X-Git-Url: http://git.treefish.org/~alex/phys/latlib.git/blobdiff_plain/dde851eb3186dbb51898dfe8fc530fce1e0a4cd3..38ffdcb3843eec92d62b23d32a735107a49fb7d8:/configcache.cpp?ds=sidebyside

diff --git a/configcache.cpp b/configcache.cpp
index f642e9f..491256c 100644
--- a/configcache.cpp
+++ b/configcache.cpp
@@ -4,11 +4,26 @@
 #include <iostream>
 #include <time.h>
 #include <dirent.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <boost/iostreams/filtering_streambuf.hpp>
+#include <boost/iostreams/stream.hpp>
+#include <boost/iostreams/filter/bzip2.hpp>
+#include <boost/iostreams/device/array.hpp>
+#include <boost/iostreams/copy.hpp>
 
 #define HEADER_READOK   0
 #define HEADER_READERR  1
 #define HEADER_READLAST 2
 
+struct configcache::iobuffers
+{
+  boost::iostreams::filtering_istreambuf *in;
+  boost::iostreams::filtering_ostreambuf *out;
+};
+
 configcache::configcache(const string& cacheid, const int& nequi, const int& nskip, const string& datadir, char **configmem, const int& configMemSize, const int& cachemode,
 			 ostream *_log){
   log = _log;
@@ -29,21 +44,34 @@ configcache::configcache(const string& cacheid, const int& nequi, const int& nsk
   *configmem = configMem;
   configSize = configMemSize;
 
-  outBuffer = NULL;
-  inBuffer = NULL;
+  ioBuffers = new iobuffers;
+  ioBuffers->in = NULL;
+  ioBuffers->out = NULL;
 
   MODE = cachemode;
 
   refetchDataFiles = false;
 }
 
-string configcache::getFileId(int actnequi, const bool& shortid)
+string configcache::paraString() {
+  stringstream parastring;
+
+  for(int ipara=0; ipara<Paras.size(); ipara++)
+    parastring << "_" << Paras[ipara].id << Paras[ipara].val;
+  
+  return parastring.str();
+}
+
+string configcache::getFileId(int actnequi, const bool& superextended, const bool& shortid)
 {
   stringstream fileid;
 
   if(!shortid) fileid << CACHEID << "_" << actnequi << "_" << NSKIP;
-  for(int ipara=0; ipara<Paras.size(); ipara++)
-    fileid << "_" << Paras[ipara].id << Paras[ipara].val;
+
+  if( superextended )
+    fileid << "_" << hash( paraString() );
+  else
+    fileid << "_" << paraString();
 
   return fileid.str();
 }
@@ -72,15 +100,21 @@ bool configcache::isValidInFile(const string& infile, infiledesc *filedesc)
   string truncIn, truncOut;
 
   filedesc->filename = infile;
-  filedesc->doVirtualEquilibration = false;
-  filedesc->firstUsedConfig = true;
 
   if( infile.size() < 4 ) return false;
 
-  if( infile.substr(infile.size()-4) == ".dat" )
+  if( infile.substr(infile.size()-4) == ".dat" ) {
     filedesc->extended = false;
-  else if( infile.substr(infile.size()-4) == "edat" )
+    filedesc->superextended = false;
+  }
+  else if( infile.substr(infile.size()-4) == "edat" ) {
     filedesc->extended = true;
+    filedesc->superextended = false;
+  }
+  else if( infile.substr(infile.size()-4) == "sdat" ) {
+    filedesc->extended = true;
+    filedesc->superextended = true;
+  }
   else
     return false;
 
@@ -98,8 +132,6 @@ bool configcache::isValidInFile(const string& infile, infiledesc *filedesc)
 	    return false;
 	  break;
 	case 2:
-	  if (atoi(inParts) < NEQUI)
-	    filedesc->doVirtualEquilibration = true;
 	  filedesc->nequi = atoi(inParts);
 	  break;
 	case 3: 
@@ -114,7 +146,7 @@ bool configcache::isValidInFile(const string& infile, infiledesc *filedesc)
 
   delete[] inchar;
 
-  if( truncIn.find( getFileId(NEQUI, true) + "_" ) == string::npos ) return false;
+  if( truncIn.find( getFileId(NEQUI, filedesc->superextended, true) + "_" ) == string::npos ) return false;
 
   return true;
 }
@@ -178,13 +210,11 @@ void * configcache::getHeader(const string& headerid) {
   return NULL;
 }
 
-/* returns number of equilibration-steps left with new read configuration 
-   or zero if no new configuration was read */
-void configcache::readConfig(bool& readnewconfig, int& nequileft, vector<unsigned long> *excludeFileHashes)
+void configcache::readConfig(bool *readnewconfig, int *nequileft, vector<unsigned long> *excludeFileHashes)
 {
-  readnewconfig = false;
+  *readnewconfig = false;
 
