annotate audioDB.h @ 509:cc2b97d020b1

Code rearrangements to tease apart library code from C++ audioDB code.

There should be precisely no functional changes in this commit.
Instead, the only thing that has happened is that all the abstraction
violation and other horribleness is concentrated in one place: the
include of "audioDB-internals.h" in audioDB.h -- the separation will be
complete once that include can be removed.

This include is necessary because the command-line binary / SOAP server
still does some things directly rather than through an API: not least of
which the operations that have not yet been integrated into the API yet,
but also some messing around with constants, flags and nominally
internal functions.  The intent is to remove as many of these as
possible and think quite hard about the rest.

In the meantime, the library is now much more self-contained: the only
things it uses are in the audioDB_API.h and audioDB-internals.h headers;
thus there are fewer nasty surprises lurking for readers of the code.

The Makefile has been adjusted to take advantage of this rearrangement
in the dependencies.

#ifndef __AUDIODB_H_
#define __AUDIODB_H_

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <string.h>
#include <iostream>
#include <fstream>
#include <set>
#include <map>
#include <string>
#include <math.h>
#include <sys/time.h>
#include <assert.h>
#include <float.h>
#include <signal.h>
#include <gsl/gsl_rng.h>

// includes for LSH indexing
extern "C" {
#include "audioDB_API.h"
}
#include "audioDB-internals.h"
#include "ReporterBase.h"
#include "accumulator.h"
#include "lshlib.h"

// includes for web services
#include "soapH.h"
#include "cmdline.h"

#define MAXSTR ADB_MAXSTR

// Databse PRIMARY commands
#define COM_CREATE "--NEW"
#define COM_INSERT "--INSERT"
#define COM_BATCHINSERT "--BATCHINSERT"
#define COM_QUERY "--QUERY"
#define COM_STATUS "--STATUS"
#define COM_L2NORM "--L2NORM"
#define COM_POWER "--POWER"
#define COM_DUMP "--DUMP"
#define COM_SERVER "--SERVER"
#define COM_INDEX "--INDEX"
#define COM_SAMPLE "--SAMPLE"
#define COM_LISZT "--LISZT"

// parameters
#define COM_CLIENT "--client"
#define COM_DATABASE "--database"
#define COM_QTYPE "--qtype"
#define COM_SEQLEN "--sequencelength"
#define COM_SEQHOP "--sequencehop"
#define COM_POINTNN "--pointnn"
#define COM_RADIUS "--radius"
#define COM_TRACKNN "--resultlength"
#define COM_QPOINT "--qpoint"
#define COM_FEATURES "--features"
#define COM_QUERYKEY "--key"
#define COM_KEYLIST "--keyList"
#define COM_TIMES "--times"
#define COM_QUERYPOWER "--power"
#define COM_RELATIVE_THRESH "--relative-threshold"
#define COM_ABSOLUTE_THRESH "--absolute-threshold"
#define COM_EXHAUSTIVE "--exhaustive"
#define COM_LSH_EXACT "--lsh_exact"
#define COM_NO_UNIT_NORMING "--no_unit_norming"

#define O2_DEFAULT_POINTNN (10U)
#define O2_DEFAULT_TRACKNN  (10U)

//#define O2_DEFAULTDBSIZE (4000000000) // 4GB table size
#define O2_DEFAULTDBSIZE (2000000000) // 2GB table size

#define O2_DEFAULT_DATASIZE (1355U) /* in MB */
#define O2_DEFAULT_NTRACKS (20000U)
#define O2_DEFAULT_DATADIM (9U)

