Cleanup: update ifdef wrapper name
[babeltrace.git] / lib / trace-collection.c
index c117874812bfebf28110ee8d9c3013ac16402831..9bc5b1fcc8b0ecc543dd65b7a67734f4c44c8968 100644 (file)
@@ -138,8 +138,12 @@ static void clock_add(gpointer key, gpointer value, gpointer user_data)
 int trace_collection_add(struct trace_collection *tc,
                                struct trace_descriptor *td)
 {
-       struct ctf_trace *trace = container_of(td, struct ctf_trace, parent);
+       struct ctf_trace *trace;
 
+       if (!tc || !td)
+               return -EINVAL;
+
+       trace = container_of(td, struct ctf_trace, parent);
        g_ptr_array_add(tc->array, td);
        trace->collection = tc;
 
@@ -187,6 +191,9 @@ error:
 int trace_collection_remove(struct trace_collection *tc,
                            struct trace_descriptor *td)
 {
+       if (!tc || !td)
+               return -EINVAL;
+
        if (g_ptr_array_remove(tc->array, td)) {
                return 0;
        } else {
@@ -197,6 +204,7 @@ int trace_collection_remove(struct trace_collection *tc,
 
 void init_trace_collection(struct trace_collection *tc)
 {
+       assert(tc);
        tc->array = g_ptr_array_new();
        tc->clocks = g_hash_table_new(g_direct_hash, g_direct_equal);
        tc->single_clock_offset_avg = 0;
@@ -211,6 +219,7 @@ void init_trace_collection(struct trace_collection *tc)
  */
 void finalize_trace_collection(struct trace_collection *tc)
 {
+       assert(tc);
        g_ptr_array_free(tc->array, TRUE);
        g_hash_table_destroy(tc->clocks);
 }
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