General reorganization.

[mLib-python] / sel-file.pyx

diff --git a/sel-file.pyx b/sel-file.pyx
new file mode 100644 (file)
index 0000000..72ff166
--- /dev/null
+++ b/sel-file.pyx
@@ -0,0 +1,96 @@
+# -*-pyrex-*-
+#
+# $Id$
+#
+# File selectors
+#
+# (c) 2005 Straylight/Edgeware
+#
+
+#----- Licensing notice -----------------------------------------------------
+#
+# This file is part of the Python interface to mLib.
+#
+# mLib/Python is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+# 
+# mLib/Python is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with mLib/Python; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+SEL_READ = _SEL_READ
+SEL_WRITE = _SEL_WRITE
+SEL_EXCEPT = _SEL_EXC
+
+cdef class SelFile:
+  cdef sel_file f
+  cdef int _activep
+  cdef readonly unsigned mode
+  cdef _readyfunc
+  def __new__(me, fd, int mode = SEL_READ, readyproc = None,
+              *hunoz, **hukairz):
+    if (mode != _SEL_READ and
+        mode != _SEL_WRITE and
+        mode != _SEL_EXC):
+      raise ValueError, 'bad select mode'
+    sel_initfile(&_sel, &me.f, _getfd(fd), mode, _filefunc, <void *>me)
+    me._activep = 0
+    me.mode = mode
+    me._ready = _checkcallable(readyproc, 'ready proc')
+  def __dealloc__(me):
+    if me._activep:
+      sel_rmfile(&me.f)
+  property fd:
+    def __get__(me):
+      return me.f.fd
+  property activep:
+    def __get__(me):
+      return _tobool(me._activep)
+  property readyproc:
+    def __get__(me):
+      return me._ready
+    def __set__(me, proc):
+      me._ready = _checkcallable(proc, 'ready proc')
+    def __del__(me):
+      me._ready = None
+  def enable(me):
+    if me._activep:
+      raise ValueError, 'already enabled'
+    sel_addfile(&me.f)
+    me._enabled()
+    return me
+  def disable(me):
+    if not me._activep:
+      raise ValueError, 'already disabled'
+    sel_rmfile(&me.f)
+    me._disabled()
+    return me
+  def force(me):
+    sel_force(&me.f)
+    return me
+  cdef _enabled(me):
+    me._activep = 1
+    me.enabled()
+  cdef _disabled(me):
+    me._activep = 0
+    me.disabled()
+  def enabled(me):
+    pass
+  def disabled(me):
+    pass
+  def ready(me):
+    return _maybecall(me._ready, ())
+
+cdef void _filefunc(int fd, unsigned mode, void *arg):
+  cdef SelFile sf
+  sf = <SelFile>arg
+  sf.ready()
+
+#----- That's all, folks ----------------------------------------------------