mirror of
https://github.com/python/cpython
synced 2024-09-05 08:17:45 +00:00
![Christian Heimes](/assets/img/avatar_default.png)
- check for ``dup()`` libc function - handle missing ``F_DUPFD`` in ``dup2()`` replacement function - add workaround for WASI libc bug in MSG_TRUNC - ESHUTDOWN is missing, use EPIPE instead - POLLPRI is missing, define as 0 (no-op)
2673 lines
70 KiB
C
2673 lines
70 KiB
C
/* select - Module containing unix select(2) call.
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Under Unix, the file descriptors are small integers.
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Under Win32, select only exists for sockets, and sockets may
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have any value except INVALID_SOCKET.
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*/
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#ifndef Py_BUILD_CORE_BUILTIN
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# define Py_BUILD_CORE_MODULE 1
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#endif
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#if defined(HAVE_POLL_H) && !defined(_GNU_SOURCE)
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# define _GNU_SOURCE
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#endif
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#include "Python.h"
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#include "pycore_fileutils.h" // _Py_set_inheritable()
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#include "structmember.h" // PyMemberDef
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#ifdef HAVE_SYS_DEVPOLL_H
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#include <sys/resource.h>
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#include <sys/devpoll.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#endif
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#ifdef __APPLE__
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/* Perform runtime testing for a broken poll on OSX to make it easier
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* to use the same binary on multiple releases of the OS.
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*/
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#undef HAVE_BROKEN_POLL
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#endif
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/* Windows #defines FD_SETSIZE to 64 if FD_SETSIZE isn't already defined.
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64 is too small (too many people have bumped into that limit).
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Here we boost it.
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Users who want even more than the boosted limit should #define
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FD_SETSIZE higher before this; e.g., via compiler /D switch.
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*/
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#if defined(MS_WINDOWS) && !defined(FD_SETSIZE)
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#define FD_SETSIZE 512
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#endif
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#if defined(HAVE_POLL_H)
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#include <poll.h>
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#elif defined(HAVE_SYS_POLL_H)
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#include <sys/poll.h>
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#endif
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#ifdef __sgi
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/* This is missing from unistd.h */
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extern void bzero(void *, int);
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#endif
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#ifdef HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#ifdef MS_WINDOWS
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# define WIN32_LEAN_AND_MEAN
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# include <winsock.h>
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#else
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# define SOCKET int
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#endif
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// WASI SDK 16 does not have POLLPRIO, define as no-op
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#if defined(__wasi__) && !defined(POLLPRI)
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# define POLLPRI 0
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#endif
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typedef struct {
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PyObject *close;
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PyTypeObject *poll_Type;
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PyTypeObject *devpoll_Type;
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PyTypeObject *pyEpoll_Type;
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PyTypeObject *kqueue_event_Type;
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PyTypeObject *kqueue_queue_Type;
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} _selectstate;
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static struct PyModuleDef selectmodule;
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static inline _selectstate*
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get_select_state(PyObject *module)
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{
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void *state = PyModule_GetState(module);
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assert(state != NULL);
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return (_selectstate *)state;
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}
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#define _selectstate_by_type(type) get_select_state(PyType_GetModule(type))
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/*[clinic input]
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module select
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class select.poll "pollObject *" "_selectstate_by_type(type)->poll_Type"
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class select.devpoll "devpollObject *" "_selectstate_by_type(type)->devpoll_Type"
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class select.epoll "pyEpoll_Object *" "_selectstate_by_type(type)->pyEpoll_Type"
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class select.kqueue "kqueue_queue_Object *" "_selectstate_by_type(type)->kqueue_queue_Type"
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[clinic start generated code]*/
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/*[clinic end generated code: output=da39a3ee5e6b4b0d input=8072de35824aa327]*/
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/* list of Python objects and their file descriptor */
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typedef struct {
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PyObject *obj; /* owned reference */
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SOCKET fd;
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int sentinel; /* -1 == sentinel */
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} pylist;
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static void
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reap_obj(pylist fd2obj[FD_SETSIZE + 1])
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{
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unsigned int i;
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for (i = 0; i < (unsigned int)FD_SETSIZE + 1 && fd2obj[i].sentinel >= 0; i++) {
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Py_CLEAR(fd2obj[i].obj);
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}
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fd2obj[0].sentinel = -1;
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}
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/* returns -1 and sets the Python exception if an error occurred, otherwise
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returns a number >= 0
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*/
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static int
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seq2set(PyObject *seq, fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
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{
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int max = -1;
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unsigned int index = 0;
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Py_ssize_t i;
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PyObject* fast_seq = NULL;
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PyObject* o = NULL;
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fd2obj[0].obj = (PyObject*)0; /* set list to zero size */
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FD_ZERO(set);
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fast_seq = PySequence_Fast(seq, "arguments 1-3 must be sequences");
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if (!fast_seq)
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return -1;
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for (i = 0; i < PySequence_Fast_GET_SIZE(fast_seq); i++) {
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SOCKET v;
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/* any intervening fileno() calls could decr this refcnt */
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if (!(o = PySequence_Fast_GET_ITEM(fast_seq, i)))
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goto finally;
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Py_INCREF(o);
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v = PyObject_AsFileDescriptor( o );
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if (v == -1) goto finally;
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#if defined(_MSC_VER)
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max = 0; /* not used for Win32 */
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#else /* !_MSC_VER */
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if (!_PyIsSelectable_fd(v)) {
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PyErr_SetString(PyExc_ValueError,
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"filedescriptor out of range in select()");
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goto finally;
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}
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if (v > max)
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max = v;
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#endif /* _MSC_VER */
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FD_SET(v, set);
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/* add object and its file descriptor to the list */
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if (index >= (unsigned int)FD_SETSIZE) {
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PyErr_SetString(PyExc_ValueError,
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"too many file descriptors in select()");
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goto finally;
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}
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fd2obj[index].obj = o;
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fd2obj[index].fd = v;
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fd2obj[index].sentinel = 0;
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fd2obj[++index].sentinel = -1;
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}
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Py_DECREF(fast_seq);
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return max+1;
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finally:
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Py_XDECREF(o);
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Py_DECREF(fast_seq);
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return -1;
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}
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/* returns NULL and sets the Python exception if an error occurred */
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static PyObject *
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set2list(fd_set *set, pylist fd2obj[FD_SETSIZE + 1])
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{
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int i, j, count=0;
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PyObject *list, *o;
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SOCKET fd;
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for (j = 0; fd2obj[j].sentinel >= 0; j++) {
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if (FD_ISSET(fd2obj[j].fd, set))
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count++;
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}
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list = PyList_New(count);
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if (!list)
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return NULL;
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i = 0;
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for (j = 0; fd2obj[j].sentinel >= 0; j++) {
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fd = fd2obj[j].fd;
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if (FD_ISSET(fd, set)) {
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o = fd2obj[j].obj;
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fd2obj[j].obj = NULL;
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/* transfer ownership */
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if (PyList_SetItem(list, i, o) < 0)
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goto finally;
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i++;
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}
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}
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return list;
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finally:
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Py_DECREF(list);
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return NULL;
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}
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#undef SELECT_USES_HEAP
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#if FD_SETSIZE > 1024
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#define SELECT_USES_HEAP
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#endif /* FD_SETSIZE > 1024 */
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/*[clinic input]
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select.select
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rlist: object
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wlist: object
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xlist: object
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timeout as timeout_obj: object = None
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/
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Wait until one or more file descriptors are ready for some kind of I/O.
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The first three arguments are iterables of file descriptors to be waited for:
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rlist -- wait until ready for reading
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wlist -- wait until ready for writing
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xlist -- wait for an "exceptional condition"
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If only one kind of condition is required, pass [] for the other lists.
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A file descriptor is either a socket or file object, or a small integer
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gotten from a fileno() method call on one of those.
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The optional 4th argument specifies a timeout in seconds; it may be
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a floating point number to specify fractions of seconds. If it is absent
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or None, the call will never time out.
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The return value is a tuple of three lists corresponding to the first three
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arguments; each contains the subset of the corresponding file descriptors
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that are ready.
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*** IMPORTANT NOTICE ***
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On Windows, only sockets are supported; on Unix, all file
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descriptors can be used.
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[clinic start generated code]*/
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static PyObject *
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select_select_impl(PyObject *module, PyObject *rlist, PyObject *wlist,
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PyObject *xlist, PyObject *timeout_obj)
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/*[clinic end generated code: output=2b3cfa824f7ae4cf input=e467f5d68033de00]*/
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{
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#ifdef SELECT_USES_HEAP
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pylist *rfd2obj, *wfd2obj, *efd2obj;
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#else /* !SELECT_USES_HEAP */
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/* XXX: All this should probably be implemented as follows:
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* - find the highest descriptor we're interested in
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* - add one
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* - that's the size
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* See: Stevens, APitUE, $12.5.1
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*/
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pylist rfd2obj[FD_SETSIZE + 1];
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pylist wfd2obj[FD_SETSIZE + 1];
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pylist efd2obj[FD_SETSIZE + 1];
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#endif /* SELECT_USES_HEAP */
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PyObject *ret = NULL;
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fd_set ifdset, ofdset, efdset;
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struct timeval tv, *tvp;
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int imax, omax, emax, max;
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int n;
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_PyTime_t timeout, deadline = 0;
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if (timeout_obj == Py_None)
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tvp = (struct timeval *)NULL;
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else {
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if (_PyTime_FromSecondsObject(&timeout, timeout_obj,
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_PyTime_ROUND_TIMEOUT) < 0) {
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if (PyErr_ExceptionMatches(PyExc_TypeError)) {
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PyErr_SetString(PyExc_TypeError,
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"timeout must be a float or None");
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}
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return NULL;
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}
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if (_PyTime_AsTimeval(timeout, &tv, _PyTime_ROUND_TIMEOUT) == -1)
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return NULL;
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if (tv.tv_sec < 0) {
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PyErr_SetString(PyExc_ValueError, "timeout must be non-negative");
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return NULL;
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}
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tvp = &tv;
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}
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#ifdef SELECT_USES_HEAP
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/* Allocate memory for the lists */
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rfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
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wfd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
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efd2obj = PyMem_NEW(pylist, FD_SETSIZE + 1);
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if (rfd2obj == NULL || wfd2obj == NULL || efd2obj == NULL) {
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if (rfd2obj) PyMem_Free(rfd2obj);
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if (wfd2obj) PyMem_Free(wfd2obj);
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if (efd2obj) PyMem_Free(efd2obj);
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return PyErr_NoMemory();
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}
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#endif /* SELECT_USES_HEAP */
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/* Convert iterables to fd_sets, and get maximum fd number
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* propagates the Python exception set in seq2set()
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*/
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rfd2obj[0].sentinel = -1;
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wfd2obj[0].sentinel = -1;
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efd2obj[0].sentinel = -1;
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if ((imax = seq2set(rlist, &ifdset, rfd2obj)) < 0)
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goto finally;
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if ((omax = seq2set(wlist, &ofdset, wfd2obj)) < 0)
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goto finally;
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if ((emax = seq2set(xlist, &efdset, efd2obj)) < 0)
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goto finally;
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max = imax;
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if (omax > max) max = omax;
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if (emax > max) max = emax;
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if (tvp) {
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deadline = _PyDeadline_Init(timeout);
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}
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do {
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Py_BEGIN_ALLOW_THREADS
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errno = 0;
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n = select(
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max,
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imax ? &ifdset : NULL,
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omax ? &ofdset : NULL,
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emax ? &efdset : NULL,
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tvp);
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Py_END_ALLOW_THREADS
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if (errno != EINTR)
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break;
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/* select() was interrupted by a signal */
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if (PyErr_CheckSignals())
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goto finally;
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if (tvp) {
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timeout = _PyDeadline_Get(deadline);
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if (timeout < 0) {
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/* bpo-35310: lists were unmodified -- clear them explicitly */
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FD_ZERO(&ifdset);
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FD_ZERO(&ofdset);
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FD_ZERO(&efdset);
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n = 0;
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break;
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}
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_PyTime_AsTimeval_clamp(timeout, &tv, _PyTime_ROUND_CEILING);
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/* retry select() with the recomputed timeout */
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}
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} while (1);
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|
#ifdef MS_WINDOWS
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if (n == SOCKET_ERROR) {
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PyErr_SetExcFromWindowsErr(PyExc_OSError, WSAGetLastError());
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|
}
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#else
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if (n < 0) {
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PyErr_SetFromErrno(PyExc_OSError);
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}
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#endif
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else {
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/* any of these three calls can raise an exception. it's more
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convenient to test for this after all three calls... but
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is that acceptable?
