Add trace listing feature

[lttng-tools.git] / ltt-sessiond / trace.c

diff --git a/ltt-sessiond/trace.c b/ltt-sessiond/trace.c
index 7d9c40cc03c74b57c27d5a3f0b2ad326ad8210f9..c5d700fd1450b17d842c20a93eef220d75e83d5d 100644 (file)
--- a/ltt-sessiond/trace.c
+++ b/ltt-sessiond/trace.c
@@ -21,6 +21,7 @@
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <urcu/list.h>
 
 #include "lttngerr.h"
@@ -47,3 +48,52 @@ struct ltt_ust_trace *find_session_ust_trace_by_pid(struct ltt_session *session,
        return NULL;
 }
 
+/*
+ *  get_trace_count_per_session
+ *
+ *  Return the total count of traces (ust and kernel)
+ *  for the specified session.
+ */
+int get_trace_count_per_session(struct ltt_session *session)
+{
+       return session->ust_trace_count + session->kern_trace_count;
+}
+
+/*
+ *  get_traces_per_session
+ *
+ *  Fill the lttng_trace array of all the
+ *  available trace of the session.
+ */
+void get_traces_per_session(struct ltt_session *session, struct lttng_trace *traces)
+{
+       int i = 0;
+       struct ltt_ust_trace *ust_iter;
+       struct ltt_kernel_trace *kern_iter;
+       struct lttng_trace trace;
+
+       DBG("Getting userspace traces for session %s", session->name);
+
+       /* Getting userspace traces */
+       cds_list_for_each_entry(ust_iter, &session->ust_traces, list) {
+               trace.type = USERSPACE;
+               trace.pid = ust_iter->pid;
+               strncpy(trace.name, ust_iter->name, sizeof(trace.name));
+               trace.name[sizeof(trace.name) - 1] = '\0';
+               memcpy(&traces[i], &trace, sizeof(trace));
+               memset(&trace, 0, sizeof(trace));
+               i++;
+       }
+
+       DBG("Getting kernel traces for session %s", session->name);
+
+       /* Getting kernel traces */
+       cds_list_for_each_entry(kern_iter, &session->kernel_traces, list) {
+               trace.type = KERNEL;
+               strncpy(trace.name, kern_iter->name, sizeof(trace.name));
+               trace.name[sizeof(trace.name) - 1] = '\0';
+               memcpy(&traces[i], &trace, sizeof(trace));
+               memset(&trace, 0, sizeof(trace));
+               i++;
+       }
+}