summaryrefslogtreecommitdiffstats
path: root/network/akgnet_selector.cc
diff options
context:
space:
mode:
Diffstat (limited to 'network/akgnet_selector.cc')
-rw-r--r--network/akgnet_selector.cc97
1 files changed, 97 insertions, 0 deletions
diff --git a/network/akgnet_selector.cc b/network/akgnet_selector.cc
new file mode 100644
index 0000000..7ad2f64
--- /dev/null
+++ b/network/akgnet_selector.cc
@@ -0,0 +1,97 @@
+/*
+* This file is part of rasdaman community.
+*
+* Rasdaman community 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 3 of the License, or
+* (at your option) any later version.
+*
+* Rasdaman community 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 rasdaman community. If not, see <http://www.gnu.org/licenses/>.
+*
+* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
+rasdaman GmbH.
+*
+* For more information please see <http://www.rasdaman.org>
+* or contact Peter Baumann via <baumann@rasdaman.com>.
+*/
+
+#include "akgnet_selector.hh"
+
+
+akg::Selector::Selector() throw()
+ {
+ FD_ZERO(& watchReadFdSet);
+ FD_ZERO(& watchWriteFdSet);
+ FD_ZERO(& watchExceptFdSet);
+ tvptr = NULL;
+ }
+void akg::Selector::setTimeout(int sec,int milisec) throw()
+ { tvinit.tv_sec=sec;
+ tvinit.tv_usec=milisec;
+ tvptr=&tv; // yes, yes, &tv
+ }
+void akg::Selector::disableTimeout() throw()
+ { tvptr=NULL;
+ }
+void akg::Selector::setRead(int fdescr) throw()
+ {
+ if(fdescr < 0) return;
+ FD_SET(fdescr,&watchReadFdSet);
+ }
+void akg::Selector::clearRead(int fdescr) throw()
+ {
+ if(fdescr < 0) return;
+ FD_CLR(fdescr,&watchReadFdSet);
+ }
+void akg::Selector::setWrite(int fdescr) throw()
+ {
+ if(fdescr < 0) return;
+ FD_SET(fdescr,&watchWriteFdSet);
+ }
+void akg::Selector::clearWrite(int fdescr) throw()
+ {
+ if(fdescr < 0) return;
+ FD_CLR(fdescr,&watchWriteFdSet);
+ }
+
+int akg::Selector::operator()() throw()
+ {
+ resultReadFdSet =watchReadFdSet;
+ resultWriteFdSet=watchWriteFdSet;
+ // error unused
+ // tv has to be reloaded every time; if tvptr is NULL it doesn't matter
+ tv.tv_sec = tvinit.tv_sec;
+ tv.tv_usec = tvinit.tv_usec;
+
+ return select(FD_SETSIZE,&resultReadFdSet,&resultWriteFdSet,NULL,tvptr);
+ }
+
+bool akg::Selector::isRead(int fdescr) throw()
+ {
+ if(fdescr < 0) return false;
+ return FD_ISSET(fdescr,&resultReadFdSet);
+ }
+bool akg::Selector::isWrite(int fdescr) throw()
+ {
+ if(fdescr < 0) return false;
+ return FD_ISSET(fdescr,&resultWriteFdSet);
+ }
+
+void akg::Selector::closeForcedAllFileDescriptors() throw()
+ {
+ for(int i=0;i<FD_SETSIZE;i++)
+ {
+ if(FD_ISSET(i,&watchReadFdSet) || FD_ISSET(i,&watchWriteFdSet))
+ {
+ close(i);
+ }
+ }
+ }
+
+