// LIMIT PARAMETERS
#define O2_REALTYPE (double)
#define O2_MAXFILES (1000000U)
#define O2_MAXFILESTR ADB_FILETABLE_ENTRY_SIZE
#define O2_FILETABLE_ENTRY_SIZE ADB_FILETABLE_ENTRY_SIZE
#define O2_TRACKTABLE_ENTRY_SIZE ADB_TRACKTABLE_ENTRY_SIZE
#define O2_HEADERSIZE (sizeof(dbTableHeaderT))
#define O2_MEANNUMVECTORS (1000U)
#define O2_MAXDIM (20000U)
#define O2_MAXNN (1000000U)
#define O2_MAXSEQLEN (8000U)            // maximum feature vectors in a sequence
#define O2_MAXTRACKS (1000000U)           // maximum number of tracks
#define O2_MAXTRACKLEN ADB_LSH_MAXTRACKLEN
#define O2_MAXDOTPRODUCTMEMORY (sizeof(O2_REALTYPE)*O2_MAXSEQLEN*O2_MAXSEQLEN) // 512MB
#define O2_SERIAL_MAX_TRACKBATCH (1000000)
#define O2_LARGE_ADB_SIZE (O2_DEFAULT_DATASIZE+1) // datasize at which features are kept externally (in Mbytes)
#define O2_LARGE_ADB_NTRACKS (O2_DEFAULT_NTRACKS+1) // ntracks at which features are kept externally
#define O2_MAX_VECTORS ( O2_MEANNUMVECTORS * O2_MAXTRACKS )

// Flags
#define O2_FLAG_L2NORM ADB_HEADER_FLAG_L2NORM
#define O2_FLAG_MINMAX (0x2U)
#define O2_FLAG_POWER ADB_HEADER_FLAG_POWER
#define O2_FLAG_TIMES ADB_HEADER_FLAG_TIMES
#define O2_FLAG_LARGE_ADB ADB_HEADER_FLAG_REFERENCES
#define DISPLAY_FLAG(x) (x?"on":"off")

// Query types
#define O2_POINT_QUERY (0x4U)
#define O2_SEQUENCE_QUERY (0x8U)
#define O2_TRACK_QUERY (0x10U)
#define O2_N_SEQUENCE_QUERY (0x20U)
#define O2_ONE_TO_ONE_N_SEQUENCE_QUERY (0x40U)

// Error Codes
#define O2_ERR_KEYNOTFOUND (0xFFFFFF00)

// Macros
#define O2_ACTION(a) (strcmp(command,a)==0)

#define ALIGN_UP(x,w) (((x) + ((1<<w)-1)) & ~((1<<w)-1))
#define ALIGN_DOWN(x,w) ((x) & ~((1<<w)-1))

#define ALIGN_PAGE_UP(x) (((x) + (getpagesize()-1)) & ~(getpagesize()-1))
#define ALIGN_PAGE_DOWN(x) ((x) & ~(getpagesize()-1))

#define ENSURE_STRING(x) ((x) ? (x) : "")

#define CHECKED_MMAP(type, var, start, length) \
  { void *tmp = mmap(0, length, (PROT_READ | (forWrite ? PROT_WRITE : 0)), MAP_SHARED, dbfid, (start)); \
    if(tmp == (void *) -1) { \
      error("mmap error for db table", #var, "mmap"); \
    } \
    var = (type) tmp; \
  }

#define CHECKED_READ(fd, buf, count) \
  { size_t tmpcount = count; \
    ssize_t tmp = read(fd, buf, tmpcount); \
    if(tmp == -1) { \
      error("read error", "", "read"); \
    } else if((size_t) tmp != tmpcount) {	\
      error("short read", ""); \
    } \
  }

#define CHECKED_WRITE(fd, buf, count) \
  { size_t tmpcount = count; \
    ssize_t tmp = write(fd, buf, tmpcount); \
    if(tmp == -1) { \
      error("write error", "", "write"); \
    } else if((size_t) tmp != tmpcount) {	\
      error("short write", ""); \
    } \
  }

#define VERB_LOG(vv, ...) \
  if(verbosity > vv) { \
    fprintf(stderr, __VA_ARGS__); \
    fflush(stderr); \
  }

// We will only use this in a 32-bit address space
// So map the off_t down to 32-bits first
#define INSERT_FILETABLE_STRING(TABLE, STR) \
    strncpy(TABLE + dbH->numFiles*O2_FILETABLE_ENTRY_SIZE, STR, strlen(STR));

