support: Add support_record_failure_barrier

This can be used to stop execution after a TEST_COMPARE_BLOB
failure, for example.

2 files changed, 13 insertions, 0 deletions

diff --git a/support/check.h b/support/check.h
index 7ea22c7..8f41e5b 100644
--- a/support/check.h
+++ b/support/check.h
@@ -207,6 +207,9 @@ void support_record_failure_reset (void);
    failures or not.  */
 int support_record_failure_is_failed (void);
 
+/* Terminate the process if any failures have been encountered so far.  */
+void support_record_failure_barrier (void);
+
 __END_DECLS
 
 #endif /* SUPPORT_CHECK_H */
diff --git a/support/support_record_failure.c b/support/support_record_failure.c
index 9781237..72ee2b2 100644
--- a/support/support_record_failure.c
+++ b/support/support_record_failure.c
@@ -112,3 +112,13 @@ support_record_failure_is_failed (void)
      synchronization for reliable test error reporting anyway.  */
   return __atomic_load_n (&state->failed, __ATOMIC_RELAXED);
 }
+
+void
+support_record_failure_barrier (void)
+{
+  if (__atomic_load_n (&state->failed, __ATOMIC_RELAXED))
+    {
+      puts ("error: exiting due to previous errors");
+      exit (1);
+    }
+}