1
/* select - Module containing unix select(2) call.
2
Under Unix, the file descriptors are small integers.
3
Under Win32, select only exists for sockets, and sockets may
4
have any value except INVALID_SOCKET.
5
Under BeOS, we suffer the same dichotomy as Win32; sockets can be anything
10
#include <structmember.h>
13
/* Perform runtime testing for a broken poll on OSX to make it easier
14
* to use the same binary on multiple releases of the OS.
16
#undef HAVE_BROKEN_POLL
19
/* Windows #defines FD_SETSIZE to 64 if FD_SETSIZE isn't already defined.
20
64 is too small (too many people have bumped into that limit).
22
Users who want even more than the boosted limit should #define
23
FD_SETSIZE higher before this; e.g., via compiler /D switch.
25
#if defined(MS_WINDOWS) && !defined(FD_SETSIZE)
26
#define FD_SETSIZE 512
29
#if defined(HAVE_POLL_H)
31
#elif defined(HAVE_SYS_POLL_H)
36
/* This is missing from unistd.h */
37
extern void bzero(void *, int);
40
#ifdef HAVE_SYS_TYPES_H
41
#include <sys/types.h>
44
#if defined(PYOS_OS2) && !defined(PYCC_GCC)
54
# include <net/socket.h>
60
static PyObject *SelectError;
62
/* list of Python objects and their file descriptor */
64
PyObject *obj; /* owned reference */
66
int sentinel; /* -1 == sentinel */
70
reap_obj(pylist fd2obj[FD_SETSIZE + 1])
73
for (i = 0; i < FD_SETSIZE + 1 && fd2obj[i].sentinel >= 0; i++) {
74
Py_XDECREF(fd2obj[i].obj);
77
fd2obj[0].sentinel = -1;
81
/* returns -1 and sets the Python exception if an error occurred, otherwise
85
seq2set(PyObject *seq, fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
91
PyObject* fast_seq = NULL;
94
fd2obj[0].obj = (PyObject*)0; /* set list to zero size */
97
fast_seq=PySequence_Fast(seq, "arguments 1-3 must be sequences");
101
len = PySequence_Fast_GET_SIZE(fast_seq);
103
for (i = 0; i < len; i++) {
106
/* any intervening fileno() calls could decr this refcnt */
107
if (!(o = PySequence_Fast_GET_ITEM(fast_seq, i)))
111
v = PyObject_AsFileDescriptor( o );
112
if (v == -1) goto finally;
114
#if defined(_MSC_VER)
115
max = 0; /* not used for Win32 */
116
#else /* !_MSC_VER */
117
if (v < 0 || v >= FD_SETSIZE) {
118
PyErr_SetString(PyExc_ValueError,
119
"filedescriptor out of range in select()");
124
#endif /* _MSC_VER */
127
/* add object and its file descriptor to the list */
128
if (index >= FD_SETSIZE) {
129
PyErr_SetString(PyExc_ValueError,
130
"too many file descriptors in select()");
133
fd2obj[index].obj = o;
134
fd2obj[index].fd = v;
135
fd2obj[index].sentinel = 0;
136
fd2obj[++index].sentinel = -1;
147
/* returns NULL and sets the Python exception if an error occurred */
149
set2list(fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
155
for (j = 0; fd2obj[j].sentinel >= 0; j++) {
156
if (FD_ISSET(fd2obj[j].fd, set))
159
list = PyList_New(count);
164
for (j = 0; fd2obj[j].sentinel >= 0; j++) {
166
if (FD_ISSET(fd, set)) {
168
if (fd > FD_SETSIZE) {
169
PyErr_SetString(PyExc_SystemError,
170
"filedescriptor out of range returned in select()");
175
fd2obj[j].obj = NULL;
176
/* transfer ownership */
177
if (PyList_SetItem(list, i, o) < 0)
189
#undef SELECT_USES_HEAP
190
#if FD_SETSIZE > 1024
191
#define SELECT_USES_HEAP
192
#endif /* FD_SETSIZE > 1024 */
195
select_select(PyObject *self, PyObject *args)
197
#ifdef SELECT_USES_HEAP
198
pylist *rfd2obj, *wfd2obj, *efd2obj;
199
#else /* !SELECT_USES_HEAP */
200
/* XXX: All this should probably be implemented as follows:
201
* - find the highest descriptor we're interested in
204
* See: Stevens, APitUE, $12.5.1
206
pylist rfd2obj[FD_SETSIZE + 1];
207
pylist wfd2obj[FD_SETSIZE + 1];
208
pylist efd2obj[FD_SETSIZE + 1];
209
#endif /* SELECT_USES_HEAP */
210
PyObject *ifdlist, *ofdlist, *efdlist;
211
PyObject *ret = NULL;
212
PyObject *tout = Py_None;
213
fd_set ifdset, ofdset, efdset;
215
struct timeval tv, *tvp;
217
int imax, omax, emax, max;
220
/* convert arguments */
221
if (!PyArg_UnpackTuple(args, "select", 3, 4,
222
&ifdlist, &ofdlist, &efdlist, &tout))
226
tvp = (struct timeval *)0;
227
else if (!PyNumber_Check(tout)) {
228
PyErr_SetString(PyExc_TypeError,
229
"timeout must be a float or None");
233
timeout = PyFloat_AsDouble(tout);
234
if (timeout == -1 && PyErr_Occurred())
236
if (timeout > (double)LONG_MAX) {
237
PyErr_SetString(PyExc_OverflowError,
238
"timeout period too long");
241
seconds = (long)timeout;
242
timeout = timeout - (double)seconds;
244
tv.tv_usec = (long)(timeout * 1E6);
249
#ifdef SELECT_USES_HEAP
250
/* Allocate memory for the lists */
251
rfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
252
wfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
253
efd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
254
if (rfd2obj == NULL || wfd2obj == NULL || efd2obj == NULL) {
255
if (rfd2obj) PyMem_DEL(rfd2obj);
256
if (wfd2obj) PyMem_DEL(wfd2obj);
257
if (efd2obj) PyMem_DEL(efd2obj);
258
return PyErr_NoMemory();
260
#endif /* SELECT_USES_HEAP */
261
/* Convert sequences to fd_sets, and get maximum fd number
262
* propagates the Python exception set in seq2set()
264
rfd2obj[0].sentinel = -1;
265
wfd2obj[0].sentinel = -1;
266
efd2obj[0].sentinel = -1;
267
if ((imax=seq2set(ifdlist, &ifdset, rfd2obj)) < 0)
269
if ((omax=seq2set(ofdlist, &ofdset, wfd2obj)) < 0)
271
if ((emax=seq2set(efdlist, &efdset, efd2obj)) < 0)
274
if (omax > max) max = omax;
275
if (emax > max) max = emax;
277
Py_BEGIN_ALLOW_THREADS
278
n = select(max, &ifdset, &ofdset, &efdset, tvp);
282
if (n == SOCKET_ERROR) {
283
PyErr_SetExcFromWindowsErr(SelectError, WSAGetLastError());
287
PyErr_SetFromErrno(SelectError);
292
ifdlist = PyList_New(0);
294
ret = PyTuple_Pack(3, ifdlist, ifdlist, ifdlist);
299
/* any of these three calls can raise an exception. it's more
300
convenient to test for this after all three calls... but
303
ifdlist = set2list(&ifdset, rfd2obj);
304
ofdlist = set2list(&ofdset, wfd2obj);
305
efdlist = set2list(&efdset, efd2obj);
306
if (PyErr_Occurred())
309
ret = PyTuple_Pack(3, ifdlist, ofdlist, efdlist);
320
#ifdef SELECT_USES_HEAP
324
#endif /* SELECT_USES_HEAP */
328
#if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
341
static PyTypeObject poll_Type;
343
/* Update the malloc'ed array of pollfds to match the dictionary
344
contained within a pollObject. Return 1 on success, 0 on an error.
