35 lines
1.4 KiB
C++
35 lines
1.4 KiB
C++
// src/select.hh
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// This file is part of libpbe; see http://decimail.org
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// (C) 2004 Philip Endecott
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#ifndef libpbe_select_hh
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#define libpbe_select_hh
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// User-friendly wrappers around select().
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// Take various numbers of file descriptors and an optional timeout.
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// Naming scheme is "r" for "readable", "t" for "timeout".
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// i.e. select_rr waits for either of two fds to be readable.
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// The return value is the file descriptor that has become useable,
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// i.e. select_rr(4,9) can return 4 or 9. If the timeout expires,
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// -1 is returned. -2 can also be returned but I can't recall when.
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int select_r (int fd1);
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int select_rr(int fd1, int fd2);
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int select_rt(int fd1, float timeout);
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#endif
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