-  if(DATADIR == "" || MODE == CACHE_MODE_DISABLED) return;
+  if( DATADIR == "" || !(MODE==CACHE_MODE_RO||MODE==CACHE_MODE_RW) ) return;
 
   if(refetchDataFiles){
     refetchDataFiles = false;
@@ -197,40 +227,56 @@ void configcache::readConfig(bool& readnewconfig, int& nequileft, vector<unsigne
       int iDidVirtualSkips;
 
       if( (!inFile.is_open()) && inFileIt == inFiles.end() ) {
-	cout << "RETURNING..." << endl;
-	nequileft = nequileft_internal;
+	if (*readnewconfig)
+	  *nequileft = nequileft_internal;
 	return;
       }
 
       while( (!inFile.is_open()) && inFiles.size() > 0 ) {
+	string inFileParaString;
+
 	openFileDesc = *inFileIt;
 
+	if (openFileDesc.nequi < NEQUI)
+	  doVirtualEquilibration = true;
+	else
+	  doVirtualEquilibration = false;
+
+	firstUsedConfig = true;
+
 	if(log) *log << "CCACHE: Opening dat-file: " << inFileIt->filename << endl << flush;
 	inFile.open( (DATADIR + "/" + inFileIt->filename).c_str(), std::ios::binary );
 	
+	if( openFileDesc.superextended ) {
+	  getline( inFile, inFileParaString );
+	  if( inFileParaString != paraString() ) {
+	    if(log) *log << "CCACHE: Parastring does not match. Closing dat-file..." << endl << flush;
+	    inFile.close();
+	  }
+	}
+	
 	inFiles.erase(inFileIt);
 	
 	if( !inFile.is_open() ) continue;
 
-	inBuffer = new boost::iostreams::filtering_istreambuf;
-	inBuffer->push( boost::iostreams::bzip2_decompressor() );
-	inBuffer->push(inFile);
+	ioBuffers->in = new boost::iostreams::filtering_istreambuf;
+	ioBuffers->in->push( boost::iostreams::bzip2_decompressor() );
+	ioBuffers->in->push(inFile);
       }
 
       if( inFile.is_open() ) 
 	{
-	  if (openFileDesc.doVirtualEquilibration) {
+	  if (doVirtualEquilibration) {
 	    if(log) *log << "CCACHE: Trying virtual equilibration." << endl << flush;
-	    openFileDesc.doVirtualEquilibration = false;
+	    doVirtualEquilibration = false;
 	    for (iDidVirtualSkips=0; iDidVirtualSkips < (NEQUI-openFileDesc.nequi)/openFileDesc.nskip; iDidVirtualSkips++) {
 	      if( readFullBlock(tmpConfig, configSize) != configSize || ! inFile.is_open() )
 		break;
 	      else if ( (NEQUI-openFileDesc.nequi) - (iDidVirtualSkips+1)*openFileDesc.nskip < nequileft_internal ) {
 		memcpy(configMem, tmpConfig, configSize);
 		nequileft_internal = NEQUI - openFileDesc.nequi - (iDidVirtualSkips+1)*openFileDesc.nskip;
-		cout << "blabla:" << nequileft_internal << endl;
-		readnewconfig = true;
-		openFileDesc.firstUsedConfig = false;
+		*readnewconfig = true;
+		firstUsedConfig = false;
 	      }
 	    }
 	  }
@@ -238,17 +284,16 @@ void configcache::readConfig(bool& readnewconfig, int& nequileft, vector<unsigne
 	  if( readFullBlock(tmpConfig, configSize) == configSize && inFile.is_open() )
 	    {
 	      memcpy(configMem, tmpConfig, configSize);
-	      readnewconfig = true;
-	      if (openFileDesc.firstUsedConfig) {
-		openFileDesc.firstUsedConfig = false;
-		if (NEQUI < openFileDesc.nequi)
+	      *readnewconfig = true;
+	      if (firstUsedConfig) {
+		firstUsedConfig = false;
+		if (openFileDesc.nequi < NEQUI)
 		  nequileft_internal = NEQUI - openFileDesc.nequi - iDidVirtualSkips*openFileDesc.nskip;
 		else
 		  nequileft_internal = NEQUI - openFileDesc.nequi;
 	      }
 	      nequileft_internal -= openFileDesc.nskip;
-	      cout << "sadasd:" << nequileft_internal << endl;
-	      nequileft = nequileft_internal;
+	      *nequileft = nequileft_internal;
 	      return;
 	    }
 	  else {
@@ -260,46 +305,64 @@ void configcache::readConfig(bool& readnewconfig, int& nequileft, vector<unsigne
 }
 
 void configcache::openOutFile(int actnequi)
-{
+{ 
   time_t secstamp = time(NULL);
+  int iseq=0;
+  
+  while (true) {
+    outFileName.str("");
+    outFileName << DATADIR << "/" << secstamp << "." << iseq << "_" << getFileId(actnequi, true, false) << "_.sdat.tmp";
 
