lttng_ust_init_thread: initialise cached context values

[lttng-ust.git] / src / lib / lttng-ust / lttng-tracer-core.h

diff --git a/src/lib/lttng-ust/lttng-tracer-core.h b/src/lib/lttng-ust/lttng-tracer-core.h
index 04ba642e917065512f8f724d29f78459cbc398b5..61cd740cfd3578d56f51df789c33cf81ae199c98 100644 (file)
--- a/src/lib/lttng-ust/lttng-tracer-core.h
+++ b/src/lib/lttng-ust/lttng-tracer-core.h
@@ -13,21 +13,18 @@
 #include <urcu/arch.h>
 #include <urcu/list.h>
 #include <lttng/ust-tracer.h>
-#include <lttng/ringbuffer-context.h>
+#include <lttng/ust-ringbuffer-context.h>
 #include "common/logging.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
+enum lttng_ust_init_thread_flags {
+       LTTNG_UST_INIT_THREAD_CONTEXT_CACHE = (1 << 0),
+       LTTNG_UST_INIT_THREAD_MASK = (LTTNG_UST_INIT_THREAD_CONTEXT_CACHE << 1) - 1,
+};
 
 struct lttng_ust_session;
 struct lttng_ust_channel_buffer;
 struct lttng_ust_ctx_field;
-struct lttng_ust_lib_ring_buffer_ctx;
+struct lttng_ust_ring_buffer_ctx;
 struct lttng_ust_ctx_value;
 struct lttng_ust_event_recorder;
 struct lttng_ust_event_notifier;
@@ -42,31 +39,28 @@ void ust_lock_nocheck(void)
 void ust_unlock(void)
        __attribute__((visibility("hidden")));
 
-void lttng_ust_fixup_tls(void)
-       __attribute__((visibility("hidden")));
-
-void lttng_fixup_event_tls(void)
+void lttng_ust_common_init_thread(int flags)
        __attribute__((visibility("hidden")));
 
-void lttng_fixup_vtid_tls(void)
+void lttng_ust_vtid_init_thread(int flags)
        __attribute__((visibility("hidden")));
 
-void lttng_fixup_procname_tls(void)
+void lttng_ust_procname_init_thread(int flags)
        __attribute__((visibility("hidden")));
 
-void lttng_fixup_cgroup_ns_tls(void)
+void lttng_ust_cgroup_ns_init_thread(int flags)
        __attribute__((visibility("hidden")));
 
-void lttng_fixup_ipc_ns_tls(void)
+void lttng_ust_ipc_ns_init_thread(int flags)
        __attribute__((visibility("hidden")));
 
-void lttng_fixup_net_ns_tls(void)
+void lttng_ust_net_ns_init_thread(int flags)
        __attribute__((visibility("hidden")));
 
-void lttng_fixup_time_ns_tls(void)
+void lttng_ust_time_ns_init_thread(int flags)
        __attribute__((visibility("hidden")));
 
-void lttng_fixup_uts_ns_tls(void)
+void lttng_ust_uts_ns_init_thread(int flags)
        __attribute__((visibility("hidden")));
 
 const char *lttng_ust_obj_get_name(int id)
@@ -81,36 +75,15 @@ char* lttng_ust_sockinfo_get_procname(void *owner)
 void lttng_ust_sockinfo_session_enabled(void *owner)
        __attribute__((visibility("hidden")));
 
-ssize_t lttng_ust_read(int fd, void *buf, size_t len)
-       __attribute__((visibility("hidden")));
-
-size_t lttng_ust_dummy_get_size(void *priv, size_t offset)
-       __attribute__((visibility("hidden")));
-
-void lttng_ust_dummy_record(void *priv, struct lttng_ust_lib_ring_buffer_ctx *ctx,
-                struct lttng_ust_channel_buffer *chan)
-       __attribute__((visibility("hidden")));
-
-void lttng_ust_dummy_get_value(void *priv, struct lttng_ust_ctx_value *value)
-       __attribute__((visibility("hidden")));
-
 void lttng_event_notifier_notification_send(
-               struct lttng_ust_event_notifier *event_notifier,
+               const struct lttng_ust_event_notifier *event_notifier,
                const char *stack_data,
+               struct lttng_ust_probe_ctx *probe_ctx,
                struct lttng_ust_notification_ctx *notif_ctx)
        __attribute__((visibility("hidden")));
 
-struct lttng_counter_transport *lttng_counter_transport_find(const char *name)
-       __attribute__((visibility("hidden")));
-
-void lttng_counter_transport_register(struct lttng_counter_transport *transport)
-       __attribute__((visibility("hidden")));
-
-void lttng_counter_transport_unregister(struct lttng_counter_transport *transport)
-       __attribute__((visibility("hidden")));
-
 #ifdef HAVE_LINUX_PERF_EVENT_H
-void lttng_ust_fixup_perf_counter_tls(void)
+void lttng_ust_perf_counter_init_thread(int flags)
        __attribute__((visibility("hidden")));
 
 void lttng_perf_lock(void)
@@ -120,7 +93,7 @@ void lttng_perf_unlock(void)
        __attribute__((visibility("hidden")));
 #else /* #ifdef HAVE_LINUX_PERF_EVENT_H */
 static inline
-void lttng_ust_fixup_perf_counter_tls(void)
+void lttng_ust_perf_counter_init_thread(int flags __attribute__((unused)))
 {
 }
 static inline