view insert.cpp @ 205:9fcc8e97c86f refactoring

Minor makefile improvement

#include "audioDB.h"

bool audioDB::enough_data_space_free(off_t size) {
  return(dbH->timesTableOffset > dbH->dataOffset + dbH->length + size);
}

void audioDB::insert_data_vectors(off_t offset, void *buffer, size_t size) {
  lseek(dbfid, dbH->dataOffset + offset, SEEK_SET);
  write(dbfid, buffer, size);
}

void audioDB::insert(const char* dbName, const char* inFile) {
  forWrite = true;
  initTables(dbName, inFile);

  if(!usingTimes && (dbH->flags & O2_FLAG_TIMES))
    error("Must use timestamps with timestamped database","use --times");

  if(!usingPower && (dbH->flags & O2_FLAG_POWER))
    error("Must use power with power-enabled database", dbName);

  if(!enough_data_space_free(statbuf.st_size - sizeof(int))) {
    error("Insert failed: no more room in database", inFile);
  }

  if(!key)
    key=inFile;
  // Linear scan of filenames check for pre-existing feature
  unsigned alreadyInserted=0;
  for(unsigned k=0; k<dbH->numFiles; k++)
    if(strncmp(fileTable + k*O2_FILETABLESIZE, key, strlen(key)+1)==0){
      alreadyInserted=1;
      break;
    }

  if(alreadyInserted){
    if(verbosity) {
      std::cerr << "Warning: key already exists in database, ignoring: " <<inFile << std::endl;
    }
    return;
  }
  
  // Make a track index table of features to file indexes
  unsigned numVectors = (statbuf.st_size-sizeof(int))/(sizeof(double)*dbH->dim);
  if(!numVectors){
    if(verbosity) {
      std::cerr << "Warning: ignoring zero-length feature vector file:" << key << std::endl;
    }
    // CLEAN UP
    munmap(indata,statbuf.st_size);
    munmap(db,dbH->dbSize);
    close(infid);
    return;
  }

  strncpy(fileTable + dbH->numFiles*O2_FILETABLESIZE, key, strlen(key));

  off_t insertoffset = dbH->length;// Store current state

  // Check times status and insert times from file
  unsigned indexoffset = insertoffset/(dbH->dim*sizeof(double));
  double *timesdata = timesTable + 2*indexoffset;

  if(2*(indexoffset + numVectors) > timesTableLength) {
    error("out of space for times", key);
  }
  
  if (usingTimes) {
    insertTimeStamps(numVectors, timesFile, timesdata);
  }

  double *powerdata = powerTable + indexoffset;
  insertPowerData(numVectors, powerfd, powerdata);

  // Increment file count
  dbH->numFiles++;

  // Update Header information
  dbH->length+=(statbuf.st_size-sizeof(int));

  // Update track to file index map
  memcpy(trackTable + dbH->numFiles - 1, &numVectors, sizeof(unsigned));  

  insert_data_vectors(insertoffset, indata + sizeof(int), statbuf.st_size - sizeof(int));
  
  // Norm the vectors on input if the database is already L2 normed
  if(dbH->flags & O2_FLAG_L2NORM)
    unitNormAndInsertL2((double *)(indata + sizeof(int)), dbH->dim, numVectors, 1); // append

  // Report status
  status(dbName);
  if(verbosity) {
    std::cerr << COM_INSERT << " " << dbName << " " << numVectors << " vectors " 
	 << (statbuf.st_size-sizeof(int)) << " bytes." << std::endl;
  }

  // Copy the header back to the database
  memcpy (db, dbH, sizeof(dbTableHeaderT));  

  // CLEAN UP
  munmap(indata,statbuf.st_size);
  close(infid);
}

void audioDB::insertTimeStamps(unsigned numVectors, std::ifstream *timesFile, double *timesdata) {
  assert(usingTimes);

  unsigned numtimes = 0;

  if(!(dbH->flags & O2_FLAG_TIMES) && !dbH->numFiles) {
    dbH->flags=dbH->flags|O2_FLAG_TIMES;
  } else if(!(dbH->flags & O2_FLAG_TIMES)) {
    error("Timestamp file used with non-timestamped database", timesFileName);
  }
   
  if(!timesFile->is_open()) {
    error("problem opening times file on timestamped database", timesFileName);
  }

  double timepoint, next;
  *timesFile >> timepoint;
  if (timesFile->eof()) {
    error("no entries in times file", timesFileName);
  }
  numtimes++;
  do {
    *timesFile >> next;
    if (timesFile->eof()) {
      break;
    }
    numtimes++;
    timesdata[0] = timepoint;
    timepoint = (timesdata[1] = next);
    timesdata += 2;
  } while (numtimes < numVectors + 1);

  if (numtimes < numVectors + 1) {
    error("too few timepoints in times file", timesFileName);
  }

  *timesFile >> next;
  if (!timesFile->eof()) {
    error("too many timepoints in times file", timesFileName);
  }
}

void audioDB::insertPowerData(unsigned numVectors, int powerfd, double *powerdata) {
  if (usingPower) {
    if (!(dbH->flags & O2_FLAG_POWER)) {
      error("Cannot insert power data on non-power DB", dbName);
    }

    int one;
    unsigned int count;

    count = read(powerfd, &one, sizeof(unsigned int));
    if (count != sizeof(unsigned int)) {
      error("powerfd read failed", "int", "read");
    }
    if (one != 1) {
      error("dimensionality of power file not 1", powerFileName);
    }

