From 7f5403eed95da4350dcc03d817eb8468dab07142 Mon Sep 17 00:00:00 2001
From: Alex Schmidt <alex@treefish.org>
Date: Wed, 20 Mar 2013 16:00:06 +0100
Subject: [PATCH 1/1] only storing concurrent config file HASHES instead of
 full names.

---
 configcache.cpp |  8 ++++----
 configcache.h   |  2 +-
 hypercache.cpp  | 18 ++++++++++--------
 hypercache.h    |  4 ++--
 4 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/configcache.cpp b/configcache.cpp
index b375230..1095775 100644
--- a/configcache.cpp
+++ b/configcache.cpp
@@ -172,7 +172,7 @@ void * configcache::getHeader(const string& headerid) {
   return NULL;
 }
 
-bool configcache::readConfig(vector<string> *excludefiles)
+bool configcache::readConfig(vector<unsigned long> *excludeFileHashes)
 {   
   if(DATADIR == "" || MODE == CACHE_MODE_DISABLED) return false;
 
@@ -190,9 +190,9 @@ bool configcache::readConfig(vector<string> *excludefiles)
 
 	openFileDesc = inFiles.back();
 
-	if (excludefiles != NULL)
-	  for (vector<string>::iterator exit = excludefiles->begin(); exit != excludefiles->end(); ++exit)
-	    if ( *exit == inFiles.back().filename ) {
+	if (excludeFileHashes != NULL)
+	  for (vector<unsigned long>::iterator exit = excludeFileHashes->begin(); exit != excludeFileHashes->end(); ++exit)
+	    if ( *exit == hash(inFiles.back().filename) ) {
 	      excludethisfile = true;
 	      break;
 	    }
diff --git a/configcache.h b/configcache.h
index eaf610a..17c8606 100644
--- a/configcache.h
+++ b/configcache.h
@@ -38,7 +38,7 @@ class configcache{
   ~configcache();
   configcache(const string& cacheid, const int& nequi, const int& nskip, const string& datadir, char **configmem, const int& configMemSize, 
 	      const int& cachemode=CACHE_MODE_FULL, writeout *out_a=NULL);
-  bool readConfig(vector<string> *excludefiles=NULL);
+  bool readConfig(vector<unsigned long> *excludeFileHashes=NULL);
   void writeConfig();
   void addPara(const string& parid, const double& val=0);
   void setPara(const string& parid, const double& value);
diff --git a/hypercache.cpp b/hypercache.cpp
index 16de2a2..b025ba6 100644
--- a/hypercache.cpp
+++ b/hypercache.cpp
@@ -5,7 +5,7 @@ configcache *hypercache::C = NULL;
 vector<hypercache::para> hypercache::delayedParaAdd;
 vector<hypercache::para> hypercache::delayedParaSet;
 string hypercache::activeCFile = "";
-vector<string> hypercache::parentConfigs;
+vector<unsigned long> hypercache::parentConfigs;
 writeout *hypercache::out = NULL;
 
 void hypercache::initCache(configcache **cache,
@@ -88,8 +88,10 @@ void hypercache::writeC() {
 }
 
 void hypercache::writeO() {
-  if ( activeCFile != "" )
-    O->writeHeader("concurrent_cfile", activeCFile.c_str(), (activeCFile.length()+1)*sizeof(char));
+  if ( activeCFile != "" ) {
+    unsigned long afilehash = configcache::hash(activeCFile);
+    O->writeHeader("concurrent_cfile", (char*)(&afilehash), sizeof(unsigned long));
+  }
 
   O->writeConfig(); 
 }
@@ -98,7 +100,7 @@ bool hypercache::readO() {
   bool readret;
 
   if ( readret = O->readConfig() ) {
-    char *parentconfig = (char*)O->getHeader("concurrent_cfile");
+    unsigned long *parentconfig = (unsigned long*)O->getHeader("concurrent_cfile");
     if ( parentconfig != NULL )
       addParentConfig(parentconfig);
   }
@@ -106,10 +108,10 @@ bool hypercache::readO() {
   return readret;
 }
 
-void hypercache::addParentConfig(const char* parentconfig) {
-  for (vector<string>::iterator parit = parentConfigs.begin(); parit != parentConfigs.end(); ++parit)
-    if ( *parit == parentconfig )
+void hypercache::addParentConfig(const unsigned long *parentconfig) {
+  for (vector<unsigned long>::iterator parit = parentConfigs.begin(); parit != parentConfigs.end(); ++parit)
+    if ( *parit == *parentconfig )
       return;
 
-  parentConfigs.push_back(parentconfig);
+  parentConfigs.push_back(*parentconfig);
 }
diff --git a/hypercache.h b/hypercache.h
index f37bb0f..11e1565 100644
--- a/hypercache.h
+++ b/hypercache.h
@@ -52,8 +52,8 @@ class hypercache {
 
   static string fileOfPath(const string& dressedfile);
   static string activeCFile;
-  static vector<string> parentConfigs;
-  static void addParentConfig(const char* parentconfig);
+  static vector<unsigned long> parentConfigs;
+  static void addParentConfig(const unsigned long *parentconfig);
 };
 
 #endif
-- 
2.39.5