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sysinfo, procfs: Support memory info partially

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Change-Id: I597dae4f82d64d3f23889cef960db18ae879ff06
refs: #1389
This commit is contained in:
Ken Sato
2020-04-07 12:55:52 +09:00
committed by Masamichi Takagi
parent 8e42c2a254
commit 8f74888f87
14 changed files with 506 additions and 0 deletions
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65
test/issues/1389/C1389T01.c Normal file
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#include <stdio.h>
#include <stdlib.h>
#include <linux/kernel.h>
#include <sys/sysinfo.h>
#include <errno.h>
int main(void)
{
struct sysinfo *info;
int ret = 0, rc = 0;
unsigned long assigned_mem = (20UL << 30);
unsigned long _totalram, _freeram;
unsigned int _mem_unit;
info = malloc(sizeof(struct sysinfo));
rc = sysinfo(info);
if (rc) {
perror("sysinfo fail: ");
ret = -1;
goto out;
}
_totalram = info->totalram;
_freeram = info->freeram;
_mem_unit = info->mem_unit;
// Check totalram
if (0.95 * assigned_mem < _totalram &&
_totalram < assigned_mem) {
printf("[OK] totalram: %ld\n", _totalram);
}
else {
printf("[NG] unexpected totalram: %ld\n", _totalram);
printf(" expected range: %ld - %ld\n",
(unsigned long)(0.95 * assigned_mem),
assigned_mem);
ret = -1;
goto out;
}
// Check freeram
if (0.95 * _totalram < _freeram &&
_freeram < _totalram) {
printf("[OK] freeram: %ld\n", _freeram);
}
else {
printf("[NG] unexpected freeram: %ld\n", _freeram);
ret = -1;
goto out;
}
// Check mem_unit
if (_mem_unit == 1) {
printf("[OK] mem_unit: %ld\n", _mem_unit);
}
else {
printf("[NG] unexpected mem_unit: %ld\n", _mem_unit);
ret = -1;
goto out;
}
free(info);
out:
return ret;
}