Merge pull request #1 from dbrumbaugh/new-buffer

Initial Concurrency Implementation

1 files changed, 20 insertions, 3 deletions

diff --git a/include/util/bf_config.h b/include/util/bf_config.h
index 2390643..9f29ed7 100644
--- a/include/util/bf_config.h
+++ b/include/util/bf_config.h
@@ -1,25 +1,42 @@
 /*
  * include/util/bf_config.h
  *
- * Copyright (C) 2023 Douglas Rumbaugh <drumbaugh@psu.edu> 
+ * Copyright (C) 2023 Douglas B. Rumbaugh <drumbaugh@psu.edu> 
  *                    Dong Xie <dongx@psu.edu>
  *
- * All rights reserved. Published under the Modified BSD License.
+ * Distributed under the Modified BSD License.
+ *
+ * Global parameters for configuring bloom filters used as auxiliary
+ * structures on shards within the framework. The bloom filter class
+ * can be found in
+ *
+ * $PROJECT_ROOT/external/psudb-common/cpp/include/psu-ds/BloomFilter.h
  *
  */
 #pragma once
 
-#include "psu-util/alignment.h"
+#include <cstdlib>
 
 namespace de {
 
+/* global variable for specifying bloom filter FPR */
 static double BF_FPR = .01;
+
+/* global variable for specifying number of BF hash functions (k) */
 static size_t BF_HASH_FUNCS = 7;
 
+/*
+ * Adjust the value of BF_FPR. The argument must be on the interval 
+ * (0, 1), or the behavior of bloom filters is undefined.
+ */
 static void BF_SET_FPR(double fpr) {
     BF_FPR = fpr;
 }
 
+/*
+ * Adjust the value of BF_HASH_FUNCS. The argument must be on the interval
+ * (0, INT64_MAX], or the behavior of bloom filters is undefined.
+ */
 static void BF_SET_HASHFUNC(size_t func_cnt) {
     BF_HASH_FUNCS = func_cnt;
 }