6b5cb345c5
procps_uptime, previously just plain uptime() used to put the uptime (as a double) in the first argument and return uptime (as an int). It meant if you ran myuptime2 = procps_uptime(&myuptime1, NULL); You might get different results for myuptime1 and myuptime2 because they are different types. Most library calls use the return value to return the status, procps_uptime was in the middle. Until now. This function will return 0 on success. If you want (for whatever reason) uptime as an int then cast it. All of the procps binaries didn't use the return value for uptime except ps which set a variable to it but never used it anywhere.
98 lines
2.3 KiB
C
98 lines
2.3 KiB
C
/*
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* libprocps - Library to read proc filesystem
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* Tests for version library calls
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*
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* Copyright 2016 Craig Small <csmall@enc.com.au>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <proc/procps.h>
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#include "tests.h"
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int check_uptime(void *data)
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{
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testname = "procps_uptime()";
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double up=0, idle=0;
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int rc;
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rc = procps_uptime(&up, &idle);
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return (rc == 0 && up > 0 && idle > 0);
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}
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int check_uptime_nullup(void *data)
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{
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double idle=0;
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int rc;
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testname = "procps_uptime() (up=NULL)";
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rc = procps_uptime(NULL, &idle);
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return (rc == 0 && idle > 0);
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}
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int check_uptime_nullidle(void *data)
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{
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double up=0;
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int rc;
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testname = "procps_uptime() (idle=NULL)";
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rc = procps_uptime(&up, NULL);
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return (rc == 0 && up > 0);
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}
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int check_uptime_nullall(void *data)
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{
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int rc;
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testname = "procps_uptime() (up,idle=NULL)";
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rc = procps_uptime(NULL, NULL);
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return (rc == 0);
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}
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int check_uptime_sprint(void *data)
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{
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char *str;
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testname = "procps_uptime_sprint()";
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str = procps_uptime_sprint();
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return (str != NULL && str[0] != '\0');
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}
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int check_uptime_sprint_short(void *data)
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{
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char *str;
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testname = "procps_uptime_sprint_short()";
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str = procps_uptime_sprint_short();
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return (str != NULL && str[0] != '\0');
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}
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TestFunction test_funcs[] = {
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check_uptime,
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check_uptime_nullup,
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check_uptime_nullidle,
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check_uptime_nullall,
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check_uptime_sprint,
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check_uptime_sprint_short,
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NULL,
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};
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int main(int argc, char *argv[])
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{
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return run_tests(test_funcs, NULL);
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}
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