Migrate tracepoint instrumentation to TP_FIELDS

[lttng-modules.git] / lttng-context-tid.c

diff --git a/lttng-context-tid.c b/lttng-context-tid.c
index 5ddc43c5cfdbcb94587ded42da4594a1c38af4b9..7b8e04bed21518520f3d3a2b45127b08dd2dfb15 100644 (file)
--- a/lttng-context-tid.c
+++ b/lttng-context-tid.c
@@ -50,6 +50,16 @@ void tid_record(struct lttng_ctx_field *field,
        chan->ops->event_write(ctx, &tid, sizeof(tid));
 }
 
+static
+void tid_get_value(struct lttng_ctx_field *field,
+               union lttng_ctx_value *value)
+{
+       pid_t tid;
+
+       tid = task_pid_nr(current);
+       value->s64 = tid;
+}
+
 int lttng_add_tid_to_ctx(struct lttng_ctx **ctx)
 {
        struct lttng_ctx_field *field;
@@ -71,6 +81,7 @@ int lttng_add_tid_to_ctx(struct lttng_ctx **ctx)
        field->event_field.type.u.basic.integer.encoding = lttng_encode_none;
        field->get_size = tid_get_size;
        field->record = tid_record;
+       field->get_value = tid_get_value;
        lttng_context_update(*ctx);
        wrapper_vmalloc_sync_all();
        return 0;