348
update_ufd_array(pollObject *self)
351
PyObject *key, *value;
352
struct pollfd *old_ufds = self->ufds;
354
self->ufd_len = PyDict_Size(self->dict);
355
PyMem_RESIZE(self->ufds, struct pollfd, self->ufd_len);
356
if (self->ufds == NULL) {
357
self->ufds = old_ufds;
363
while (PyDict_Next(self->dict, &pos, &key, &value)) {
364
self->ufds[i].fd = PyInt_AsLong(key);
365
self->ufds[i].events = (short)PyInt_AsLong(value);
368
self->ufd_uptodate = 1;
372
PyDoc_STRVAR(poll_register_doc,
373
"register(fd [, eventmask] ) -> None\n\n\
374
Register a file descriptor with the polling object.\n\
375
fd -- either an integer, or an object with a fileno() method returning an\n\
377
events -- an optional bitmask describing the type of events to check for");
380
poll_register(pollObject *self, PyObject *args)
382
PyObject *o, *key, *value;
383
int fd, events = POLLIN | POLLPRI | POLLOUT;
386
if (!PyArg_ParseTuple(args, "O|i:register", &o, &events)) {
390
fd = PyObject_AsFileDescriptor(o);
391
if (fd == -1) return NULL;
393
/* Add entry to the internal dictionary: the key is the
394
file descriptor, and the value is the event mask. */
395
key = PyInt_FromLong(fd);
398
value = PyInt_FromLong(events);
403
err = PyDict_SetItem(self->dict, key, value);
409
self->ufd_uptodate = 0;
415
PyDoc_STRVAR(poll_modify_doc,
416
"modify(fd, eventmask) -> None\n\n\
417
Modify an already registered file descriptor.\n\
418
fd -- either an integer, or an object with a fileno() method returning an\n\
420
events -- an optional bitmask describing the type of events to check for");
423
poll_modify(pollObject *self, PyObject *args)
425
PyObject *o, *key, *value;
429
if (!PyArg_ParseTuple(args, "Oi:modify", &o, &events)) {
433
fd = PyObject_AsFileDescriptor(o);
434
if (fd == -1) return NULL;
436
/* Modify registered fd */
437
key = PyInt_FromLong(fd);
440
if (PyDict_GetItem(self->dict, key) == NULL) {
442
PyErr_SetFromErrno(PyExc_IOError);
445
value = PyInt_FromLong(events);
450
err = PyDict_SetItem(self->dict, key, value);
456
self->ufd_uptodate = 0;
463
PyDoc_STRVAR(poll_unregister_doc,
464
"unregister(fd) -> None\n\n\
465
Remove a file descriptor being tracked by the polling object.");
468
poll_unregister(pollObject *self, PyObject *o)
473
fd = PyObject_AsFileDescriptor( o );
477
/* Check whether the fd is already in the array */
478
key = PyInt_FromLong(fd);
482
if (PyDict_DelItem(self->dict, key) == -1) {
484
/* This will simply raise the KeyError set by PyDict_DelItem
485
if the file descriptor isn't registered. */
490
self->ufd_uptodate = 0;
496
PyDoc_STRVAR(poll_poll_doc,
497
"poll( [timeout] ) -> list of (fd, event) 2-tuples\n\n\
498
Polls the set of registered file descriptors, returning a list containing \n\
499
any descriptors that have events or errors to report.");
502
poll_poll(pollObject *self, PyObject *args)
504
PyObject *result_list = NULL, *tout = NULL;
505
int timeout = 0, poll_result, i, j;
506
PyObject *value = NULL, *num = NULL;
508
if (!PyArg_UnpackTuple(args, "poll", 0, 1, &tout)) {
512
/* Check values for timeout */
513
if (tout == NULL || tout == Py_None)
515
else if (!PyNumber_Check(tout)) {
516
PyErr_SetString(PyExc_TypeError,
517
"timeout must be an integer or None");
521
tout = PyNumber_Int(tout);
524
timeout = PyInt_AsLong(tout);
526
if (timeout == -1 && PyErr_Occurred())
530
/* Ensure the ufd array is up to date */
531
if (!self->ufd_uptodate)
532
if (update_ufd_array(self) == 0)
536
Py_BEGIN_ALLOW_THREADS
537
poll_result = poll(self->ufds, self->ufd_len, timeout);
540
if (poll_result < 0) {
541
PyErr_SetFromErrno(SelectError);
545
/* build the result list */
547
result_list = PyList_New(poll_result);
551
for (i = 0, j = 0; j < poll_result; j++) {
552
/* skip to the next fired descriptor */
553
while (!self->ufds[i].revents) {
556
/* if we hit a NULL return, set value to NULL
557
and break out of loop; code at end will
558
clean up result_list */
559
value = PyTuple_New(2);
562
num = PyInt_FromLong(self->ufds[i].fd);
567
PyTuple_SET_ITEM(value, 0, num);
569
/* The &0xffff is a workaround for AIX. 'revents'
570
is a 16-bit short, and IBM assigned POLLNVAL
571
to be 0x8000, so the conversion to int results
572
in a negative number. See SF bug #923315. */
573
num = PyInt_FromLong(self->ufds[i].revents & 0xffff);
578
PyTuple_SET_ITEM(value, 1, num);
579
if ((PyList_SetItem(result_list, j, value)) == -1) {
589
Py_DECREF(result_list);
593
static PyMethodDef poll_methods[] = {
594
{"register", (PyCFunction)poll_register,
595
METH_VARARGS, poll_register_doc},
596
{"modify", (PyCFunction)poll_modify,
597
METH_VARARGS, poll_modify_doc},
598
{"unregister", (PyCFunction)poll_unregister,
599
METH_O, poll_unregister_doc},
600
{"poll", (PyCFunction)poll_poll,
601
METH_VARARGS, poll_poll_doc},
602
{NULL, NULL} /* sentinel */
609
self = PyObject_New(pollObject, &poll_Type);
612
/* ufd_uptodate is a Boolean, denoting whether the
613