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*/
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rlist = set2list(&ifdset, rfd2obj);
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wlist = set2list(&ofdset, wfd2obj);
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xlist = set2list(&efdset, efd2obj);
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if (PyErr_Occurred())
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ret = NULL;
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else
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ret = PyTuple_Pack(3, rlist, wlist, xlist);
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|
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Py_XDECREF(rlist);
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Py_XDECREF(wlist);
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Py_XDECREF(xlist);
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|
}
|
|
|
|
finally:
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reap_obj(rfd2obj);
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reap_obj(wfd2obj);
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reap_obj(efd2obj);
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#ifdef SELECT_USES_HEAP
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|
PyMem_Free(rfd2obj);
|
|
PyMem_Free(wfd2obj);
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PyMem_Free(efd2obj);
|
|
#endif /* SELECT_USES_HEAP */
|
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return ret;
|
|
}
|
|
|
|
#if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
|
|
/*
|
|
* poll() support
|
|
*/
|
|
|
|
typedef struct {
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PyObject_HEAD
|
|
PyObject *dict;
|
|
int ufd_uptodate;
|
|
int ufd_len;
|
|
struct pollfd *ufds;
|
|
int poll_running;
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|
} pollObject;
|
|
|
|
/* 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
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update_ufd_array(pollObject *self)
|
|
{
|
|
Py_ssize_t i, pos;
|
|
PyObject *key, *value;
|
|
struct pollfd *old_ufds = self->ufds;
|
|
|
|
self->ufd_len = PyDict_GET_SIZE(self->dict);
|
|
PyMem_RESIZE(self->ufds, struct pollfd, self->ufd_len);
|
|
if (self->ufds == NULL) {
|
|
self->ufds = old_ufds;
|
|
PyErr_NoMemory();
|
|
return 0;
|
|
}
|
|
|
|
i = pos = 0;
|
|
while (PyDict_Next(self->dict, &pos, &key, &value)) {
|
|
assert(i < self->ufd_len);
|
|
/* Never overflow */
|
|
self->ufds[i].fd = (int)PyLong_AsLong(key);
|
|
self->ufds[i].events = (short)(unsigned short)PyLong_AsLong(value);
|
|
i++;
|
|
}
|
|
assert(i == self->ufd_len);
|
|
self->ufd_uptodate = 1;
|
|
return 1;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.poll.register
|
|
|
|
fd: fildes
|
|
either an integer, or an object with a fileno() method returning an int
|
|
eventmask: unsigned_short(c_default="POLLIN | POLLPRI | POLLOUT") = select.POLLIN | select.POLLPRI | select.POLLOUT
|
|
an optional bitmask describing the type of events to check for
|
|
/
|
|
|
|
Register a file descriptor with the polling object.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_poll_register_impl(pollObject *self, int fd, unsigned short eventmask)
|
|
/*[clinic end generated code: output=0dc7173c800a4a65 input=34e16cfb28d3c900]*/
|
|
{
|
|
PyObject *key, *value;
|
|
int err;
|
|
|
|
/* Add entry to the internal dictionary: the key is the
|
|
file descriptor, and the value is the event mask. */
|
|
key = PyLong_FromLong(fd);
|
|
if (key == NULL)
|
|
return NULL;
|
|
value = PyLong_FromLong(eventmask);
|
|
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_RETURN_NONE;
|
|
}
|
|
|
|
|
|
/*[clinic input]
|
|
select.poll.modify
|
|
|
|
fd: fildes
|
|
either an integer, or an object with a fileno() method returning
|
|
an int
|
|
eventmask: unsigned_short
|
|
a bitmask describing the type of events to check for
|
|
/
|
|
|
|
Modify an already registered file descriptor.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_poll_modify_impl(pollObject *self, int fd, unsigned short eventmask)
|
|
/*[clinic end generated code: output=1a7b88bf079eff17 input=a8e383df075c32cf]*/
|
|
{
|
|
PyObject *key, *value;
|
|
int err;
|
|
|
|
/* Modify registered fd */
|
|
key = PyLong_FromLong(fd);
|
|
if (key == NULL)
|
|
return NULL;
|
|
err = PyDict_Contains(self->dict, key);
|
|
if (err < 0) {
|
|
Py_DECREF(key);
|
|
return NULL;
|
|
}
|
|
if (err == 0) {
|
|
errno = ENOENT;
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
Py_DECREF(key);
|
|
return NULL;
|
|
}
|
|
value = PyLong_FromLong(eventmask);
|
|
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_RETURN_NONE;
|
|
}
|
|
|
|
|
|
/*[clinic input]
|
|
select.poll.unregister
|
|
|
|
fd: fildes
|
|
/
|
|
|
|
Remove a file descriptor being tracked by the polling object.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_poll_unregister_impl(pollObject *self, int fd)
|
|
/*[clinic end generated code: output=8c9f42e75e7d291b input=4b4fccc1040e79cb]*/
|
|
{
|
|
PyObject *key;
|
|
|
|
/* Check whether the fd is already in the array */
|
|
key = PyLong_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_RETURN_NONE;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.poll.poll
|
|
|
|
timeout as timeout_obj: object = None
|
|
The maximum time to wait in milliseconds, or else None (or a negative
|
|
value) to wait indefinitely.
|
|
/
|
|
|
|
Polls the set of registered file descriptors.
|
|
|
|
Returns a list containing any descriptors that have events or errors to
|
|
report, as a list of (fd, event) 2-tuples.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_poll_poll_impl(pollObject *self, PyObject *timeout_obj)
|
|
/*[clinic end generated code: output=876e837d193ed7e4 input=c2f6953ec45e5622]*/
|
|
{
|
|
PyObject *result_list = NULL;
|
|
int poll_result, i, j;
|
|
PyObject *value = NULL, *num = NULL;
|
|
_PyTime_t timeout = -1, ms = -1, deadline = 0;
|
|
int async_err = 0;
|
|
|
|
if (timeout_obj != Py_None) {
|
|
if (_PyTime_FromMillisecondsObject(&timeout, timeout_obj,
|
|
_PyTime_ROUND_TIMEOUT) < 0) {
|
|
if (PyErr_ExceptionMatches(PyExc_TypeError)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"timeout must be an integer or None");
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
ms = _PyTime_AsMilliseconds(timeout, _PyTime_ROUND_TIMEOUT);
|
|
if (ms < INT_MIN || ms > INT_MAX) {
|
|
PyErr_SetString(PyExc_OverflowError, "timeout is too large");
|
|
return NULL;
|
|
}
|
|
|
|
if (timeout >= 0) {
|
|
deadline = _PyDeadline_Init(timeout);
|
|
}
|
|
}
|
|
|
|
/* On some OSes, typically BSD-based ones, the timeout parameter of the
|
|
poll() syscall, when negative, must be exactly INFTIM, where defined,
|
|
or -1. See issue 31334. */
|
|
if (ms < 0) {
|
|
#ifdef INFTIM
|
|
ms = INFTIM;
|
|
#else
|
|
ms = -1;
|
|
#endif
|
|
}
|
|
|
|
/* Avoid concurrent poll() invocation, issue 8865 */
|
|
if (self->poll_running) {
|
|
PyErr_SetString(PyExc_RuntimeError,
|
|
"concurrent poll() invocation");
|
|
return NULL;
|
|
}
|
|
|
|
/* Ensure the ufd array is up to date */
|
|
if (!self->ufd_uptodate)
|
|
if (update_ufd_array(self) == 0)
|
|
return NULL;
|
|
|
|
self->poll_running = 1;
|
|
|
|
/* call poll() */
|
|
async_err = 0;
|
|
do {
|
|
Py_BEGIN_ALLOW_THREADS
|
|
errno = 0;
|
|
poll_result = poll(self->ufds, self->ufd_len, (int)ms);
|
|
Py_END_ALLOW_THREADS
|
|
|
|
if (errno != EINTR)
|
|
break;
|
|
|
|
/* poll() was interrupted by a signal */
|
|
if (PyErr_CheckSignals()) {
|
|
async_err = 1;
|
|
break;
|
|
}
|
|
|
|
if (timeout >= 0) {
|
|
timeout = _PyDeadline_Get(deadline);
|
|
if (timeout < 0) {
|
|
poll_result = 0;
|
|
break;
|
|
}
|
|
ms = _PyTime_AsMilliseconds(timeout, _PyTime_ROUND_CEILING);
|
|
/* retry poll() with the recomputed timeout */
|
|
}
|
|
} while (1);
|
|
|
|
self->poll_running = 0;
|
|
|
|
if (poll_result < 0) {
|
|
if (!async_err)
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
|
|
/* build the result list */
|
|
|
|
result_list = PyList_New(poll_result);
|
|
if (!result_list)
|
|
return NULL;
|
|
|
|
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 = PyLong_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 = PyLong_FromLong(self->ufds[i].revents & 0xffff);
|
|
if (num == NULL) {
|
|
Py_DECREF(value);
|
|
goto error;
|
|
}
|
|
PyTuple_SET_ITEM(value, 1, num);
|
|
PyList_SET_ITEM(result_list, j, value);
|
|
i++;
|
|
}
|
|
return result_list;
|
|
|
|
error:
|
|
Py_DECREF(result_list);
|
|
return NULL;
|
|
}
|
|
|
|
static pollObject *
|
|
newPollObject(PyObject *module)
|
|
{
|
|
pollObject *self;
|
|
self = PyObject_New(pollObject, get_select_state(module)->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->poll_running = 0;
|
|
self->dict = PyDict_New();
|
|
if (self->dict == NULL) {
|
|
Py_DECREF(self);
|
|
return NULL;
|
|
}
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
poll_dealloc(pollObject *self)
|
|
{
|
|
PyObject* type = (PyObject *)Py_TYPE(self);
|
|
if (self->ufds != NULL)
|
|
PyMem_Free(self->ufds);
|
|
Py_XDECREF(self->dict);
|
|
PyObject_Free(self);
|
|
Py_DECREF(type);
|
|
}
|
|
|
|
|
|
#ifdef HAVE_SYS_DEVPOLL_H
|
|
static PyMethodDef devpoll_methods[];
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
int fd_devpoll;
|
|
int max_n_fds;
|
|
int n_fds;
|
|
struct pollfd *fds;
|
|
} devpollObject;
|
|
|
|
static PyObject *
|
|
devpoll_err_closed(void)
|
|
{
|
|
PyErr_SetString(PyExc_ValueError, "I/O operation on closed devpoll object");
|
|
return NULL;
|
|
}
|
|
|
|
static int devpoll_flush(devpollObject *self)
|
|
{
|
|
int size, n;
|
|
|
|
if (!self->n_fds) return 0;
|
|
|
|
size = sizeof(struct pollfd)*self->n_fds;
|
|
self->n_fds = 0;
|
|
|
|
n = _Py_write(self->fd_devpoll, self->fds, size);
|
|
if (n == -1)
|
|
return -1;
