ladybird/Userland/Libraries/LibC/fd_set.h
Andreas Kling e8512b8cd7 LibC: Bump FD_SETSIZE to 1024
64 was cutting it pretty close, especially now as we start using file
descriptor passing more and more.

This (1024) matches many other systems, and if we need more there's
always sys$poll().
2021-01-16 11:26:53 +01:00

40 lines
1.8 KiB
C

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#define FD_SETSIZE 1024
#define FD_ZERO(set) memset((set), 0, sizeof(fd_set));
#define FD_CLR(fd, set) ((set)->bits[(fd / 8)] &= ~(1 << (fd) % 8))
#define FD_SET(fd, set) ((set)->bits[(fd / 8)] |= (1 << (fd) % 8))
#define FD_ISSET(fd, set) ((set)->bits[(fd / 8)] & (1 << (fd) % 8))
struct __fd_set {
unsigned char bits[FD_SETSIZE / 8];
};
typedef struct __fd_set fd_set;