| 1 | #ifndef _LTTNG_TRACER_CORE_H |
| 2 | #define _LTTNG_TRACER_CORE_H |
| 3 | |
| 4 | /* |
| 5 | * Copyright (C) 2005-2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 6 | * |
| 7 | * This contains the core definitions for the Linux Trace Toolkit. |
| 8 | * |
| 9 | * This library is free software; you can redistribute it and/or |
| 10 | * modify it under the terms of the GNU Lesser General Public |
| 11 | * License as published by the Free Software Foundation; version 2.1 of |
| 12 | * the License. |
| 13 | * |
| 14 | * This library is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * Lesser General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU Lesser General Public |
| 20 | * License along with this library; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 22 | */ |
| 23 | |
| 24 | #include <stddef.h> |
| 25 | #include <urcu/arch.h> |
| 26 | #include <urcu/list.h> |
| 27 | #include <lttng/ust-tracer.h> |
| 28 | #include <lttng/bug.h> |
| 29 | #include <lttng/ringbuffer-config.h> |
| 30 | #include <usterr-signal-safe.h> |
| 31 | #include <helper.h> |
| 32 | |
| 33 | /* |
| 34 | * The longuest possible namespace proc path is with the cgroup ns |
| 35 | * and the maximum theoretical linux pid of 536870912 : |
| 36 | * |
| 37 | * /proc/self/task/536870912/ns/cgroup |
| 38 | */ |
| 39 | #define LTTNG_PROC_NS_PATH_MAX 40 |
| 40 | |
| 41 | struct lttng_session; |
| 42 | struct lttng_channel; |
| 43 | struct lttng_event; |
| 44 | struct lttng_ctx_field; |
| 45 | struct lttng_ust_lib_ring_buffer_ctx; |
| 46 | struct lttng_ctx_value; |
| 47 | |
| 48 | int ust_lock(void) __attribute__ ((warn_unused_result)); |
| 49 | void ust_lock_nocheck(void); |
| 50 | void ust_unlock(void); |
| 51 | |
| 52 | void lttng_fixup_event_tls(void); |
| 53 | void lttng_fixup_vtid_tls(void); |
| 54 | void lttng_fixup_procname_tls(void); |
| 55 | void lttng_fixup_cgroup_ns_tls(void); |
| 56 | void lttng_fixup_ipc_ns_tls(void); |
| 57 | void lttng_fixup_net_ns_tls(void); |
| 58 | void lttng_fixup_time_ns_tls(void); |
| 59 | void lttng_fixup_uts_ns_tls(void); |
| 60 | |
| 61 | const char *lttng_ust_obj_get_name(int id); |
| 62 | |
| 63 | int lttng_get_notify_socket(void *owner); |
| 64 | |
| 65 | LTTNG_HIDDEN |
| 66 | char* lttng_ust_sockinfo_get_procname(void *owner); |
| 67 | |
| 68 | void lttng_ust_sockinfo_session_enabled(void *owner); |
| 69 | |
| 70 | void lttng_ust_malloc_wrapper_init(void); |
| 71 | |
| 72 | ssize_t lttng_ust_read(int fd, void *buf, size_t len); |
| 73 | |
| 74 | size_t lttng_ust_dummy_get_size(struct lttng_ctx_field *field, size_t offset); |
| 75 | void lttng_ust_dummy_record(struct lttng_ctx_field *field, |
| 76 | struct lttng_ust_lib_ring_buffer_ctx *ctx, |
| 77 | struct lttng_channel *chan); |
| 78 | void lttng_ust_dummy_get_value(struct lttng_ctx_field *field, |
| 79 | struct lttng_ctx_value *value); |
| 80 | int lttng_context_is_app(const char *name); |
| 81 | void lttng_ust_fixup_tls(void); |
| 82 | |
| 83 | #ifdef LTTNG_UST_HAVE_PERF_EVENT |
| 84 | void lttng_ust_fixup_perf_counter_tls(void); |
| 85 | void lttng_perf_lock(void); |
| 86 | void lttng_perf_unlock(void); |
| 87 | #else /* #ifdef LTTNG_UST_HAVE_PERF_EVENT */ |
| 88 | static inline |
| 89 | void lttng_ust_fixup_perf_counter_tls(void) |
| 90 | { |
| 91 | } |
| 92 | static inline |
| 93 | void lttng_perf_lock(void) |
| 94 | { |
| 95 | } |
| 96 | static inline |
| 97 | void lttng_perf_unlock(void) |
| 98 | { |
| 99 | } |
| 100 | #endif /* #else #ifdef LTTNG_UST_HAVE_PERF_EVENT */ |
| 101 | |
| 102 | #endif /* _LTTNG_TRACER_CORE_H */ |