|
|
|
|
if (n < size) {
|
|
/*
|
|
** Data writed to /dev/poll is a binary data structure. It is not
|
|
** clear what to do if a partial write occurred. For now, raise
|
|
** an exception and see if we actually found this problem in
|
|
** the wild.
|
|
** See http://bugs.python.org/issue6397.
|
|
*/
|
|
PyErr_Format(PyExc_OSError, "failed to write all pollfds. "
|
|
"Please, report at http://bugs.python.org/. "
|
|
"Data to report: Size tried: %d, actual size written: %d.",
|
|
size, n);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static PyObject *
|
|
internal_devpoll_register(devpollObject *self, int fd,
|
|
unsigned short events, int remove)
|
|
{
|
|
if (self->fd_devpoll < 0)
|
|
return devpoll_err_closed();
|
|
|
|
if (remove) {
|
|
self->fds[self->n_fds].fd = fd;
|
|
self->fds[self->n_fds].events = POLLREMOVE;
|
|
|
|
if (++self->n_fds == self->max_n_fds) {
|
|
if (devpoll_flush(self))
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
self->fds[self->n_fds].fd = fd;
|
|
self->fds[self->n_fds].events = (signed short)events;
|
|
|
|
if (++self->n_fds == self->max_n_fds) {
|
|
if (devpoll_flush(self))
|
|
return NULL;
|
|
}
|
|
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.devpoll.register
|
|
|
|
fd: fildes
|
|
either an integer, or an object with a fileno() method returning
|
|
an int
|
|
eventmask: unsigned_short(c_default="POLLIN | POLLPRI | POLLOUT") = select.POLLIN | select.POLLPRI | select.POLLOUT
|
|
an optional bitmask describing the type of events to check for
|
|
/
|
|
|
|
Register a file descriptor with the polling object.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_devpoll_register_impl(devpollObject *self, int fd,
|
|
unsigned short eventmask)
|
|
/*[clinic end generated code: output=6e07fe8b74abba0c input=22006fabe9567522]*/
|
|
{
|
|
return internal_devpoll_register(self, fd, eventmask, 0);
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.devpoll.modify
|
|
|
|
fd: fildes
|
|
either an integer, or an object with a fileno() method returning
|
|
an int
|
|
eventmask: unsigned_short(c_default="POLLIN | POLLPRI | POLLOUT") = select.POLLIN | select.POLLPRI | select.POLLOUT
|
|
an optional bitmask describing the type of events to check for
|
|
/
|
|
|
|
Modify a possible already registered file descriptor.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_devpoll_modify_impl(devpollObject *self, int fd,
|
|
unsigned short eventmask)
|
|
/*[clinic end generated code: output=bc2e6d23aaff98b4 input=09fa335db7cdc09e]*/
|
|
{
|
|
return internal_devpoll_register(self, fd, eventmask, 1);
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.devpoll.unregister
|
|
|
|
fd: fildes
|
|
/
|
|
|
|
Remove a file descriptor being tracked by the polling object.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_devpoll_unregister_impl(devpollObject *self, int fd)
|
|
/*[clinic end generated code: output=95519ffa0c7d43fe input=b4ea42a4442fd467]*/
|
|
{
|
|
if (self->fd_devpoll < 0)
|
|
return devpoll_err_closed();
|
|
|
|
self->fds[self->n_fds].fd = fd;
|
|
self->fds[self->n_fds].events = POLLREMOVE;
|
|
|
|
if (++self->n_fds == self->max_n_fds) {
|
|
if (devpoll_flush(self))
|
|
return NULL;
|
|
}
|
|
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.devpoll.poll
|
|
timeout as timeout_obj: object = None
|
|
The maximum time to wait in milliseconds, or else None (or a negative
|
|
value) to wait indefinitely.
|
|
/
|
|
|
|
Polls the set of registered file descriptors.
|
|
|
|
Returns a list containing any descriptors that have events or errors to
|
|
report, as a list of (fd, event) 2-tuples.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_devpoll_poll_impl(devpollObject *self, PyObject *timeout_obj)
|
|
/*[clinic end generated code: output=2654e5457cca0b3c input=3c3f0a355ec2bedb]*/
|
|
{
|
|
struct dvpoll dvp;
|
|
PyObject *result_list = NULL;
|
|
int poll_result, i;
|
|
PyObject *value, *num1, *num2;
|
|
_PyTime_t timeout, ms, deadline = 0;
|
|
|
|
if (self->fd_devpoll < 0)
|
|
return devpoll_err_closed();
|
|
|
|
/* Check values for timeout */
|
|
if (timeout_obj == Py_None) {
|
|
timeout = -1;
|
|
ms = -1;
|
|
}
|
|
else {
|
|
if (_PyTime_FromMillisecondsObject(&timeout, timeout_obj,
|
|
_PyTime_ROUND_TIMEOUT) < 0) {
|
|
if (PyErr_ExceptionMatches(PyExc_TypeError)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"timeout must be an integer or None");
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
ms = _PyTime_AsMilliseconds(timeout, _PyTime_ROUND_TIMEOUT);
|
|
if (ms < -1 || ms > INT_MAX) {
|
|
PyErr_SetString(PyExc_OverflowError, "timeout is too large");
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
if (devpoll_flush(self))
|
|
return NULL;
|
|
|
|
dvp.dp_fds = self->fds;
|
|
dvp.dp_nfds = self->max_n_fds;
|
|
dvp.dp_timeout = (int)ms;
|
|
|
|
if (timeout >= 0) {
|
|
deadline = _PyDeadline_Init(timeout);
|
|
}
|
|
|
|
do {
|
|
/* call devpoll() */
|
|
Py_BEGIN_ALLOW_THREADS
|
|
errno = 0;
|
|
poll_result = ioctl(self->fd_devpoll, DP_POLL, &dvp);
|
|
Py_END_ALLOW_THREADS
|
|
|
|
if (errno != EINTR)
|
|
break;
|
|
|
|
/* devpoll() was interrupted by a signal */
|
|
if (PyErr_CheckSignals())
|
|
return NULL;
|
|
|
|
if (timeout >= 0) {
|
|
timeout = _PyDeadline_Get(deadline);
|
|
if (timeout < 0) {
|
|
poll_result = 0;
|
|
break;
|
|
}
|
|
ms = _PyTime_AsMilliseconds(timeout, _PyTime_ROUND_CEILING);
|
|
dvp.dp_timeout = (int)ms;
|
|
/* retry devpoll() with the recomputed timeout */
|
|
}
|
|
} while (1);
|
|
|
|
if (poll_result < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
|
|
/* build the result list */
|
|
result_list = PyList_New(poll_result);
|
|
if (!result_list)
|
|
return NULL;
|
|
|
|
for (i = 0; i < poll_result; i++) {
|
|
num1 = PyLong_FromLong(self->fds[i].fd);
|
|
num2 = PyLong_FromLong(self->fds[i].revents);
|
|
if ((num1 == NULL) || (num2 == NULL)) {
|
|
Py_XDECREF(num1);
|
|
Py_XDECREF(num2);
|
|
goto error;
|
|
}
|
|
value = PyTuple_Pack(2, num1, num2);
|
|
Py_DECREF(num1);
|
|
Py_DECREF(num2);
|
|
if (value == NULL)
|
|
goto error;
|
|
PyList_SET_ITEM(result_list, i, value);
|
|
}
|
|
|
|
return result_list;
|
|
|
|
error:
|
|
Py_DECREF(result_list);
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
devpoll_internal_close(devpollObject *self)
|
|
{
|
|
int save_errno = 0;
|
|
if (self->fd_devpoll >= 0) {
|
|
int fd = self->fd_devpoll;
|
|
self->fd_devpoll = -1;
|
|
Py_BEGIN_ALLOW_THREADS
|
|
if (close(fd) < 0)
|
|
save_errno = errno;
|
|
Py_END_ALLOW_THREADS
|
|
}
|
|
return save_errno;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.devpoll.close
|
|
|
|
Close the devpoll file descriptor.
|
|
|
|
Further operations on the devpoll object will raise an exception.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_devpoll_close_impl(devpollObject *self)
|
|
/*[clinic end generated code: output=26b355bd6429f21b input=6273c30f5560a99b]*/
|
|
{
|
|
errno = devpoll_internal_close(self);
|
|
if (errno < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
static PyObject*
|
|
devpoll_get_closed(devpollObject *self, void *Py_UNUSED(ignored))
|
|
{
|
|
if (self->fd_devpoll < 0)
|
|
Py_RETURN_TRUE;
|
|
else
|
|
Py_RETURN_FALSE;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.devpoll.fileno
|
|
|
|
Return the file descriptor.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_devpoll_fileno_impl(devpollObject *self)
|
|
/*[clinic end generated code: output=26920929f8d292f4 input=ef15331ebde6c368]*/
|
|
{
|
|
if (self->fd_devpoll < 0)
|
|
return devpoll_err_closed();
|
|
return PyLong_FromLong(self->fd_devpoll);
|
|
}
|
|
|
|
static PyGetSetDef devpoll_getsetlist[] = {
|
|
{"closed", (getter)devpoll_get_closed, NULL,
|
|
"True if the devpoll object is closed"},
|
|
{0},
|
|
};
|
|
|
|
static devpollObject *
|
|
newDevPollObject(PyObject *module)
|
|
{
|
|
devpollObject *self;
|
|
int fd_devpoll, limit_result;
|
|
struct pollfd *fds;
|
|
struct rlimit limit;
|
|
|
|
/*
|
|
** If we try to process more that getrlimit()
|
|
** fds, the kernel will give an error, so
|
|
** we set the limit here. It is a dynamic
|
|
** value, because we can change rlimit() anytime.
|
|
*/
|
|
limit_result = getrlimit(RLIMIT_NOFILE, &limit);
|
|
if (limit_result == -1) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
|
|
fd_devpoll = _Py_open("/dev/poll", O_RDWR);
|
|
if (fd_devpoll == -1)
|
|
return NULL;
|
|
|
|
fds = PyMem_NEW(struct pollfd, limit.rlim_cur);
|
|
if (fds == NULL) {
|
|
close(fd_devpoll);
|
|
PyErr_NoMemory();
|
|
return NULL;
|
|
}
|
|
|
|
self = PyObject_New(devpollObject, get_select_state(module)->devpoll_Type);
|
|
if (self == NULL) {
|
|
close(fd_devpoll);
|
|
PyMem_Free(fds);
|
|
return NULL;
|
|
}
|
|
self->fd_devpoll = fd_devpoll;
|
|
self->max_n_fds = limit.rlim_cur;
|
|
self->n_fds = 0;
|
|
self->fds = fds;
|
|
|
|
return self;
|
|
}
|
|
|
|
static void
|
|
devpoll_dealloc(devpollObject *self)
|
|
{
|
|
PyObject *type = (PyObject *)Py_TYPE(self);
|
|
(void)devpoll_internal_close(self);
|
|
PyMem_Free(self->fds);
|
|
PyObject_Free(self);
|
|
Py_DECREF(type);
|
|
}
|
|
|
|
static PyType_Slot devpoll_Type_slots[] = {
|
|
{Py_tp_dealloc, devpoll_dealloc},
|
|
{Py_tp_getset, devpoll_getsetlist},
|
|
{Py_tp_methods, devpoll_methods},
|
|
{0, 0},
|
|
};
|
|
|
|
static PyType_Spec devpoll_Type_spec = {
|
|
"select.devpoll",
|
|
sizeof(devpollObject),
|
|
0,
|
|
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION,
|
|
devpoll_Type_slots
|
|
};
|
|
|
|
#endif /* HAVE_SYS_DEVPOLL_H */
|
|
|
|
|
|
/*[clinic input]
|
|
select.poll
|
|
|
|
Returns a polling object.
