2 * SPDX-License-Identifier: MIT
4 * Copyright (C) 2020 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 #ifndef _LTTNG_COUNTER_H
10 #define _LTTNG_COUNTER_H
13 #include <lttng/ust-config.h>
14 #include "counter-types.h"
16 /* max_nr_elem is for each dimension. */
17 __attribute__((visibility("hidden")))
18 struct lib_counter
*lttng_counter_create(const struct lib_counter_config
*config
,
20 const size_t *max_nr_elem
,
21 int64_t global_sum_step
,
22 int global_counter_fd
,
23 int nr_counter_cpu_fds
,
24 const int *counter_cpu_fds
,
26 __attribute__((visibility("hidden")))
27 void lttng_counter_destroy(struct lib_counter
*counter
);
29 __attribute__((visibility("hidden")))
30 int lttng_counter_set_global_shm(struct lib_counter
*counter
, int fd
);
32 __attribute__((visibility("hidden")))
33 int lttng_counter_set_cpu_shm(struct lib_counter
*counter
, int cpu
, int fd
);
35 __attribute__((visibility("hidden")))
36 int lttng_counter_get_global_shm(struct lib_counter
*counter
, int *fd
, size_t *len
);
38 __attribute__((visibility("hidden")))
39 int lttng_counter_get_cpu_shm(struct lib_counter
*counter
, int cpu
, int *fd
, size_t *len
);
41 __attribute__((visibility("hidden")))
42 int lttng_counter_read(const struct lib_counter_config
*config
,
43 struct lib_counter
*counter
,
44 const size_t *dimension_indexes
,
45 int cpu
, int64_t *value
,
46 bool *overflow
, bool *underflow
);
48 __attribute__((visibility("hidden")))
49 int lttng_counter_aggregate(const struct lib_counter_config
*config
,
50 struct lib_counter
*counter
,
51 const size_t *dimension_indexes
,
53 bool *overflow
, bool *underflow
);
55 __attribute__((visibility("hidden")))
56 int lttng_counter_clear(const struct lib_counter_config
*config
,
57 struct lib_counter
*counter
,
58 const size_t *dimension_indexes
);
60 #endif /* _LTTNG_COUNTER_H */
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