array pointed to by ufds matches the contents of the dictionary. */
614
self->ufd_uptodate = 0;
616
self->dict = PyDict_New();
617
if (self->dict == NULL) {
625
poll_dealloc(pollObject *self)
627
if (self->ufds != NULL)
628
PyMem_DEL(self->ufds);
629
Py_XDECREF(self->dict);
634
poll_getattr(pollObject *self, char *name)
636
return Py_FindMethod(poll_methods, (PyObject *)self, name);
639
static PyTypeObject poll_Type = {
640
/* The ob_type field must be initialized in the module init function
641
* to be portable to Windows without using C++. */
642
PyVarObject_HEAD_INIT(NULL, 0)
643
"select.poll", /*tp_name*/
644
sizeof(pollObject), /*tp_basicsize*/
647
(destructor)poll_dealloc, /*tp_dealloc*/
649
(getattrfunc)poll_getattr, /*tp_getattr*/
654
0, /*tp_as_sequence*/
659
PyDoc_STRVAR(poll_doc,
660
"Returns a polling object, which supports registering and\n\
661
unregistering file descriptors, and then polling them for I/O events.");
664
select_poll(PyObject *self, PyObject *unused)
666
return (PyObject *)newPollObject();
671
* On some systems poll() sets errno on invalid file descriptors. We test
672
* for this at runtime because this bug may be fixed or introduced between
675
static int select_have_broken_poll(void)
680
struct pollfd poll_struct = { 0, POLLIN|POLLPRI|POLLOUT, 0 };
682
/* Create a file descriptor to make invalid */
683
if (pipe(filedes) < 0) {
686
poll_struct.fd = filedes[0];
689
poll_test = poll(&poll_struct, 1, 0);
692
} else if (poll_test == 0 && poll_struct.revents != POLLNVAL) {
697
#endif /* __APPLE__ */
699
#endif /* HAVE_POLL */
702
/* **************************************************************************
703
* epoll interface for Linux 2.6
705
* Written by Christian Heimes
706
* Inspired by Twisted's _epoll.pyx and select.poll()
709
#ifdef HAVE_SYS_EPOLL_H
710
#include <sys/epoll.h>
715
SOCKET epfd; /* epoll control file descriptor */
718
static PyTypeObject pyEpoll_Type;
719
#define pyepoll_CHECK(op) (PyObject_TypeCheck((op), &pyEpoll_Type))
722
pyepoll_err_closed(void)
724
PyErr_SetString(PyExc_ValueError, "I/O operation on closed epoll fd");
729
pyepoll_internal_close(pyEpoll_Object *self)
732
if (self->epfd >= 0) {
733
int epfd = self->epfd;
735
Py_BEGIN_ALLOW_THREADS
744
newPyEpoll_Object(PyTypeObject *type, int sizehint, SOCKET fd)
746
pyEpoll_Object *self;
748
if (sizehint == -1) {
749
sizehint = FD_SETSIZE-1;
751
else if (sizehint < 1) {
752
PyErr_Format(PyExc_ValueError,
753
"sizehint must be greater zero, got %d",
758
assert(type != NULL && type->tp_alloc != NULL);
759
self = (pyEpoll_Object *) type->tp_alloc(type, 0);
764
Py_BEGIN_ALLOW_THREADS
765
self->epfd = epoll_create(sizehint);
771
if (self->epfd < 0) {
773
PyErr_SetFromErrno(PyExc_IOError);
776
return (PyObject *)self;
781
pyepoll_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
784
static char *kwlist[] = {"sizehint", NULL};
786
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|i:epoll", kwlist,
790
return newPyEpoll_Object(type, sizehint, -1);
795
pyepoll_dealloc(pyEpoll_Object *self)
797
(void)pyepoll_internal_close(self);
798
Py_TYPE(self)->tp_free(self);
802
pyepoll_close(pyEpoll_Object *self)
804
errno = pyepoll_internal_close(self);
806
PyErr_SetFromErrno(PyExc_IOError);
812
PyDoc_STRVAR(pyepoll_close_doc,
815
Close the epoll control file descriptor. Further operations on the epoll\n\
816
object will raise an exception.");
819
pyepoll_get_closed(pyEpoll_Object *self)
828
pyepoll_fileno(pyEpoll_Object *self)
831
return pyepoll_err_closed();
832
return PyInt_FromLong(self->epfd);
835
PyDoc_STRVAR(pyepoll_fileno_doc,
838
Return the epoll control file descriptor.");
841
pyepoll_fromfd(PyObject *cls, PyObject *args)
845
if (!PyArg_ParseTuple(args, "i:fromfd", &fd))
848
return newPyEpoll_Object((PyTypeObject*)cls, -1, fd);
851
PyDoc_STRVAR(pyepoll_fromfd_doc,
852
"fromfd(fd) -> epoll\n\
854
Create an epoll object from a given control fd.");
857
pyepoll_internal_ctl(int epfd, int op, PyObject *pfd, unsigned int events)
859
struct epoll_event ev;
864
return pyepoll_err_closed();
866
fd = PyObject_AsFileDescriptor(pfd);
876
Py_BEGIN_ALLOW_THREADS
877
result = epoll_ctl(epfd, op, fd, &ev);
881
/* In kernel versions before 2.6.9, the EPOLL_CTL_DEL
882
* operation required a non-NULL pointer in event, even
883
* though this argument is ignored. */
884
Py_BEGIN_ALLOW_THREADS
885
result = epoll_ctl(epfd, op, fd, &ev);
886
if (errno == EBADF) {
887
/* fd already closed */
899
PyErr_SetFromErrno(PyExc_IOError);
906
pyepoll_register(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
909
unsigned int events = EPOLLIN | EPOLLOUT | EPOLLPRI;
910
static char *kwlist[] = {"fd", "eventmask", NULL};
912
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|I:register", kwlist,
917
return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_ADD, pfd, events);
920
PyDoc_STRVAR(pyepoll_register_doc,
921
"register(fd[, eventmask]) -> bool\n\
923
