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/*
Test tunable handling
Copyright (C) Martin Schwenke, DataDirect Networks 2022
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "replace.h"
#include "system/filesys.h"
#include <talloc.h>
#include <assert.h>
#include "common/logging.c"
#include "common/tunable.c"
static void usage(const char * prog)
{
fprintf(stderr,
"Usage: %s <filename> [<filename>|<dir>]\n",
prog);
exit(1);
}
int main(int argc, const char **argv)
{
TALLOC_CTX *mem_ctx;
struct ctdb_tunable_list tun_list;
struct ctdb_var_list *list;
bool status;
int ret = 0;
int i;
if (argc != 2 && argc != 3) {
usage(argv[0]);
}
mem_ctx = talloc_new(NULL);
assert(mem_ctx != NULL);
ret = logging_init(mem_ctx, "file:", NULL, "tunable_test");
if (ret != 0) {
fprintf(stderr, "%s: error initialising logging\n", argv[0]);
}
ctdb_tunable_set_defaults(&tun_list);
status = ctdb_tunable_load_file(mem_ctx, &tun_list, argv[1]);
if (!status) {
ret = EINVAL;
goto done;
}
if (argc == 3) {
struct stat st = {};
int stat_failed = false;
ret = stat(argv[2], &st);
if (ret != 0) {
if (errno == ENOENT || errno == EACCES) {
stat_failed = true;
} else {
usage(argv[0]);
}
}
/*
* If stat() failed then continue and test the failure
* path in directory loading. The failure path in
* file loading can already be tested with the
* mandatory 1st file argument.
*/
if (stat_failed || S_ISDIR(st.st_mode)) {
status = ctdb_tunable_load_directory(mem_ctx,
&tun_list,
argv[2]);
} else {
status = ctdb_tunable_load_file(mem_ctx,
&tun_list,
argv[2]);
}
if (!status) {
ret = EINVAL;
goto done;
}
}
list = ctdb_tunable_names(mem_ctx);
assert(list != NULL);
ret = 0;
for (i = 0; i < list->count; i++) {
const char *var = list->var[i];
uint32_t val;
status = ctdb_tunable_get_value(&tun_list, var, &val);
if (!status) {
ret = EIO;
goto done;
}
printf("%s=%"PRIu32"\n", var, val);
fflush(stdout);
}
done:
talloc_free(mem_ctx);
return ret;
}
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