#define SAFE_DELETE(PTR) delete PTR; PTR=0;
#define SAFE_DELETE_ARRAY(PTR) delete[] PTR; PTR=0;

extern char* SERVER_ADB_ROOT;
extern char* SERVER_ADB_FEATURE_ROOT;

class audioDB{  
 private:
  gengetopt_args_info args_info;
  unsigned dim;
  const char *dbName;
  const char *inFile;
  const char *hostport;
  const char *key;
  const char* trackFileName;
  std::ifstream *trackFile;
  const char *command;
  const char *output;
  const char *timesFileName;
  std::ifstream *timesFile;
  const char *powerFileName;
  std::ifstream *powerFile;
  const char* adb_root;
  const char* adb_feature_root;

  int powerfd;
  int dbfid;
  int lshfid;
  bool forWrite;
  int infid;
  struct stat statbuf;  
  struct adbheader *dbH;
  struct adb *adb;

  gsl_rng *rng;
  
  char* fileTable;
  unsigned* trackTable;
  double* l2normTable;
  double* timesTable;
  double* powerTable;

  char* featureFileNameTable;
  char* timesFileNameTable;
  char* powerFileNameTable;

  size_t fileTableLength;
  size_t trackTableLength;
  size_t timesTableLength;
  size_t powerTableLength;
  size_t l2normTableLength;

  // Flags and parameters
  unsigned verbosity;   // how much do we want to know?

  unsigned nsamples;

  //off_t size; // given size (for creation)
  unsigned datasize; // size in MB
  unsigned ntracks;
  unsigned datadim;

  unsigned queryType; // point queries default
  unsigned pointNN;   // how many point NNs ?
  unsigned trackNN;   // how many track NNs ?
  unsigned sequenceLength;
  unsigned sequenceHop;
  bool normalizedDistance;
  bool no_unit_norming;
  unsigned queryPoint;
  unsigned usingQueryPoint;
  unsigned usingTimes;
  unsigned usingPower;
  unsigned isClient;
  unsigned isServer;
  unsigned port;
  double timesTol;
  double radius;
  bool query_from_key;
  Uns32T query_from_key_index;
  bool use_absolute_threshold;
  double absolute_threshold;
  bool use_relative_threshold;
  double relative_threshold;
  
  ReporterBase* reporter;  // track/point reporter

  // LISZT parameters
  unsigned lisztOffset;
  unsigned lisztLength;

  // private methods
  void error(const char* a, const char* b = "", const char *sysFunc = 0);

  void insertTimeStamps(unsigned n, std::ifstream* timesFile, double* timesdata);
  void initRNG();
  void initDBHeader(const char *dbName);
  void initInputFile(const char *inFile);
  void initTables(const char* dbName, const char* inFile = 0);
  void initTablesFromKey(const char* dbName, const Uns32T queryIndex);
  void prefix_name(char** const name, const char* prefix);

 public:
  audioDB(const unsigned argc, const char *argv[]);
  audioDB(const unsigned argc, const char *argv[], struct soap *soap, adb__queryResponse *adbQueryResponse);
  audioDB(const unsigned argc, const char *argv[], adb__statusResponse *adbStatusResponse);
  audioDB(const unsigned argc, const char *argv[], adb__lisztResponse *adbLisztResponse);

  void cleanup();
  ~audioDB();
  int processArgs(const unsigned argc, const char* argv[]);
  void get_lock(int fd, bool exclusive);
  void release_lock(int fd);
  void create(const char* dbName);
  void insert(const char* dbName, const char* inFile);
  void batchinsert(const char* dbName, const char* inFile);
  void query(const char* dbName, const char* inFile, struct soap *soap=0, adb__queryResponse *adbQueryResponse=0);
  void status(const char* dbName, adb__statusResponse *adbStatusResponse=0);

  unsigned random_track(unsigned *propTable, unsigned total);
  void sample(const char *dbName);
  void l2norm(const char* dbName);
  void power_flag(const char *dbName);
  void dump(const char* dbName);
  void liszt(const char* dbName, unsigned offset, unsigned numLines, adb__lisztResponse* adbLisztResponse=0);

