1 files changed, 52 insertions, 0 deletions
diff --git a/old/botan/src/timer/timer.cpp b/old/botan/src/timer/timer.cpp
new file mode 100644
index 0000000..035c217
--- /dev/null
+++ b/old/botan/src/timer/timer.cpp
@@ -0,0 +1,52 @@
+/**
+* Timestamp Functions
+* (C) 1999-2009 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#include <botan/timer.h>
+#include <botan/loadstor.h>
+#include <botan/util.h>
+#include <ctime>
+
+namespace Botan {
+
+/**
+* Get the system clock
+*/
+u64bit system_time()
+   {
+   return static_cast<u64bit>(std::time(0));
+   }
+
+/**
+* Read the clock and return the output
+*/
+void Timer::poll(Entropy_Accumulator& accum)
+   {
+   const u64bit clock_value = this->clock();
+   accum.add(clock_value, 0);
+   }
+
+/**
+* Combine a two time values into a single one
+*/
+u64bit Timer::combine_timers(u32bit seconds, u32bit parts, u32bit parts_hz)
+   {
+   static const u64bit NANOSECONDS_UNITS = 1000000000;
+
+   u64bit res = seconds * NANOSECONDS_UNITS;
+   res += parts * (NANOSECONDS_UNITS / parts_hz);
+   return res;
+   }
+
+/**
+* ANSI Clock
+*/
+u64bit ANSI_Clock_Timer::clock() const
+   {
+   return combine_timers(std::time(0), std::clock(), CLOCKS_PER_SEC);
+   }
+
+}