spielwiese
Last change
on this file since 1101a8 was
1101a8,
checked in by Andreas Steenpass <steenpass@…>, 10 years ago
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add: create Singular/rlimit.{c,h} for setting resource limits
(cherry picked from commit 88e216d8bea3cefdff011bacb24458c88bd1eb32)
Signed-off-by: Andreas Steenpass <steenpass@mathematik.uni-kl.de>
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-
Property mode set to
100644
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File size:
1.1 KB
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1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /*************************************************************** |
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5 | * File: rlimit.c |
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6 | * Purpose: set resource limits |
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7 | ***************************************************************/ |
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8 | |
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9 | #include <sys/resource.h> |
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10 | |
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11 | #include "rlimit.h" |
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12 | |
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13 | /* raise the maximum number of processes (or threads), |
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14 | * return 0 on success, |
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15 | * -1 on error |
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16 | */ |
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17 | int raise_rlimit_nproc() |
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18 | { |
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19 | #ifdef RLIMIT_NPROC |
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20 | struct rlimit nproc; |
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21 | getrlimit(RLIMIT_NPROC, &nproc); |
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22 | if (nproc.rlim_cur == RLIM_INFINITY |
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23 | || (nproc.rlim_max != RLIM_INFINITY && nproc.rlim_cur >= nproc.rlim_max)) |
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24 | { |
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25 | return(-1); |
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26 | } |
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27 | if (nproc.rlim_cur < 512) |
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28 | { |
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29 | nproc.rlim_cur = 512; |
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30 | } |
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31 | if ((nproc.rlim_max == RLIM_INFINITY || 2*nproc.rlim_cur <= nproc.rlim_max) |
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32 | && nproc.rlim_cur < 2*nproc.rlim_cur) |
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33 | { |
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34 | nproc.rlim_cur = 2*nproc.rlim_cur; |
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35 | } |
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36 | else |
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37 | { |
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38 | nproc.rlim_cur = nproc.rlim_max; |
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39 | } |
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40 | int res = setrlimit(RLIMIT_NPROC, &nproc); |
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41 | return(res); |
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42 | #else |
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43 | return(-1); |
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44 | #endif |
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45 | } |
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