Merged revisions 64104,64117 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

........
  r64104 | benjamin.peterson | 2008-06-10 21:40:25 -0500 (Tue, 10 Jun 2008) | 2 lines

  add the multiprocessing package to fulfill PEP 371
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  r64117 | benjamin.peterson | 2008-06-11 07:26:31 -0500 (Wed, 11 Jun 2008) | 2 lines

  fix import of multiprocessing by juggling imports
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Modules/_multiprocessing/multiprocessing.h

@@ -0,0 +1,163 @@
+#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 <sys/socket.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
+
+/*
+ * 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 PY_FORMAT_SIZE_T ""
+#  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 */