|
|
|
|
This object supports registering and unregistering file descriptors, and then
|
|
polling them for I/O events.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_poll_impl(PyObject *module)
|
|
/*[clinic end generated code: output=16a665a4e1d228c5 input=3f877909d5696bbf]*/
|
|
{
|
|
return (PyObject *)newPollObject(module);
|
|
}
|
|
|
|
#ifdef HAVE_SYS_DEVPOLL_H
|
|
|
|
/*[clinic input]
|
|
select.devpoll
|
|
|
|
Returns a polling object.
|
|
|
|
This object supports registering and unregistering file descriptors, and then
|
|
polling them for I/O events.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_devpoll_impl(PyObject *module)
|
|
/*[clinic end generated code: output=ea9213cc87fd9581 input=53a1af94564f00a3]*/
|
|
{
|
|
return (PyObject *)newDevPollObject(module);
|
|
}
|
|
#endif
|
|
|
|
|
|
#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 */
|
|
|
|
#ifdef HAVE_EPOLL
|
|
/* **************************************************************************
|
|
* epoll interface for Linux 2.6
|
|
*
|
|
* Written by Christian Heimes
|
|
* Inspired by Twisted's _epoll.pyx and select.poll()
|
|
*/
|
|
|
|
#ifdef HAVE_SYS_EPOLL_H
|
|
#include <sys/epoll.h>
|
|
#endif
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
SOCKET epfd; /* epoll control file descriptor */
|
|
} pyEpoll_Object;
|
|
|
|
static PyObject *
|
|
pyepoll_err_closed(void)
|
|
{
|
|
PyErr_SetString(PyExc_ValueError, "I/O operation on closed epoll object");
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
pyepoll_internal_close(pyEpoll_Object *self)
|
|
{
|
|
int save_errno = 0;
|
|
if (self->epfd >= 0) {
|
|
int epfd = self->epfd;
|
|
self->epfd = -1;
|
|
Py_BEGIN_ALLOW_THREADS
|
|
if (close(epfd) < 0)
|
|
save_errno = errno;
|
|
Py_END_ALLOW_THREADS
|
|
}
|
|
return save_errno;
|
|
}
|
|
|
|
static PyObject *
|
|
newPyEpoll_Object(PyTypeObject *type, int sizehint, SOCKET fd)
|
|
{
|
|
pyEpoll_Object *self;
|
|
assert(type != NULL);
|
|
allocfunc epoll_alloc = PyType_GetSlot(type, Py_tp_alloc);
|
|
assert(epoll_alloc != NULL);
|
|
self = (pyEpoll_Object *) epoll_alloc(type, 0);
|
|
if (self == NULL)
|
|
return NULL;
|
|
|
|
if (fd == -1) {
|
|
Py_BEGIN_ALLOW_THREADS
|
|
#ifdef HAVE_EPOLL_CREATE1
|
|
self->epfd = epoll_create1(EPOLL_CLOEXEC);
|
|
#else
|
|
self->epfd = epoll_create(sizehint);
|
|
#endif
|
|
Py_END_ALLOW_THREADS
|
|
}
|
|
else {
|
|
self->epfd = fd;
|
|
}
|
|
if (self->epfd < 0) {
|
|
Py_DECREF(self);
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
|
|
#ifndef HAVE_EPOLL_CREATE1
|
|
if (fd == -1 && _Py_set_inheritable(self->epfd, 0, NULL) < 0) {
|
|
Py_DECREF(self);
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
return (PyObject *)self;
|
|
}
|
|
|
|
|
|
/*[clinic input]
|
|
@classmethod
|
|
select.epoll.__new__
|
|
|
|
sizehint: int = -1
|
|
The expected number of events to be registered. It must be positive,
|
|
or -1 to use the default. It is only used on older systems where
|
|
epoll_create1() is not available; otherwise it has no effect (though its
|
|
value is still checked).
|
|
flags: int = 0
|
|
Deprecated and completely ignored. However, when supplied, its value
|
|
must be 0 or select.EPOLL_CLOEXEC, otherwise OSError is raised.
|
|
|
|
Returns an epolling object.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll_impl(PyTypeObject *type, int sizehint, int flags)
|
|
/*[clinic end generated code: output=c87404e705013bb5 input=303e3295e7975e43]*/
|
|
{
|
|
if (sizehint == -1) {
|
|
sizehint = FD_SETSIZE - 1;
|
|
}
|
|
else if (sizehint <= 0) {
|
|
PyErr_SetString(PyExc_ValueError, "negative sizehint");
|
|
return NULL;
|
|
}
|
|
|
|
#ifdef HAVE_EPOLL_CREATE1
|
|
if (flags && flags != EPOLL_CLOEXEC) {
|
|
PyErr_SetString(PyExc_OSError, "invalid flags");
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
return newPyEpoll_Object(type, sizehint, -1);
|
|
}
|
|
|
|
|
|
static void
|
|
pyepoll_dealloc(pyEpoll_Object *self)
|
|
{
|
|
PyTypeObject* type = Py_TYPE(self);
|
|
(void)pyepoll_internal_close(self);
|
|
freefunc epoll_free = PyType_GetSlot(type, Py_tp_free);
|
|
epoll_free((PyObject *)self);
|
|
Py_DECREF((PyObject *)type);
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.epoll.close
|
|
|
|
Close the epoll control file descriptor.
|
|
|
|
Further operations on the epoll object will raise an exception.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll_close_impl(pyEpoll_Object *self)
|
|
/*[clinic end generated code: output=ee2144c446a1a435 input=ca6c66ba5a736bfd]*/
|
|
{
|
|
errno = pyepoll_internal_close(self);
|
|
if (errno < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
|
|
static PyObject*
|
|
pyepoll_get_closed(pyEpoll_Object *self, void *Py_UNUSED(ignored))
|
|
{
|
|
if (self->epfd < 0)
|
|
Py_RETURN_TRUE;
|
|
else
|
|
Py_RETURN_FALSE;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.epoll.fileno
|
|
|
|
Return the epoll control file descriptor.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll_fileno_impl(pyEpoll_Object *self)
|
|
/*[clinic end generated code: output=e171375fdc619ba3 input=c11091a6aee60b5c]*/
|
|
{
|
|
if (self->epfd < 0)
|
|
return pyepoll_err_closed();
|
|
return PyLong_FromLong(self->epfd);
|
|
}
|
|
|
|
|
|
/*[clinic input]
|
|
@classmethod
|
|
select.epoll.fromfd
|
|
|
|
fd: int
|
|
/
|
|
|
|
Create an epoll object from a given control fd.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll_fromfd_impl(PyTypeObject *type, int fd)
|
|
/*[clinic end generated code: output=c15de2a083524e8e input=faecefdb55e3046e]*/
|
|
{
|
|
SOCKET s_fd = (SOCKET)fd;
|
|
return newPyEpoll_Object(type, FD_SETSIZE - 1, s_fd);
|
|
}
|
|
|
|
|
|
static PyObject *
|
|
pyepoll_internal_ctl(int epfd, int op, int fd, unsigned int events)
|
|
{
|
|
struct epoll_event ev;
|
|
int result;
|
|
|
|
if (epfd < 0)
|
|
return pyepoll_err_closed();
|
|
|
|
switch (op) {
|
|
case EPOLL_CTL_ADD:
|
|
case EPOLL_CTL_MOD:
|
|
ev.events = events;
|
|
ev.data.fd = fd;
|
|
Py_BEGIN_ALLOW_THREADS
|
|
result = epoll_ctl(epfd, op, fd, &ev);
|
|
Py_END_ALLOW_THREADS
|
|
break;
|
|
case EPOLL_CTL_DEL:
|
|
/* In kernel versions before 2.6.9, the EPOLL_CTL_DEL
|
|
* operation required a non-NULL pointer in event, even
|
|
* though this argument is ignored. */
|
|
Py_BEGIN_ALLOW_THREADS
|
|
result = epoll_ctl(epfd, op, fd, &ev);
|
|
Py_END_ALLOW_THREADS
|
|
break;
|
|
default:
|
|
result = -1;
|
|
errno = EINVAL;
|
|
}
|
|
|
|
if (result < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.epoll.register
|
|
|
|
fd: fildes
|
|
the target file descriptor of the operation
|
|
eventmask: unsigned_int(c_default="EPOLLIN | EPOLLPRI | EPOLLOUT", bitwise=True) = select.EPOLLIN | select.EPOLLPRI | select.EPOLLOUT
|
|
a bit set composed of the various EPOLL constants
|
|
|
|
Registers a new fd or raises an OSError if the fd is already registered.
|
|
|
|
The epoll interface supports all file descriptors that support poll.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll_register_impl(pyEpoll_Object *self, int fd,
|
|
unsigned int eventmask)
|
|
/*[clinic end generated code: output=318e5e6386520599 input=a5071b71edfe3578]*/
|
|
{
|
|
return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_ADD, fd, eventmask);
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.epoll.modify
|
|
|
|
fd: fildes
|
|
the target file descriptor of the operation
|
|
eventmask: unsigned_int(bitwise=True)
|
|
a bit set composed of the various EPOLL constants
|
|
|
|
Modify event mask for a registered file descriptor.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll_modify_impl(pyEpoll_Object *self, int fd,
|
|
unsigned int eventmask)
|
|
/*[clinic end generated code: output=7e3447307cff6f65 input=88a83dac53a8c3da]*/
|
|
{
|
|
return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_MOD, fd, eventmask);
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.epoll.unregister
|
|
|
|
fd: fildes
|
|
the target file descriptor of the operation
|
|
|
|
Remove a registered file descriptor from the epoll object.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll_unregister_impl(pyEpoll_Object *self, int fd)
|
|
/*[clinic end generated code: output=07c5dbd612a512d4 input=3093f68d3644743d]*/
|
|
{
|
|
return pyepoll_internal_ctl(self->epfd, EPOLL_CTL_DEL, fd, 0);
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.epoll.poll
|
|
|
|
timeout as timeout_obj: object = None
|
|
the maximum time to wait in seconds (as float);
|
|
a timeout of None or -1 makes poll wait indefinitely
|
|
maxevents: int = -1
|
|
the maximum number of events returned; -1 means no limit
|
|
|
|
Wait for events on the epoll file descriptor.
