See SF# 1751801: Windows: Add the _fileio builtin module, and undefine
HAVE_FTRUNCATE because ftruncate does not exist on Windows.
diff --git a/Modules/_fileio.c b/Modules/_fileio.c
index 3ca3172..feae513 100644
--- a/Modules/_fileio.c
+++ b/Modules/_fileio.c
@@ -22,7 +22,7 @@
#ifdef MS_WINDOWS
/* can simulate truncate with Win32 API functions; see file_truncate */
-#define HAVE_FTRUNCATE
+/* #define HAVE_FTRUNCATE */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#endif
@@ -581,6 +581,7 @@
return portable_lseek(self->fd, NULL, 1);
}
+#ifdef HAVE_FTRUNCATE
static PyObject *
fileio_truncate(PyFileIOObject *self, PyObject *args)
{
@@ -629,6 +630,7 @@
return posobj;
}
+#endif
static char *
mode_string(PyFileIOObject *self)
@@ -711,10 +713,12 @@
"\n"
"Note that not all file objects are seekable.");
+#ifdef HAVE_FTRUNCATE
PyDoc_STRVAR(truncate_doc,
"truncate([size: int]) -> None. Truncate the file to at most size bytes.\n"
"\n"
"Size defaults to the current file position, as returned by tell().");
+#endif
PyDoc_STRVAR(tell_doc,
"tell() -> int. Current file position");
@@ -747,7 +751,9 @@
{"write", (PyCFunction)fileio_write, METH_VARARGS, write_doc},
{"seek", (PyCFunction)fileio_seek, METH_VARARGS, seek_doc},
{"tell", (PyCFunction)fileio_tell, METH_VARARGS, tell_doc},
+#ifdef HAVE_FTRUNCATE
{"truncate", (PyCFunction)fileio_truncate, METH_VARARGS, truncate_doc},
+#endif
{"close", (PyCFunction)fileio_close, METH_NOARGS, close_doc},
{"seekable", (PyCFunction)fileio_seekable, METH_NOARGS, seekable_doc},
{"readable", (PyCFunction)fileio_readable, METH_NOARGS, readable_doc},
diff --git a/PC/config.c b/PC/config.c
index 8ca8cef..68fa84f 100644
--- a/PC/config.c
+++ b/PC/config.c
@@ -59,6 +59,7 @@
extern void init_lsprof(void);
extern void init_ast(void);
extern void init_types(void);
+extern void init_fileio(void);
/* tools/freeze/makeconfig.py marker for additional "extern" */
/* -- ADDMODULE MARKER 1 -- */
@@ -145,6 +146,7 @@
{"sys", NULL},
{"_types", init_types},
+ {"_fileio", init_fileio},
/* Sentinel */
{0, 0}
diff --git a/PCbuild/pythoncore.vcproj b/PCbuild/pythoncore.vcproj
index 2de1611..1da5593 100644
--- a/PCbuild/pythoncore.vcproj
+++ b/PCbuild/pythoncore.vcproj
@@ -371,6 +371,9 @@
RelativePath="..\Modules\_csv.c">
</File>
<File
+ RelativePath="..\Modules\_fileio.c">
+ </File>
+ <File
RelativePath="..\Modules\_functoolsmodule.c">
</File>
<File