Move to kernel style SPDX license identifiers

[lttng-ust.git] / liblttng-ust / lttng-tracer-core.h

diff --git a/liblttng-ust/lttng-tracer-core.h b/liblttng-ust/lttng-tracer-core.h
index f2e95674b2373b2dd8ed7bb194c64e9ad37c57f8..efb4f5b6764b4f5ec49b92136da838fe306ada6a 100644 (file)
--- 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 <mathieu.desnoyers@efficios.com>
  *
  * 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 <stdint.h>
+#ifndef _LTTNG_TRACER_CORE_H
+#define _LTTNG_TRACER_CORE_H
+
 #include <stddef.h>
 #include <urcu/arch.h>
 #include <urcu/list.h>
@@ -29,18 +16,93 @@
 #include <lttng/bug.h>
 #include <lttng/ringbuffer-config.h>
 #include <usterr-signal-safe.h>
+#include <helper.h>
+
+/*
+ * 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);
+int ust_lock(void) __attribute__ ((warn_unused_result));
+void ust_lock_nocheck(void);
 void ust_unlock(void);
 
 void lttng_fixup_event_tls(void);
 void lttng_fixup_vtid_tls(void);
 void lttng_fixup_procname_tls(void);
+void lttng_fixup_cgroup_ns_tls(void);
+void lttng_fixup_ipc_ns_tls(void);
+void lttng_fixup_net_ns_tls(void);
+LTTNG_HIDDEN
+void lttng_fixup_time_ns_tls(void);
+void lttng_fixup_uts_ns_tls(void);
 
 const char *lttng_ust_obj_get_name(int id);
 
+int lttng_get_notify_socket(void *owner);
+
+LTTNG_HIDDEN
+char* lttng_ust_sockinfo_get_procname(void *owner);
+
+void lttng_ust_sockinfo_session_enabled(void *owner);
+
+void lttng_ust_malloc_wrapper_init(void);
+
+ssize_t lttng_ust_read(int fd, void *buf, size_t len);
+
+size_t lttng_ust_dummy_get_size(struct lttng_ctx_field *field, size_t offset);
+void lttng_ust_dummy_record(struct lttng_ctx_field *field,
+                struct lttng_ust_lib_ring_buffer_ctx *ctx,
+                struct lttng_channel *chan);
+void lttng_ust_dummy_get_value(struct lttng_ctx_field *field,
+               struct lttng_ctx_value *value);
+int lttng_context_is_app(const char *name);
+void lttng_ust_fixup_tls(void);
+
+extern void (*lttng_ust_liburcu_bp_before_fork)(void);
+extern void (*lttng_ust_liburcu_bp_after_fork_parent)(void);
+extern void (*lttng_ust_liburcu_bp_after_fork_child)(void);
+
+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 LTTNG_UST_HAVE_PERF_EVENT
+void lttng_ust_fixup_perf_counter_tls(void);
+void lttng_perf_lock(void);
+void lttng_perf_unlock(void);
+#else /* #ifdef LTTNG_UST_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 LTTNG_UST_HAVE_PERF_EVENT */
+
 #endif /* _LTTNG_TRACER_CORE_H */