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Diffstat (limited to 'REORG.TODO/bits/poll.h')
-rw-r--r-- | REORG.TODO/bits/poll.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/REORG.TODO/bits/poll.h b/REORG.TODO/bits/poll.h new file mode 100644 index 0000000000..5d114b8ca6 --- /dev/null +++ b/REORG.TODO/bits/poll.h @@ -0,0 +1,42 @@ +/* Copyright (C) 1997-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYS_POLL_H +# error "Never use <bits/poll.h> directly; include <sys/poll.h> instead." +#endif + +/* Event types that can be polled for. These bits may be set in `events' + to indicate the interesting event types; they will appear in `revents' + to indicate the status of the file descriptor. */ +#define POLLIN 01 /* There is data to read. */ +#define POLLPRI 02 /* There is urgent data to read. */ +#define POLLOUT 04 /* Writing now will not block. */ + +#if defined __USE_XOPEN || defined __USE_XOPEN2K8 +/* These values are defined in XPG4.2 and later. */ +# define POLLRDNORM POLLIN /* Normal data may be read. */ +# define POLLRDBAND POLLPRI /* Priority data may be read. */ +# define POLLWRNORM POLLOUT /* Writing now will not block. */ +# define POLLWRBAND POLLOUT /* Priority data may be written. */ +#endif + +/* Event types always implicitly polled for. These bits need not be set in + `events', but they will appear in `revents' to indicate the status of + the file descriptor. */ +#define POLLERR 010 /* Error condition. */ +#define POLLHUP 020 /* Hung up. */ +#define POLLNVAL 040 /* Invalid polling request. */ |