add hg and python

1 files changed, 734 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Modules/selectmodule.c b/sys/src/cmd/python/Modules/selectmodule.c
new file mode 100644
index 000000000..9eaae8488
--- /dev/null
+++ b/sys/src/cmd/python/Modules/selectmodule.c
@@ -0,0 +1,734 @@
+/* select - Module containing unix select(2) call.
+   Under Unix, the file descriptors are small integers.
+   Under Win32, select only exists for sockets, and sockets may
+   have any value except INVALID_SOCKET.
+   Under BeOS, we suffer the same dichotomy as Win32; sockets can be anything
+   >= 0.
+*/
+
+#include "Python.h"
+
+#ifdef __APPLE__
+    /* Perform runtime testing for a broken poll on OSX to make it easier
+     * to use the same binary on multiple releases of the OS.
+     */
+#undef HAVE_BROKEN_POLL
+#endif
+
+/* Windows #defines FD_SETSIZE to 64 if FD_SETSIZE isn't already defined.
+   64 is too small (too many people have bumped into that limit).
+   Here we boost it.
+   Users who want even more than the boosted limit should #define
+   FD_SETSIZE higher before this; e.g., via compiler /D switch.
+*/
+#if defined(MS_WINDOWS) && !defined(FD_SETSIZE)
+#define FD_SETSIZE 512
+#endif 
+
+#if defined(HAVE_POLL_H)
+#include <poll.h>
+#elif defined(HAVE_SYS_POLL_H)
+#include <sys/poll.h>
+#endif
+
+#ifdef __sgi
+/* This is missing from unistd.h */
+extern void bzero(void *, int);
+#endif
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+
+#if defined(PYOS_OS2) && !defined(PYCC_GCC)
+#include <sys/time.h>
+#include <utils.h>
+#endif
+
+#ifdef MS_WINDOWS
+#  include <winsock.h>
+#else
+#  define SOCKET int
+#  ifdef __BEOS__
+#    include <net/socket.h>
+#  elif defined(__VMS)
+#    include <socket.h>
+#  endif
+#endif
+
+
+static PyObject *SelectError;
+
+/* list of Python objects and their file descriptor */
+typedef struct {
+	PyObject *obj;			     /* owned reference */
+	SOCKET fd;
+	int sentinel;			     /* -1 == sentinel */
+} pylist;
+
+static void
+reap_obj(pylist fd2obj[FD_SETSIZE + 1])
+{
+	int i;
+	for (i = 0; i < FD_SETSIZE + 1 && fd2obj[i].sentinel >= 0; i++) {
+		Py_XDECREF(fd2obj[i].obj);
+		fd2obj[i].obj = NULL;
+	}
+	fd2obj[0].sentinel = -1;
+}
+
+
+/* returns -1 and sets the Python exception if an error occurred, otherwise
+   returns a number >= 0
+*/
+static int
+seq2set(PyObject *seq, fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
+{
+	int i;
+	int max = -1;
+	int index = 0;
+        int len = -1;
+        PyObject* fast_seq = NULL;
+	PyObject* o = NULL;
+
+	fd2obj[0].obj = (PyObject*)0;	     /* set list to zero size */
+	FD_ZERO(set);
+
+        fast_seq=PySequence_Fast(seq, "arguments 1-3 must be sequences");
+        if (!fast_seq)
+            return -1;
+
+        len = PySequence_Fast_GET_SIZE(fast_seq);
+
+	for (i = 0; i < len; i++)  {
+		SOCKET v;
+
+		/* any intervening fileno() calls could decr this refcnt */
+		if (!(o = PySequence_Fast_GET_ITEM(fast_seq, i)))
