Add missing debugging information in the live plugin

Signed-off-by: Julien Desfossez <jdesfossez@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/formats/lttng-live/lttng-live-comm.c b/formats/lttng-live/lttng-live-comm.c
index 065af49fb06f5f1be0d02f8a39e9919ddafef50b..0e51c0c2ab5b1f2ab8519bb94e67e7305199e5b8 100644 (file)
--- a/formats/lttng-live/lttng-live-comm.c
+++ b/formats/lttng-live/lttng-live-comm.c
@@ -390,6 +390,7 @@ int lttng_live_ctf_trace_assign(struct lttng_live_viewer_stream *stream,
        if (!trace) {
                trace = g_new0(struct lttng_live_ctf_trace, 1);
                trace->ctf_trace_id = ctf_trace_id;
+               printf_verbose("Create trace ctf_trace_id %" PRIu64 "\n", ctf_trace_id);
                BT_INIT_LIST_HEAD(&trace->stream_list);
                g_hash_table_insert(stream->session->ctf_traces,
                                &trace->ctf_trace_id,
@@ -844,6 +845,9 @@ int get_one_metadata_packet(struct lttng_live_ctx *ctx,
        memcpy(cmd_buf, &cmd, sizeof(cmd));
        memcpy(cmd_buf + sizeof(cmd), &rq, sizeof(rq));
 
+       printf_verbose("get_metadata for trace_id: %d, ctf_trace_id: %" PRIu64 "\n",
+                       metadata_stream->ctf_trace->trace_id,
+                       metadata_stream->ctf_trace->ctf_trace_id);
        ret_len = lttng_live_send(ctx->control_sock, cmd_buf, cmd_buf_len);
        if (ret_len < 0) {
                perror("[error] Error sending get_metadata cmd and request");
@@ -1478,6 +1482,9 @@ int add_one_trace(struct lttng_live_ctx *ctx,
        struct bt_trace_descriptor *td;
        struct bt_trace_handle *handle;
 
+       printf_verbose("Add one trace ctf_trace_id: %" PRIu64
+                       " (metadata_stream: %p)\n",
+                       trace->ctf_trace_id, trace->metadata_stream);
        /*
         * We don't know how many streams we will receive for a trace, so
         * once we are done receiving the traces, we add all the traces
@@ -1488,6 +1495,7 @@ int add_one_trace(struct lttng_live_ctx *ctx,
         * If a trace is already in the context, we just skip this function.
         */
        if (trace->in_use) {
+               printf_verbose("Trace already in use\n");
                ret = 0;
                goto end;
        }
@@ -1516,6 +1524,7 @@ int add_one_trace(struct lttng_live_ctx *ctx,
                                goto end_free;
                        }
 
+                       printf_verbose("Metadata stream found\n");
                        trace->metadata_fp = babeltrace_fmemopen(metadata_buf,
                                        stream->metadata_len, "rb");
                        if (!trace->metadata_fp) {
@@ -1553,6 +1562,7 @@ int add_one_trace(struct lttng_live_ctx *ctx,
 
        trace->trace_id = ret;
        trace->in_use = 1;
+       printf_verbose("Trace now in use, id = %d\n", trace->trace_id);
 
        goto end;
 
@@ -1571,6 +1581,7 @@ int add_traces(struct lttng_live_ctx *ctx)
        gpointer key;
        gpointer value;
 
+       printf_verbose("Begin add traces\n");
        g_hash_table_iter_init(&it, ctx->session->ctf_traces);
        while (g_hash_table_iter_next(&it, &key, &value)) {
                trace = (struct lttng_live_ctf_trace *) value;
@@ -1583,6 +1594,7 @@ int add_traces(struct lttng_live_ctx *ctx)
        ret = 0;
 
 end:
+       printf_verbose("End add traces\n");
        return ret;
 }