Registers a new fd or modifies an already registered fd. register() returns\n\
924
True if a new fd was registered or False if the event mask for fd was modified.\n\
925
fd is the target file descriptor of the operation.\n\
926
events is a bit set composed of the various EPOLL constants; the default\n\
927
is EPOLL_IN | EPOLL_OUT | EPOLL_PRI.\n\
929
The epoll interface supports all file descriptors that support poll.");
932
pyepoll_modify(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
936
static char *kwlist[] = {"fd", "eventmask", NULL};
938
if (!PyArg_ParseTupleAndKeywords(args, kwds, "OI:modify", kwlist,
943
return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_MOD, pfd, events);
946
PyDoc_STRVAR(pyepoll_modify_doc,
947
"modify(fd, eventmask) -> None\n\
949
fd is the target file descriptor of the operation\n\
950
events is a bit set composed of the various EPOLL constants");
953
pyepoll_unregister(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
956
static char *kwlist[] = {"fd", NULL};
958
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O:unregister", kwlist,
963
return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_DEL, pfd, 0);
966
PyDoc_STRVAR(pyepoll_unregister_doc,
967
"unregister(fd) -> None\n\
969
fd is the target file descriptor of the operation.");
972
pyepoll_poll(pyEpoll_Object *self, PyObject *args, PyObject *kwds)
974
double dtimeout = -1.;
978
PyObject *elist = NULL, *etuple = NULL;
979
struct epoll_event *evs = NULL;
980
static char *kwlist[] = {"timeout", "maxevents", NULL};
983
return pyepoll_err_closed();
985
if (!PyArg_ParseTupleAndKeywords(args, kwds, "|di:poll", kwlist,
986
&dtimeout, &maxevents)) {
993
else if (dtimeout * 1000.0 > INT_MAX) {
994
PyErr_SetString(PyExc_OverflowError,
995
"timeout is too large");
999
timeout = (int)(dtimeout * 1000.0);
1002
if (maxevents == -1) {
1003
maxevents = FD_SETSIZE-1;
1005
else if (maxevents < 1) {
1006
PyErr_Format(PyExc_ValueError,
1007
"maxevents must be greater than 0, got %d",
1012
evs = PyMem_New(struct epoll_event, maxevents);
1019
Py_BEGIN_ALLOW_THREADS
1020
nfds = epoll_wait(self->epfd, evs, maxevents, timeout);
1021
Py_END_ALLOW_THREADS
1023
PyErr_SetFromErrno(PyExc_IOError);
1027
elist = PyList_New(nfds);
1028
if (elist == NULL) {
1032
for (i = 0; i < nfds; i++) {
1033
etuple = Py_BuildValue("iI", evs[i].data.fd, evs[i].events);
1034
if (etuple == NULL) {
1038
PyList_SET_ITEM(elist, i, etuple);
1046
PyDoc_STRVAR(pyepoll_poll_doc,
1047
"poll([timeout=-1[, maxevents=-1]]) -> [(fd, events), (...)]\n\
1049
Wait for events on the epoll file descriptor for a maximum time of timeout\n\
1050
in seconds (as float). -1 makes poll wait indefinitely.\n\
1051
Up to maxevents are returned to the caller.");
1053
static PyMethodDef pyepoll_methods[] = {
1054
{"fromfd", (PyCFunction)pyepoll_fromfd,
1055
METH_VARARGS | METH_CLASS, pyepoll_fromfd_doc},
1056
{"close", (PyCFunction)pyepoll_close, METH_NOARGS,
1058
{"fileno", (PyCFunction)pyepoll_fileno, METH_NOARGS,
1059
pyepoll_fileno_doc},
1060
{"modify", (PyCFunction)pyepoll_modify,
1061
METH_VARARGS | METH_KEYWORDS, pyepoll_modify_doc},
1062
{"register", (PyCFunction)pyepoll_register,
1063
METH_VARARGS | METH_KEYWORDS, pyepoll_register_doc},
1064
{"unregister", (PyCFunction)pyepoll_unregister,
1065
METH_VARARGS | METH_KEYWORDS, pyepoll_unregister_doc},
1066
{"poll", (PyCFunction)pyepoll_poll,
1067
METH_VARARGS | METH_KEYWORDS, pyepoll_poll_doc},
1071
static PyGetSetDef pyepoll_getsetlist[] = {
1072
{"closed", (getter)pyepoll_get_closed, NULL,
1073
"True if the epoll handler is closed"},
1077
PyDoc_STRVAR(pyepoll_doc,
1078
"select.epoll([sizehint=-1])\n\
1080
Returns an epolling object\n\
1082
sizehint must be a positive integer or -1 for the default size. The\n\
1083
sizehint is used to optimize internal data structures. It doesn't limit\n\
1084
the maximum number of monitored events.");
1086
static PyTypeObject pyEpoll_Type = {
1087
PyVarObject_HEAD_INIT(NULL, 0)
1088
"select.epoll", /* tp_name */
1089
sizeof(pyEpoll_Object), /* tp_basicsize */
1090
0, /* tp_itemsize */
1091
(destructor)pyepoll_dealloc, /* tp_dealloc */
1097
0, /* tp_as_number */
1098
0, /* tp_as_sequence */
1099
0, /* tp_as_mapping */
1103
PyObject_GenericGetAttr, /* tp_getattro */
1104
0, /* tp_setattro */
1105
0, /* tp_as_buffer */
1106
Py_TPFLAGS_DEFAULT, /* tp_flags */
1107
pyepoll_doc, /* tp_doc */
1108
0, /* tp_traverse */
1110
0, /* tp_richcompare */
1111
0, /* tp_weaklistoffset */
1113
0, /* tp_iternext */
1114
pyepoll_methods, /* tp_methods */
1116
pyepoll_getsetlist, /* tp_getset */
1119
0, /* tp_descr_get */
1120
0, /* tp_descr_set */
1121
0, /* tp_dictoffset */
1124
pyepoll_new, /* tp_new */
1128
#endif /* HAVE_EPOLL */
1131
/* **************************************************************************
1132
* kqueue interface for BSD
1134
* Copyright (c) 2000 Doug White, 2006 James Knight, 2007 Christian Heimes
1135
* All rights reserved.
