mirror of
https://github.com/python/cpython.git
synced 2026-04-04 19:13:16 +00:00
Remove the dl module per PEP 3108.
This commit is contained in:
Neal Norwitz
parent
e7789b186d
commit
6cf49cf106
11 changed files with 5 additions and 467 deletions
|
|
@ -295,14 +295,6 @@ _symtable symtablemodule.c
|
|||
#_curses_panel _curses_panel.c -lpanel -lncurses
|
||||
|
||||
|
||||
# Generic (SunOS / SVR4) dynamic loading module.
|
||||
# This is not needed for dynamic loading of Python modules --
|
||||
# it is a highly experimental and dangerous device for calling
|
||||
# *arbitrary* C functions in *arbitrary* shared libraries:
|
||||
|
||||
#dl dlmodule.c
|
||||
|
||||
|
||||
# Modules that provide persistent dictionary-like semantics. You will
|
||||
# probably want to arrange for at least one of them to be available on
|
||||
# your machine, though none are defined by default because of library
|
||||
|
|
|
|||
|
|
@ -1,279 +0,0 @@
|
|||
|
||||
/* dl module */
|
||||
|
||||
#include "Python.h"
|
||||
|
||||
#include <dlfcn.h>
|
||||
|
||||
#ifdef __VMS
|
||||
#include <unistd.h>
|
||||
#endif
|
||||
|
||||
#ifndef RTLD_LAZY
|
||||
#define RTLD_LAZY 1
|
||||
#endif
|
||||
|
||||
typedef void *PyUnivPtr;
|
||||
typedef struct {
|
||||
PyObject_HEAD
|
||||
PyUnivPtr *dl_handle;
|
||||
} dlobject;
|
||||
|
||||
static PyTypeObject Dltype;
|
||||
|
||||
static PyObject *Dlerror;
|
||||
|
||||
static PyObject *
|
||||
newdlobject(PyUnivPtr *handle)
|
||||
{
|
||||
dlobject *xp;
|
||||
xp = PyObject_New(dlobject, &Dltype);
|
||||
if (xp == NULL)
|
||||
return NULL;
|
||||
xp->dl_handle = handle;
|
||||
return (PyObject *)xp;
|
||||
}
|
||||
|
||||
static void
|
||||
dl_dealloc(dlobject *xp)
|
||||
{
|
||||
if (xp->dl_handle != NULL)
|
||||
dlclose(xp->dl_handle);
|
||||
PyObject_Del(xp);
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
dl_close(dlobject *xp)
|
||||
{
|
||||
if (xp->dl_handle != NULL) {
|
||||
dlclose(xp->dl_handle);
|
||||
xp->dl_handle = NULL;
|
||||
}
|
||||
Py_INCREF(Py_None);
|
||||
return Py_None;
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
dl_sym(dlobject *xp, PyObject *args)
|
||||
{
|
||||
char *name;
|
||||
PyUnivPtr *func;
|
||||
if (PyUnicode_Check(args)) {
|
||||
name = PyUnicode_AsString(args);
|
||||
} else {
|
||||
PyErr_Format(PyExc_TypeError, "expected string, found %.200s",
|
||||
Py_TYPE(args)->tp_name);
|
||||
return NULL;
|
||||
}
|
||||
func = dlsym(xp->dl_handle, name);
|
||||
if (func == NULL) {
|
||||
Py_INCREF(Py_None);
|
||||
return Py_None;
|
||||
}
|
||||
return PyLong_FromLong((long)func);
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
dl_call(dlobject *xp, PyObject *args)
|
||||
{
|
||||
PyObject *name;
|
||||
long (*func)(long, long, long, long, long,
|
||||
long, long, long, long, long);
|
||||
long alist[10];
|
||||
long res;
|
||||
Py_ssize_t i;
|
||||
Py_ssize_t n = PyTuple_Size(args);
|
||||
if (n < 1) {
|
||||
PyErr_SetString(PyExc_TypeError, "at least a name is needed");
|
||||
return NULL;
|
||||
}
|
||||
name = PyTuple_GetItem(args, 0);
|
||||
if (!PyUnicode_Check(name)) {
|
||||
PyErr_SetString(PyExc_TypeError,
|
||||
"function name must be a string");
|
||||
return NULL;
|
