add warning if thread state cannot be matched

vmprof · Apr 26, 2017 · b7f9577 · b7f9577
1 parent 8cae862
commit b7f9577
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/vmprof_main.h b/src/vmprof_main.h
@@ -174,6 +174,7 @@ static PY_THREAD_STATE_T * _get_pystate_for_this_thread(void) {
     } while ((istate = PyInterpreterState_Next(istate)) != NULL);
 
     // uh? not found?
+    fprintf(stderr, "WARNING: cannot find thread state, sample will be thrown away\n");
     return NULL;
 }
 #endif