X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=liblttng-ust%2Flttng-tracer-core.h;h=2e44d978348ce3abb4951a973229232fa77c0775;hb=5a664ef1b6f7398f493addc2745df37c61abb655;hp=e7f549e0cede664c7038f92b7bc5b29a50951d51;hpb=95c25348271ce9978f1b3e892685110ad52d13ea;p=lttng-ust.git diff --git a/liblttng-ust/lttng-tracer-core.h b/liblttng-ust/lttng-tracer-core.h index e7f549e0..2e44d978 100644 --- a/liblttng-ust/lttng-tracer-core.h +++ b/liblttng-ust/lttng-tracer-core.h @@ -1,27 +1,14 @@ -#ifndef _LTTNG_TRACER_CORE_H -#define _LTTNG_TRACER_CORE_H - /* + * SPDX-License-Identifier: LGPL-2.1-only + * * Copyright (C) 2005-2011 Mathieu Desnoyers * * This contains the core definitions for the Linux Trace Toolkit. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; version 2.1 of - * the License. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ -#include +#ifndef _LTTNG_TRACER_CORE_H +#define _LTTNG_TRACER_CORE_H + #include #include #include @@ -29,23 +16,110 @@ #include #include #include +#include + +/* + * The longuest possible namespace proc path is with the cgroup ns + * and the maximum theoretical linux pid of 536870912 : + * + * /proc/self/task/536870912/ns/cgroup + */ +#define LTTNG_PROC_NS_PATH_MAX 40 struct lttng_session; struct lttng_channel; struct lttng_event; +struct lttng_ctx_field; +struct lttng_ust_lib_ring_buffer_ctx; +struct lttng_ctx_value; +struct lttng_event_notifier; -void ust_lock(void); +LTTNG_HIDDEN +int ust_lock(void) __attribute__ ((warn_unused_result)); +LTTNG_HIDDEN +void ust_lock_nocheck(void); +LTTNG_HIDDEN void ust_unlock(void); +LTTNG_HIDDEN +void lttng_ust_fixup_tls(void); +LTTNG_HIDDEN void lttng_fixup_event_tls(void); +LTTNG_HIDDEN void lttng_fixup_vtid_tls(void); +LTTNG_HIDDEN void lttng_fixup_procname_tls(void); +LTTNG_HIDDEN +void lttng_fixup_cgroup_ns_tls(void); +LTTNG_HIDDEN +void lttng_fixup_ipc_ns_tls(void); +LTTNG_HIDDEN +void lttng_fixup_net_ns_tls(void); +LTTNG_HIDDEN +void lttng_fixup_time_ns_tls(void); +LTTNG_HIDDEN +void lttng_fixup_uts_ns_tls(void); +LTTNG_HIDDEN +void lttng_ust_fixup_fd_tracker_tls(void); + +LTTNG_HIDDEN const char *lttng_ust_obj_get_name(int id); +LTTNG_HIDDEN int lttng_get_notify_socket(void *owner); -void lttng_ust_sockinfo_session_enabled(void *owner, - struct lttng_session *session_enabled); +LTTNG_HIDDEN +char* lttng_ust_sockinfo_get_procname(void *owner); + +LTTNG_HIDDEN +void lttng_ust_sockinfo_session_enabled(void *owner); + +LTTNG_HIDDEN +ssize_t lttng_ust_read(int fd, void *buf, size_t len); + +LTTNG_HIDDEN +size_t lttng_ust_dummy_get_size(struct lttng_ctx_field *field, size_t offset); +LTTNG_HIDDEN +void lttng_ust_dummy_record(struct lttng_ctx_field *field, + struct lttng_ust_lib_ring_buffer_ctx *ctx, + struct lttng_channel *chan); +LTTNG_HIDDEN +void lttng_ust_dummy_get_value(struct lttng_ctx_field *field, + struct lttng_ctx_value *value); + +LTTNG_HIDDEN +void lttng_event_notifier_notification_send( + struct lttng_event_notifier *event_notifier, + const char *stack_data); + +LTTNG_HIDDEN +struct lttng_counter_transport *lttng_counter_transport_find(const char *name); +LTTNG_HIDDEN +void lttng_counter_transport_register(struct lttng_counter_transport *transport); +LTTNG_HIDDEN +void lttng_counter_transport_unregister(struct lttng_counter_transport *transport); + +#ifdef HAVE_PERF_EVENT +LTTNG_HIDDEN +void lttng_ust_fixup_perf_counter_tls(void); +LTTNG_HIDDEN +void lttng_perf_lock(void); +LTTNG_HIDDEN +void lttng_perf_unlock(void); +#else /* #ifdef HAVE_PERF_EVENT */ +static inline +void lttng_ust_fixup_perf_counter_tls(void) +{ +} +static inline +void lttng_perf_lock(void) +{ +} +static inline +void lttng_perf_unlock(void) +{ +} +#endif /* #else #ifdef HAVE_PERF_EVENT */ #endif /* _LTTNG_TRACER_CORE_H */