jengelh-datetimespielwiese
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Last change
on this file since 1f400b was
1f400b,
checked in by Hans Schoenemann <hannes@…>, 9 years ago
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port: freebsd needs uint64_t in rlimit.c
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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 <stdint.h> |
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| 10 | #include <sys/resource.h> |
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| 11 | |
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| 12 | #include "rlimit.h" |
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| 13 | |
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| 14 | /* raise the maximum number of processes (or threads), |
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| 15 | * return 0 on success, |
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| 16 | * -1 on error |
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| 17 | */ |
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| 18 | int raise_rlimit_nproc() |
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| 19 | { |
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| 20 | #ifdef RLIMIT_NPROC |
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| 21 | struct rlimit nproc; |
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| 22 | getrlimit(RLIMIT_NPROC, &nproc); |
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| 23 | if (nproc.rlim_cur == RLIM_INFINITY |
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| 24 | || (nproc.rlim_max != RLIM_INFINITY && nproc.rlim_cur >= nproc.rlim_max)) |
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| 25 | { |
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| 26 | return(-1); |
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| 27 | } |
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| 28 | if (nproc.rlim_cur < 512) |
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| 29 | { |
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| 30 | nproc.rlim_cur = 512; |
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| 31 | } |
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| 32 | if ((nproc.rlim_max == RLIM_INFINITY || 2*nproc.rlim_cur <= nproc.rlim_max) |
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| 33 | && nproc.rlim_cur < 2*nproc.rlim_cur) |
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| 34 | { |
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| 35 | nproc.rlim_cur = 2*nproc.rlim_cur; |
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| 36 | } |
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| 37 | else |
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| 38 | { |
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| 39 | nproc.rlim_cur = nproc.rlim_max; |
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| 40 | } |
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| 41 | int res = setrlimit(RLIMIT_NPROC, &nproc); |
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| 42 | return(res); |
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| 43 | #else |
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| 44 | return(-1); |
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| 45 | #endif |
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| 46 | } |
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