+                    return -1;
+
+		Py_INCREF(o);
+		v = PyObject_AsFileDescriptor( o );
+		if (v == -1) goto finally;
+
+#if defined(_MSC_VER)
+		max = 0;		     /* not used for Win32 */
+#else  /* !_MSC_VER */
+		if (v < 0 || v >= FD_SETSIZE) {
+			PyErr_SetString(PyExc_ValueError,
+				    "filedescriptor out of range in select()");
+			goto finally;
+		}
+		if (v > max)
+			max = v;
+#endif /* _MSC_VER */
+		FD_SET(v, set);
+
+		/* add object and its file descriptor to the list */
+		if (index >= FD_SETSIZE) {
+			PyErr_SetString(PyExc_ValueError,
+				      "too many file descriptors in select()");
+			goto finally;
+		}
+		fd2obj[index].obj = o;
+		fd2obj[index].fd = v;
+		fd2obj[index].sentinel = 0;
+		fd2obj[++index].sentinel = -1;
+	}
+        Py_DECREF(fast_seq);
+	return max+1;
+
+  finally:
+	Py_XDECREF(o);
+        Py_DECREF(fast_seq);
+	return -1;
+}
+
+/* returns NULL and sets the Python exception if an error occurred */
+static PyObject *
+set2list(fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
+{
+	int i, j, count=0;
+	PyObject *list, *o;
+	SOCKET fd;
+
+	for (j = 0; fd2obj[j].sentinel >= 0; j++) {
+		if (FD_ISSET(fd2obj[j].fd, set))
+			count++;
+	}
+	list = PyList_New(count);
+	if (!list)
+		return NULL;
+
+	i = 0;
+	for (j = 0; fd2obj[j].sentinel >= 0; j++) {
+		fd = fd2obj[j].fd;
+		if (FD_ISSET(fd, set)) {
+#ifndef _MSC_VER
+			if (fd > FD_SETSIZE) {
+				PyErr_SetString(PyExc_SystemError,
+			   "filedescriptor out of range returned in select()");
+				goto finally;
+			}
+#endif
+			o = fd2obj[j].obj;
+			fd2obj[j].obj = NULL;
+			/* transfer ownership */
+			if (PyList_SetItem(list, i, o) < 0)
+				goto finally;
+
+			i++;
+		}
+	}
+	return list;
+  finally:
+	Py_DECREF(list);
+	return NULL;
+}
+
+#undef SELECT_USES_HEAP
+#if FD_SETSIZE > 1024
+#define SELECT_USES_HEAP
+#endif /* FD_SETSIZE > 1024 */
+
+static PyObject *
+select_select(PyObject *self, PyObject *args)
+{
+#ifdef SELECT_USES_HEAP
+	pylist *rfd2obj, *wfd2obj, *efd2obj;
+#else  /* !SELECT_USES_HEAP */
+	/* XXX: All this should probably be implemented as follows:
+	 * - find the highest descriptor we're interested in
+	 * - add one
+	 * - that's the size
+	 * See: Stevens, APitUE, $12.5.1
+	 */
+	pylist rfd2obj[FD_SETSIZE + 1];
+	pylist wfd2obj[FD_SETSIZE + 1];
+	pylist efd2obj[FD_SETSIZE + 1];
+#endif /* SELECT_USES_HEAP */
+	PyObject *ifdlist, *ofdlist, *efdlist;
+	PyObject *ret = NULL;
+	PyObject *tout = Py_None;
+	fd_set ifdset, ofdset, efdset;
+	double timeout;
+	struct timeval tv, *tvp;
+	long seconds;
+	int imax, omax, emax, max;
+	int n;
+
+	/* convert arguments */
+	if (!PyArg_UnpackTuple(args, "select", 3, 4,
+			      &ifdlist, &ofdlist, &efdlist, &tout))
+		return NULL;
+
+	if (tout == Py_None)
+		tvp = (struct timeval *)0;
+	else if (!PyNumber_Check(tout)) {
+		PyErr_SetString(PyExc_TypeError,
+				"timeout must be a float or None");
+		return NULL;