|
|
|
|
Returns a list containing any descriptors that have events to report,
|
|
as a list of (fd, events) 2-tuples.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll_poll_impl(pyEpoll_Object *self, PyObject *timeout_obj,
|
|
int maxevents)
|
|
/*[clinic end generated code: output=e02d121a20246c6c input=33d34a5ea430fd5b]*/
|
|
{
|
|
int nfds, i;
|
|
PyObject *elist = NULL, *etuple = NULL;
|
|
struct epoll_event *evs = NULL;
|
|
_PyTime_t timeout = -1, ms = -1, deadline = 0;
|
|
|
|
if (self->epfd < 0)
|
|
return pyepoll_err_closed();
|
|
|
|
if (timeout_obj != Py_None) {
|
|
/* epoll_wait() has a resolution of 1 millisecond, round towards
|
|
infinity to wait at least timeout seconds. */
|
|
if (_PyTime_FromSecondsObject(&timeout, timeout_obj,
|
|
_PyTime_ROUND_TIMEOUT) < 0) {
|
|
if (PyErr_ExceptionMatches(PyExc_TypeError)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"timeout must be an integer or None");
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
ms = _PyTime_AsMilliseconds(timeout, _PyTime_ROUND_CEILING);
|
|
if (ms < INT_MIN || ms > INT_MAX) {
|
|
PyErr_SetString(PyExc_OverflowError, "timeout is too large");
|
|
return NULL;
|
|
}
|
|
/* epoll_wait(2) treats all arbitrary negative numbers the same
|
|
for the timeout argument, but -1 is the documented way to block
|
|
indefinitely in the epoll_wait(2) documentation, so we set ms
|
|
to -1 if the value of ms is a negative number.
|
|
|
|
Note that we didn't use INFTIM here since it's non-standard and
|
|
isn't available under Linux. */
|
|
if (ms < 0) {
|
|
ms = -1;
|
|
}
|
|
|
|
if (timeout >= 0) {
|
|
deadline = _PyDeadline_Init(timeout);
|
|
}
|
|
}
|
|
|
|
if (maxevents == -1) {
|
|
maxevents = FD_SETSIZE-1;
|
|
}
|
|
else if (maxevents < 1) {
|
|
PyErr_Format(PyExc_ValueError,
|
|
"maxevents must be greater than 0, got %d",
|
|
maxevents);
|
|
return NULL;
|
|
}
|
|
|
|
evs = PyMem_New(struct epoll_event, maxevents);
|
|
if (evs == NULL) {
|
|
PyErr_NoMemory();
|
|
return NULL;
|
|
}
|
|
|
|
do {
|
|
Py_BEGIN_ALLOW_THREADS
|
|
errno = 0;
|
|
nfds = epoll_wait(self->epfd, evs, maxevents, (int)ms);
|
|
Py_END_ALLOW_THREADS
|
|
|
|
if (errno != EINTR)
|
|
break;
|
|
|
|
/* poll() was interrupted by a signal */
|
|
if (PyErr_CheckSignals())
|
|
goto error;
|
|
|
|
if (timeout >= 0) {
|
|
timeout = _PyDeadline_Get(deadline);
|
|
if (timeout < 0) {
|
|
nfds = 0;
|
|
break;
|
|
}
|
|
ms = _PyTime_AsMilliseconds(timeout, _PyTime_ROUND_CEILING);
|
|
/* retry epoll_wait() with the recomputed timeout */
|
|
}
|
|
} while(1);
|
|
|
|
if (nfds < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
goto error;
|
|
}
|
|
|
|
elist = PyList_New(nfds);
|
|
if (elist == NULL) {
|
|
goto error;
|
|
}
|
|
|
|
for (i = 0; i < nfds; i++) {
|
|
etuple = Py_BuildValue("iI", evs[i].data.fd, evs[i].events);
|
|
if (etuple == NULL) {
|
|
Py_CLEAR(elist);
|
|
goto error;
|
|
}
|
|
PyList_SET_ITEM(elist, i, etuple);
|
|
}
|
|
|
|
error:
|
|
PyMem_Free(evs);
|
|
return elist;
|
|
}
|
|
|
|
|
|
/*[clinic input]
|
|
select.epoll.__enter__
|
|
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll___enter___impl(pyEpoll_Object *self)
|
|
/*[clinic end generated code: output=ab45d433504db2a0 input=3c22568587efeadb]*/
|
|
{
|
|
if (self->epfd < 0)
|
|
return pyepoll_err_closed();
|
|
|
|
Py_INCREF(self);
|
|
return (PyObject *)self;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.epoll.__exit__
|
|
|
|
exc_type: object = None
|
|
exc_value: object = None
|
|
exc_tb: object = None
|
|
/
|
|
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_epoll___exit___impl(pyEpoll_Object *self, PyObject *exc_type,
|
|
PyObject *exc_value, PyObject *exc_tb)
|
|
/*[clinic end generated code: output=c480f38ce361748e input=7ae81a5a4c1a98d8]*/
|
|
{
|
|
_selectstate *state = _selectstate_by_type(Py_TYPE(self));
|
|
return PyObject_CallMethodObjArgs((PyObject *)self, state->close, NULL);
|
|
}
|
|
|
|
static PyGetSetDef pyepoll_getsetlist[] = {
|
|
{"closed", (getter)pyepoll_get_closed, NULL,
|
|
"True if the epoll handler is closed"},
|
|
{0},
|
|
};
|
|
|
|
PyDoc_STRVAR(pyepoll_doc,
|
|
"select.epoll(sizehint=-1, flags=0)\n\
|
|
\n\
|
|
Returns an epolling object\n\
|
|
\n\
|
|
sizehint must be a positive integer or -1 for the default size. The\n\
|
|
sizehint is used to optimize internal data structures. It doesn't limit\n\
|
|
the maximum number of monitored events.");
|
|
|
|
#endif /* HAVE_EPOLL */
|
|
|
|
#ifdef HAVE_KQUEUE
|
|
/* **************************************************************************
|
|
* kqueue interface for BSD
|
|
*
|
|
* Copyright (c) 2000 Doug White, 2006 James Knight, 2007 Christian Heimes
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifdef HAVE_SYS_EVENT_H
|
|
#include <sys/event.h>
|
|
#endif
|
|
|
|
PyDoc_STRVAR(kqueue_event_doc,
|
|
"kevent(ident, filter=KQ_FILTER_READ, flags=KQ_EV_ADD, fflags=0, data=0, udata=0)\n\
|
|
\n\
|
|
This object is the equivalent of the struct kevent for the C API.\n\
|
|
\n\
|
|
See the kqueue manpage for more detailed information about the meaning\n\
|
|
of the arguments.\n\
|
|
\n\
|
|
One minor note: while you might hope that udata could store a\n\
|
|
reference to a python object, it cannot, because it is impossible to\n\
|
|
keep a proper reference count of the object once it's passed into the\n\
|
|
kernel. Therefore, I have restricted it to only storing an integer. I\n\
|
|
recommend ignoring it and simply using the 'ident' field to key off\n\
|
|
of. You could also set up a dictionary on the python side to store a\n\
|
|
udata->object mapping.");
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
struct kevent e;
|
|
} kqueue_event_Object;
|
|
|
|
#define kqueue_event_Check(op, state) (PyObject_TypeCheck((op), state->kqueue_event_Type))
|
|
|
|
typedef struct {
|
|
PyObject_HEAD
|
|
SOCKET kqfd; /* kqueue control fd */
|
|
} kqueue_queue_Object;
|
|
|
|
#if (SIZEOF_UINTPTR_T != SIZEOF_VOID_P)
|
|
# error uintptr_t does not match void *!
|
|
#elif (SIZEOF_UINTPTR_T == SIZEOF_LONG_LONG)
|
|
# define T_UINTPTRT T_ULONGLONG
|
|
# define T_INTPTRT T_LONGLONG
|
|
# define UINTPTRT_FMT_UNIT "K"
|
|
# define INTPTRT_FMT_UNIT "L"
|
|
#elif (SIZEOF_UINTPTR_T == SIZEOF_LONG)
|
|
# define T_UINTPTRT T_ULONG
|
|
# define T_INTPTRT T_LONG
|
|
# define UINTPTRT_FMT_UNIT "k"
|
|
# define INTPTRT_FMT_UNIT "l"
|
|
#elif (SIZEOF_UINTPTR_T == SIZEOF_INT)
|
|
# define T_UINTPTRT T_UINT
|
|
# define T_INTPTRT T_INT
|
|
# define UINTPTRT_FMT_UNIT "I"
|
|
# define INTPTRT_FMT_UNIT "i"
|
|
#else
|
|
# error uintptr_t does not match int, long, or long long!
|
|
#endif
|
|
|
|
#if SIZEOF_LONG_LONG == 8
|
|
# define T_INT64 T_LONGLONG
|
|
# define INT64_FMT_UNIT "L"
|
|
#elif SIZEOF_LONG == 8
|
|
# define T_INT64 T_LONG
|
|
# define INT64_FMT_UNIT "l"
|
|
#elif SIZEOF_INT == 8
|
|
# define T_INT64 T_INT
|
|
# define INT64_FMT_UNIT "i"
|
|
#else
|
|
# define INT64_FMT_UNIT "_"
|
|
#endif
|
|
|
|
#if SIZEOF_LONG_LONG == 4
|
|
# define T_UINT32 T_ULONGLONG
|
|
# define UINT32_FMT_UNIT "K"
|
|
#elif SIZEOF_LONG == 4
|
|
# define T_UINT32 T_ULONG
|
|
# define UINT32_FMT_UNIT "k"
|
|
#elif SIZEOF_INT == 4
|
|
# define T_UINT32 T_UINT
|
|
# define UINT32_FMT_UNIT "I"
|
|
#else
|
|
# define UINT32_FMT_UNIT "_"
|
|
#endif
|
|
|
|
/*
|
|
* kevent is not standard and its members vary across BSDs.
|
|
*/
|
|
#ifdef __NetBSD__
|
|
# define FILTER_TYPE T_UINT32
|
|
# define FILTER_FMT_UNIT UINT32_FMT_UNIT
|
|
# define FLAGS_TYPE T_UINT32
|
|
# define FLAGS_FMT_UNIT UINT32_FMT_UNIT
|
|
# define FFLAGS_TYPE T_UINT32
|
|
# define FFLAGS_FMT_UNIT UINT32_FMT_UNIT
|
|
#else
|
|
# define FILTER_TYPE T_SHORT
|
|
# define FILTER_FMT_UNIT "h"
|
|
# define FLAGS_TYPE T_USHORT
|
|
# define FLAGS_FMT_UNIT "H"
|
|
# define FFLAGS_TYPE T_UINT
|
|
# define FFLAGS_FMT_UNIT "I"
|
|
#endif
|
|
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
# define DATA_TYPE T_INT64
|
|
# define DATA_FMT_UNIT INT64_FMT_UNIT
|
|
#else
|
|
# define DATA_TYPE T_INTPTRT
|
|
# define DATA_FMT_UNIT INTPTRT_FMT_UNIT
|
|
#endif
|
|
|
|
/* Unfortunately, we can't store python objects in udata, because
|
|
* kevents in the kernel can be removed without warning, which would
|
|
* forever lose the refcount on the object stored with it.
