Remove third_party/twisted_8_1

third_party/twisted_8_1/twisted/python/_epoll.pyx

-# Copyright (c) 2001-2006 Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-"""
-Interface to epoll I/O event notification facility.
-"""
-
-# NOTE: The version of Pyrex you are using probably _does not work_ with
-# Python 2.5.  If you need to recompile this file, _make sure you are using
-# a version of Pyrex which works with Python 2.5_.  I am using 0.9.4.1 from
-# <http://codespeak.net/svn/lxml/pyrex/>. -exarkun
-
-cdef extern from "stdio.h":
-    cdef extern void *malloc(int)
-    cdef extern void free(void *)
-    cdef extern int close(int)
-
-cdef extern from "errno.h":
-    cdef extern int errno
-    cdef extern char *strerror(int)
-
-cdef extern from "string.h":
-    cdef extern void *memset(void* s, int c, int n)
-
-cdef extern from "stdint.h":
-    ctypedef unsigned long uint32_t
-    ctypedef unsigned long long uint64_t
-
-cdef extern from "sys/epoll.h":
-
-    cdef enum:
-        EPOLL_CTL_ADD = 1
-        EPOLL_CTL_DEL = 2
-        EPOLL_CTL_MOD = 3
-
-    cdef enum EPOLL_EVENTS:
-        EPOLLIN = 0x001
-        EPOLLPRI = 0x002
-        EPOLLOUT = 0x004
-        EPOLLRDNORM = 0x040
-        EPOLLRDBAND = 0x080
-        EPOLLWRNORM = 0x100
-        EPOLLWRBAND = 0x200
-        EPOLLMSG = 0x400
-        EPOLLERR = 0x008
-        EPOLLHUP = 0x010
-        EPOLLET = (1 << 31)
-
-    ctypedef union epoll_data_t:
-        void *ptr
-        int fd
-        uint32_t u32
-        uint64_t u64
-
-    cdef struct epoll_event:
-        uint32_t events
-        epoll_data_t data
-
-    int epoll_create(int size)
-    int epoll_ctl(int epfd, int op, int fd, epoll_event *event)
-    int epoll_wait(int epfd, epoll_event *events, int maxevents, int timeout)
-
-cdef extern from "Python.h":
-    ctypedef struct PyThreadState
-    cdef extern PyThreadState *PyEval_SaveThread()
-    cdef extern void PyEval_RestoreThread(PyThreadState*)
-
-cdef class epoll:
-    """
-    Represent a set of file descriptors being monitored for events.
-    """
-
-    cdef int fd
-    cdef int initialized
-
-    def __init__(self, int size):
-        self.fd = epoll_create(size)
-        if self.fd == -1:
-            raise IOError(errno, strerror(errno))
-        self.initialized = 1
-
-    def __dealloc__(self):
-        if self.initialized:
-            close(self.fd)
-            self.initialized = 0
-
-    def close(self):
-        """
-        Close the epoll file descriptor.
-        """
-        if self.initialized:
-            if close(self.fd) == -1:
-                raise IOError(errno, strerror(errno))
-            self.initialized = 0
-
-    def fileno(self):
-        """
-        Return the epoll file descriptor number.
-        """
-        return self.fd
-
-    def _control(self, int op, int fd, int events):
-        """
-        Modify the monitored state of a particular file descriptor.
-        
-        Wrap epoll_ctl(2).
-
-        @type op: C{int}
-        @param op: One of CTL_ADD, CTL_DEL, or CTL_MOD
-
-        @type fd: C{int}
-        @param fd: File descriptor to modify
-
-        @type events: C{int}
-        @param events: A bit set of IN, OUT, PRI, ERR, HUP, and ET.
-
-        @raise IOError: Raised if the underlying epoll_ctl() call fails.
-        """
-        cdef int result
-        cdef epoll_event evt
-        evt.events = events
-        evt.data.fd = fd
-        result = epoll_ctl(self.fd, op, fd, &evt)
-        if result == -1:
-            raise IOError(errno, strerror(errno))
-
-    def wait(self, unsigned int maxevents, int timeout):
-        """
-        Wait for an I/O event, wrap epoll_wait(2).
-
-        @type maxevents: C{int}
-        @param maxevents: Maximum number of events returned.
-
-        @type timeout: C{int}
-        @param timeout: Maximum time waiting for events. 0 makes it return
-            immediately whereas -1 makes it wait indefinitely.
-        
-        @raise IOError: Raised if the underlying epoll_wait() call fails.
-        """
-        cdef epoll_event *events
-        cdef int result
-        cdef int nbytes
-        cdef int fd
-        cdef PyThreadState *_save
-
-        nbytes = sizeof(epoll_event) * maxevents
-        events = <epoll_event*>malloc(nbytes)
-        memset(events, 0, nbytes)
-        try:
-            fd = self.fd
-
-            _save = PyEval_SaveThread()
-            result = epoll_wait(fd, events, maxevents, timeout)
-            PyEval_RestoreThread(_save)
-
-            if result == -1:
-                raise IOError(errno, strerror(errno))
-            results = []
-            for i from 0 <= i < result:
-                results.append((events[i].data.fd, <int>events[i].events))
-            return results
-        finally:
-            free(events)
-
-CTL_ADD = EPOLL_CTL_ADD
-CTL_DEL = EPOLL_CTL_DEL
-CTL_MOD = EPOLL_CTL_MOD
-
-IN = EPOLLIN
-OUT = EPOLLOUT
-PRI = EPOLLPRI
-ERR = EPOLLERR
-HUP = EPOLLHUP
-ET = EPOLLET
-
-RDNORM = EPOLLRDNORM
-RDBAND = EPOLLRDBAND
-WRNORM = EPOLLWRNORM
-WRBAND = EPOLLWRBAND
-MSG = EPOLLMSG
-