-  outFileName.str("");
-  outFileName << DATADIR << "/" << secstamp << "_" << getFileId(actnequi) << "_.edat.tmp";
+    int tmpfd = open(outFileName.str().c_str(), O_CREAT | O_EXCL, 0644);
 
+    if ( tmpfd != -1 ) {
+      close(tmpfd);
+      break;
+    }
+    else if ( errno != EEXIST ) {
+      if(log) *log << "CCACHE: Could not create cachefile!" << endl << flush;
+      exit(1);
+    }
+
+    iseq++;
+  }
+  
   outFile.open( outFileName.str().c_str(), std::ios::binary );
 
-  outBuffer = new boost::iostreams::filtering_ostreambuf;
-  outBuffer->push(boost::iostreams::bzip2_compressor());
-  outBuffer->push(outFile);
+  outFile << paraString() << endl;
+
+  ioBuffers->out = new boost::iostreams::filtering_ostreambuf;
+  ioBuffers->out->push(boost::iostreams::bzip2_compressor());
+  ioBuffers->out->push(outFile);
 }
 
 void configcache::writeHeader(const string& headerid, const char *header, long unsigned int size, int actnequi) {
   unsigned long headeridhash;
 
-  if( DATADIR == "" || MODE < 2 ) return;
+  if( DATADIR == "" || !(MODE==CACHE_MODE_WO||MODE==CACHE_MODE_RW) ) return;
 
   if(!outFile.is_open())
     openOutFile(actnequi);
 
   headeridhash = hash(headerid);
 
-  boost::iostreams::write(*outBuffer, (char*)&size, sizeof(long unsigned int));
-  boost::iostreams::write(*outBuffer, (char*)&headeridhash, sizeof(unsigned long));
-  boost::iostreams::write(*outBuffer, header, size);
+  boost::iostreams::write(*ioBuffers->out, (char*)&size, sizeof(long unsigned int));
+  boost::iostreams::write(*ioBuffers->out, (char*)&headeridhash, sizeof(unsigned long));
+  boost::iostreams::write(*ioBuffers->out, header, size);
 }
 
 void configcache::writeConfig(int actnequi)
 {
   long unsigned int zeroheader=0;
 
-  if ( DATADIR == "" || MODE < 2 ) return;
+  if ( DATADIR == "" || !(MODE==CACHE_MODE_WO||MODE==CACHE_MODE_RW) ) return;
 
   if ( ! outFile.is_open() )
     openOutFile(actnequi);
   
-  boost::iostreams::write(*outBuffer, (char*)&zeroheader, sizeof(long unsigned int));
+  boost::iostreams::write(*ioBuffers->out, (char*)&zeroheader, sizeof(long unsigned int));
 
-  boost::iostreams::write(*outBuffer, configMem, configSize);
+  boost::iostreams::write(*ioBuffers->out, configMem, configSize);
 }
 
 void configcache::addPara(const string& parid, const double& val){
@@ -316,27 +379,29 @@ int configcache::getParIndex(const string& parid){
 
 void configcache::setPara(const string& parid, const double& value){
   Paras[getParIndex(parid)].val = value;
+
   finishOutFile();
-  if(inBuffer != NULL) { delete inBuffer; inBuffer=NULL; } 
+  if(ioBuffers->in != NULL) { delete ioBuffers->in; ioBuffers->in=NULL; } 
   inFile.close();
   inFiles.clear();
 
   refetchDataFiles = true;
+  nequileft_internal = NEQUI;
 }
 
 configcache::~configcache()
 {
   finishOutFile();
-  delete inBuffer;
-  inBuffer = NULL;
+  delete ioBuffers->in;
+  ioBuffers->in = NULL;
 }
 
 void configcache::finishOutFile()
 {
-  if( outBuffer != NULL )
+  if( ioBuffers->out != NULL )
     {
-      delete outBuffer;
-      outBuffer = NULL;
+      delete ioBuffers->out;
+      ioBuffers->out = NULL;
     }
 
   if( outFile.is_open() )
@@ -363,7 +428,7 @@ int configcache::readDataToMem(char *tmpData, long unsigned int dataSize)
 
   if ( dataSize == 0 ) return 0;
 
-  try { readturn = boost::iostreams::read(*inBuffer, tmpData, dataSize); }
+  try { readturn = boost::iostreams::read(*ioBuffers->in, tmpData, dataSize); }
   catch(boost::iostreams::bzip2_error& error) { 
     if(log) *log << "CCACHE: Caught bzip2 exception with error code: " << error.error() << endl << flush;
     inFile.close();