https://github.com/python/cpython
Tip revision: 16c8eccfcf85811d1d9368aacb94b47ae8195719 authored by cvs2svn on 31 December 1997, 05:53:15 UTC
This commit was manufactured by cvs2svn to create tag 'release15'.
This commit was manufactured by cvs2svn to create tag 'release15'.
Tip revision: 16c8ecc
msvcrtmodule.c
/*********************************************************
msvcrtmodule.c
A Python interface to the Microsoft Visual C Runtime
Library, providing access to those non-portable, but
still useful routines.
Only ever compiled with an MS compiler, so no attempt
has been made to avoid MS language extensions, etc...
This may only work on NT or 95...
Author: Mark Hammond and Guido van Rossum.
Maintenance: Guido van Rossum.
***********************************************************/
#include "Python.h"
#include "malloc.h"
// Force the malloc heap to clean itself up, and free unused blocks
// back to the OS. (According to the docs, only works on NT.)
static PyObject *msvcrt_heapmin(PyObject *self, PyObject *args)
{
if (!PyArg_ParseTuple(args, ":heapmin"))
return NULL;
if (_heapmin() != 0)
return PyErr_SetFromErrno(PyExc_IOError);
Py_INCREF(Py_None);
return Py_None;
}
// Perform locking operations on a C runtime file descriptor.
static PyObject *msvcrt_locking(PyObject *self, PyObject *args)
{
int fd;
int mode;
long nbytes;
if (!PyArg_ParseTuple(args, "iil:locking", &fd, &mode, &nbytes))
return NULL;
if (_locking(fd, mode, nbytes) != 0)
return PyErr_SetFromErrno(PyExc_IOError);
Py_INCREF(Py_None);
return Py_None;
}
// Set the file translation mode for a C runtime file descriptor.
static PyObject *msvcrt_setmode(PyObject *self, PyObject *args)
{
int fd;
int flags;
if (!PyArg_ParseTuple(args,"ii:setmode", &fd, &flags))
return NULL;
flags = _setmode(fd, flags);
if (flags == -1)
return PyErr_SetFromErrno(PyExc_IOError);
return PyInt_FromLong(flags);
}
// Convert an OS file handle to a C runtime file descriptor.
static PyObject *msvcrt_open_osfhandle(PyObject *self, PyObject *args)
{
long handle;
int flags;
int fd;
if (!PyArg_ParseTuple(args, "li:open_osfhandle", &handle, &flags))
return PyErr_SetFromErrno(PyExc_IOError);
fd = _open_osfhandle(handle, flags);
if (fd == -1)
return PyErr_SetFromErrno(PyExc_IOError);
return PyInt_FromLong(fd);
}
// Convert a C runtime file descriptor to an OS file handle.
static PyObject *msvcrt_get_osfhandle(PyObject *self, PyObject *args)
{
int fd;
long handle;
if (!PyArg_ParseTuple(args,"i:get_osfhandle", &fd))
return NULL;
handle = _get_osfhandle(fd);
if (handle == -1)
return PyErr_SetFromErrno(PyExc_IOError);
return PyInt_FromLong(handle);
}
/* Console I/O */
#include <conio.h>
static PyObject *msvcrt_kbhit(PyObject *self, PyObject *args)
{
int ok;
if (!PyArg_ParseTuple(args, ":kbhit"))
return NULL;
ok = _kbhit();
return PyInt_FromLong(ok);
}
static PyObject *msvcrt_getch(PyObject *self, PyObject *args)
{
int ch;
char s[1];
if (!PyArg_ParseTuple(args, ":getch"))
return NULL;
ch = _getch();
s[0] = ch;
return PyString_FromStringAndSize(s, 1);
}
static PyObject *msvcrt_getche(PyObject *self, PyObject *args)
{
int ch;
char s[1];
if (!PyArg_ParseTuple(args, ":getche"))
return NULL;
ch = _getche();
s[0] = ch;
return PyString_FromStringAndSize(s, 1);
}
static PyObject *msvcrt_putch(PyObject *self, PyObject *args)
{
char ch;
if (!PyArg_ParseTuple(args, "c:putch", &ch))
return NULL;
_putch(ch);
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *msvcrt_ungetch(PyObject *self, PyObject *args)
{
char ch;
if (!PyArg_ParseTuple(args, "c:ungetch", &ch))
return NULL;
_ungetch(ch);
Py_INCREF(Py_None);
return Py_None;
}
/* List of functions exported by this module */
static struct PyMethodDef msvcrt_functions[] = {
{"heapmin", msvcrt_heapmin, 1},
{"locking", msvcrt_locking, 1},
{"setmode", msvcrt_setmode, 1},
{"open_osfhandle", msvcrt_open_osfhandle, 1},
{"get_osfhandle", msvcrt_get_osfhandle, 1},
{"kbhit", msvcrt_kbhit, 1},
{"getch", msvcrt_getch, 1},
{"getche", msvcrt_getche, 1},
{"putch", msvcrt_putch, 1},
{"ungetch", msvcrt_ungetch, 1},
{NULL, NULL}
};
__declspec(dllexport) void
initmsvcrt(void)
{
Py_InitModule("msvcrt", msvcrt_functions);
}