+	}
+	else {
+		timeout = PyFloat_AsDouble(tout);
+		if (timeout == -1 && PyErr_Occurred())
+			return NULL;
+		if (timeout > (double)LONG_MAX) {
+			PyErr_SetString(PyExc_OverflowError,
+					"timeout period too long");
+			return NULL;
+		}
+		seconds = (long)timeout;
+		timeout = timeout - (double)seconds;
+		tv.tv_sec = seconds;
+		tv.tv_usec = (long)(timeout*1000000.0);
+		tvp = &tv;
+	}
+
+
+#ifdef SELECT_USES_HEAP
+	/* Allocate memory for the lists */
+	rfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
+	wfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
+	efd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
+	if (rfd2obj == NULL || wfd2obj == NULL || efd2obj == NULL) {
+		if (rfd2obj) PyMem_DEL(rfd2obj);
+		if (wfd2obj) PyMem_DEL(wfd2obj);
+		if (efd2obj) PyMem_DEL(efd2obj);
+		return PyErr_NoMemory();
+	}
+#endif /* SELECT_USES_HEAP */
+	/* Convert sequences to fd_sets, and get maximum fd number
+	 * propagates the Python exception set in seq2set()
+	 */
+	rfd2obj[0].sentinel = -1;
+	wfd2obj[0].sentinel = -1;
+	efd2obj[0].sentinel = -1;
+	if ((imax=seq2set(ifdlist, &ifdset, rfd2obj)) < 0) 
+		goto finally;
+	if ((omax=seq2set(ofdlist, &ofdset, wfd2obj)) < 0) 
+		goto finally;
+	if ((emax=seq2set(efdlist, &efdset, efd2obj)) < 0) 
+		goto finally;
+	max = imax;
+	if (omax > max) max = omax;
+	if (emax > max) max = emax;
+
+	Py_BEGIN_ALLOW_THREADS
+	n = select(max, &ifdset, &ofdset, &efdset, tvp);
+	Py_END_ALLOW_THREADS
+
+#ifdef MS_WINDOWS
+	if (n == SOCKET_ERROR) {
+		PyErr_SetExcFromWindowsErr(SelectError, WSAGetLastError());
+	}
+#else
+	if (n < 0) {
+		PyErr_SetFromErrno(SelectError);
+	}
+#endif
+	else if (n == 0) {
+                /* optimization */
+		ifdlist = PyList_New(0);
+		if (ifdlist) {
+			ret = PyTuple_Pack(3, ifdlist, ifdlist, ifdlist);
+			Py_DECREF(ifdlist);
+		}
+	}
+	else {
+		/* any of these three calls can raise an exception.  it's more
+		   convenient to test for this after all three calls... but
+		   is that acceptable?
+		*/
+		ifdlist = set2list(&ifdset, rfd2obj);
+		ofdlist = set2list(&ofdset, wfd2obj);
+		efdlist = set2list(&efdset, efd2obj);
+		if (PyErr_Occurred())
+			ret = NULL;
+		else
+			ret = PyTuple_Pack(3, ifdlist, ofdlist, efdlist);
+
+		Py_DECREF(ifdlist);
+		Py_DECREF(ofdlist);
+		Py_DECREF(efdlist);
+	}
+	
+  finally:
+	reap_obj(rfd2obj);
+	reap_obj(wfd2obj);
+	reap_obj(efd2obj);
+#ifdef SELECT_USES_HEAP
+	PyMem_DEL(rfd2obj);
+	PyMem_DEL(wfd2obj);
+	PyMem_DEL(efd2obj);
+#endif /* SELECT_USES_HEAP */
+	return ret;
+}
+
+#if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
+/* 
+ * poll() support
+ */
+
+typedef struct {
+	PyObject_HEAD
+	PyObject *dict;
+	int ufd_uptodate; 
+	int ufd_len;
+        struct pollfd *ufds;
+} pollObject;
+
+static PyTypeObject poll_Type;
+
+/* Update the malloc'ed array of pollfds to match the dictionary 
+   contained within a pollObject.  Return 1 on success, 0 on an error.