|
|
*/
|
|
|
|
#define KQ_OFF(x) offsetof(kqueue_event_Object, x)
|
|
static struct PyMemberDef kqueue_event_members[] = {
|
|
{"ident", T_UINTPTRT, KQ_OFF(e.ident)},
|
|
{"filter", FILTER_TYPE, KQ_OFF(e.filter)},
|
|
{"flags", FLAGS_TYPE, KQ_OFF(e.flags)},
|
|
{"fflags", T_UINT, KQ_OFF(e.fflags)},
|
|
{"data", DATA_TYPE, KQ_OFF(e.data)},
|
|
{"udata", T_UINTPTRT, KQ_OFF(e.udata)},
|
|
{NULL} /* Sentinel */
|
|
};
|
|
#undef KQ_OFF
|
|
|
|
static PyObject *
|
|
|
|
kqueue_event_repr(kqueue_event_Object *s)
|
|
{
|
|
char buf[1024];
|
|
PyOS_snprintf(
|
|
buf, sizeof(buf),
|
|
"<select.kevent ident=%zu filter=%d flags=0x%x fflags=0x%x "
|
|
"data=0x%llx udata=%p>",
|
|
(size_t)(s->e.ident), (int)s->e.filter, (unsigned int)s->e.flags,
|
|
(unsigned int)s->e.fflags, (long long)(s->e.data), (void *)s->e.udata);
|
|
return PyUnicode_FromString(buf);
|
|
}
|
|
|
|
static int
|
|
kqueue_event_init(kqueue_event_Object *self, PyObject *args, PyObject *kwds)
|
|
{
|
|
PyObject *pfd;
|
|
static char *kwlist[] = {"ident", "filter", "flags", "fflags",
|
|
"data", "udata", NULL};
|
|
static const char fmt[] = "O|"
|
|
FILTER_FMT_UNIT FLAGS_FMT_UNIT FFLAGS_FMT_UNIT DATA_FMT_UNIT
|
|
UINTPTRT_FMT_UNIT ":kevent";
|
|
|
|
EV_SET(&(self->e), 0, EVFILT_READ, EV_ADD, 0, 0, 0); /* defaults */
|
|
|
|
if (!PyArg_ParseTupleAndKeywords(args, kwds, fmt, kwlist,
|
|
&pfd, &(self->e.filter), &(self->e.flags),
|
|
&(self->e.fflags), &(self->e.data), &(self->e.udata))) {
|
|
return -1;
|
|
}
|
|
|
|
if (PyLong_Check(pfd)) {
|
|
self->e.ident = PyLong_AsSize_t(pfd);
|
|
}
|
|
else {
|
|
self->e.ident = PyObject_AsFileDescriptor(pfd);
|
|
}
|
|
if (PyErr_Occurred()) {
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static PyObject *
|
|
kqueue_event_richcompare(kqueue_event_Object *s, kqueue_event_Object *o,
|
|
int op)
|
|
{
|
|
int result;
|
|
_selectstate *state = _selectstate_by_type(Py_TYPE(s));
|
|
|
|
if (!kqueue_event_Check(o, state)) {
|
|
Py_RETURN_NOTIMPLEMENTED;
|
|
}
|
|
|
|
#define CMP(a, b) ((a) != (b)) ? ((a) < (b) ? -1 : 1)
|
|
result = CMP(s->e.ident, o->e.ident)
|
|
: CMP(s->e.filter, o->e.filter)
|
|
: CMP(s->e.flags, o->e.flags)
|
|
: CMP(s->e.fflags, o->e.fflags)
|
|
: CMP(s->e.data, o->e.data)
|
|
: CMP((intptr_t)s->e.udata, (intptr_t)o->e.udata)
|
|
: 0;
|
|
#undef CMP
|
|
|
|
Py_RETURN_RICHCOMPARE(result, 0, op);
|
|
}
|
|
|
|
static PyType_Slot kqueue_event_Type_slots[] = {
|
|
{Py_tp_doc, (void*)kqueue_event_doc},
|
|
{Py_tp_init, kqueue_event_init},
|
|
{Py_tp_members, kqueue_event_members},
|
|
{Py_tp_new, PyType_GenericNew},
|
|
{Py_tp_repr, kqueue_event_repr},
|
|
{Py_tp_richcompare, kqueue_event_richcompare},
|
|
{0, 0},
|
|
};
|
|
|
|
static PyType_Spec kqueue_event_Type_spec = {
|
|
"select.kevent",
|
|
sizeof(kqueue_event_Object),
|
|
0,
|
|
Py_TPFLAGS_DEFAULT,
|
|
kqueue_event_Type_slots
|
|
};
|
|
|
|
static PyObject *
|
|
kqueue_queue_err_closed(void)
|
|
{
|
|
PyErr_SetString(PyExc_ValueError, "I/O operation on closed kqueue object");
|
|
return NULL;
|
|
}
|
|
|
|
static int
|
|
kqueue_queue_internal_close(kqueue_queue_Object *self)
|
|
{
|
|
int save_errno = 0;
|
|
if (self->kqfd >= 0) {
|
|
int kqfd = self->kqfd;
|
|
self->kqfd = -1;
|
|
Py_BEGIN_ALLOW_THREADS
|
|
if (close(kqfd) < 0)
|
|
save_errno = errno;
|
|
Py_END_ALLOW_THREADS
|
|
}
|
|
return save_errno;
|
|
}
|
|
|
|
static PyObject *
|
|
newKqueue_Object(PyTypeObject *type, SOCKET fd)
|
|
{
|
|
kqueue_queue_Object *self;
|
|
assert(type != NULL);
|
|
allocfunc queue_alloc = PyType_GetSlot(type, Py_tp_alloc);
|
|
assert(queue_alloc != NULL);
|
|
self = (kqueue_queue_Object *) queue_alloc(type, 0);
|
|
if (self == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
if (fd == -1) {
|
|
Py_BEGIN_ALLOW_THREADS
|
|
self->kqfd = kqueue();
|
|
Py_END_ALLOW_THREADS
|
|
}
|
|
else {
|
|
self->kqfd = fd;
|
|
}
|
|
if (self->kqfd < 0) {
|
|
Py_DECREF(self);
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
|
|
if (fd == -1) {
|
|
if (_Py_set_inheritable(self->kqfd, 0, NULL) < 0) {
|
|
Py_DECREF(self);
|
|
return NULL;
|
|
}
|
|
}
|
|
return (PyObject *)self;
|
|
}
|
|
|
|
/*[clinic input]
|
|
@classmethod
|
|
select.kqueue.__new__
|
|
|
|
Kqueue syscall wrapper.
|
|
|
|
For example, to start watching a socket for input:
|
|
>>> kq = kqueue()
|
|
>>> sock = socket()
|
|
>>> sock.connect((host, port))
|
|
>>> kq.control([kevent(sock, KQ_FILTER_WRITE, KQ_EV_ADD)], 0)
|
|
|
|
To wait one second for it to become writeable:
|
|
>>> kq.control(None, 1, 1000)
|
|
|
|
To stop listening:
|
|
>>> kq.control([kevent(sock, KQ_FILTER_WRITE, KQ_EV_DELETE)], 0)
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_kqueue_impl(PyTypeObject *type)
|
|
/*[clinic end generated code: output=e0ff89f154d56236 input=cf625e49218366e8]*/
|
|
{
|
|
return newKqueue_Object(type, -1);
|
|
}
|
|
|
|
static void
|
|
kqueue_queue_dealloc(kqueue_queue_Object *self)
|
|
{
|
|
PyTypeObject* type = Py_TYPE(self);
|
|
kqueue_queue_internal_close(self);
|
|
freefunc kqueue_free = PyType_GetSlot(type, Py_tp_free);
|
|
kqueue_free((PyObject *)self);
|
|
Py_DECREF((PyObject *)type);
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.kqueue.close
|
|
|
|
Close the kqueue control file descriptor.
|
|
|
|
Further operations on the kqueue object will raise an exception.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_kqueue_close_impl(kqueue_queue_Object *self)
|
|
/*[clinic end generated code: output=d1c7df0b407a4bc1 input=0b12d95430e0634c]*/
|
|
{
|
|
errno = kqueue_queue_internal_close(self);
|
|
if (errno < 0) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
return NULL;
|
|
}
|
|
Py_RETURN_NONE;
|
|
}
|
|
|
|
static PyObject*
|
|
kqueue_queue_get_closed(kqueue_queue_Object *self, void *Py_UNUSED(ignored))
|
|
{
|
|
if (self->kqfd < 0)
|
|
Py_RETURN_TRUE;
|
|
else
|
|
Py_RETURN_FALSE;
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.kqueue.fileno
|
|
|
|
Return the kqueue control file descriptor.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_kqueue_fileno_impl(kqueue_queue_Object *self)
|
|
/*[clinic end generated code: output=716f46112a4f6e5c input=41911c539ca2b0ca]*/
|
|
{
|
|
if (self->kqfd < 0)
|
|
return kqueue_queue_err_closed();
|
|
return PyLong_FromLong(self->kqfd);
|
|
}
|
|
|
|
/*[clinic input]
|
|
@classmethod
|
|
select.kqueue.fromfd
|
|
|
|
fd: int
|
|
/
|
|
|
|
Create a kqueue object from a given control fd.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_kqueue_fromfd_impl(PyTypeObject *type, int fd)
|
|
/*[clinic end generated code: output=d02c3c7dc538a653 input=f6172a48ca4ecdd0]*/
|
|
{
|
|
SOCKET s_fd = (SOCKET)fd;
|
|
|
|
return newKqueue_Object(type, s_fd);
|
|
}
|
|
|
|
/*[clinic input]
|
|
select.kqueue.control
|
|
|
|
changelist: object
|
|
Must be an iterable of kevent objects describing the changes to be made
|
|
to the kernel's watch list or None.
|
|
maxevents: int
|
|
The maximum number of events that the kernel will return.
|
|
timeout as otimeout: object = None
|
|
The maximum time to wait in seconds, or else None to wait forever.
|
|
This accepts floats for smaller timeouts, too.
|
|
/
|
|
|
|
Calls the kernel kevent function.
