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abd5d7c8fd
Signed-off-by: Amitay Isaacs <amitay@gmail.com> Reviewed-by: Martin Schwenke <martin@meltin.net>
141 lines
3.2 KiB
C
141 lines
3.2 KiB
C
/*
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ctdb tunables code
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Copyright (C) Andrew Tridgell 2007
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "replace.h"
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#include "system/network.h"
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#include <talloc.h>
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#include <tdb.h>
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#include "lib/util/debug.h"
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#include "ctdb_private.h"
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#include "common/common.h"
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#include "common/logging.h"
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#include "common/tunable.h"
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/*
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set all tunables to defaults
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*/
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void ctdb_tunables_set_defaults(struct ctdb_context *ctdb)
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{
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ctdb_tunable_set_defaults(&ctdb->tunable);
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}
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/*
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get a tunable
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*/
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int32_t ctdb_control_get_tunable(struct ctdb_context *ctdb, TDB_DATA indata,
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TDB_DATA *outdata)
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{
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struct ctdb_control_get_tunable *t =
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(struct ctdb_control_get_tunable *)indata.dptr;
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char *name;
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uint32_t val;
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bool ret;
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if (indata.dsize < sizeof(*t) ||
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t->length > indata.dsize - offsetof(struct ctdb_control_get_tunable, name)) {
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DEBUG(DEBUG_ERR,("Bad indata in ctdb_control_get_tunable\n"));
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return -1;
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}
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name = talloc_strndup(ctdb, (char*)t->name, t->length);
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CTDB_NO_MEMORY(ctdb, name);
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ret = ctdb_tunable_get_value(&ctdb->tunable, name, &val);
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talloc_free(name);
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if (! ret) {
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return -EINVAL;
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}
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outdata->dptr = (uint8_t *)talloc(outdata, uint32_t);
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CTDB_NO_MEMORY(ctdb, outdata->dptr);
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*(uint32_t *)outdata->dptr = val;
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outdata->dsize = sizeof(uint32_t);
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return 0;
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}
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/*
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set a tunable
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*/
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int32_t ctdb_control_set_tunable(struct ctdb_context *ctdb, TDB_DATA indata)
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{
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struct ctdb_tunable_old *t =
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(struct ctdb_tunable_old *)indata.dptr;
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char *name;
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int ret;
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bool obsolete;
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if (indata.dsize < sizeof(*t) ||
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t->length > indata.dsize - offsetof(struct ctdb_tunable_old, name)) {
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DEBUG(DEBUG_ERR,("Bad indata in ctdb_control_set_tunable\n"));
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return -1;
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}
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name = talloc_strndup(ctdb, (char *)t->name, t->length);
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CTDB_NO_MEMORY(ctdb, name);
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ret = ctdb_tunable_set_value(&ctdb->tunable, name, t->value,
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&obsolete);
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if (! ret) {
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talloc_free(name);
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return -1;
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}
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if (obsolete) {
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DEBUG(DEBUG_WARNING,
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("Setting obsolete tunable \"%s\"\n", name));
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talloc_free(name);
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return 1;
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}
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talloc_free(name);
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return 0;
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}
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/*
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list tunables
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*/
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int32_t ctdb_control_list_tunables(struct ctdb_context *ctdb, TDB_DATA *outdata)
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{
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char *list = NULL;
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struct ctdb_control_list_tunable *t;
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list = ctdb_tunable_names_to_string(outdata);
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CTDB_NO_MEMORY(ctdb, list);
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outdata->dsize = offsetof(struct ctdb_control_list_tunable, data) +
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strlen(list) + 1;
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outdata->dptr = talloc_size(outdata, outdata->dsize);
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CTDB_NO_MEMORY(ctdb, outdata->dptr);
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t = (struct ctdb_control_list_tunable *)outdata->dptr;
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t->length = strlen(list)+1;
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memcpy(t->data, list, t->length);
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talloc_free(list);
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return 0;
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}
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