1  #ifndef MULTIPROCESSING_H
       2  #define MULTIPROCESSING_H
       3  
       4  #define PY_SSIZE_T_CLEAN
       5  
       6  #include "Python.h"
       7  #include "structmember.h"
       8  #include "pythread.h"
       9  
      10  /*
      11   * Platform includes and definitions
      12   */
      13  
      14  #ifdef MS_WINDOWS
      15  #  ifndef WIN32_LEAN_AND_MEAN
      16  #    define WIN32_LEAN_AND_MEAN
      17  #  endif
      18  #  include <windows.h>
      19  #  include <winsock2.h>
      20  #  include <process.h>               /* getpid() */
      21  #  ifdef Py_DEBUG
      22  #    include <crtdbg.h>
      23  #  endif
      24  #  define SEM_HANDLE HANDLE
      25  #  define SEM_VALUE_MAX LONG_MAX
      26  #  define HAVE_MP_SEMAPHORE
      27  #else
      28  #  include <fcntl.h>                 /* O_CREAT and O_EXCL */
      29  #  if defined(HAVE_SEM_OPEN) && !defined(POSIX_SEMAPHORES_NOT_ENABLED)
      30  #    define HAVE_MP_SEMAPHORE
      31  #    include <semaphore.h>
      32       typedef sem_t *SEM_HANDLE;
      33  #  endif
      34  #endif
      35  
      36  /*
      37   * Issue 3110 - Solaris does not define SEM_VALUE_MAX
      38   */
      39  #ifndef SEM_VALUE_MAX
      40      #if defined(HAVE_SYSCONF) && defined(_SC_SEM_VALUE_MAX)
      41          # define SEM_VALUE_MAX sysconf(_SC_SEM_VALUE_MAX)
      42      #elif defined(_SEM_VALUE_MAX)
      43          # define SEM_VALUE_MAX _SEM_VALUE_MAX
      44      #elif defined(_POSIX_SEM_VALUE_MAX)
      45          # define SEM_VALUE_MAX _POSIX_SEM_VALUE_MAX
      46      #else
      47          # define SEM_VALUE_MAX INT_MAX
      48      #endif
      49  #endif
      50  
      51  
      52  /*
      53   * Format codes
      54   */
      55  
      56  #if SIZEOF_VOID_P == SIZEOF_LONG
      57  #  define F_POINTER "k"
      58  #  define T_POINTER T_ULONG
      59  #elif SIZEOF_VOID_P == SIZEOF_LONG_LONG
      60  #  define F_POINTER "K"
      61  #  define T_POINTER T_ULONGLONG
      62  #else
      63  #  error "can't find format code for unsigned integer of same size as void*"
      64  #endif
      65  
      66  #ifdef MS_WINDOWS
      67  #  define F_HANDLE F_POINTER
      68  #  define T_HANDLE T_POINTER
      69  #  define F_SEM_HANDLE F_HANDLE
      70  #  define T_SEM_HANDLE T_HANDLE
      71  #else
      72  #  define F_HANDLE "i"
      73  #  define T_HANDLE T_INT
      74  #  define F_SEM_HANDLE F_POINTER
      75  #  define T_SEM_HANDLE T_POINTER
      76  #endif
      77  
      78  /*
      79   * Error codes which can be returned by functions called without GIL
      80   */
      81  
      82  #define MP_SUCCESS (0)
      83  #define MP_STANDARD_ERROR (-1)
      84  #define MP_MEMORY_ERROR (-1001)
      85  #define MP_SOCKET_ERROR (-1002)
      86  #define MP_EXCEPTION_HAS_BEEN_SET (-1003)
      87  
      88  PyObject *_PyMp_SetError(PyObject *Type, int num);
      89  
      90  /*
      91   * Externs - not all will really exist on all platforms
      92   */
      93  
      94  extern PyType_Spec _PyMp_SemLockType_spec;
      95  extern PyObject *_PyMp_sem_unlink(const char *name);
      96  
      97  #endif /* MULTIPROCESSING_H */