  // LSH indexing parameters and data structures
  LSH* lsh;
  bool lsh_in_core;     // load LSH tables for query into core (true) or keep on disk (false)
  bool lsh_use_u_functions;
  bool lsh_exact;      // flag to indicate use exact evaluation of points returned by LSH
  bool WS_load_index; // flag to indicate that we want to make a Web Services index memory resident
  double lsh_param_w; // Width of LSH hash-function bins
  Uns32T lsh_param_k; // Number of independent hash functions
  Uns32T lsh_param_m; // Combinatorial parameter for m(m-1)/2 hash tables
  Uns32T lsh_param_N; // Number of rows per hash table
  Uns32T lsh_param_b; // Batch size, in number of tracks, per indexing iteration
  Uns32T lsh_param_ncols; // Maximum number of collision in a hash-table row

  // LSH indexing and retrieval methods  
  void index_index_db(const char* dbName);
  void index_initialize(double**,double**,double**,double**,unsigned int*);
  void index_insert_tracks(Uns32T start_track, Uns32T end_track, double** fvpp, double** sNormpp,double** snPtrp, double** sPowerp, double** spPtrp);
  int index_insert_track(Uns32T trackID, double** fvpp, double** snpp, double** sppp);
  Uns32T index_insert_shingles(vector<vector<float> >*, Uns32T trackID, double* spp);
  void insertPowerData(unsigned n, int powerfd, double *powerdata);
  void init_track_aux_data(Uns32T trackID, double* fvp, double** sNormpp,double** snPtrp, double** sPowerp, double** spPtrp);
  
  // Web Services
  void startServer();

  void ws_status(const char*dbName, char* hostport);
  void ws_query(const char*dbName, const char *featureFileName, const char* hostport);
  void ws_query_by_key(const char*dbName, const char *trackKey, const char* featureFileName, const char* hostport);
  void ws_liszt(const char* dbName, char* hostport);

};

#define O2_AUDIODB_INITIALIZERS			\
  dim(0),					\
    dbName(0),					\
    inFile(0),					\
    key(0),					\
    trackFileName(0),				\
    trackFile(0),				\
    command(0),					\
    output(0),					\
    timesFileName(0),				\
    timesFile(0),				\
    powerFileName(0),				\
    powerFile(0),				\
    adb_root(0),                                \
    adb_feature_root(0),                        \
    powerfd(0),                                 \
    dbfid(0),					\
    lshfid(0),					\
    forWrite(false),				\
    infid(0),					\
    dbH(0),					\
    adb(0),                                     \
    rng(0),                                     \
    fileTable(0),				\
    trackTable(0),				\
    l2normTable(0),				\
    timesTable(0),				\
    powerTable(0),                              \
    featureFileNameTable(0),                    \
    timesFileNameTable(0),                      \
    powerFileNameTable(0),                      \
    fileTableLength(0),				\
    trackTableLength(0),			\
    timesTableLength(0),			\
    powerTableLength(0),			\
    l2normTableLength(0),			\
    verbosity(1),				\
    nsamples(2000),                             \
    datasize(O2_DEFAULT_DATASIZE),              \
    ntracks(O2_DEFAULT_NTRACKS),                \
    datadim(O2_DEFAULT_DATADIM),                \
    queryType(O2_POINT_QUERY),			\
    pointNN(O2_DEFAULT_POINTNN),		\
    trackNN(O2_DEFAULT_TRACKNN),		\
    sequenceLength(16),				\
    sequenceHop(1),				\
    normalizedDistance(true),			\
    no_unit_norming(false),                     \
    queryPoint(0),				\
    usingQueryPoint(0),				\
    usingTimes(0),				\
    usingPower(0),				\
    isClient(0),				\
    isServer(0),				\
    port(0),					\
    timesTol(0.1),				\
    radius(0),					\
    query_from_key(false),                      \
    query_from_key_index((uint32_t) -1),        \
    use_absolute_threshold(false),		\
    absolute_threshold(0.0),			\
    use_relative_threshold(false),		\
    relative_threshold(0.0),			\
    reporter(0),                                \
    lisztOffset(0),                             \
    lisztLength(0),                             \
    lsh(0),					\
    lsh_in_core(false),				\
    lsh_use_u_functions(false),                 \
    lsh_exact(false),                           \
    WS_load_index(false),                       \
    lsh_param_k(0),				\
    lsh_param_m(0),				\
    lsh_param_N(0),				\
    lsh_param_b(0),				\
    lsh_param_ncols(0)
#endif