1 files changed, 23 insertions, 3 deletions
diff --git a/includes/benchmark.h b/includes/benchmark.h
index 39de042b..277f0c07 100644
--- a/includes/benchmark.h
+++ b/includes/benchmark.h
@@ -27,9 +27,29 @@ void benchmark_nqueens(void);
 void benchmark_raytrace(void);
 void benchmark_zlib(void);
 
-gdouble benchmark_parallel_for(guint start, guint end,
+typedef struct {
+    double result;
+    double elapsed_time;
+    int threads_used;
+} bench_value;
+
+#define EMPTY_BENCH_VALUE {-1.0f,0,0}
+
+char *bench_value_to_str(bench_value r);
+bench_value bench_value_from_str(const char* str);
+
+/* Note:
+ *    benchmark_parallel_for(): element [start] included, but [end] is excluded.
+ *    callback(): expected to processes elements [start] through [end] inclusive.
+ */
+bench_value benchmark_parallel_for(gint n_threads, guint start, guint end,
+                               gpointer callback, gpointer callback_data);
+
+bench_value benchmark_parallel(gint n_threads, gpointer callback, gpointer callback_data);
+
+bench_value benchmark_crunch_for(float seconds, gint n_threads,
                                gpointer callback, gpointer callback_data);
 
-extern gdouble bench_results[BENCHMARK_N_ENTRIES];
+extern bench_value bench_results[BENCHMARK_N_ENTRIES];
 
-#endif /* __BENCHMARK_H__ */
-\ No newline at end of file
+#endif /* __BENCHMARK_H__ */