    // FIXME: should check that the powerfile is the right size for
    // this.  -- CSR, 2007-10-30
    count = read(powerfd, powerdata, numVectors * sizeof(double));
    if (count != numVectors * sizeof(double)) {
      error("powerfd read failed", "double", "read");
    }
  }
}

void audioDB::batchinsert(const char* dbName, const char* inFile) {

  forWrite = true;
  initDBHeader(dbName);

  if(!key)
    key=inFile;
  std::ifstream *filesIn = 0;
  std::ifstream *keysIn = 0;
  std::ifstream* thisTimesFile = 0;
  int thispowerfd = 0;

  if(!(filesIn = new std::ifstream(inFile)))
    error("Could not open batch in file", inFile);
  if(key && key!=inFile)
    if(!(keysIn = new std::ifstream(key)))
      error("Could not open batch key file",key);
  
  if(!usingTimes && (dbH->flags & O2_FLAG_TIMES))
    error("Must use timestamps with timestamped database","use --times");

  if(!usingPower && (dbH->flags & O2_FLAG_POWER))
    error("Must use power with power-enabled database", dbName);

  unsigned totalVectors=0;
  char *thisKey = new char[MAXSTR];
  char *thisFile = new char[MAXSTR];
  char *thisTimesFileName = new char[MAXSTR];
  char *thisPowerFileName = new char[MAXSTR];
  
  do{
    filesIn->getline(thisFile,MAXSTR);
    if(key && key!=inFile)
      keysIn->getline(thisKey,MAXSTR);
    else
      thisKey = thisFile;
    if(usingTimes)
      timesFile->getline(thisTimesFileName,MAXSTR);	  
    if(usingPower)
      powerFile->getline(thisPowerFileName, MAXSTR);
    
    if(filesIn->eof())
      break;

    initInputFile(thisFile);

    if(!enough_data_space_free(statbuf.st_size - sizeof(int))) {
      error("batchinsert failed: no more room in database", thisFile);
    }
    
    // Linear scan of filenames check for pre-existing feature
    unsigned alreadyInserted=0;
  
    for(unsigned k=0; k<dbH->numFiles; k++)
      if(strncmp(fileTable + k*O2_FILETABLESIZE, thisKey, strlen(thisKey)+1)==0){
	alreadyInserted=1;
	break;
      }
  
    if(alreadyInserted){
      if(verbosity) {
	std::cerr << "Warning: key already exists in database:" << thisKey << std::endl;
      }
    }
    else{
  
      // Make a track index table of features to file indexes
      unsigned numVectors = (statbuf.st_size-sizeof(int))/(sizeof(double)*dbH->dim);
      if(!numVectors){
	if(verbosity) {
	  std::cerr << "Warning: ignoring zero-length feature vector file:" << thisKey << std::endl;
        }
      }
      else{
	if(usingTimes){
	  if(timesFile->eof()) {
	    error("not enough timestamp files in timesList", timesFileName);
	  }
	  thisTimesFile = new std::ifstream(thisTimesFileName,std::ios::in);
	  if(!thisTimesFile->is_open()) {
	    error("Cannot open timestamp file", thisTimesFileName);
	  }
	  off_t insertoffset = dbH->length;
	  unsigned indexoffset = insertoffset / (dbH->dim*sizeof(double));
	  double *timesdata = timesTable + 2*indexoffset;
          if(2*(indexoffset + numVectors) > timesTableLength) {
            error("out of space for times", key);
          }
	  insertTimeStamps(numVectors, thisTimesFile, timesdata);
	  if(thisTimesFile)
	    delete thisTimesFile;
	}
        
        if (usingPower) {
          if(powerFile->eof()) {
            error("not enough power files in powerList", powerFileName);
          }
          thispowerfd = open(thisPowerFileName, O_RDONLY);
          if (thispowerfd < 0) {
            error("failed to open power file", thisPowerFileName);
          }
          unsigned insertoffset = dbH->length;
          unsigned poweroffset = insertoffset / (dbH->dim * sizeof(double));
          double *powerdata = powerTable + poweroffset;
          insertPowerData(numVectors, thispowerfd, powerdata);
          if (0 < thispowerfd) {
            close(thispowerfd);
          }
        }
	strncpy(fileTable + dbH->numFiles*O2_FILETABLESIZE, thisKey, strlen(thisKey));
  
	off_t insertoffset = dbH->length;// Store current state

	// Increment file count
	dbH->numFiles++;  
  
	// Update Header information
	dbH->length+=(statbuf.st_size-sizeof(int));
  
	// Update track to file index map
	memcpy (trackTable+dbH->numFiles-1, &numVectors, sizeof(unsigned));  
	
	insert_data_vectors(insertoffset, indata + sizeof(int), statbuf.st_size - sizeof(int));
	
	// Norm the vectors on input if the database is already L2 normed
	if(dbH->flags & O2_FLAG_L2NORM)
	  unitNormAndInsertL2((double *)(indata + sizeof(int)), dbH->dim, numVectors, 1); // append
	
	totalVectors+=numVectors;

	// Copy the header back to the database
	memcpy (db, dbH, sizeof(dbTableHeaderT));  
      }
    }
    // CLEAN UP
    munmap(indata,statbuf.st_size);
    close(infid);
  }while(!filesIn->eof());

  if(verbosity) {
    std::cerr << COM_BATCHINSERT << " " << dbName << " " << totalVectors << " vectors " 
	 << totalVectors*dbH->dim*sizeof(double) << " bytes." << std::endl;
  }
  
  // Report status
  status(dbName);
}