1 files changed, 0 insertions, 115 deletions
diff --git a/src/uscxml/concurrency/Timer.cpp b/src/uscxml/concurrency/Timer.cpp
deleted file mode 100644
index 77b712f..0000000
--- a/src/uscxml/concurrency/Timer.cpp
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright 2013 Alex Reece.
-//
-// A cross platform monotonic timer.
-
-// see https://github.com/awreece/monotonic_timer
-
-#include "uscxml/config.h"
-#ifdef HAS_UNISTD_H
-#include <unistd.h>
-#endif
-#include "Timer.h"
-
-#define NANOS_PER_SECF 1000000000.0
-#define USECS_PER_SEC 1000000
-
-#if _POSIX_TIMERS > 0 && defined(_POSIX_MONOTONIC_CLOCK)
-// If we have it, use clock_gettime and CLOCK_MONOTONIC.
-
-#include <time.h>
-
-double uscxml::Timer::monotonic_seconds() {
-	struct timespec time;
-	// Note: Make sure to link with -lrt to define clock_gettime.
-	clock_gettime(CLOCK_MONOTONIC, &time);
-	return ((double) time.tv_sec) + ((double) time.tv_nsec / (NANOS_PER_SECF));
-}
-
-#elif defined(__APPLE__)
-// If we don't have CLOCK_MONOTONIC, we might be on a Mac. There we instead
-// use mach_absolute_time().
-
-#include <mach/mach_time.h>
-
-static mach_timebase_info_data_t info;
-static void __attribute__((constructor)) init_info() {
-	mach_timebase_info(&info);
-}
-
-double uscxml::Timer::monotonic_seconds() {
-	uint64_t time = mach_absolute_time();
-	double dtime = (double) time;
-	dtime *= (double) info.numer;
-	dtime /= (double) info.denom;
-	return dtime / NANOS_PER_SECF;
-}
-
-#elif defined(_MSC_VER)
-// On Windows, use QueryPerformanceCounter and QueryPerformanceFrequency.
-
-#define NOMINMAX
-#include <windows.h>
-
-static double PCFreq = 0.0;
-__int64 CounterStart = 0;
-
-double uscxml::Timer::monotonic_seconds() {
-	if (CounterStart == 0) {
-		// Accoring to http://stackoverflow.com/a/1739265/447288, this will
-		// properly initialize the QueryPerformanceCounter.
-
-		LARGE_INTEGER li;
-		int has_qpc = QueryPerformanceFrequency(&li);
-
-		PCFreq = ((double) li.QuadPart) / 1000.0;
-	}
-	LARGE_INTEGER li;
-	QueryPerformanceCounter(&li);
-	return double(li.QuadPart - CounterStart)/PCFreq;
-}
-
-#else
-// Fall back to rdtsc. The reason we don't use clock() is this scary message
-// from the man page:
-//     "On several other implementations, the value returned by clock() also
-//      includes the times of any children whose status has been collected via
-//      wait(2) (or another wait-type call)."
-//
-// Also, clock() only has microsecond accuracy.
-//
-// This whitepaper offered excellent advice on how to use rdtscp for
-// profiling: http://download.intel.com/embedded/software/IA/324264.pdf
-//
-// Unfortunately, we can't follow its advice exactly with our semantics,
-// so we're just going to use rdtscp with cpuid.
-//
-// Note that rdtscp will only be available on new processors.
-
-#include <stdint.h>
-
-static inline uint64_t rdtsc() {
-	uint32_t hi, lo;
-	asm volatile("rdtscp\n"
-	             "movl %%edx, %0\n"
-	             "movl %%eax, %1\n"
-	             "cpuid"
-	             : "=r" (hi), "=r" (lo) : : "%rax", "%rbx", "%rcx", "%rdx");
-	return (((uint64_t)hi) << 32) | (uint64_t)lo;
-}
-
-static uint64_t rdtsc_per_sec = 0;
-static void __attribute__((constructor)) init_rdtsc_per_sec() {
-	uint64_t before, after;
-
-	before = rdtsc();
-	usleep(USECS_PER_SEC);
-	after = rdtsc();
-
-	rdtsc_per_sec = after - before;
-}
-
-double uscxml::Timer::monotonic_seconds() {
-	return (double) rdtsc() / (double) rdtsc_per_sec;
-}
-
-#endif