1 #ifndef Py_CPYTHON_PYTHREAD_H 2 # error "this header file must not be included directly" 3 #endif 4 5 // PY_TIMEOUT_MAX is the highest usable value (in microseconds) of PY_TIMEOUT_T 6 // type, and depends on the system threading API. 7 // 8 // NOTE: this isn't the same value as `_thread.TIMEOUT_MAX`. The _thread module 9 // exposes a higher-level API, with timeouts expressed in seconds and 10 // floating-point numbers allowed. 11 PyAPI_DATA(const long long) PY_TIMEOUT_MAX; 12 13 #define PYTHREAD_INVALID_THREAD_ID ((unsigned long)-1) 14 15 #ifdef HAVE_PTHREAD_H 16 /* Darwin needs pthread.h to know type name the pthread_key_t. */ 17 # include <pthread.h> 18 # define NATIVE_TSS_KEY_T pthread_key_t 19 #elif defined(NT_THREADS) 20 /* In Windows, native TSS key type is DWORD, 21 but hardcode the unsigned long to avoid errors for include directive. 22 */ 23 # define NATIVE_TSS_KEY_T unsigned long 24 #elif defined(HAVE_PTHREAD_STUBS) 25 # include "cpython/pthread_stubs.h" 26 # define NATIVE_TSS_KEY_T pthread_key_t 27 #else 28 # error "Require native threads. See https://bugs.python.org/issue31370" 29 #endif 30 31 /* When Py_LIMITED_API is not defined, the type layout of Py_tss_t is 32 exposed to allow static allocation in the API clients. Even in this case, 33 you must handle TSS keys through API functions due to compatibility. 34 */ 35 struct _Py_tss_t { 36 int _is_initialized; 37 NATIVE_TSS_KEY_T _key; 38 }; 39 40 #undef NATIVE_TSS_KEY_T 41 42 /* When static allocation, you must initialize with Py_tss_NEEDS_INIT. */ 43 #define Py_tss_NEEDS_INIT {0} 44