1137
* Redistribution and use in source and binary forms, with or without
1138
* modification, are permitted provided that the following conditions
1140
* 1. Redistributions of source code must retain the above copyright
1141
* notice, this list of conditions and the following disclaimer.
1142
* 2. Redistributions in binary form must reproduce the above copyright
1143
* notice, this list of conditions and the following disclaimer in the
1144
* documentation and/or other materials provided with the distribution.
1146
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1147
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1148
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1149
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1150
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1151
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1152
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1153
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1154
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1155
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1159
#ifdef HAVE_SYS_EVENT_H
1160
#include <sys/event.h>
1163
PyDoc_STRVAR(kqueue_event_doc,
1164
"kevent(ident, filter=KQ_FILTER_READ, flags=KQ_ADD, fflags=0, data=0, udata=0)\n\
1166
This object is the equivalent of the struct kevent for the C API.\n\
1168
See the kqueue manpage for more detailed information about the meaning\n\
1169
of the arguments.\n\
1171
One minor note: while you might hope that udata could store a\n\
1172
reference to a python object, it cannot, because it is impossible to\n\
1173
keep a proper reference count of the object once it's passed into the\n\
1174
kernel. Therefore, I have restricted it to only storing an integer. I\n\
1175
recommend ignoring it and simply using the 'ident' field to key off\n\
1176
of. You could also set up a dictionary on the python side to store a\n\
1177
udata->object mapping.");
1182
} kqueue_event_Object;
1184
static PyTypeObject kqueue_event_Type;
1186
#define kqueue_event_Check(op) (PyObject_TypeCheck((op), &kqueue_event_Type))
1190
SOCKET kqfd; /* kqueue control fd */
1191
} kqueue_queue_Object;
1193
static PyTypeObject kqueue_queue_Type;
1195
#define kqueue_queue_Check(op) (PyObject_TypeCheck((op), &kqueue_queue_Type))
1197
/* Unfortunately, we can't store python objects in udata, because
1198
* kevents in the kernel can be removed without warning, which would
1199
* forever lose the refcount on the object stored with it.
1202
#define KQ_OFF(x) offsetof(kqueue_event_Object, x)
1203
static struct PyMemberDef kqueue_event_members[] = {
1204
{"ident", T_UINT, KQ_OFF(e.ident)},
1205
{"filter", T_SHORT, KQ_OFF(e.filter)},
1206
{"flags", T_USHORT, KQ_OFF(e.flags)},
1207
{"fflags", T_UINT, KQ_OFF(e.fflags)},
1208
{"data", T_INT, KQ_OFF(e.data)},
1209
{"udata", T_INT, KQ_OFF(e.udata)},
1210
{NULL} /* Sentinel */
1215
kqueue_event_repr(kqueue_event_Object *s)
1220
"<select.kevent ident=%lu filter=%d flags=0x%x fflags=0x%x "
1221
"data=0x%lx udata=%p>",
1222
(unsigned long)(s->e.ident), s->e.filter, s->e.flags,
1223
s->e.fflags, (long)(s->e.data), s->e.udata);
1224
return PyString_FromString(buf);
1228
kqueue_event_init(kqueue_event_Object *self, PyObject *args, PyObject *kwds)
1231
static char *kwlist[] = {"ident", "filter", "flags", "fflags",
1232
"data", "udata", NULL};
1234
EV_SET(&(self->e), 0, EVFILT_READ, EV_ADD, 0, 0, 0); /* defaults */
1236
if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|hhiii:kevent", kwlist,
1237
&pfd, &(self->e.filter), &(self->e.flags),
1238
&(self->e.fflags), &(self->e.data), &(self->e.udata))) {
1242
self->e.ident = PyObject_AsFileDescriptor(pfd);
1243
if (self->e.ident == -1) {
1250
kqueue_event_richcompare(kqueue_event_Object *s, kqueue_event_Object *o,
1255
if (!kqueue_event_Check(o)) {
1256
if (op == Py_EQ || op == Py_NE) {
1257
PyObject *res = op == Py_EQ ? Py_False : Py_True;
1261
PyErr_Format(PyExc_TypeError,
1262
"can't compare %.200s to %.200s",
1263
Py_TYPE(s)->tp_name, Py_TYPE(o)->tp_name);
1266
if (((result = s->e.ident - o->e.ident) == 0) &&
1267
((result = s->e.filter - o->e.filter) == 0) &&
1268
((result = s->e.flags - o->e.flags) == 0) &&
1269
((result = s->e.fflags - o->e.fflags) == 0) &&
1270
((result = s->e.data - o->e.data) == 0) &&
1271
((result = s->e.udata - o->e.udata) == 0)
1278
result = (result == 0);
1281
result = (result != 0);
1284
result = (result <= 0);
1287
result = (result >= 0);
1290
result = (result < 0);
1293
result = (result > 0);
1296
return PyBool_FromLong(result);
1299
static PyTypeObject kqueue_event_Type = {
1300
PyVarObject_HEAD_INIT(NULL, 0)
1301
"select.kevent", /* tp_name */
