haproxy/src/counters.c
Aurelien DARRAGON 713ebd2750 CLEANUP: counters: rename counters_be_shared_init to counters_be_shared_prepare
75e480d10 ("MEDIUM: stats: avoid 1 indirection by storing the shared
stats directly in counters struct") took care of renaming
counters_fe_shared_init() but we forgot counters_be_shared_init().

Let's fix that for consistency
2025-07-29 18:00:13 +02:00

96 lines
2.9 KiB
C

/*
* objects counters management
*
* Copyright 2025 HAProxy Technologies
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdlib.h>
#include <haproxy/atomic.h>
#include <haproxy/clock.h>
#include <haproxy/counters.h>
#include <haproxy/global.h>
#include <haproxy/time.h>
static void _counters_shared_drop(void *counters)
{
struct counters_shared *shared = counters;
int it = 0;
if (!shared)
return;
/* memory was allocated using calloc(), simply free it */
while (it < global.nbtgroups) {
free(shared->tg[it]);
it += 1;
}
}
/* release a shared fe counters struct */
void counters_fe_shared_drop(struct fe_counters_shared *counters)
{
_counters_shared_drop(counters);
}
/* release a shared be counters struct */
void counters_be_shared_drop(struct be_counters_shared *counters)
{
_counters_shared_drop(counters);
}
/* prepare shared counters pointer for a given <guid> object
* <size> hint is expected to reflect the actual tg member size (fe/be)
* if <guid> is not set, then sharing is disabled
* Returns the pointer on success or NULL on failure
*/
static int _counters_shared_prepare(struct counters_shared *shared, const struct guid_node *guid, size_t size)
{
int it = 0;
/* no shared memory for now, simply allocate a memory block
* for the counters (zero-initialized), ignore guid
*/
if (!guid->node.key)
shared->flags |= COUNTERS_SHARED_F_LOCAL;
while (it < global.nbtgroups) {
shared->tg[it] = calloc(1, size);
if (!shared->tg[it]) {
_counters_shared_drop(shared);
return 0;
}
it += 1;
}
/* initial values:
* only set one group, only latest value is considered
*/
HA_ATOMIC_STORE(&shared->tg[0]->last_state_change, ns_to_sec(now_ns));
return 1;
}
/* prepare shared fe counters pointer for a given <guid> object */
int counters_fe_shared_prepare(struct fe_counters_shared *shared, const struct guid_node *guid)
{
return _counters_shared_prepare((struct counters_shared *)shared, guid, sizeof(struct fe_counters_shared_tg));
}
/* prepare shared be counters pointer for a given <guid> object */
int counters_be_shared_prepare(struct be_counters_shared *shared, const struct guid_node *guid)
{
return _counters_shared_prepare((struct counters_shared *)shared, guid, sizeof(struct be_counters_shared_tg));
}