[Debtags-commits] [svn] r1582 - in tagcoll/trunk: . tagcoll

[Enrico Zini]

Author: enrico
Date: Wed Feb 15 13:38:47 2006
New Revision: 1582

Modified:
   tagcoll/trunk/   (props changed)
   tagcoll/trunk/README
   tagcoll/trunk/tagcoll/MMapIndex.cc
   tagcoll/trunk/tagcoll/MMapIndex.h
Log:
 r7324 at viaza:  enrico | 2006-02-15 14:38:29 +0100
 Made MMapIndex default constructible


Modified: tagcoll/trunk/README
==============================================================================
--- tagcoll/trunk/README	(original)
+++ tagcoll/trunk/README	Wed Feb 15 13:38:47 2006
@@ -177,6 +177,12 @@
     + mmap-based fast index
     + patch directory
 
+ - Change the 'related' function to return a vector of itemsets, one for every
+   distance
+ - Experiment with different 'related' algorithms: the current one is hamming
+   distance, but it could also me 'number of common tags', which would also be
+   more efficient to compute
+
  - Create more IntIndex specific optimized methods instead of using the default
    ones
 

Modified: tagcoll/trunk/tagcoll/MMapIndex.cc
==============================================================================
--- tagcoll/trunk/tagcoll/MMapIndex.cc	(original)
+++ tagcoll/trunk/tagcoll/MMapIndex.cc	Wed Feb 15 13:38:47 2006
@@ -64,9 +64,20 @@
 	close(m_fd);
 }
 
+MMapIndex::MMapIndex()
+	: m_master(0), m_buf(0), m_size(0) {}
+
 MMapIndex::MMapIndex(const MasterMMapIndex& master, size_t idx)
-	: m_master(master), m_buf(m_master.m_buf), m_size(*(int*)m_buf)
 {
+	init(master, idx);
+}
+
+void MMapIndex::init(const MasterMMapIndex& master, size_t idx)
+{
+	m_master = &master;
+	m_buf = master.m_buf;
+	m_size = *(int*)m_buf;
+
 	// Jump to the idx-th index
 	for (size_t i = 0; i < idx; i++)
 	{

Modified: tagcoll/trunk/tagcoll/MMapIndex.h
==============================================================================
--- tagcoll/trunk/tagcoll/MMapIndex.h	(original)
+++ tagcoll/trunk/tagcoll/MMapIndex.h	Wed Feb 15 13:38:47 2006
@@ -58,12 +58,15 @@
 class MMapIndex
 {
 protected:
-	const MasterMMapIndex& m_master;
+	const MasterMMapIndex* m_master;
 	const char* m_buf;
 	size_t m_size;
 
 public:
+	MMapIndex();
 	MMapIndex(const MasterMMapIndex& master, size_t idx);
+
+	void init(const MasterMMapIndex& master, size_t idx);
 };
 
 /**