1302
sizeof(kqueue_event_Object), /* tp_basicsize */
1303
0, /* tp_itemsize */
1309
(reprfunc)kqueue_event_repr, /* tp_repr */
1310
0, /* tp_as_number */
1311
0, /* tp_as_sequence */
1312
0, /* tp_as_mapping */
1316
0, /* tp_getattro */
1317
0, /* tp_setattro */
1318
0, /* tp_as_buffer */
1319
Py_TPFLAGS_DEFAULT, /* tp_flags */
1320
kqueue_event_doc, /* tp_doc */
1321
0, /* tp_traverse */
1323
(richcmpfunc)kqueue_event_richcompare, /* tp_richcompare */
1324
0, /* tp_weaklistoffset */
1326
0, /* tp_iternext */
1328
kqueue_event_members, /* tp_members */
1332
0, /* tp_descr_get */
1333
0, /* tp_descr_set */
1334
0, /* tp_dictoffset */
1335
(initproc)kqueue_event_init, /* tp_init */
1342
kqueue_queue_err_closed(void)
1344
PyErr_SetString(PyExc_ValueError, "I/O operation on closed kqueue fd");
1349
kqueue_queue_internal_close(kqueue_queue_Object *self)
1352
if (self->kqfd >= 0) {
1353
int kqfd = self->kqfd;
1355
Py_BEGIN_ALLOW_THREADS
1356
if (close(kqfd) < 0)
1358
Py_END_ALLOW_THREADS
1364
newKqueue_Object(PyTypeObject *type, SOCKET fd)
1366
kqueue_queue_Object *self;
1367
assert(type != NULL && type->tp_alloc != NULL);
1368
self = (kqueue_queue_Object *) type->tp_alloc(type, 0);
1374
Py_BEGIN_ALLOW_THREADS
1375
self->kqfd = kqueue();
1376
Py_END_ALLOW_THREADS
1381
if (self->kqfd < 0) {
1383
PyErr_SetFromErrno(PyExc_IOError);
1386
return (PyObject *)self;
1390
kqueue_queue_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
1393
if ((args != NULL && PyObject_Size(args)) ||
1394
(kwds != NULL && PyObject_Size(kwds))) {
1395
PyErr_SetString(PyExc_ValueError,
1396
"select.kqueue doesn't accept arguments");
1400
return newKqueue_Object(type, -1);
1404
kqueue_queue_dealloc(kqueue_queue_Object *self)
1406
kqueue_queue_internal_close(self);
1407
Py_TYPE(self)->tp_free(self);
1411
kqueue_queue_close(kqueue_queue_Object *self)
1413
errno = kqueue_queue_internal_close(self);
1415
PyErr_SetFromErrno(PyExc_IOError);
1421
PyDoc_STRVAR(kqueue_queue_close_doc,
1424
Close the kqueue control file descriptor. Further operations on the kqueue\n\
1425
object will raise an exception.");
1428
kqueue_queue_get_closed(kqueue_queue_Object *self)
1437
kqueue_queue_fileno(kqueue_queue_Object *self)
1440
return kqueue_queue_err_closed();
1441
return PyInt_FromLong(self->kqfd);
1444
PyDoc_STRVAR(kqueue_queue_fileno_doc,
1447
Return the kqueue control file descriptor.");
1450
kqueue_queue_fromfd(PyObject *cls, PyObject *args)
1454
if (!PyArg_ParseTuple(args, "i:fromfd", &fd))
1457
return newKqueue_Object((PyTypeObject*)cls, fd);
1460
PyDoc_STRVAR(kqueue_queue_fromfd_doc,
1461
"fromfd(fd) -> kqueue\n\
1463
Create a kqueue object from a given control fd.");
1466
kqueue_queue_control(kqueue_queue_Object *self, PyObject *args)
1472
PyObject *otimeout = NULL;
1473
PyObject *ch = NULL;
1474
PyObject *it = NULL, *ei = NULL;
1475
PyObject *result = NULL;
1476
struct kevent *evl = NULL;
1477
struct kevent *chl = NULL;
1478
struct timespec timeoutspec;
1479
struct timespec *ptimeoutspec;
1482
return kqueue_queue_err_closed();
1484
if (!PyArg_ParseTuple(args, "Oi|O:control", &ch, &nevents, &otimeout))
1488
PyErr_Format(PyExc_ValueError,
1489
"Length of eventlist must be 0 or positive, got %d",
1494
if (ch != NULL && ch != Py_None) {
1495
it = PyObject_GetIter(ch);
1497
PyErr_SetString(PyExc_TypeError,
1498
"changelist is not iterable");
1501
nchanges = PyObject_Size(ch);
1507
if (otimeout == Py_None || otimeout == NULL) {
1508
ptimeoutspec = NULL;
1510
else if (PyNumber_Check(otimeout)) {
1514
timeout = PyFloat_AsDouble(otimeout);
1515
if (timeout == -1 && PyErr_Occurred())
1517
if (timeout > (double)LONG_MAX) {
1518
PyErr_SetString(PyExc_OverflowError,
1519
"timeout period too long");
1523
PyErr_SetString(PyExc_ValueError,
1524
"timeout must be positive or None");
1528
seconds = (long)timeout;
1529
timeout = timeout - (double)seconds;
1530
timeoutspec.tv_sec = seconds;
1531
timeoutspec.tv_nsec = (long)(timeout * 1E9);
1532
ptimeoutspec = &timeoutspec;
1535
PyErr_Format(PyExc_TypeError,
1536
"timeout argument must be an number "
1537
"or None, got %.200s",
1538
Py_TYPE(otimeout)->tp_name);
1543
chl = PyMem_New(struct kevent, nchanges);
1548
while ((ei = PyIter_Next(it)) != NULL) {
1549
if (!kqueue_event_Check(ei)) {
1551
PyErr_SetString(PyExc_TypeError,
1552
"changelist must be an iterable of "
1553
"select.kevent objects");
1556
chl[i] = ((kqueue_event_Object *)ei)->e;
1565
evl = PyMem_New(struct kevent, nevents);
1572
Py_BEGIN_ALLOW_THREADS
1573
gotevents = kevent(self->kqfd, chl, nchanges,
1574
evl, nevents, ptimeoutspec);
1575
Py_END_ALLOW_THREADS
1577
if (gotevents == -1) {
1578
PyErr_SetFromErrno(PyExc_OSError);
