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authorbecquet2007-05-10 18:49:20 +0000
committerbecquet2007-05-10 18:49:20 +0000
commit8f486613be58ced269db1d437e560c16558604e8 (patch)
tree41e94b2122a118cb06abf6fc2a0038cd1dfbec4a /i/chuck/src/utils/fd_set.cc
parent4daa2c76c2a028e4b2c8ab379e7d1e0f535a0a31 (diff)
Création de chuck, le programme du robot 2007.
Diffstat (limited to 'i/chuck/src/utils/fd_set.cc')
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1 files changed, 53 insertions, 0 deletions
diff --git a/i/chuck/src/utils/fd_set.cc b/i/chuck/src/utils/fd_set.cc
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+++ b/i/chuck/src/utils/fd_set.cc
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+// fd_set.cc
+// robert - programme du robot 2005. {{{
+//
+// Copyright (C) 2005 Nicolas Schodet
+//
+// Robot APB Team/Efrei 2005.
+// Web: http://assos.efrei.fr/robot/
+// Email: robot AT efrei DOT fr
+//
+// This program 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.
+//
+// This program 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 this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// }}}
+#include "fd_set.hh"
+#include "utils/errno_exception.hh"
+
+/// Wait for an read event or timeout in milliseconds, return true on read
+/// event.
+bool
+FdSet::wait (int timeout/*-1*/)
+{
+ int r;
+ if (timeout == -1)
+ {
+ // Without timeout.
+ r = select (FD_SETSIZE, get (), 0, 0, 0);
+ }
+ else
+ {
+ // With timeout.
+ struct timeval tv;
+ tv.tv_sec = timeout / 1000;
+ tv.tv_usec = (timeout % 1000) * 1000;
+ r = select (FD_SETSIZE, get (), 0, 0, &tv);
+ }
+ if (r == -1)
+ // Error.
+ throw errno_exception (errno);
+ else
+ return r != 0;
+}
+