|
|
[clinic start generated code]*/
|
|
|
|
static PyObject *
|
|
select_kqueue_control_impl(kqueue_queue_Object *self, PyObject *changelist,
|
|
int maxevents, PyObject *otimeout)
|
|
/*[clinic end generated code: output=81324ff5130db7ae input=59c4e30811209c47]*/
|
|
{
|
|
int gotevents = 0;
|
|
int nchanges = 0;
|
|
int i = 0;
|
|
PyObject *seq = NULL, *ei = NULL;
|
|
PyObject *result = NULL;
|
|
struct kevent *evl = NULL;
|
|
struct kevent *chl = NULL;
|
|
struct timespec timeoutspec;
|
|
struct timespec *ptimeoutspec;
|
|
_PyTime_t timeout, deadline = 0;
|
|
_selectstate *state = _selectstate_by_type(Py_TYPE(self));
|
|
|
|
if (self->kqfd < 0)
|
|
return kqueue_queue_err_closed();
|
|
|
|
if (maxevents < 0) {
|
|
PyErr_Format(PyExc_ValueError,
|
|
"Length of eventlist must be 0 or positive, got %d",
|
|
maxevents);
|
|
return NULL;
|
|
}
|
|
|
|
if (otimeout == Py_None) {
|
|
ptimeoutspec = NULL;
|
|
}
|
|
else {
|
|
if (_PyTime_FromSecondsObject(&timeout,
|
|
otimeout, _PyTime_ROUND_TIMEOUT) < 0) {
|
|
PyErr_Format(PyExc_TypeError,
|
|
"timeout argument must be a number "
|
|
"or None, got %.200s",
|
|
_PyType_Name(Py_TYPE(otimeout)));
|
|
return NULL;
|
|
}
|
|
|
|
if (_PyTime_AsTimespec(timeout, &timeoutspec) == -1)
|
|
return NULL;
|
|
|
|
if (timeoutspec.tv_sec < 0) {
|
|
PyErr_SetString(PyExc_ValueError,
|
|
"timeout must be positive or None");
|
|
return NULL;
|
|
}
|
|
ptimeoutspec = &timeoutspec;
|
|
}
|
|
|
|
if (changelist != Py_None) {
|
|
seq = PySequence_Fast(changelist, "changelist is not iterable");
|
|
if (seq == NULL) {
|
|
return NULL;
|
|
}
|
|
if (PySequence_Fast_GET_SIZE(seq) > INT_MAX) {
|
|
PyErr_SetString(PyExc_OverflowError,
|
|
"changelist is too long");
|
|
goto error;
|
|
}
|
|
nchanges = (int)PySequence_Fast_GET_SIZE(seq);
|
|
|
|
chl = PyMem_New(struct kevent, nchanges);
|
|
if (chl == NULL) {
|
|
PyErr_NoMemory();
|
|
goto error;
|
|
}
|
|
_selectstate *state = _selectstate_by_type(Py_TYPE(self));
|
|
for (i = 0; i < nchanges; ++i) {
|
|
ei = PySequence_Fast_GET_ITEM(seq, i);
|
|
if (!kqueue_event_Check(ei, state)) {
|
|
PyErr_SetString(PyExc_TypeError,
|
|
"changelist must be an iterable of "
|
|
"select.kevent objects");
|
|
goto error;
|
|
}
|
|
chl[i] = ((kqueue_event_Object *)ei)->e;
|
|
}
|
|
Py_CLEAR(seq);
|
|
}
|
|
|
|
/* event list */
|
|
if (maxevents) {
|
|
evl = PyMem_New(struct kevent, maxevents);
|
|
if (evl == NULL) {
|
|
PyErr_NoMemory();
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (ptimeoutspec) {
|
|
deadline = _PyDeadline_Init(timeout);
|
|
}
|
|
|
|
do {
|
|
Py_BEGIN_ALLOW_THREADS
|
|
errno = 0;
|
|
gotevents = kevent(self->kqfd, chl, nchanges,
|
|
evl, maxevents, ptimeoutspec);
|
|
Py_END_ALLOW_THREADS
|
|
|
|
if (errno != EINTR)
|
|
break;
|
|
|
|
/* kevent() was interrupted by a signal */
|
|
if (PyErr_CheckSignals())
|
|
goto error;
|
|
|
|
if (ptimeoutspec) {
|
|
timeout = _PyDeadline_Get(deadline);
|
|
if (timeout < 0) {
|
|
gotevents = 0;
|
|
break;
|
|
}
|
|
if (_PyTime_AsTimespec(timeout, &timeoutspec) == -1)
|
|
goto error;
|
|
/* retry kevent() with the recomputed timeout */
|
|
}
|
|
} while (1);
|
|
|
|
if (gotevents == -1) {
|
|
PyErr_SetFromErrno(PyExc_OSError);
|
|
goto error;
|
|
}
|
|
|
|
result = PyList_New(gotevents);
|
|
if (result == NULL) {
|
|
goto error;
|
|
}
|
|
|
|
for (i = 0; i < gotevents; i++) {
|
|
kqueue_event_Object *ch;
|
|
|
|
ch = PyObject_New(kqueue_event_Object, state->kqueue_event_Type);
|
|
if (ch == NULL) {
|
|
goto error;
|
|
}
|
|
ch->e = evl[i];
|
|
PyList_SET_ITEM(result, i, (PyObject *)ch);
|
|
}
|
|
PyMem_Free(chl);
|
|
PyMem_Free(evl);
|
|
return result;
|
|
|
|
error:
|
|
PyMem_Free(chl);
|
|
PyMem_Free(evl);
|
|
Py_XDECREF(result);
|
|
Py_XDECREF(seq);
|
|
return NULL;
|
|
}
|
|
|
|
static PyGetSetDef kqueue_queue_getsetlist[] = {
|
|
{"closed", (getter)kqueue_queue_get_closed, NULL,
|
|
"True if the kqueue handler is closed"},
|
|
{0},
|
|
};
|
|
|
|
#endif /* HAVE_KQUEUE */
|
|
|
|
|
|
/* ************************************************************************ */
|
|
|
|
#include "clinic/selectmodule.c.h"
|
|
|
|
#if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
|
|
|
|
static PyMethodDef poll_methods[] = {
|
|
SELECT_POLL_REGISTER_METHODDEF
|
|
SELECT_POLL_MODIFY_METHODDEF
|
|
SELECT_POLL_UNREGISTER_METHODDEF
|
|
SELECT_POLL_POLL_METHODDEF
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
|
|
static PyType_Slot poll_Type_slots[] = {
|
|
{Py_tp_dealloc, poll_dealloc},
|
|
{Py_tp_methods, poll_methods},
|
|
{0, 0},
|
|
};
|
|
|
|
static PyType_Spec poll_Type_spec = {
|
|
.name = "select.poll",
|
|
.basicsize = sizeof(pollObject),
|
|
.flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_DISALLOW_INSTANTIATION,
|
|
.slots = poll_Type_slots,
|
|
};
|
|
|
|
#ifdef HAVE_SYS_DEVPOLL_H
|
|
|
|
static PyMethodDef devpoll_methods[] = {
|
|
SELECT_DEVPOLL_REGISTER_METHODDEF
|
|
SELECT_DEVPOLL_MODIFY_METHODDEF
|
|
SELECT_DEVPOLL_UNREGISTER_METHODDEF
|
|
SELECT_DEVPOLL_POLL_METHODDEF
|
|
SELECT_DEVPOLL_CLOSE_METHODDEF
|
|
SELECT_DEVPOLL_FILENO_METHODDEF
|
|
{NULL, NULL} /* sentinel */
|
|
};
|
|
|
|
#endif /* HAVE_SYS_DEVPOLL_H */
|
|
|
|
#endif /* HAVE_POLL */
|
|
|
|
#ifdef HAVE_EPOLL
|
|
|
|
static PyMethodDef pyepoll_methods[] = {
|
|
SELECT_EPOLL_FROMFD_METHODDEF
|
|
SELECT_EPOLL_CLOSE_METHODDEF
|
|
SELECT_EPOLL_FILENO_METHODDEF
|
|
SELECT_EPOLL_MODIFY_METHODDEF
|
|
SELECT_EPOLL_REGISTER_METHODDEF
|
|
SELECT_EPOLL_UNREGISTER_METHODDEF
|
|
SELECT_EPOLL_POLL_METHODDEF
|
|
SELECT_EPOLL___ENTER___METHODDEF
|
|
SELECT_EPOLL___EXIT___METHODDEF
|
|
{NULL, NULL},
|
|
};
|
|
|
|
static PyType_Slot pyEpoll_Type_slots[] = {
|
|
{Py_tp_dealloc, pyepoll_dealloc},
|
|
{Py_tp_doc, (void*)pyepoll_doc},
|
|
{Py_tp_getattro, PyObject_GenericGetAttr},
|
|
{Py_tp_getset, pyepoll_getsetlist},
|
|
{Py_tp_methods, pyepoll_methods},
|
|
{Py_tp_new, select_epoll},
|
|
{0, 0},
|
|
};
|
|
|
|
static PyType_Spec pyEpoll_Type_spec = {
|
|
"select.epoll",
|
|
sizeof(pyEpoll_Object),
|
|
0,
|
|
Py_TPFLAGS_DEFAULT,
|
|
pyEpoll_Type_slots
|
|
};
|
|
|
|
#endif /* HAVE_EPOLL */
|
|
|
|
#ifdef HAVE_KQUEUE
|
|
|
|
static PyMethodDef kqueue_queue_methods[] = {
|
|
SELECT_KQUEUE_FROMFD_METHODDEF
|
|
SELECT_KQUEUE_CLOSE_METHODDEF
|
|
SELECT_KQUEUE_FILENO_METHODDEF
|
|
SELECT_KQUEUE_CONTROL_METHODDEF
|
|
{NULL, NULL},
|
|
};
|
|
|
|
static PyType_Slot kqueue_queue_Type_slots[] = {
|
|
{Py_tp_dealloc, kqueue_queue_dealloc},
|
|
{Py_tp_doc, (void*)select_kqueue__doc__},
|
|
{Py_tp_getset, kqueue_queue_getsetlist},
|
|
{Py_tp_methods, kqueue_queue_methods},
|
|
{Py_tp_new, select_kqueue},
|
|
{0, 0},
|
|
};
|
|
|
|
static PyType_Spec kqueue_queue_Type_spec = {
|
|
"select.kqueue",
|
|
sizeof(kqueue_queue_Object),
|
|
0,
|
|
Py_TPFLAGS_DEFAULT,
|
|
kqueue_queue_Type_slots
|
|
};
|
|
|
|
#endif /* HAVE_KQUEUE */
|
|
|
|
|
|
|
|
|
|
|
|
/* ************************************************************************ */
|
|
|
|
|
|
static PyMethodDef select_methods[] = {
|
|
SELECT_SELECT_METHODDEF
|
|
SELECT_POLL_METHODDEF
|
|
SELECT_DEVPOLL_METHODDEF
|
|
{0, 0}, /* sentinel */
|
|
};
|
|
|
|
PyDoc_STRVAR(module_doc,
|
|
"This module supports asynchronous I/O on multiple file descriptors.\n\
|
|
\n\
|
|
*** IMPORTANT NOTICE ***\n\
|
|
On Windows, only sockets are supported; on Unix, all file descriptors.");
|
|
|
|
|
|
|
|
static int
|
|
_select_traverse(PyObject *module, visitproc visit, void *arg)
|
|
{
|
|
_selectstate *state = get_select_state(module);
|
|
|
|
Py_VISIT(state->close);
|
|
Py_VISIT(state->poll_Type);
|
|
Py_VISIT(state->devpoll_Type);
|
|
Py_VISIT(state->pyEpoll_Type);
|
|
Py_VISIT(state->kqueue_event_Type);
|
|
Py_VISIT(state->kqueue_queue_Type);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
_select_clear(PyObject *module)
|
|
{
|