1582
result = PyList_New(gotevents);
1583
if (result == NULL) {
1587
for (i=0; i < gotevents; i++) {
1588
kqueue_event_Object *ch;
1590
ch = PyObject_New(kqueue_event_Object, &kqueue_event_Type);
1595
PyList_SET_ITEM(result, i, (PyObject *)ch);
1609
PyDoc_STRVAR(kqueue_queue_control_doc,
1610
"control(changelist, max_events[, timeout=None]) -> eventlist\n\
1612
Calls the kernel kevent function.\n\
1613
- changelist must be a list of kevent objects describing the changes\n\
1614
to be made to the kernel's watch list or None.\n\
1615
- max_events lets you specify the maximum number of events that the\n\
1616
kernel will return.\n\
1617
- timeout is the maximum time to wait in seconds, or else None,\n\
1618
to wait forever. timeout accepts floats for smaller timeouts, too.");
1621
static PyMethodDef kqueue_queue_methods[] = {
1622
{"fromfd", (PyCFunction)kqueue_queue_fromfd,
1623
METH_VARARGS | METH_CLASS, kqueue_queue_fromfd_doc},
1624
{"close", (PyCFunction)kqueue_queue_close, METH_NOARGS,
1625
kqueue_queue_close_doc},
1626
{"fileno", (PyCFunction)kqueue_queue_fileno, METH_NOARGS,
1627
kqueue_queue_fileno_doc},
1628
{"control", (PyCFunction)kqueue_queue_control,
1629
METH_VARARGS , kqueue_queue_control_doc},
1633
static PyGetSetDef kqueue_queue_getsetlist[] = {
1634
{"closed", (getter)kqueue_queue_get_closed, NULL,
1635
"True if the kqueue handler is closed"},
1639
PyDoc_STRVAR(kqueue_queue_doc,
1640
"Kqueue syscall wrapper.\n\
1642
For example, to start watching a socket for input:\n\
1643
>>> kq = kqueue()\n\
1644
>>> sock = socket()\n\
1645
>>> sock.connect((host, port))\n\
1646
>>> kq.control([kevent(sock, KQ_FILTER_WRITE, KQ_EV_ADD)], 0)\n\
1648
To wait one second for it to become writeable:\n\
1649
>>> kq.control(None, 1, 1000)\n\
1651
To stop listening:\n\
1652
>>> kq.control([kevent(sock, KQ_FILTER_WRITE, KQ_EV_DELETE)], 0)");
1654
static PyTypeObject kqueue_queue_Type = {
1655
PyVarObject_HEAD_INIT(NULL, 0)
1656
"select.kqueue", /* tp_name */
1657
sizeof(kqueue_queue_Object), /* tp_basicsize */
1658
0, /* tp_itemsize */
1659
(destructor)kqueue_queue_dealloc, /* tp_dealloc */
1665
0, /* tp_as_number */
1666
0, /* tp_as_sequence */
1667
0, /* tp_as_mapping */
1671
0, /* tp_getattro */
1672
0, /* tp_setattro */
1673
0, /* tp_as_buffer */
1674
Py_TPFLAGS_DEFAULT, /* tp_flags */
1675
kqueue_queue_doc, /* tp_doc */
1676
0, /* tp_traverse */
1678
0, /* tp_richcompare */
1679
0, /* tp_weaklistoffset */
1681
0, /* tp_iternext */
1682
kqueue_queue_methods, /* tp_methods */
1684
kqueue_queue_getsetlist, /* tp_getset */
1687
0, /* tp_descr_get */
1688
0, /* tp_descr_set */
1689
0, /* tp_dictoffset */
1692
kqueue_queue_new, /* tp_new */
1696
#endif /* HAVE_KQUEUE */
1697
/* ************************************************************************ */
1699
PyDoc_STRVAR(select_doc,
1700
"select(rlist, wlist, xlist[, timeout]) -> (rlist, wlist, xlist)\n\
1702
Wait until one or more file descriptors are ready for some kind of I/O.\n\
1703
The first three arguments are sequences of file descriptors to be waited for:\n\
1704
rlist -- wait until ready for reading\n\
1705
wlist -- wait until ready for writing\n\
1706
xlist -- wait for an ``exceptional condition''\n\
1707
If only one kind of condition is required, pass [] for the other lists.\n\
1708
A file descriptor is either a socket or file object, or a small integer\n\
1709
gotten from a fileno() method call on one of those.\n\
1711
The optional 4th argument specifies a timeout in seconds; it may be\n\
1712
a floating point number to specify fractions of seconds. If it is absent\n\
1713
or None, the call will never time out.\n\
1715
The return value is a tuple of three lists corresponding to the first three\n\
1716
arguments; each contains the subset of the corresponding file descriptors\n\
1719
*** IMPORTANT NOTICE ***\n\
1720
On Windows and OpenVMS, only sockets are supported; on Unix, all file\n\
1721
descriptors can be used.");
1723
static PyMethodDef select_methods[] = {
1724
{"select", select_select, METH_VARARGS, select_doc},
1726
{"poll", select_poll, METH_NOARGS, poll_doc},
1727
#endif /* HAVE_POLL */
1728
{0, 0}, /* sentinel */
1731
PyDoc_STRVAR(module_doc,
1732
"This module supports asynchronous I/O on multiple file descriptors.\n\
1734
*** IMPORTANT NOTICE ***\n\
1735
On Windows and OpenVMS, only sockets are supported; on Unix, all file descriptors.");
1741
m = Py_InitModule3("select", select_methods, module_doc);
1745
SelectError = PyErr_NewException("select.error", NULL, NULL);
1746
Py_INCREF(SelectError);
1747
PyModule_AddObject(m, "error", SelectError);
1749
#if defined(HAVE_POLL)
1751
if (select_have_broken_poll()) {
1752
