diff options
Diffstat (limited to 'Cython/Utility/MemoryView.pyx')
| -rw-r--r-- | Cython/Utility/MemoryView.pyx | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/Cython/Utility/MemoryView.pyx b/Cython/Utility/MemoryView.pyx index 6ca5fab9b..8fa3c926a 100644 --- a/Cython/Utility/MemoryView.pyx +++ b/Cython/Utility/MemoryView.pyx @@ -23,6 +23,7 @@ cdef extern from "<string.h>": void *memset(void *b, int c, size_t len) cdef extern from *: + bint CYTHON_ATOMICS int __Pyx_GetBuffer(object, Py_buffer *, int) except -1 void __Pyx_ReleaseBuffer(Py_buffer *) @@ -351,14 +352,15 @@ cdef class memoryview(object): (<__pyx_buffer *> &self.view).obj = Py_None Py_INCREF(Py_None) - global __pyx_memoryview_thread_locks_used - if __pyx_memoryview_thread_locks_used < THREAD_LOCKS_PREALLOCATED: - self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used] - __pyx_memoryview_thread_locks_used += 1 - if self.lock is NULL: - self.lock = PyThread_allocate_lock() + if not CYTHON_ATOMICS: + global __pyx_memoryview_thread_locks_used + if __pyx_memoryview_thread_locks_used < THREAD_LOCKS_PREALLOCATED: + self.lock = __pyx_memoryview_thread_locks[__pyx_memoryview_thread_locks_used] + __pyx_memoryview_thread_locks_used += 1 if self.lock is NULL: - raise MemoryError + self.lock = PyThread_allocate_lock() + if self.lock is NULL: + raise MemoryError if flags & PyBUF_FORMAT: self.dtype_is_object = (self.view.format[0] == b'O' and self.view.format[1] == b'\0') |