| from libcpp cimport bool | |
| cdef extern from "<latch>" namespace "std" nogil: | |
| # Note on thread safety: | |
| # For any of the blocking functions, you should be very careful | |
| # to ensure that you are not deadlocked on the GIL. | |
| cdef cppclass latch: | |
| latch(ptrdiff_t expected) | |
| void count_down() except+ | |
| void count_down(ptrdiff_t n) except+ | |
| bool try_wait() | |
| void wait() except+ | |
| void arrive_and_wait() except+ | |
| void arrive_and_wait(ptrdiff_t n) except+ | |
| ptrdiff_t max() | |