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tests/swap.c: cleanup

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* tests/swap.c (error_msg): Remove.
(main): Use errno2name.
This commit is contained in:
Дмитрий Левин 2016-04-21 21:24:43 +00:00
parent f5748b006f
commit f75e034c84
1 changed files with 14 additions and 24 deletions
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38
tests/swap.c
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@ -8,48 +8,38 @@
# include <sys/swap.h>
# include <unistd.h>
static const char *
error_msg(int error_num)
{
switch (error_num) {
case ENOSYS: return "ENOSYS";
case EPERM: return "EPERM";
case EINVAL: return "EINVAL";
default: return "ENOENT";
}
}
int
main(void)
{
static const char sample[] = "swap.sample";
long rc;
int rc = syscall(__NR_swapon, sample, 0);
printf("swapon(\"%s\", 0) = %d %s (%m)\n",
sample, rc, error_msg(errno));
rc = syscall(__NR_swapon, sample, 0);
printf("swapon(\"%s\", %s) = %ld %s (%m)\n",
sample, "0", rc, errno2name());
rc = syscall(__NR_swapon, sample, 42);
printf("swapon(\"%s\", %s) = %d %s (%m)\n",
sample, "42", rc, error_msg(errno));
printf("swapon(\"%s\", %s) = %ld %s (%m)\n",
sample, "42", rc, errno2name());
rc = syscall(__NR_swapon, sample, SWAP_FLAG_PREFER);
printf("swapon(\"%s\", %s) = %d %s (%m)\n",
sample, "SWAP_FLAG_PREFER", rc, error_msg(errno));
printf("swapon(\"%s\", %s) = %ld %s (%m)\n",
sample, "SWAP_FLAG_PREFER", rc, errno2name());
rc = syscall(__NR_swapon, sample, SWAP_FLAG_PREFER | 42);
printf("swapon(\"%s\", %s) = %d %s (%m)\n",
sample, "SWAP_FLAG_PREFER|42", rc, error_msg(errno));
printf("swapon(\"%s\", %s) = %ld %s (%m)\n",
sample, "SWAP_FLAG_PREFER|42", rc, errno2name());
rc = syscall(__NR_swapon, sample, -1L);
printf("swapon(\"%s\", %s) = %d %s (%m)\n",
printf("swapon(\"%s\", %s) = %ld %s (%m)\n",
sample,
"SWAP_FLAG_PREFER|SWAP_FLAG_DISCARD|SWAP_FLAG_DISCARD_ONCE"
"|SWAP_FLAG_DISCARD_PAGES|0xfff80000|32767",
rc, error_msg(errno));
rc, errno2name());
rc = syscall(__NR_swapoff, sample);
printf("swapoff(\"%s\") = %d %s (%m)\n",
sample, rc, error_msg(errno));
printf("swapoff(\"%s\") = %ld %s (%m)\n",
sample, rc, errno2name());
puts("+++ exited with 0 +++");
return 0;