X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fust-ctl.h;h=3260400602f26018ac7a3bd24eb59aefd87ee439;hb=c0c0989ab70574e09b2f7e8b48c2da6af664a849;hp=19fba726b56c049a141b5259b2105d1f76d6fadb;hpb=218deb69baab57ee2f6728eef18e84697f21197b;p=lttng-ust.git diff --git a/include/lttng/ust-ctl.h b/include/lttng/ust-ctl.h index 19fba726..32604006 100644 --- a/include/lttng/ust-ctl.h +++ b/include/lttng/ust-ctl.h @@ -1,19 +1,8 @@ /* - * Copyright (C) 2011 - Julien Desfossez - * Copyright (C) 2011-2013 - Mathieu Desnoyers + * SPDX-License-Identifier: GPL-2.0-only * - * 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; version 2 of the License only. - * - * 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. + * Copyright (C) 2011 Julien Desfossez + * Copyright (C) 2011-2013 Mathieu Desnoyers */ #ifndef _LTTNG_UST_CTL_H @@ -22,6 +11,7 @@ #include #include #include +#include #include #include @@ -93,6 +83,8 @@ int ustctl_add_context(int sock, struct lttng_ust_context_attr *ctx, struct lttng_ust_object_data **context_data); int ustctl_set_filter(int sock, struct lttng_ust_filter_bytecode *bytecode, struct lttng_ust_object_data *obj_data); +int ustctl_set_capture(int sock, struct lttng_ust_capture_bytecode *bytecode, + struct lttng_ust_object_data *obj_data); int ustctl_set_exclusion(int sock, struct lttng_ust_event_exclusion *exclusion, struct lttng_ust_object_data *obj_data); @@ -101,6 +93,28 @@ int ustctl_disable(int sock, struct lttng_ust_object_data *object); int ustctl_start_session(int sock, int handle); int ustctl_stop_session(int sock, int handle); +/* + * ustctl_create_event notifier_group creates a event notifier group. It + * establishes the connection with the application by providing a file + * descriptor of the pipe to be used by the application when a event notifier + * of that group is fired. It returns a handle to be used when creating event + * notifier in that group. + */ +int ustctl_create_event_notifier_group(int sock, int pipe_fd, + struct lttng_ust_object_data **event_notifier_group); + +/* + * ustctl_create_event notifier creates a event notifier in a event notifier + * group giving a event notifier description and a event notifier group handle. + * It returns a event notifier handle to be used when enabling the event + * notifier, attaching filter, attaching exclusion, and disabling the event + * notifier. + */ +int ustctl_create_event_notifier(int sock, + struct lttng_ust_event_notifier *event_notifier, + struct lttng_ust_object_data *event_notifier_group, + struct lttng_ust_object_data **event_notifier_data); + /* * ustctl_tracepoint_list returns a tracepoint list handle, or negative * error value. @@ -567,4 +581,81 @@ int ustctl_reply_register_channel(int sock, enum ustctl_channel_header header_type, int ret_code); /* return code. 0 ok, negative error */ +/* + * Counter API. + */ + +enum ustctl_counter_bitness { + USTCTL_COUNTER_BITNESS_32 = 0, + USTCTL_COUNTER_BITNESS_64 = 1, +}; + +enum ustctl_counter_arithmetic { + USTCTL_COUNTER_ARITHMETIC_MODULAR = 0, + USTCTL_COUNTER_ARITHMETIC_SATURATION = 1, +}; + +/* Used as alloc flags. */ +enum ustctl_counter_alloc { + USTCTL_COUNTER_ALLOC_PER_CPU = (1 << 0), + USTCTL_COUNTER_ALLOC_GLOBAL = (1 << 1), +}; + +struct ustctl_daemon_counter; + +int ustctl_get_nr_cpu_per_counter(void); + +struct ustctl_counter_dimension { + uint64_t size; + uint64_t underflow_index; + uint64_t overflow_index; + uint8_t has_underflow; + uint8_t has_overflow; +}; + +struct ustctl_daemon_counter * + ustctl_create_counter(size_t nr_dimensions, + const struct ustctl_counter_dimension *dimensions, + int64_t global_sum_step, + int global_counter_fd, + int nr_counter_cpu_fds, + const int *counter_cpu_fds, + enum ustctl_counter_bitness bitness, + enum ustctl_counter_arithmetic arithmetic, + uint32_t alloc_flags); + +int ustctl_create_counter_data(struct ustctl_daemon_counter *counter, + struct lttng_ust_object_data **counter_data); + +int ustctl_create_counter_global_data(struct ustctl_daemon_counter *counter, + struct lttng_ust_object_data **counter_global_data); +int ustctl_create_counter_cpu_data(struct ustctl_daemon_counter *counter, int cpu, + struct lttng_ust_object_data **counter_cpu_data); + +/* + * Each counter data and counter cpu data created need to be destroyed + * before calling ustctl_destroy_counter(). + */ +void ustctl_destroy_counter(struct ustctl_daemon_counter *counter); + +int ustctl_send_counter_data_to_ust(int sock, int parent_handle, + struct lttng_ust_object_data *counter_data); +int ustctl_send_counter_global_data_to_ust(int sock, + struct lttng_ust_object_data *counter_data, + struct lttng_ust_object_data *counter_global_data); +int ustctl_send_counter_cpu_data_to_ust(int sock, + struct lttng_ust_object_data *counter_data, + struct lttng_ust_object_data *counter_cpu_data); + +int ustctl_counter_read(struct ustctl_daemon_counter *counter, + const size_t *dimension_indexes, + int cpu, int64_t *value, + bool *overflow, bool *underflow); +int ustctl_counter_aggregate(struct ustctl_daemon_counter *counter, + const size_t *dimension_indexes, + int64_t *value, + bool *overflow, bool *underflow); +int ustctl_counter_clear(struct ustctl_daemon_counter *counter, + const size_t *dimension_indexes); + #endif /* _LTTNG_UST_CTL_H */