+++ /dev/null
-/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
- *
- * lttng-counter-client-percpu-64-modular.c
- *
- * LTTng lib counter client. Per-cpu 64-bit counters in modular
- * arithmetic.
- *
- * Copyright (C) 2020 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#include "ust-events-internal.h"
-#include "../libcounter/counter.h"
-#include "../libcounter/counter-api.h"
-#include "lttng-tracer-core.h"
-#include "lttng-counter-client.h"
-
-static const struct lib_counter_config client_config = {
- .alloc = COUNTER_ALLOC_PER_CPU,
- .sync = COUNTER_SYNC_PER_CPU,
- .arithmetic = COUNTER_ARITHMETIC_MODULAR,
- .counter_size = COUNTER_SIZE_64_BIT,
-};
-
-static struct lib_counter *counter_create(size_t nr_dimensions,
- const struct lttng_counter_dimension *dimensions,
- int64_t global_sum_step,
- int global_counter_fd,
- int nr_counter_cpu_fds,
- const int *counter_cpu_fds,
- bool is_daemon)
-{
- size_t max_nr_elem[LTTNG_COUNTER_DIMENSION_MAX], i;
-
- if (nr_dimensions > LTTNG_COUNTER_DIMENSION_MAX)
- return NULL;
- for (i = 0; i < nr_dimensions; i++) {
- if (dimensions[i].has_underflow || dimensions[i].has_overflow)
- return NULL;
- max_nr_elem[i] = dimensions[i].size;
- }
- return lttng_counter_create(&client_config, nr_dimensions, max_nr_elem,
- global_sum_step, global_counter_fd, nr_counter_cpu_fds,
- counter_cpu_fds, is_daemon);
-}
-
-static void counter_destroy(struct lib_counter *counter)
-{
- lttng_counter_destroy(counter);
-}
-
-static int counter_add(struct lib_counter *counter, const size_t *dimension_indexes, int64_t v)
-{
- return lttng_counter_add(&client_config, counter, dimension_indexes, v);
-}
-
-static int counter_read(struct lib_counter *counter, const size_t *dimension_indexes, int cpu,
- int64_t *value, bool *overflow, bool *underflow)
-{
- return lttng_counter_read(&client_config, counter, dimension_indexes, cpu, value,
- overflow, underflow);
-}
-
-static int counter_aggregate(struct lib_counter *counter, const size_t *dimension_indexes,
- int64_t *value, bool *overflow, bool *underflow)
-{
- return lttng_counter_aggregate(&client_config, counter, dimension_indexes, value,
- overflow, underflow);
-}
-
-static int counter_clear(struct lib_counter *counter, const size_t *dimension_indexes)
-{
- return lttng_counter_clear(&client_config, counter, dimension_indexes);
-}
-
-static struct lttng_counter_transport lttng_counter_transport = {
- .name = "counter-per-cpu-64-modular",
- .ops = {
- .counter_create = counter_create,
- .counter_destroy = counter_destroy,
- .counter_add = counter_add,
- .counter_read = counter_read,
- .counter_aggregate = counter_aggregate,
- .counter_clear = counter_clear,
- },
- .client_config = &client_config,
-};
-
-void lttng_counter_client_percpu_64_modular_init(void)
-{
- lttng_counter_transport_register(<tng_counter_transport);
-}
-
-void lttng_counter_client_percpu_64_modular_exit(void)
-{
- lttng_counter_transport_unregister(<tng_counter_transport);
-}