||||
}
|
||||
func = (long (*)(long, long, long, long, long,
|
||||
long, long, long, long, long))
|
||||
dlsym(xp->dl_handle, PyUnicode_AsString(name));
|
||||
if (func == NULL) {
|
||||
PyErr_SetString(PyExc_ValueError, dlerror());
|
||||
return NULL;
|
||||
}
|
||||
if (n-1 > 10) {
|
||||
PyErr_SetString(PyExc_TypeError,
|
||||
"too many arguments (max 10)");
|
||||
return NULL;
|
||||
}
|
||||
for (i = 1; i < n; i++) {
|
||||
PyObject *v = PyTuple_GetItem(args, i);
|
||||
if (PyLong_Check(v)) {
|
||||
alist[i-1] = PyLong_AsLong(v);
|
||||
if (alist[i-1] == -1 && PyErr_Occurred())
|
||||
return NULL;
|
||||
} else if (PyUnicode_Check(v))
|
||||
alist[i-1] = (long)PyUnicode_AsString(v);
|
||||
else if (v == Py_None)
|
||||
alist[i-1] = (long) ((char *)NULL);
|
||||
else {
|
||||
PyErr_SetString(PyExc_TypeError,
|
||||
"arguments must be int, string or None");
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
for (; i <= 10; i++)
|
||||
alist[i-1] = 0;
|
||||
res = (*func)(alist[0], alist[1], alist[2], alist[3], alist[4],
|
||||
alist[5], alist[6], alist[7], alist[8], alist[9]);
|
||||
return PyLong_FromLong(res);
|
||||
}
|
||||
|
||||
static PyMethodDef dlobject_methods[] = {
|
||||
{"call", (PyCFunction)dl_call, METH_VARARGS},
|
||||
{"sym", (PyCFunction)dl_sym, METH_O},
|
||||
{"close", (PyCFunction)dl_close, METH_NOARGS},
|
||||
{NULL, NULL} /* Sentinel */
|
||||
};
|
||||
|
||||
static PyObject *
|
||||
dl_getattr(dlobject *xp, char *name)
|
||||
{
|
||||
return Py_FindMethod(dlobject_methods, (PyObject *)xp, name);
|
||||
}
|
||||
|
||||
|
||||
static PyTypeObject Dltype = {
|
||||
PyVarObject_HEAD_INIT(NULL, 0)
|
||||
"dl.dl", /*tp_name*/
|
||||
sizeof(dlobject), /*tp_basicsize*/
|
||||
0, /*tp_itemsize*/
|
||||
/* methods */
|
||||
(destructor)dl_dealloc, /*tp_dealloc*/
|
||||
0, /*tp_print*/
|
||||
(getattrfunc)dl_getattr,/*tp_getattr*/
|
||||
0, /*tp_setattr*/
|
||||
0, /*tp_compare*/
|
||||
0, /*tp_repr*/
|
||||
0, /*tp_as_number*/
|
||||
0, /*tp_as_sequence*/
|
||||
0, /*tp_as_mapping*/
|
||||
0, /*tp_hash*/
|
||||
};
|
||||
|
||||
static PyObject *
|
||||
dl_open(PyObject *self, PyObject *args)
|
||||
{
|
||||
char *name;
|
||||
int mode;
|
||||
PyUnivPtr *handle;
|
||||
if (sizeof(int) != sizeof(long) ||
|
||||
sizeof(long) != sizeof(char *)) {
|
||||
PyErr_SetString(PyExc_SystemError,
|
||||
"module dl requires sizeof(int) == sizeof(long) == sizeof(char*)");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (PyArg_ParseTuple(args, "z:open", &name))
|
||||
mode = RTLD_LAZY;
|
||||
else {
|
||||
PyErr_Clear();
|
||||
if (!PyArg_ParseTuple(args, "zi:open", &name, &mode))
|
||||
return NULL;
|
||||
#ifndef RTLD_NOW
|
||||
if (mode != RTLD_LAZY) {
|
||||
PyErr_SetString(PyExc_ValueError, "mode must be 1");
|
||||
return NULL;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
handle = dlopen(name, mode);
|
||||
if (handle == NULL) {
|
||||
PyErr_SetString(Dlerror, dlerror());
|
||||
return NULL;
|
||||
}
|
||||
#ifdef __VMS
|
||||
/* Under OpenVMS dlopen doesn't do any check, just save the name
|
||||
* for later use, so we have to check if the file is readable,
|
||||
* the name can be a logical or a file from SYS$SHARE.