|
_selectstate *state = get_select_state(module);
|
|
|
|
Py_CLEAR(state->close);
|
|
Py_CLEAR(state->poll_Type);
|
|
Py_CLEAR(state->devpoll_Type);
|
|
Py_CLEAR(state->pyEpoll_Type);
|
|
Py_CLEAR(state->kqueue_event_Type);
|
|
Py_CLEAR(state->kqueue_queue_Type);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
_select_free(void *module)
|
|
{
|
|
_select_clear((PyObject *)module);
|
|
}
|
|
|
|
int
|
|
_select_exec(PyObject *m)
|
|
{
|
|
_selectstate *state = get_select_state(m);
|
|
|
|
state->close = PyUnicode_InternFromString("close");
|
|
if (state->close == NULL) {
|
|
return -1;
|
|
}
|
|
if (PyModule_AddObjectRef(m, "error", PyExc_OSError) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
#ifdef PIPE_BUF
|
|
#ifdef HAVE_BROKEN_PIPE_BUF
|
|
#undef PIPE_BUF
|
|
#define PIPE_BUF 512
|
|
#endif
|
|
PyModule_AddIntMacro(m, PIPE_BUF);
|
|
#endif
|
|
|
|
#if defined(HAVE_POLL) && !defined(HAVE_BROKEN_POLL)
|
|
#ifdef __APPLE__
|
|
if (select_have_broken_poll()) {
|
|
if (PyObject_DelAttrString(m, "poll") == -1) {
|
|
PyErr_Clear();
|
|
}
|
|
} else {
|
|
#else
|
|
{
|
|
#endif
|
|
state->poll_Type = (PyTypeObject *)PyType_FromModuleAndSpec(
|
|
m, &poll_Type_spec, NULL);
|
|
if (state->poll_Type == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
PyModule_AddIntMacro(m, POLLIN);
|
|
PyModule_AddIntMacro(m, POLLPRI);
|
|
PyModule_AddIntMacro(m, POLLOUT);
|
|
PyModule_AddIntMacro(m, POLLERR);
|
|
PyModule_AddIntMacro(m, POLLHUP);
|
|
PyModule_AddIntMacro(m, POLLNVAL);
|
|
|
|
#ifdef POLLRDNORM
|
|
PyModule_AddIntMacro(m, POLLRDNORM);
|
|
#endif
|
|
#ifdef POLLRDBAND
|
|
PyModule_AddIntMacro(m, POLLRDBAND);
|
|
#endif
|
|
#ifdef POLLWRNORM
|
|
PyModule_AddIntMacro(m, POLLWRNORM);
|
|
#endif
|
|
#ifdef POLLWRBAND
|
|
PyModule_AddIntMacro(m, POLLWRBAND);
|
|
#endif
|
|
#ifdef POLLMSG
|
|
PyModule_AddIntMacro(m, POLLMSG);
|
|
#endif
|
|
#ifdef POLLRDHUP
|
|
/* Kernel 2.6.17+ */
|
|
PyModule_AddIntMacro(m, POLLRDHUP);
|
|
#endif
|
|
}
|
|
#endif /* HAVE_POLL */
|
|
|
|
#ifdef HAVE_SYS_DEVPOLL_H
|
|
state->devpoll_Type = (PyTypeObject *)PyType_FromModuleAndSpec(
|
|
m, &devpoll_Type_spec, NULL);
|
|
if (state->devpoll_Type == NULL) {
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
#ifdef HAVE_EPOLL
|
|
state->pyEpoll_Type = (PyTypeObject *)PyType_FromModuleAndSpec(
|
|
m, &pyEpoll_Type_spec, NULL);
|
|
if (state->pyEpoll_Type == NULL) {
|
|
return -1;
|
|
}
|
|
if (PyModule_AddType(m, state->pyEpoll_Type) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
PyModule_AddIntMacro(m, EPOLLIN);
|
|
PyModule_AddIntMacro(m, EPOLLOUT);
|
|
PyModule_AddIntMacro(m, EPOLLPRI);
|
|
PyModule_AddIntMacro(m, EPOLLERR);
|
|
PyModule_AddIntMacro(m, EPOLLHUP);
|
|
#ifdef EPOLLRDHUP
|
|
/* Kernel 2.6.17 */
|
|
PyModule_AddIntMacro(m, EPOLLRDHUP);
|
|
#endif
|
|
PyModule_AddIntMacro(m, EPOLLET);
|
|
#ifdef EPOLLONESHOT
|
|
/* Kernel 2.6.2+ */
|
|
PyModule_AddIntMacro(m, EPOLLONESHOT);
|
|
#endif
|
|
#ifdef EPOLLEXCLUSIVE
|
|
PyModule_AddIntMacro(m, EPOLLEXCLUSIVE);
|
|
#endif
|
|
|
|
#ifdef EPOLLRDNORM
|
|
PyModule_AddIntMacro(m, EPOLLRDNORM);
|
|
#endif
|
|
#ifdef EPOLLRDBAND
|
|
PyModule_AddIntMacro(m, EPOLLRDBAND);
|
|
#endif
|
|
#ifdef EPOLLWRNORM
|
|
PyModule_AddIntMacro(m, EPOLLWRNORM);
|
|
#endif
|
|
#ifdef EPOLLWRBAND
|
|
PyModule_AddIntMacro(m, EPOLLWRBAND);
|
|
#endif
|
|
#ifdef EPOLLMSG
|
|
PyModule_AddIntMacro(m, EPOLLMSG);
|
|
#endif
|
|
|
|
#ifdef EPOLL_CLOEXEC
|
|
PyModule_AddIntMacro(m, EPOLL_CLOEXEC);
|
|
#endif
|
|
#endif /* HAVE_EPOLL */
|
|
|
|
#ifdef HAVE_KQUEUE
|
|
state->kqueue_event_Type = (PyTypeObject *)PyType_FromModuleAndSpec(
|
|
m, &kqueue_event_Type_spec, NULL);
|
|
if (state->kqueue_event_Type == NULL) {
|
|
return -1;
|
|
}
|
|
if (PyModule_AddType(m, state->kqueue_event_Type) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
state->kqueue_queue_Type = (PyTypeObject *)PyType_FromModuleAndSpec(
|
|
m, &kqueue_queue_Type_spec, NULL);
|
|
if (state->kqueue_queue_Type == NULL) {
|
|
return -1;
|
|
}
|
|
if (PyModule_AddType(m, state->kqueue_queue_Type) < 0) {
|
|
return -1;
|
|
}
|
|
|
|
/* event filters */
|
|
PyModule_AddIntConstant(m, "KQ_FILTER_READ", EVFILT_READ);
|
|
PyModule_AddIntConstant(m, "KQ_FILTER_WRITE", EVFILT_WRITE);
|
|
#ifdef EVFILT_AIO
|
|
PyModule_AddIntConstant(m, "KQ_FILTER_AIO", EVFILT_AIO);
|
|
#endif
|
|
#ifdef EVFILT_VNODE
|
|
PyModule_AddIntConstant(m, "KQ_FILTER_VNODE", EVFILT_VNODE);
|
|
#endif
|
|
#ifdef EVFILT_PROC
|
|
PyModule_AddIntConstant(m, "KQ_FILTER_PROC", EVFILT_PROC);
|
|
#endif
|
|
#ifdef EVFILT_NETDEV
|
|
PyModule_AddIntConstant(m, "KQ_FILTER_NETDEV", EVFILT_NETDEV);
|
|
#endif
|
|
#ifdef EVFILT_SIGNAL
|
|
PyModule_AddIntConstant(m, "KQ_FILTER_SIGNAL", EVFILT_SIGNAL);
|
|
#endif
|
|
PyModule_AddIntConstant(m, "KQ_FILTER_TIMER", EVFILT_TIMER);
|
|
|
|
/* event flags */
|
|
PyModule_AddIntConstant(m, "KQ_EV_ADD", EV_ADD);
|
|
PyModule_AddIntConstant(m, "KQ_EV_DELETE", EV_DELETE);
|
|
PyModule_AddIntConstant(m, "KQ_EV_ENABLE", EV_ENABLE);
|
|
PyModule_AddIntConstant(m, "KQ_EV_DISABLE", EV_DISABLE);
|
|
PyModule_AddIntConstant(m, "KQ_EV_ONESHOT", EV_ONESHOT);
|
|
PyModule_AddIntConstant(m, "KQ_EV_CLEAR", EV_CLEAR);
|
|
|
|
#ifdef EV_SYSFLAGS
|
|
PyModule_AddIntConstant(m, "KQ_EV_SYSFLAGS", EV_SYSFLAGS);
|
|
#endif
|
|
#ifdef EV_FLAG1
|
|
PyModule_AddIntConstant(m, "KQ_EV_FLAG1", EV_FLAG1);
|
|
#endif
|
|
|
|
PyModule_AddIntConstant(m, "KQ_EV_EOF", EV_EOF);
|
|
PyModule_AddIntConstant(m, "KQ_EV_ERROR", EV_ERROR);
|
|
|
|
/* READ WRITE filter flag */
|
|
#ifdef NOTE_LOWAT
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_LOWAT", NOTE_LOWAT);
|
|
#endif
|
|
|
|
/* VNODE filter flags */
|
|
#ifdef EVFILT_VNODE
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_DELETE", NOTE_DELETE);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_WRITE", NOTE_WRITE);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_EXTEND", NOTE_EXTEND);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_ATTRIB", NOTE_ATTRIB);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_LINK", NOTE_LINK);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_RENAME", NOTE_RENAME);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_REVOKE", NOTE_REVOKE);
|
|
#endif
|
|
|
|
/* PROC filter flags */
|
|
#ifdef EVFILT_PROC
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_EXIT", NOTE_EXIT);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_FORK", NOTE_FORK);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_EXEC", NOTE_EXEC);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_PCTRLMASK", NOTE_PCTRLMASK);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_PDATAMASK", NOTE_PDATAMASK);
|
|
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_TRACK", NOTE_TRACK);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_CHILD", NOTE_CHILD);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_TRACKERR", NOTE_TRACKERR);
|
|
#endif
|
|
|
|
/* NETDEV filter flags */
|
|
#ifdef EVFILT_NETDEV
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_LINKUP", NOTE_LINKUP);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_LINKDOWN", NOTE_LINKDOWN);
|
|
PyModule_AddIntConstant(m, "KQ_NOTE_LINKINV", NOTE_LINKINV);
|
|
#endif
|
|
|
|
#endif /* HAVE_KQUEUE */
|
|
return 0;
|
|
}
|
|
|
|
static PyModuleDef_Slot _select_slots[] = {
|
|
{Py_mod_exec, _select_exec},
|
|
{0, NULL}
|
|
};
|
|
|
|
static struct PyModuleDef selectmodule = {
|
|
PyModuleDef_HEAD_INIT,
|
|
.m_name = "select",
|
|
.m_doc = module_doc,
|
|
.m_size = sizeof(_selectstate),
|
|
.m_methods = select_methods,
|
|
.m_slots = _select_slots,
|
|
.m_traverse = _select_traverse,
|
|
.m_clear = _select_clear,
|
|
.m_free = _select_free,
|
|
};
|
|
|
|
PyMODINIT_FUNC
|
|
PyInit_select(void)
|
|
{
|
|
return PyModuleDef_Init(&selectmodule);
|
|
}
|