Mercurial > cpython-lru_cache-weakref

annotate Include/fileobject.h @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 3055e61f1e66
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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825041fc8e2c Rip out the file object's implementation.
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1 /* File object interface (what's left of it -- see io.py) */
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3 #ifndef Py_FILEOBJECT_H
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4 #define Py_FILEOBJECT_H
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5 #ifdef __cplusplus
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6 extern "C" {
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7 #endif
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9 #define PY_STDIOTEXTMODE "b"
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11 PyAPI_FUNC(PyObject *) PyFile_FromFd(int, const char *, const char *, int,
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12 const char *, const char *,
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13 const char *, int);
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14 PyAPI_FUNC(PyObject *) PyFile_GetLine(PyObject *, int);
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15 PyAPI_FUNC(int) PyFile_WriteObject(PyObject *, PyObject *, int);
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16 PyAPI_FUNC(int) PyFile_WriteString(const char *, PyObject *);
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17 PyAPI_FUNC(int) PyObject_AsFileDescriptor(PyObject *);
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18 #ifndef Py_LIMITED_API
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19 PyAPI_FUNC(char *) Py_UniversalNewlineFgets(char *, int, FILE*, PyObject *);
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20 #endif
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22 /* The default encoding used by the platform file system APIs
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23 If non-NULL, this is different than the default encoding for strings
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24 */
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25 PyAPI_DATA(const char *) Py_FileSystemDefaultEncoding;
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26 PyAPI_DATA(int) Py_HasFileSystemDefaultEncoding;
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28 /* Internal API
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30 The std printer acts as a preliminary sys.stderr until the new io
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31 infrastructure is in place. */
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32 #ifndef Py_LIMITED_API
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33 PyAPI_FUNC(PyObject *) PyFile_NewStdPrinter(int);
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34 PyAPI_DATA(PyTypeObject) PyStdPrinter_Type;
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36 #if defined _MSC_VER && _MSC_VER >= 1400
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37 /* A routine to check if a file descriptor is valid on Windows. Returns 0
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38 * and sets errno to EBADF if it isn't. This is to avoid Assertions
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39 * from various functions in the Windows CRT beginning with
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40 * Visual Studio 2005
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41 */
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42 int _PyVerify_fd(int fd);
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43 #else
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44 #define _PyVerify_fd(A) (1) /* dummy */
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45 #endif
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46 #endif /* Py_LIMITED_API */
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47
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48 /* A routine to check if a file descriptor can be select()-ed. */
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49 #ifdef HAVE_SELECT
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50 #define _PyIsSelectable_fd(FD) (((FD) >= 0) && ((FD) < FD_SETSIZE))
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51 #else
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52 #define _PyIsSelectable_fd(FD) (1)
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53 #endif /* HAVE_SELECT */
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55 #ifdef __cplusplus
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56 }
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57 #endif
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58 #endif /* !Py_FILEOBJECT_H */