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Patch #923098: Share interned strings in marshal.

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Martin v. Löwis 2004-06-27 16:51:46 +00:00
parent 8d97e33bb7
commit ef82d2fdfe
6 changed files with 122 additions and 31 deletions
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17
Doc/api/utilities.tex
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@ -283,20 +283,31 @@ data must be opened in binary mode.
Numeric values are stored with the least significant byte first.
\begin{cfuncdesc}{void}{PyMarshal_WriteLongToFile}{long value, FILE *file}
The module supports two versions of the data format: version 0 is the
historical version, version 1 (new in Python 2.4) shares interned
strings in the file, and upon unmarshalling. \var{Py_MARSHAL_VERSION}
indicates the current file format (currently 1).
\begin{cfuncdesc}{void}{PyMarshal_WriteLongToFile}{long value, FILE *file, int version}
Marshal a \ctype{long} integer, \var{value}, to \var{file}. This
will only write the least-significant 32 bits of \var{value};
regardless of the size of the native \ctype{long} type.
\versionchanged[\var{version} indicates the file format]{2.4}
\end{cfuncdesc}
\begin{cfuncdesc}{void}{PyMarshal_WriteObjectToFile}{PyObject *value,
FILE *file}
FILE *file, int version}
Marshal a Python object, \var{value}, to \var{file}.
\versionchanged[\var{version} indicates the file format]{2.4}
\end{cfuncdesc}
\begin{cfuncdesc}{PyObject*}{PyMarshal_WriteObjectToString}{PyObject *value}
\begin{cfuncdesc}{PyObject*}{PyMarshal_WriteObjectToString}{PyObject *value, int version}
Return a string object containing the marshalled representation of
\var{value}.
\versionchanged[\var{version} indicates the file format]{2.4}
\end{cfuncdesc}
The following functions allow marshalled values to be read back in.