+*/
+
+static int
+update_ufd_array(pollObject *self)
+{
+	Py_ssize_t i, pos;
+	PyObject *key, *value;
+
+	self->ufd_len = PyDict_Size(self->dict);
+	PyMem_Resize(self->ufds, struct pollfd, self->ufd_len);
+	if (self->ufds == NULL) {
+		PyErr_NoMemory();
+		return 0;
+	}
+
+	i = pos = 0;
+	while (PyDict_Next(self->dict, &pos, &key, &value)) {
+		self->ufds[i].fd = PyInt_AsLong(key);
+		self->ufds[i].events = (short)PyInt_AsLong(value);
+		i++;
+	}
+	self->ufd_uptodate = 1;
+	return 1;
+}
+
+PyDoc_STRVAR(poll_register_doc,
+"register(fd [, eventmask] ) -> None\n\n\
+Register a file descriptor with the polling object.\n\
+fd -- either an integer, or an object with a fileno() method returning an\n\
+      int.\n\
+events -- an optional bitmask describing the type of events to check for");
+
+static PyObject *
+poll_register(pollObject *self, PyObject *args) 
+{
+	PyObject *o, *key, *value;
+	int fd, events = POLLIN | POLLPRI | POLLOUT;
+	int err;
+
+	if (!PyArg_ParseTuple(args, "O|i:register", &o, &events)) {
+		return NULL;
+	}
+  
+	fd = PyObject_AsFileDescriptor(o);
+	if (fd == -1) return NULL;
+
+	/* Add entry to the internal dictionary: the key is the 
+	   file descriptor, and the value is the event mask. */
+	key = PyInt_FromLong(fd);
+	if (key == NULL)
+		return NULL;
+	value = PyInt_FromLong(events);
+	if (value == NULL) {
+		Py_DECREF(key);
+		return NULL;
+	}
+	err = PyDict_SetItem(self->dict, key, value);
+	Py_DECREF(key);
+	Py_DECREF(value);
+	if (err < 0)
+		return NULL;
+
+	self->ufd_uptodate = 0;
+		       
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+
+PyDoc_STRVAR(poll_unregister_doc,
+"unregister(fd) -> None\n\n\
+Remove a file descriptor being tracked by the polling object.");
+
+static PyObject *
+poll_unregister(pollObject *self, PyObject *o) 
+{
+	PyObject *key;
+	int fd;
+
+	fd = PyObject_AsFileDescriptor( o );
+	if (fd == -1) 
+		return NULL;
+
+	/* Check whether the fd is already in the array */
+	key = PyInt_FromLong(fd);
+	if (key == NULL) 
+		return NULL;
+
+	if (PyDict_DelItem(self->dict, key) == -1) {
+		Py_DECREF(key);
+		/* This will simply raise the KeyError set by PyDict_DelItem
+		   if the file descriptor isn't registered. */
+		return NULL;
+	}
+
+	Py_DECREF(key);
+	self->ufd_uptodate = 0;
+
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+
+PyDoc_STRVAR(poll_poll_doc,
+"poll( [timeout] ) -> list of (fd, event) 2-tuples\n\n\
+Polls the set of registered file descriptors, returning a list containing \n\
+any descriptors that have events or errors to report.");
+
+static PyObject *
+poll_poll(pollObject *self, PyObject *args) 
+{
+	PyObject *result_list = NULL, *tout = NULL;
+	int timeout = 0, poll_result, i, j;
+	PyObject *value = NULL, *num = NULL;
+
+	if (!PyArg_UnpackTuple(args, "poll", 0, 1, &tout)) {
+		return NULL;
+	}
+
+	/* Check values for timeout */
+	if (tout == NULL || tout == Py_None)
+		timeout = -1;
+	else if (!PyNumber_Check(tout)) {
+		PyErr_SetString(PyExc_TypeError,
+				"timeout must be an integer or None");
+		return NULL;
+	}
+	else {
+		tout = PyNumber_Int(tout);
+		if (!tout)
+			return NULL;
+		timeout = PyInt_AsLong(tout);
+		Py_DECREF(tout);
+		if (timeout == -1 && PyErr_Occurred())
+			return NULL;
+	}
+
+	/* Ensure the ufd array is up to date */
+	if (!self->ufd_uptodate) 
+		if (update_ufd_array(self) == 0)
+			return NULL;
+
+	/* call poll() */
