Fix: userspace probe accessors are not const-correct

[lttng-tools.git] / include / lttng / event.h

diff --git a/include/lttng/event.h b/include/lttng/event.h
index a85f0f3b569ff002471a2f49af679ae35082177b..3f260c0a5d4479534fa86a2f2dac529245e66d9c 100644 (file)
--- a/include/lttng/event.h
+++ b/include/lttng/event.h
@@ -24,6 +24,7 @@ extern "C" {
 #endif
 
 #include <lttng/handle.h>
+#include <lttng/userspace-probe.h>
 
 /*
  * Instrumentation type of tracing event.
@@ -36,6 +37,7 @@ enum lttng_event_type {
        LTTNG_EVENT_FUNCTION_ENTRY            = 3,
        LTTNG_EVENT_NOOP                      = 4,
        LTTNG_EVENT_SYSCALL                   = 5,
+       LTTNG_EVENT_USERSPACE_PROBE           = 6,
 };
 
 /*
@@ -138,6 +140,12 @@ enum lttng_event_context_type {
        LTTNG_EVENT_CONTEXT_PERF_CPU_COUNTER    = 13,
        LTTNG_EVENT_CONTEXT_PERF_THREAD_COUNTER = 14,
        LTTNG_EVENT_CONTEXT_APP_CONTEXT         = 15,
+       LTTNG_EVENT_CONTEXT_INTERRUPTIBLE       = 16,
+       LTTNG_EVENT_CONTEXT_PREEMPTIBLE         = 17,
+       LTTNG_EVENT_CONTEXT_NEED_RESCHEDULE     = 18,
+       LTTNG_EVENT_CONTEXT_MIGRATABLE          = 19,
+       LTTNG_EVENT_CONTEXT_CALLSTACK_KERNEL    = 20,
+       LTTNG_EVENT_CONTEXT_CALLSTACK_USER      = 21, /* Supported on x86_32 and x86_64 only. */
 };
 
 enum lttng_event_field_type {
@@ -261,7 +269,7 @@ struct lttng_event {
 
        /* Offset 288 */
        union {
-               char padding[8];
+               uint64_t padding;
                void *ptr;
        } extended;
 
@@ -295,18 +303,64 @@ struct lttng_event_field {
 extern int lttng_list_events(struct lttng_handle *handle,
                const char *channel_name, struct lttng_event **events);
 
+extern struct lttng_event *lttng_event_create(void);
+
+extern struct lttng_event *lttng_event_copy(const struct lttng_event *event);
+
+extern void lttng_event_destroy(struct lttng_event *event);
+
 /*
- * Get the filter string of a specific LTTng event.
+ * Get the filter expression of a specific LTTng event.
  *
- * If the call is successful, then the filter string's address is put
- * in *filter_string. If the event has no filter string, *filter_string
- * is set to NULL. The caller does NOT own *filter_string.
+ * If the call is successful, then the filter expression's address is put
+ * in *filter_expression. If the event has no filter expression,
+ * *filter_expression is set to NULL. The caller does NOT own
+ * *filter_expression.
  *
  * Returns 0 on success, or a negative LTTng error code on error.
  */
-extern int lttng_event_get_filter_string(struct lttng_event *event,
+extern int lttng_event_get_filter_expression(struct lttng_event *event,
                const char **filter_string);
 
+/*
+ * Get the number of exclusion names of a specific LTTng event.
+ *
+ * Returns the number of exclusion names on success, or a negative
+ * LTTng error code on error.
+ */
+extern int lttng_event_get_exclusion_name_count(struct lttng_event *event);
+
+/*
+ * Get an LTTng event's exclusion name at a given index.
+ *
+ * If the call is successful, then the exclusion name string's address
+ * is put in *exclusion_name. The caller does NOT own *exclusion_name.
+ *
+ * Returns 0 on success, or a negative LTTng error code on error.
+ */
+extern int lttng_event_get_exclusion_name(struct lttng_event *event,
+               size_t index, const char **exclusion_name);
+
+
+/*
+ * Get the userspace probe location of a specific LTTng event.
+ * If the call is successful, then a pointer to the probe location is returned.
+ * If the event has no probe location a NULL pointer is returned. The caller
+ * does not own the returned probe location.
+ */
+extern const struct lttng_userspace_probe_location *
+lttng_event_get_userspace_probe_location(const struct lttng_event *event);
+
+/*
+ * Set an LTTng event's userspace probe location.
+ * If the call is successful, then the probe location is set to the event. The
+ * ownership of the probe_location is given to the event.
+ *
+ * Returns 0 on success, or a negative LTTng error code on error.
+ */
+extern int lttng_event_set_userspace_probe_location(struct lttng_event *event,
+               struct lttng_userspace_probe_location *probe_location);
+
 /*
  * List the available tracepoints of a specific lttng domain.
  *