From 9afb810f3a05298ba9d5a94495c59082e0a18a3b Mon Sep 17 00:00:00 2001
From: Aaron <aaronquinlan@gmail.com>
Date: Fri, 7 Jan 2011 08:02:56 -0500
Subject: [PATCH] Fixed Issue #60. Improved randomization granularity for
shuffleBed.
Previously used time() which has 1 second precision.
Now use gettimeofday() which has millisecond precision.
---
src/shuffleBed/shuffleBed.cpp | 6 +++++-
src/shuffleBed/shuffleBed.h | 1 +
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/src/shuffleBed/shuffleBed.cpp b/src/shuffleBed/shuffleBed.cpp
index 5306f9f4..3aca557b 100644
--- a/src/shuffleBed/shuffleBed.cpp
+++ b/src/shuffleBed/shuffleBed.cpp
@@ -31,7 +31,11 @@ BedShuffle::BedShuffle(string &bedFile, string &genomeFile, string &excludeFile,
srand(seed);
}
else {
- srand((unsigned)time(0));
+ timeval tim;
+ gettimeofday(&tim, NULL);
+ int t1=tim.tv_sec+tim.tv_usec;
+
+ srand((unsigned)t1);
}
_bed = new BedFile(bedFile);
diff --git a/src/shuffleBed/shuffleBed.h b/src/shuffleBed/shuffleBed.h
index 5dde6108..ab675110 100644
--- a/src/shuffleBed/shuffleBed.h
+++ b/src/shuffleBed/shuffleBed.h
@@ -18,6 +18,7 @@
#include <map>
#include <cstdlib>
#include <ctime>
+#include <sys/time.h>
using namespace std;
--
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