anti-recursion protection is triggered when the recursion level exceeds "current recursion limit + 50". By construction, this @@ -67,12 +67,12 @@ PyAPI_FUNC(void) Py_SetRecursionLimit(int); PyAPI_FUNC(int) Py_GetRecursionLimit(void); #define Py_EnterRecursiveCall(where) \ - (_Py_MakeRecCheck(PyThreadState_GET()->recursion_depth) && \ - _Py_CheckRecursiveCall(where)) -#define Py_LeaveRecursiveCall() \ + (_Py_MakeRecCheck(PyThreadState_GET()->recursion_depth) && \ + _Py_CheckRecursiveCall(where)) +#define Py_LeaveRecursiveCall() \ do{ if(_Py_MakeEndRecCheck(PyThreadState_GET()->recursion_depth)) \ - PyThreadState_GET()->overflowed = 0; \ - } while(0) + PyThreadState_GET()->overflowed = 0; \ + } while(0) PyAPI_FUNC(int) _Py_CheckRecursiveCall(char *where); PyAPI_DATA(int) _Py_CheckRecursionLimit; @@ -83,15 +83,15 @@ PyAPI_DATA(int) _Py_CheckRecursionLimit; of _Py_CheckRecursionLimit for _Py_MakeEndRecCheck() to function properly. */ # define _Py_MakeRecCheck(x) \ - (++(x) > (_Py_CheckRecursionLimit += PyThreadState_GET()->overflowed - 1)) + (++(x) > (_Py_CheckRecursionLimit += PyThreadState_GET()->overflowed - 1)) #else # define _Py_MakeRecCheck(x) (++(x) > _Py_CheckRecursionLimit) #endif #define _Py_MakeEndRecCheck(x) \ - (--(x) < ((_Py_CheckRecursionLimit > 100) \ - ? (_Py_CheckRecursionLimit - 50) \ - : (3 * (_Py_CheckRecursionLimit >> 2)))) + (--(x) < ((_Py_CheckRecursionLimit > 100) \ + ? (_Py_CheckRecursionLimit - 50) \ + : (3 * (_Py_CheckRecursionLimit >> 2)))) #define Py_ALLOW_RECURSION \ do { unsigned char _old = PyThreadState_GET()->recursion_critical;\ @@ -114,31 +114,31 @@ PyAPI_FUNC(PyObject *) PyEval_EvalFrameEx(struct _frame *f, int exc); that lasts a long time and doesn't touch Python data) can allow other threads to run as follows: - ...preparations here... - Py_BEGIN_ALLOW_THREADS - ...blocking system call here... - Py_END_ALLOW_THREADS - ...interpret result here... + ...preparations here... + Py_BEGIN_ALLOW_THREADS + ...blocking system call here... + Py_END_ALLOW_THREADS + ...interpret result here... The Py_BEGIN_ALLOW_THREADS/Py_END_ALLOW_THREADS pair expands to a {}-surrounded block. To leave the block in the middle (e.g., with return), you must insert a line containing Py_BLOCK_THREADS before the return, e.g. - if (...premature_exit...) { - Py_BLOCK_THREADS - PyErr_SetFromErrno(PyExc_IOError); - return NULL; - } + if (...premature_exit...) { + Py_BLOCK_THREADS + PyErr_SetFromErrno(PyExc_IOError); + return NULL; + } An alternative is: - Py_BLOCK_THREADS - if (...premature_exit...) { - PyErr_SetFromErrno(PyExc_IOError); - return NULL; - } - Py_UNBLOCK_THREADS + Py_BLOCK_THREADS + if (...premature_exit...) { + PyErr_SetFromErrno(PyExc_IOError); + return NULL; + } + Py_UNBLOCK_THREADS For convenience, that the value of 'errno' is restored across Py_END_ALLOW_THREADS and Py_BLOCK_THREADS. @@ -170,12 +170,12 @@ PyAPI_FUNC(void) _PyEval_SetSwitchInterval(unsigned long microseconds); PyAPI_FUNC(unsigned long) _PyEval_GetSwitchInterval(void); #define Py_BEGIN_ALLOW_THREADS { \ - PyThreadState *_save; \ - _save = PyEval_SaveThread(); -#define Py_BLOCK_THREADS PyEval_RestoreThread(_save); -#define Py_UNBLOCK_THREADS _save = PyEval_SaveThread(); -#define Py_END_ALLOW_THREADS PyEval_RestoreThread(_save); \ - } + PyThreadState *_save; \ + _save = PyEval_SaveThread(); +#define Py_BLOCK_THREADS PyEval_RestoreThread(_save); +#define Py_UNBLOCK_THREADS _save = PyEval_SaveThread(); +#define Py_END_ALLOW_THREADS PyEval_RestoreThread(_save); \ + } #else /* !WITH_THREAD */ |