+	Py_BEGIN_ALLOW_THREADS;
+	poll_result = poll(self->ufds, self->ufd_len, timeout);
+	Py_END_ALLOW_THREADS;
+ 
+	if (poll_result < 0) {
+		PyErr_SetFromErrno(SelectError);
+		return NULL;
+	} 
+       
+	/* build the result list */
+  
+	result_list = PyList_New(poll_result);
+	if (!result_list) 
+		return NULL;
+	else {
+		for (i = 0, j = 0; j < poll_result; j++) {
+ 			/* skip to the next fired descriptor */
+ 			while (!self->ufds[i].revents) {
+ 				i++;
+ 			}
+			/* if we hit a NULL return, set value to NULL
+			   and break out of loop; code at end will
+			   clean up result_list */
+			value = PyTuple_New(2);
+			if (value == NULL)
+				goto error;
+			num = PyInt_FromLong(self->ufds[i].fd);
+			if (num == NULL) {
+				Py_DECREF(value);
+				goto error;
+			}
+			PyTuple_SET_ITEM(value, 0, num);
+
+			/* The &0xffff is a workaround for AIX.  'revents'
+			   is a 16-bit short, and IBM assigned POLLNVAL
+			   to be 0x8000, so the conversion to int results
+			   in a negative number. See SF bug #923315. */
+			num = PyInt_FromLong(self->ufds[i].revents & 0xffff);
+			if (num == NULL) {
+				Py_DECREF(value);
+				goto error;
+			}
+			PyTuple_SET_ITEM(value, 1, num);
+ 			if ((PyList_SetItem(result_list, j, value)) == -1) {
+				Py_DECREF(value);
+				goto error;
+ 			}
+ 			i++;
+ 		}
+ 	}
+ 	return result_list;
+
+  error:
+	Py_DECREF(result_list);
+	return NULL;
+}
+
+static PyMethodDef poll_methods[] = {
+	{"register",	(PyCFunction)poll_register,	
+	 METH_VARARGS,  poll_register_doc},
+	{"unregister",	(PyCFunction)poll_unregister,	
+	 METH_O,        poll_unregister_doc},
+	{"poll",	(PyCFunction)poll_poll,	
+	 METH_VARARGS,  poll_poll_doc},
+	{NULL,		NULL}		/* sentinel */
+};
+
+static pollObject *
+newPollObject(void)
+{
+        pollObject *self;
+	self = PyObject_New(pollObject, &poll_Type);
+	if (self == NULL)
+		return NULL;
+	/* ufd_uptodate is a Boolean, denoting whether the 
+	   array pointed to by ufds matches the contents of the dictionary. */
+	self->ufd_uptodate = 0;
+	self->ufds = NULL;
+	self->dict = PyDict_New();
+	if (self->dict == NULL) {
+		Py_DECREF(self);
+		return NULL;
+	}
+	return self;
+}
+
+static void
+poll_dealloc(pollObject *self)
+{
+	if (self->ufds != NULL)
+		PyMem_DEL(self->ufds);
+	Py_XDECREF(self->dict);
+  	PyObject_Del(self);
+}
+
+static PyObject *
+poll_getattr(pollObject *self, char *name)
+{
+	return Py_FindMethod(poll_methods, (PyObject *)self, name);
+}
+
+static PyTypeObject poll_Type = {
+	/* The ob_type field must be initialized in the module init function
+	 * to be portable to Windows without using C++. */
+	PyObject_HEAD_INIT(NULL)
+	0,			/*ob_size*/
+	"select.poll",		/*tp_name*/
+	sizeof(pollObject),	/*tp_basicsize*/
+	0,			/*tp_itemsize*/
+	/* methods */
+	(destructor)poll_dealloc, /*tp_dealloc*/
+	0,			/*tp_print*/
+	(getattrfunc)poll_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*/
+};
+
+PyDoc_STRVAR(poll_doc,
+"Returns a polling object, which supports registering and\n\
+unregistering file descriptors, and then polling them for I/O events.");
+
+static PyObject *
+select_poll(PyObject *self, PyObject *unused)
+{
+	return (PyObject *)newPollObject();
+}
+
+#ifdef __APPLE__
+/* 
+ * On some systems poll() sets errno on invalid file descriptors. We test
+ * for this at runtime because this bug may be fixed or introduced between
+ * OS releases.
