| 1 | #ifndef Py_CPYTHON_PYTHREAD_H |
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| 2 | # error "this header file must not be included directly" |
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| 3 | #endif |
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| 4 | |
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| 5 | #define PYTHREAD_INVALID_THREAD_ID ((unsigned long)-1) |
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| 6 | |
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| 7 | #ifdef HAVE_FORK |
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| 8 | /* Private function to reinitialize a lock at fork in the child process. |
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| 9 | Reset the lock to the unlocked state. |
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| 10 | Return 0 on success, return -1 on error. */ |
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| 11 | PyAPI_FUNC(int) _PyThread_at_fork_reinit(PyThread_type_lock *lock); |
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| 12 | #endif /* HAVE_FORK */ |
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| 13 | |
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| 14 | #ifdef HAVE_PTHREAD_H |
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| 15 | /* Darwin needs pthread.h to know type name the pthread_key_t. */ |
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| 16 | # include <pthread.h> |
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| 17 | # define NATIVE_TSS_KEY_T pthread_key_t |
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| 18 | #elif defined(NT_THREADS) |
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| 19 | /* In Windows, native TSS key type is DWORD, |
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| 20 | but hardcode the unsigned long to avoid errors for include directive. |
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| 21 | */ |
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| 22 | # define NATIVE_TSS_KEY_T unsigned long |
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| 23 | #elif defined(HAVE_PTHREAD_STUBS) |
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| 24 | # include "cpython/pthread_stubs.h" |
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| 25 | # define NATIVE_TSS_KEY_T pthread_key_t |
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| 26 | #else |
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| 27 | # error "Require native threads. See https://bugs.python.org/issue31370" |
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| 28 | #endif |
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| 29 | |
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| 30 | /* When Py_LIMITED_API is not defined, the type layout of Py_tss_t is |
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| 31 | exposed to allow static allocation in the API clients. Even in this case, |
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| 32 | you must handle TSS keys through API functions due to compatibility. |
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| 33 | */ |
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| 34 | struct _Py_tss_t { |
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| 35 | int _is_initialized; |
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| 36 | NATIVE_TSS_KEY_T _key; |
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| 37 | }; |
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| 38 | |
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| 39 | #undef NATIVE_TSS_KEY_T |
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| 40 | |
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| 41 | /* When static allocation, you must initialize with Py_tss_NEEDS_INIT. */ |
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| 42 | #define Py_tss_NEEDS_INIT {0} |
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| 43 | |
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