General reorganization.

[mLib-python] / bres.pyx

diff --git a/bres.pyx b/bres.pyx
new file mode 100644 (file)
index 0000000..162ff02
--- /dev/null
+++ b/bres.pyx
@@ -0,0 +1,114 @@
+# -*-pyrex-*-
+#
+# $Id$
+#
+# Background name resolution
+#
+# (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.
+
+cdef class SelResolve:
+  cdef bres_client r
+  cdef int _activep
+  cdef _resolved
+  cdef _failed
+  def __init__(me, *hunoz, **hukairz):
+    raise TypeError, 'abstract class'
+  property activep:
+    def __get__(me):
+      return _tobool(me._activep)
+  def kill(me):
+    if not me._activep:
+      raise ValueError, 'already dead'
+    me._dead()
+    bres_abort(&me.r)
+    return me
+  cdef _dead(me):
+    me._activep = 0
+    me.dead()
+  def dead(me):
+    pass
+  property resolvedproc:
+    def __get__(me):
+      return me._resolved
+    def __set__(me, proc):
+      me._resolved = _checkcallable(proc, 'resolved proc')
+    def __del__(me):
+      me._resolved = None
+  property failedproc:
+    def __get__(me):
+      return me._failed
+    def __set__(me, proc):
+      me._failed = _checkcallable(proc, 'failed proc')
+    def __del__(me):
+      me._failed = None
+  def resolved(me, name, aliases, addrs):
+    return _maybecall(me._resolved, (name, aliases, addrs))
+  def failed(me):
+    return _maybecall(me._failed, ())
+
+cdef class SelResolveByName (SelResolve):
+  def __new__(me, char *name, resolvedproc = None, failedproc = None,
+              *hunoz, **hukairz):
+    bres_byname(&me.r, name, _resfunc, <void *>me)
+    me._resolved = _checkcallable(resolvedproc, 'resolved proc')
+    me._failed = _checkcallable(failedproc, 'failed proc')
+    me._activep = 1
+  def __init__(me, name, resolvedproc = None, failedproc = None):
+    pass
+
+cdef class SelResolveByAddr (SelResolve):
+  def __new__(me, char *addr, resolvedproc = None, failedproc = None,
+              *hunoz, **hukairz):
+    cdef in_addr ia
+    if not inet_aton(addr, &ia):
+      raise TypeError, 'bad IP address'
+    bres_byaddr(&me.r, ia, _resfunc, <void *>me)
+    me._resolved = _checkcallable(resolvedproc, 'resolved proc')
+    me._failed = _checkcallable(failedproc, 'failed proc')
+    me._activep = 1
+  def __init__(me, addr, resolvedproc = None, failedproc = None):
+    pass
+
+cdef void _resfunc(hostent *h, void *arg):
+  cdef SelResolve r
+  cdef int i
+  r = <SelResolve>arg
+  r._dead()
+  if h is NULL:
+    r.failed(r)
+  else:
+    alias = []
+    addr = []
+    i = 0
+    while h.h_aliases[i]:
+      alias.append(h.h_aliases[i])
+      i = i + 1
+    i = 0
+    while h.h_addr_list[i]:
+      addr.append(inet_ntoa((<in_addr *>h.h_addr_list[i])[0]))
+      i = i + 1
+    r.resolved(h.h_name, alias, addr)
+
+bres_exec(NULL)
+bres_init(&_sel)
+
+#----- That's all, folks ----------------------------------------------------