Refactor profiling code

haversine_02/include/profiler/timer.h

@@ -3,6 +3,13 @@
 
 #include "aliases.h"
 
+// TODO (Abdelrahman): Not fully satisfied with this solution
+#define PROFILER_SAMPLE(ID, TITLE, CODE)                                       \
+  u64 ID##_start = read_cpu_timer();                                           \
+  CODE;                                                                        \
+  u64 ID##_end = read_cpu_timer();                                             \
+  add_sample(TITLE, ID##_end - ID##_start);
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -18,6 +25,11 @@ u64 read_cpu_timer(void);
 // CPU frequency in hz/sec
 u64 get_cpu_freq(u64 milliseconds);
 
+void profile_start();
+void profile_end();
+
+void add_sample(const char *title, u64 duration);
+
 #ifdef __cplusplus
 }
 #endif