if (PyObject_DelAttrString(m, "poll") == -1) {
1759
Py_TYPE(&poll_Type) = &PyType_Type;
1760
PyModule_AddIntConstant(m, "POLLIN", POLLIN);
1761
PyModule_AddIntConstant(m, "POLLPRI", POLLPRI);
1762
PyModule_AddIntConstant(m, "POLLOUT", POLLOUT);
1763
PyModule_AddIntConstant(m, "POLLERR", POLLERR);
1764
PyModule_AddIntConstant(m, "POLLHUP", POLLHUP);
1765
PyModule_AddIntConstant(m, "POLLNVAL", POLLNVAL);
1768
PyModule_AddIntConstant(m, "POLLRDNORM", POLLRDNORM);
1771
PyModule_AddIntConstant(m, "POLLRDBAND", POLLRDBAND);
1774
PyModule_AddIntConstant(m, "POLLWRNORM", POLLWRNORM);
1777
PyModule_AddIntConstant(m, "POLLWRBAND", POLLWRBAND);
1780
PyModule_AddIntConstant(m, "POLLMSG", POLLMSG);
1783
#endif /* HAVE_POLL */
1786
Py_TYPE(&pyEpoll_Type) = &PyType_Type;
1787
if (PyType_Ready(&pyEpoll_Type) < 0)
1790
Py_INCREF(&pyEpoll_Type);
1791
PyModule_AddObject(m, "epoll", (PyObject *) &pyEpoll_Type);
1793
PyModule_AddIntConstant(m, "EPOLLIN", EPOLLIN);
1794
PyModule_AddIntConstant(m, "EPOLLOUT", EPOLLOUT);
1795
PyModule_AddIntConstant(m, "EPOLLPRI", EPOLLPRI);
1796
PyModule_AddIntConstant(m, "EPOLLERR", EPOLLERR);
1797
PyModule_AddIntConstant(m, "EPOLLHUP", EPOLLHUP);
1798
PyModule_AddIntConstant(m, "EPOLLET", EPOLLET);
1801
PyModule_AddIntConstant(m, "EPOLLONESHOT", EPOLLONESHOT);
1803
/* PyModule_AddIntConstant(m, "EPOLL_RDHUP", EPOLLRDHUP); */
1804
PyModule_AddIntConstant(m, "EPOLLRDNORM", EPOLLRDNORM);
1805
PyModule_AddIntConstant(m, "EPOLLRDBAND", EPOLLRDBAND);
1806
PyModule_AddIntConstant(m, "EPOLLWRNORM", EPOLLWRNORM);
1807
PyModule_AddIntConstant(m, "EPOLLWRBAND", EPOLLWRBAND);
1808
PyModule_AddIntConstant(m, "EPOLLMSG", EPOLLMSG);
1809
#endif /* HAVE_EPOLL */
1812
kqueue_event_Type.tp_new = PyType_GenericNew;
1813
Py_TYPE(&kqueue_event_Type) = &PyType_Type;
1814
if(PyType_Ready(&kqueue_event_Type) < 0)
1817
Py_INCREF(&kqueue_event_Type);
1818
PyModule_AddObject(m, "kevent", (PyObject *)&kqueue_event_Type);
1820
Py_TYPE(&kqueue_queue_Type) = &PyType_Type;
1821
if(PyType_Ready(&kqueue_queue_Type) < 0)
1823
Py_INCREF(&kqueue_queue_Type);
1824
PyModule_AddObject(m, "kqueue", (PyObject *)&kqueue_queue_Type);
1827
PyModule_AddIntConstant(m, "KQ_FILTER_READ", EVFILT_READ);
1828
PyModule_AddIntConstant(m, "KQ_FILTER_WRITE", EVFILT_WRITE);
1829
PyModule_AddIntConstant(m, "KQ_FILTER_AIO", EVFILT_AIO);
1830
PyModule_AddIntConstant(m, "KQ_FILTER_VNODE", EVFILT_VNODE);
1831
PyModule_AddIntConstant(m, "KQ_FILTER_PROC", EVFILT_PROC);
1832
#ifdef EVFILT_NETDEV
1833
PyModule_AddIntConstant(m, "KQ_FILTER_NETDEV", EVFILT_NETDEV);
1835
PyModule_AddIntConstant(m, "KQ_FILTER_SIGNAL", EVFILT_SIGNAL);
1836
PyModule_AddIntConstant(m, "KQ_FILTER_TIMER", EVFILT_TIMER);
1839
PyModule_AddIntConstant(m, "KQ_EV_ADD", EV_ADD);
1840
PyModule_AddIntConstant(m, "KQ_EV_DELETE", EV_DELETE);
1841
PyModule_AddIntConstant(m, "KQ_EV_ENABLE", EV_ENABLE);
1842
PyModule_AddIntConstant(m, "KQ_EV_DISABLE", EV_DISABLE);
1843
PyModule_AddIntConstant(m, "KQ_EV_ONESHOT", EV_ONESHOT);
1844
PyModule_AddIntConstant(m, "KQ_EV_CLEAR", EV_CLEAR);
1846
PyModule_AddIntConstant(m, "KQ_EV_SYSFLAGS", EV_SYSFLAGS);
1847
PyModule_AddIntConstant(m, "KQ_EV_FLAG1", EV_FLAG1);
1849
PyModule_AddIntConstant(m, "KQ_EV_EOF", EV_EOF);
1850
PyModule_AddIntConstant(m, "KQ_EV_ERROR", EV_ERROR);
1852
/* READ WRITE filter flag */
1853
PyModule_AddIntConstant(m, "KQ_NOTE_LOWAT", NOTE_LOWAT);
1855
/* VNODE filter flags */
1856
PyModule_AddIntConstant(m, "KQ_NOTE_DELETE", NOTE_DELETE);
1857
PyModule_AddIntConstant(m, "KQ_NOTE_WRITE", NOTE_WRITE);
1858
PyModule_AddIntConstant(m, "KQ_NOTE_EXTEND", NOTE_EXTEND);
1859
PyModule_AddIntConstant(m, "KQ_NOTE_ATTRIB", NOTE_ATTRIB);
1860
PyModule_AddIntConstant(m, "KQ_NOTE_LINK", NOTE_LINK);
1861
PyModule_AddIntConstant(m, "KQ_NOTE_RENAME", NOTE_RENAME);
1862
PyModule_AddIntConstant(m, "KQ_NOTE_REVOKE", NOTE_REVOKE);
1864
/* PROC filter flags */
1865
PyModule_AddIntConstant(m, "KQ_NOTE_EXIT", NOTE_EXIT);
1866
PyModule_AddIntConstant(m, "KQ_NOTE_FORK", NOTE_FORK);
1867
PyModule_AddIntConstant(m, "KQ_NOTE_EXEC", NOTE_EXEC);
1868
PyModule_AddIntConstant(m, "KQ_NOTE_PCTRLMASK", NOTE_PCTRLMASK);
1869
PyModule_AddIntConstant(m, "KQ_NOTE_PDATAMASK", NOTE_PDATAMASK);
1871
PyModule_AddIntConstant(m, "KQ_NOTE_TRACK", NOTE_TRACK);
1872
PyModule_AddIntConstant(m, "KQ_NOTE_CHILD", NOTE_CHILD);
1873
PyModule_AddIntConstant(m, "KQ_NOTE_TRACKERR", NOTE_TRACKERR);
1875
/* NETDEV filter flags */
1876
#ifdef EVFILT_NETDEV
1877
PyModule_AddIntConstant(m, "KQ_NOTE_LINKUP", NOTE_LINKUP);
1878
PyModule_AddIntConstant(m, "KQ_NOTE_LINKDOWN", NOTE_LINKDOWN);
1879
PyModule_AddIntConstant(m, "KQ_NOTE_LINKINV", NOTE_LINKINV);
1882
#endif /* HAVE_KQUEUE */