From c0aa5cf0c4df55a542a3f5c060fb840da4bc0b2d Mon Sep 17 00:00:00 2001
From: weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0>
Date: Sun, 20 Jun 2004 17:56:15 +0000
Subject: port to CodeWarrior 8.3

git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@175 57ff6487-cd31-0410-9ec3-f628ee90f5f0
---
 hrtimer.cpp | 103 +++++++++++++++++++++++++++++++-----------------------------
 1 file changed, 54 insertions(+), 49 deletions(-)

(limited to 'hrtimer.cpp')

diff --git a/hrtimer.cpp b/hrtimer.cpp
index 904bc52..38763fb 100644
--- a/hrtimer.cpp
+++ b/hrtimer.cpp
@@ -4,8 +4,7 @@
 #include "hrtimer.h"
 #include "misc.h"
 #include <stddef.h>		// for NULL
-
-#ifdef HIGHRES_TIMER_AVAILABLE
+#include <time.h>
 
 #if defined(CRYPTOPP_WIN32_AVAILABLE)
 #include <windows.h>
@@ -19,33 +18,38 @@
 
 NAMESPACE_BEGIN(CryptoPP)
 
-word64 Timer::GetCurrentTimerValue()
+double TimerBase::ConvertTo(word64 t, Unit unit)
 {
-#if defined(CRYPTOPP_WIN32_AVAILABLE)
-	LARGE_INTEGER now;
-	if (!QueryPerformanceCounter(&now))
-		throw Exception(Exception::OTHER_ERROR, "Timer: QueryPerformanceCounter failed with error " + IntToString(GetLastError()));
-	return now.QuadPart;
-#elif defined(CRYPTOPP_UNIX_AVAILABLE)
-	timeval now;
-	gettimeofday(&now, NULL);
-	return (word64)now.tv_sec * 1000000 + now.tv_usec;
-#endif
+	static unsigned long unitsPerSecondTable[] = {1, 1000, 1000*1000, 1000*1000*1000};
+
+	assert(unit < sizeof(unitsPerSecondTable) / sizeof(unitsPerSecondTable[0]));
+	return (double)t * unitsPerSecondTable[unit] / TicksPerSecond();
 }
 
-word64 Timer::TicksPerSecond()
+void TimerBase::StartTimer()
 {
-#if defined(CRYPTOPP_WIN32_AVAILABLE)
-	static LARGE_INTEGER freq = {0};
-	if (freq.QuadPart == 0)
+	m_start = GetCurrentTimerValue();
+	m_started = true;
+}
+
+double TimerBase::ElapsedTimeAsDouble()
+{
+	if (m_stuckAtZero)
+		return 0;
+	else if (m_started)
+		return ConvertTo(GetCurrentTimerValue() - m_start, m_timerUnit);
+	else
 	{
-		if (!QueryPerformanceFrequency(&freq))
-			throw Exception(Exception::OTHER_ERROR, "Timer: QueryPerformanceFrequency failed with error " + IntToString(GetLastError()));
+		StartTimer();
+		return 0;
 	}
-	return freq.QuadPart;
-#elif defined(CRYPTOPP_UNIX_AVAILABLE)
-	return 1000000;
-#endif
+}
+
+unsigned long TimerBase::ElapsedTime()
+{
+	double elapsed = ElapsedTimeAsDouble();
+	assert(elapsed <= ULONG_MAX);
+	return (unsigned long)elapsed;
 }
 
 word64 ThreadUserTimer::GetCurrentTimerValue()
@@ -73,6 +77,8 @@ GetCurrentThreadNotImplemented:
 	tms now;
 	times(&now);
 	return now.tms_utime;
+#else
+	return clock();
 #endif
 }
 
@@ -83,43 +89,42 @@ word64 ThreadUserTimer::TicksPerSecond()
 #elif defined(CRYPTOPP_UNIX_AVAILABLE)
 	static const long ticksPerSecond = sysconf(_SC_CLK_TCK);
 	return ticksPerSecond;
+#else
+	return CLOCKS_PER_SEC;
 #endif
 }
 
-double TimerBase::ConvertTo(word64 t, Unit unit)
-{
-	static unsigned long unitsPerSecondTable[] = {1, 1000, 1000*1000, 1000*1000*1000};
-
-	assert(unit < sizeof(unitsPerSecondTable) / sizeof(unitsPerSecondTable[0]));
-	return (double)t * unitsPerSecondTable[unit] / TicksPerSecond();
-}
+#ifdef HIGHRES_TIMER_AVAILABLE
 
-void TimerBase::StartTimer()
+word64 Timer::GetCurrentTimerValue()
 {
-	m_start = GetCurrentTimerValue();
-	m_started = true;
+#if defined(CRYPTOPP_WIN32_AVAILABLE)
+	LARGE_INTEGER now;
+	if (!QueryPerformanceCounter(&now))
+		throw Exception(Exception::OTHER_ERROR, "Timer: QueryPerformanceCounter failed with error " + IntToString(GetLastError()));
+	return now.QuadPart;
+#elif defined(CRYPTOPP_UNIX_AVAILABLE)
+	timeval now;
+	gettimeofday(&now, NULL);
+	return (word64)now.tv_sec * 1000000 + now.tv_usec;
+#endif
 }
 
-double TimerBase::ElapsedTimeAsDouble()
+word64 Timer::TicksPerSecond()
 {
-	if (m_stuckAtZero)
-		return 0;
-	else if (m_started)
-		return ConvertTo(GetCurrentTimerValue() - m_start, m_timerUnit);
-	else
+#if defined(CRYPTOPP_WIN32_AVAILABLE)
+	static LARGE_INTEGER freq = {0};
+	if (freq.QuadPart == 0)
 	{
-		StartTimer();
-		return 0;
+		if (!QueryPerformanceFrequency(&freq))
+			throw Exception(Exception::OTHER_ERROR, "Timer: QueryPerformanceFrequency failed with error " + IntToString(GetLastError()));
 	}
+	return freq.QuadPart;
+#elif defined(CRYPTOPP_UNIX_AVAILABLE)
+	return 1000000;
+#endif
 }
 
-unsigned long TimerBase::ElapsedTime()
-{
-	double elapsed = ElapsedTimeAsDouble();
-	assert(elapsed <= ULONG_MAX);
-	return (unsigned long)elapsed;
-}
+#endif
 
 NAMESPACE_END
-
-#endif
-- 
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