36 lines
513 B
C
36 lines
513 B
C
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#include <sys/types.h>
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#include <paths.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <lib.h>
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/* Retrieve system load average information. */
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int getloadavg(double *loadavg, int nelem)
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{
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FILE *fp;
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int i;
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if(nelem < 1) {
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errno = ENOSPC;
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return -1;
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}
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if((fp = fopen(_PATH_PROC "loadavg", "r")) == NULL)
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return -1;
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for(i = 0; i < nelem; i++)
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if(fscanf(fp, "%lf", &loadavg[i]) != 1)
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break;
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fclose(fp);
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if (i == 0) {
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errno = ENOENT;
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return -1;
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}
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return i;
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}
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