comparison audioDB.cpp @ 181:c22d53219112 no-big-mmap

inserting the data vectors goes through lseek()/write()

 
 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))

   dbH->length+=(statbuf.st_size-sizeof(int));
 
   // Update track to file index map
   memcpy (trackTable+dbH->numFiles-1, &numVectors, sizeof(unsigned));  
 
-  // Update the feature database
-  memcpy (((char *) dataBuf) + insertoffset, indata+sizeof(int), statbuf.st_size-sizeof(int));
+  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*)(((char *) dataBuf) + insertoffset), dbH->dim, numVectors, 1); // append
 

 	dbH->length+=(statbuf.st_size-sizeof(int));
   
 	// Update track to file index map
 	memcpy (trackTable+dbH->numFiles-1, &numVectors, sizeof(unsigned));  
 	
-	// Update the feature database
+	insert_data_vectors(insertoffset, indata + sizeof(int), statbuf.st_size - sizeof(int));
+	
 	memcpy (((char *) dataBuf) + 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*)(((char *) dataBuf) + insertoffset), dbH->dim, numVectors, 1); // append