Feature #11952 ยป 0001-Use-getrusage-for-Process.times-if-available.patch
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VALUE
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rb_proc_times(VALUE obj)
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{
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VALUE utime, stime, cutime, cstime, ret;
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#if defined(RUSAGE_SELF) && defined(RUSAGE_CHILDREN)
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struct rusage usage_s, usage_c;
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if (getrusage(RUSAGE_SELF, &usage_s) != 0 || getrusage(RUSAGE_CHILDREN, &usage_c) != 0)
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rb_sys_fail("getrusage");
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utime = DBL2NUM((double)usage_s.ru_utime.tv_sec + (double)usage_s.ru_utime.tv_usec/1e6);
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stime = DBL2NUM((double)usage_s.ru_stime.tv_sec + (double)usage_s.ru_stime.tv_usec/1e6);
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cutime = DBL2NUM((double)usage_c.ru_utime.tv_sec + (double)usage_c.ru_utime.tv_usec/1e6);
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cstime = DBL2NUM((double)usage_c.ru_stime.tv_sec + (double)usage_c.ru_stime.tv_usec/1e6);
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#else
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const double hertz = get_clk_tck();
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struct tms buf;
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VALUE utime, stime, cutime, cstime, ret;
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times(&buf);
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utime = DBL2NUM(buf.tms_utime / hertz);
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stime = DBL2NUM(buf.tms_stime / hertz);
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cutime = DBL2NUM(buf.tms_cutime / hertz);
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cstime = DBL2NUM(buf.tms_cstime / hertz);
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#endif
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ret = rb_struct_new(rb_cProcessTms, utime, stime, cutime, cstime);
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RB_GC_GUARD(utime);
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RB_GC_GUARD(stime);
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