feat(bench): Add benchmarking

1 files changed, 49 insertions, 0 deletions

diff --git a/bench/bench.h b/bench/bench.h
index 1a7ef78..ac414ce 100644
--- a/bench/bench.h
+++ b/bench/bench.h
@@ -1,6 +1,55 @@
 #ifndef TINYFF_BENCH_H_
 #define TINYFF_BENCH_H_
 
+#include <time.h>
 
+#define FF_BENCH_MAX_MARKERS 32
+
+typedef struct {
+    const char *label;
+    clock_t tick;
+} ff_bench_marker;
+
+typedef struct {
+    const char *label;
+    clock_t _start;
+    clock_t _end;
+    
+    ff_bench_marker markers[FF_BENCH_MAX_MARKERS];
+    int _mcount;
+} ff_bench;
+
+// These need to be inline so they are fast
+
+static inline ff_bench ff_bench_start(const char* label) {
+    ff_bench b;
+    b.label = label;
+    b._start = clock();
+    b._end = 0;
+    
+    // Markers
+    b._mcount = 0;
+    
+    return b;
+}
+
+static inline void ff_bench_end(ff_bench *b) {
+    b->_end = clock();
+}
+
+static inline void ff_bench_mark(ff_bench *b, const char *label) {
+    if (b->_mcount >= FF_BENCH_MAX_MARKERS) return;
+    
+    ff_bench_marker m;
+    m.label = label;
+    m.tick = clock();
+    
+    b->markers[b->_mcount] = m;
+    b->_mcount++;
+}
+
+static inline double ff_bench_seconds(const ff_bench *b) {
+    return (double)(b->_end - b->_start) / CLOCKS_PER_SEC;
+}
 
 #endif // TINYFF_BENCH_H
\ No newline at end of file