mirror of
https://github.com/tstack/lnav
synced 2024-11-01 21:40:34 +00:00
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/**
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* Copyright (c) 2007-2012, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "base/auto_fd.hh"
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void
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foo(int* fd)
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{
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*fd = 2;
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}
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int
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main(int argc, char* argv[])
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{
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{
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auto_fd fd(open("/dev/null", O_WRONLY));
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auto_fd fd2;
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printf("1 fd %d\n", fd.get());
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fd = -1;
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printf("2 fd %d\n", fd.get());
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fd = open("/dev/null", O_WRONLY);
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fd2 = fd;
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printf("3 fd %d\n", fd.get());
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printf("4 fd2 %d\n", fd2.get());
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foo(fd2.out());
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printf("5 fd2 %d\n", fd2.get());
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}
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printf("nfd %d\n", open("/dev/null", O_WRONLY));
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}
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