added timing debug code

1 files changed, 53 insertions, 0 deletions

diff --git a/timing.h b/timing.h
new file mode 100644
index 00000000..bb36d99d
--- /dev/null
+++ b/timing.h
@@ -0,0 +1,53 @@
+#ifndef _TIMING_H
+#define _TIMING_H
+
+#include "debug.h"
+
+#include <ctime>
+
+namespace ledger {
+
+class timing_t
+{
+ public:
+  std::clock_t	begin;
+  std::clock_t	cumulative;
+  std::string	file;
+  unsigned long line;
+  std::string	symbol;
+  std::string	category;
+
+  timing_t(const std::string& _symbol, const std::string& _category)
+    : begin(0), cumulative(0), symbol(_symbol), category(_category) {}
+
+  ~timing_t() {
+    std::string cls = "timing.results.";
+    cls += symbol;
+    DEBUG_PRINT(cls.c_str(), file << ":" << line << ": "
+		<< category << " = "
+		<< (double(cumulative) / double(CLOCKS_PER_SEC)) << "s");
+  }
+
+  void start(const std::string& _file, unsigned long _line) {
+    file  = _file;
+    line  = _line;
+    begin = std::clock();
+  }
+
+  void stop() {
+    cumulative += std::clock() - begin;
+  }
+};
+
+#ifdef DEBUG_ENABLED
+#define TIMER_DEF(sym, cat) static timing_t sym(#sym, cat)
+#define TIMER_START(sym) sym.start(__FILE__, __LINE__)
+#define TIMER_STOP(sym) sym.stop()
+#else
+#define TIMER_START(sym, cat)
+#define TIMER_STOP(sym)
+#endif
+
+} // namespace ledger
+
+#endif // _TIMING_H