|
||||
*/
|
||||
if (access(name, R_OK)) {
|
||||
char fname[strlen(name) + 20];
|
||||
strcpy(fname, "SYS$SHARE:");
|
||||
strcat(fname, name);
|
||||
strcat(fname, ".EXE");
|
||||
if (access(fname, R_OK)) {
|
||||
dlclose(handle);
|
||||
PyErr_SetString(Dlerror,
|
||||
"File not found or protection violation");
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
return newdlobject(handle);
|
||||
}
|
||||
|
||||
static PyMethodDef dl_methods[] = {
|
||||
{"open", dl_open, METH_VARARGS},
|
||||
{NULL, NULL} /* sentinel */
|
||||
};
|
||||
|
||||
/* From socketmodule.c
|
||||
* Convenience routine to export an integer value.
|
||||
*
|
||||
* Errors are silently ignored, for better or for worse...
|
||||
*/
|
||||
static void
|
||||
insint(PyObject *d, char *name, int value)
|
||||
{
|
||||
PyObject *v = PyLong_FromLong((long) value);
|
||||
if (!v || PyDict_SetItemString(d, name, v))
|
||||
PyErr_Clear();
|
||||
|
||||
Py_XDECREF(v);
|
||||
}
|
||||
|
||||
PyMODINIT_FUNC
|
||||
initdl(void)
|
||||
{
|
||||
PyObject *m, *d, *x;
|
||||
|
||||
/* Initialize object type */
|
||||
Py_TYPE(&Dltype) = &PyType_Type;
|
||||
|
||||
/* Create the module and add the functions */
|
||||
m = Py_InitModule("dl", dl_methods);
|
||||
if (m == NULL)
|
||||
return;
|
||||
|
||||
/* Add some symbolic constants to the module */
|
||||
d = PyModule_GetDict(m);
|
||||
Dlerror = x = PyErr_NewException("dl.error", NULL, NULL);
|
||||
PyDict_SetItemString(d, "error", x);
|
||||
x = PyLong_FromLong((long)RTLD_LAZY);
|
||||
PyDict_SetItemString(d, "RTLD_LAZY", x);
|
||||
#define INSINT(X) insint(d,#X,X)
|
||||
#ifdef RTLD_NOW
|
||||
INSINT(RTLD_NOW);
|
||||
#endif
|
||||
#ifdef RTLD_NOLOAD
|
||||
INSINT(RTLD_NOLOAD);
|
||||
#endif
|
||||
#ifdef RTLD_GLOBAL
|
||||
INSINT(RTLD_GLOBAL);
|
||||
#endif
|
||||
#ifdef RTLD_LOCAL
|
||||
INSINT(RTLD_LOCAL);
|
||||
#endif
|
||||
#ifdef RTLD_PARENT
|
||||
INSINT(RTLD_PARENT);
|
||||
#endif
|
||||
#ifdef RTLD_GROUP
|
||||
INSINT(RTLD_GROUP);
|
||||
#endif
|
||||
#ifdef RTLD_WORLD
|
||||
INSINT(RTLD_WORLD);
|
||||
#endif
|
||||
#ifdef RTLD_NODELETE
|
||||
INSINT(RTLD_NODELETE);
|
||||
#endif
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue