#ifndef MULTIPROCESSING_H

#define MULTIPROCESSING_H

#define PY_SSIZE_T_CLEAN

#include "Python.h"

#include "structmember.h"

#include "pythread.h"

/*

 * Platform includes and definitions

 */

#ifdef MS_WINDOWS

#  define WIN32_LEAN_AND_MEAN

#  include <windows.h>

#  include <winsock2.h>

#  include <process.h>		     /* getpid() */

#  define SEM_HANDLE HANDLE

#  define SEM_VALUE_MAX LONG_MAX

#else

#  include <fcntl.h>                 /* O_CREAT and O_EXCL */

#  include <netinet/in.h>

#  include <sys/socket.h>

#  include <sys/uio.h>

#  include <arpa/inet.h>             /* htonl() and ntohl() */

#  if HAVE_SEM_OPEN

#    include <semaphore.h>

     typedef sem_t *SEM_HANDLE;

#  endif

#  define HANDLE int

#  define SOCKET int

#  define BOOL int

#  define UINT32 uint32_t

#  define INT32 int32_t

#  define TRUE 1

#  define FALSE 0

#  define INVALID_HANDLE_VALUE (-1)

#endif

/*

 * Issue 3110 - Solaris does not define SEM_VALUE_MAX

 */

#ifndef SEM_VALUE_MAX

#  ifdef _SEM_VALUE_MAX

#    define SEM_VALUE_MAX _SEM_VALUE_MAX

#  else

#    define SEM_VALUE_MAX INT_MAX

#  endif

#endif

/*

 * Make sure Py_ssize_t available

 */

#if PY_VERSION_HEX < 0x02050000 && !defined(PY_SSIZE_T_MIN)

   typedef int Py_ssize_t;

#  define PY_SSIZE_T_MAX INT_MAX

#  define PY_SSIZE_T_MIN INT_MIN

#  define F_PY_SSIZE_T "i"

#  define PyInt_FromSsize_t(n) PyInt_FromLong((long)n)

#else

#  define F_PY_SSIZE_T "n"

#endif

/*

 * Format codes

 */

#if SIZEOF_VOID_P == SIZEOF_LONG

#  define F_POINTER "k"

#  define T_POINTER T_ULONG

#elif defined(HAVE_LONG_LONG) && (SIZEOF_VOID_P == SIZEOF_LONG_LONG)

#  define F_POINTER "K"

#  define T_POINTER T_ULONGLONG

#else

#  error "can't find format code for unsigned integer of same size as void*"

#endif

#ifdef MS_WINDOWS

#  define F_HANDLE F_POINTER

#  define T_HANDLE T_POINTER

#  define F_SEM_HANDLE F_HANDLE

#  define T_SEM_HANDLE T_HANDLE

#  define F_DWORD "k"

#  define T_DWORD T_ULONG

#else

#  define F_HANDLE "i"

#  define T_HANDLE T_INT

#  define F_SEM_HANDLE F_POINTER

#  define T_SEM_HANDLE T_POINTER

#endif

#if PY_VERSION_HEX >= 0x03000000

#  define F_RBUFFER "y"

#else

#  define F_RBUFFER "s"

#endif

/*

 * Error codes which can be returned by functions called without GIL

 */

#define MP_SUCCESS (0)

#define MP_STANDARD_ERROR (-1)

#define MP_MEMORY_ERROR (-1001)

#define MP_END_OF_FILE (-1002)

#define MP_EARLY_END_OF_FILE (-1003)

#define MP_BAD_MESSAGE_LENGTH (-1004)

#define MP_SOCKET_ERROR (-1005)

#define MP_EXCEPTION_HAS_BEEN_SET (-1006)

PyObject *mp_SetError(PyObject *Type, int num);

/*

 * Externs - not all will really exist on all platforms

 */

extern PyObject *pickle_dumps;

extern PyObject *pickle_loads;

extern PyObject *pickle_protocol;

extern PyObject *BufferTooShort;

extern PyTypeObject SemLockType;

extern PyTypeObject ConnectionType;

extern PyTypeObject PipeConnectionType;

extern HANDLE sigint_event;

/*

 * Py3k compatibility

 */

#if PY_VERSION_HEX >= 0x03000000

#  define PICKLE_MODULE "pickle"

#  define FROM_FORMAT PyUnicode_FromFormat

#  define PyInt_FromLong PyLong_FromLong

#  define PyInt_FromSsize_t PyLong_FromSsize_t

#else

#  define PICKLE_MODULE "cPickle"

#  define FROM_FORMAT PyString_FromFormat

#endif

#ifndef PyVarObject_HEAD_INIT

#  define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,

#endif

#ifndef Py_TPFLAGS_HAVE_WEAKREFS

#  define Py_TPFLAGS_HAVE_WEAKREFS 0

#endif

/*

 * Connection definition

 */

#define CONNECTION_BUFFER_SIZE 1024

typedef struct {

	PyObject_HEAD

	HANDLE handle;

	int flags;

	PyObject *weakreflist;

	char buffer[CONNECTION_BUFFER_SIZE];

} ConnectionObject;

/*

 * Miscellaneous

 */

#define MAX_MESSAGE_LENGTH 0x7fffffff

#ifndef MIN

#  define MIN(x, y) ((x) < (y) ? x : y)

#  define MAX(x, y) ((x) > (y) ? x : y)

#endif

#endif /* MULTIPROCESSING_H */