mirror of https://github.com/trapexit/mergerfs.git
80 lines
1.7 KiB
C++
80 lines
1.7 KiB
C++
/*
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Copyright (c) 2016, Antonio SJ Musumeci <trapexit@spawn.link>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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namespace resources
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{
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int
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reset_umask(void)
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{
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umask(0);
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return 0;
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}
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int
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maxout_rlimit(const int resource)
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{
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int rv;
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struct rlimit rlim;
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rlim.rlim_cur = RLIM_INFINITY;
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rlim.rlim_max = RLIM_INFINITY;
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rv = ::setrlimit(resource,&rlim);
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if(rv == 0)
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return 0;
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rv = ::getrlimit(resource,&rlim);
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if(rv == -1)
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return -1;
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rv = 0;
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rlim.rlim_cur = rlim.rlim_max;
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while(rv == 0)
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{
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rv = ::setrlimit(resource,&rlim);
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rlim.rlim_max *= 2;
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rlim.rlim_cur = rlim.rlim_max;
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}
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return rv;
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}
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int
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maxout_rlimit_nofile(void)
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{
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return maxout_rlimit(RLIMIT_NOFILE);
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}
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int
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maxout_rlimit_fsize(void)
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{
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return maxout_rlimit(RLIMIT_FSIZE);
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}
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int
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setpriority(const int prio)
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{
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const int SELF = 0;
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return ::setpriority(PRIO_PROCESS,SELF,prio);
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}
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}
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