+ */
+static int select_have_broken_poll(void)
+{
+	int poll_test;
+	int filedes[2];
+
+	struct pollfd poll_struct = { 0, POLLIN|POLLPRI|POLLOUT, 0 };
+
+	/* Create a file descriptor to make invalid */
+	if (pipe(filedes) < 0) {
+		return 1;
+	}
+	poll_struct.fd = filedes[0];
+	close(filedes[0]);
+	close(filedes[1]);
+	poll_test = poll(&poll_struct, 1, 0);
+	if (poll_test < 0) {
+		return 1;
+	} else if (poll_test == 0 && poll_struct.revents != POLLNVAL) {
+		return 1;
+	}
+	return 0;
+}
+#endif /* __APPLE__ */
+
+#endif /* HAVE_POLL */
+
+PyDoc_STRVAR(select_doc,
+"select(rlist, wlist, xlist[, timeout]) -> (rlist, wlist, xlist)\n\
+\n\
+Wait until one or more file descriptors are ready for some kind of I/O.\n\
+The first three arguments are sequences of file descriptors to be waited for:\n\
+rlist -- wait until ready for reading\n\
+wlist -- wait until ready for writing\n\
+xlist -- wait for an ``exceptional condition''\n\
+If only one kind of condition is required, pass [] for the other lists.\n\
+A file descriptor is either a socket or file object, or a small integer\n\
+gotten from a fileno() method call on one of those.\n\
+\n\
+The optional 4th argument specifies a timeout in seconds; it may be\n\
+a floating point number to specify fractions of seconds.  If it is absent\n\
+or None, the call will never time out.\n\
+\n\
+The return value is a tuple of three lists corresponding to the first three\n\
+arguments; each contains the subset of the corresponding file descriptors\n\
+that are ready.\n\
+\n\
+*** IMPORTANT NOTICE ***\n\
+On Windows and OpenVMS, only sockets are supported; on Unix, all file descriptors.");
+
+static PyMethodDef select_methods[] = {
+    {"select",	select_select, METH_VARARGS, select_doc},
+#if defined(HAVE_POLL) 
+    {"poll",    select_poll,   METH_NOARGS, poll_doc},
+#endif /* HAVE_POLL */
+    {0,  	0},			     /* sentinel */
+};
+
+PyDoc_STRVAR(module_doc,
+"This module supports asynchronous I/O on multiple file descriptors.\n\
+\n\
+*** IMPORTANT NOTICE ***\n\
+On Windows and OpenVMS, only sockets are supported; on Unix, all file descriptors.");
+
+PyMODINIT_FUNC
+initselect(void)
+{
+	PyObject *m;
+	m = Py_InitModule3("select", select_methods, module_doc);
+	if (m == NULL)
+		return;
+
+	SelectError = PyErr_NewException("select.error", NULL, NULL);
+	Py_INCREF(SelectError);
+	PyModule_AddObject(m, "error", SelectError);
+#if defined(HAVE_POLL) 
+
+#ifdef __APPLE__
+	if (select_have_broken_poll()) {
+		if (PyObject_DelAttrString(m, "poll") == -1) {
+			PyErr_Clear();
+		}
+	} else {
+#else
+	{
+#endif
+		poll_Type.ob_type = &PyType_Type;
+		PyModule_AddIntConstant(m, "POLLIN", POLLIN);
+		PyModule_AddIntConstant(m, "POLLPRI", POLLPRI);
+		PyModule_AddIntConstant(m, "POLLOUT", POLLOUT);
+		PyModule_AddIntConstant(m, "POLLERR", POLLERR);
+		PyModule_AddIntConstant(m, "POLLHUP", POLLHUP);
+		PyModule_AddIntConstant(m, "POLLNVAL", POLLNVAL);
+
+#ifdef POLLRDNORM
+		PyModule_AddIntConstant(m, "POLLRDNORM", POLLRDNORM);
+#endif
+#ifdef POLLRDBAND
+		PyModule_AddIntConstant(m, "POLLRDBAND", POLLRDBAND);
+#endif
+#ifdef POLLWRNORM
+		PyModule_AddIntConstant(m, "POLLWRNORM", POLLWRNORM);
+#endif
+#ifdef POLLWRBAND
+		PyModule_AddIntConstant(m, "POLLWRBAND", POLLWRBAND);
+#endif
+#ifdef POLLMSG
+		PyModule_AddIntConstant(m, "POLLMSG", POLLMSG);
+#endif
+	}
+#endif /* HAVE_POLL */
+}