Fix: consumer: put each chunk on teardown

[lttng-tools.git] / src / common / trace-chunk.c

diff --git a/src/common/trace-chunk.c b/src/common/trace-chunk.c
index a183fbeb0ff18d6aa969d984685228c0691cc46e..dbab99d192876a73ce49be5975b674f55ec4e60e 100644 (file)
--- a/src/common/trace-chunk.c
+++ b/src/common/trace-chunk.c
@@ -1293,3 +1293,49 @@ lttng_trace_chunk_registry_find_anonymous_chunk(
         return _lttng_trace_chunk_registry_find_chunk(registry,
                        session_id, NULL);
 }
+
+unsigned int lttng_trace_chunk_registry_put_each_chunk(
+               struct lttng_trace_chunk_registry *registry)
+{
+       struct cds_lfht_iter iter;
+       struct lttng_trace_chunk_registry_element *chunk_element;
+       unsigned int trace_chunks_left = 0;
+
+       DBG("Releasing trace chunk registry to all trace chunks");
+       rcu_read_lock();
+       cds_lfht_for_each_entry(registry->ht,
+                       &iter, chunk_element, trace_chunk_registry_ht_node) {
+               const char *chunk_id_str = "none";
+               char chunk_id_buf[MAX_INT_DEC_LEN(uint64_t)];
+
+               pthread_mutex_lock(&chunk_element->chunk.lock);
+               if (chunk_element->chunk.id.is_set) {
+                       int fmt_ret;
+
+                       fmt_ret = snprintf(chunk_id_buf, sizeof(chunk_id_buf),
+                                       "%" PRIu64,
+                                       chunk_element->chunk.id.value);
+                       if (fmt_ret < 0 || fmt_ret >= sizeof(chunk_id_buf)) {
+                               chunk_id_str = "formatting error";
+                       } else {
+                               chunk_id_str = chunk_id_buf;
+                       }
+               }
+
+               DBG("Releasing reference to trace chunk: session_id = %" PRIu64
+                               "chunk_id = %s, name = \"%s\", status = %s",
+                               chunk_element->session_id,
+                               chunk_id_str,
+                               chunk_element->chunk.name ? : "none",
+                               chunk_element->chunk.close_command.is_set ?
+                                               "open" : "closed");
+               pthread_mutex_unlock(&chunk_element->chunk.lock);
+               lttng_trace_chunk_put(&chunk_element->chunk);
+               trace_chunks_left++;
+       }
+       rcu_read_unlock();
+       DBG("Released reference to %u trace chunks in %s()", trace_chunks_left,
+                       __FUNCTION__);
+
+       return trace_chunks_left;
+}