tcbmgr.c

高性能嵌入式数据库在高并发的环境下使用最好是64位系统比较好

      } else if(!strcmp(argv[i], "-ci")){
        cmp = tcbdbcmpint32;
      } else if(!strcmp(argv[i], "-cj")){
        cmp = tcbdbcmpint64;
      } else if(!strcmp(argv[i], "-tl")){
        if(opts == UINT8_MAX) opts = 0;
        opts |= BDBTLARGE;
      } else if(!strcmp(argv[i], "-td")){
        if(opts == UINT8_MAX) opts = 0;
        opts |= BDBTDEFLATE;
      } else if(!strcmp(argv[i], "-tb")){
        if(opts == UINT8_MAX) opts = 0;
        opts |= BDBTBZIP;
      } else if(!strcmp(argv[i], "-tt")){
        if(opts == UINT8_MAX) opts = 0;
        opts |= BDBTTCBS;
      } else if(!strcmp(argv[i], "-tx")){
        if(opts == UINT8_MAX) opts = 0;
        opts |= BDBTEXCODEC;
      } else if(!strcmp(argv[i], "-tz")){
        if(opts == UINT8_MAX) opts = 0;
      } else if(!strcmp(argv[i], "-nl")){
        omode |= BDBONOLCK;
      } else if(!strcmp(argv[i], "-nb")){
        omode |= BDBOLCKNB;
      } else {
        usage();
      }
    } else if(!path){
      path = argv[i];
    } else if(!lmstr){
      lmstr = argv[i];
    } else if(!nmstr){
      nmstr = argv[i];
    } else if(!bstr){
      bstr = argv[i];
    } else if(!astr){
      astr = argv[i];
    } else if(!fstr){
      fstr = argv[i];
    } else {
      usage();
    }
  }
  if(!path) usage();
  int lmemb = lmstr ? tcatoi(lmstr) : -1;
  int nmemb = nmstr ? tcatoi(nmstr) : -1;
  int bnum = bstr ? tcatoi(bstr) : -1;
  int apow = astr ? tcatoi(astr) : -1;
  int fpow = fstr ? tcatoi(fstr) : -1;
  int rv = procoptimize(path, lmemb, nmemb, bnum, apow, fpow, cmp, opts, omode);
  return rv;
}


/* parse arguments of importtsv command */
static int runimporttsv(int argc, char **argv){
  char *path = NULL;
  char *file = NULL;
  int omode = 0;
  bool sc = false;
  for(int i = 2; i < argc; i++){
    if(!path && argv[i][0] == '-'){
      if(!strcmp(argv[i], "-nl")){
        omode |= BDBONOLCK;
      } else if(!strcmp(argv[i], "-nb")){
        omode |= BDBOLCKNB;
      } else if(!strcmp(argv[i], "-sc")){
        sc = true;
      } else {
        usage();
      }
    } else if(!path){
      path = argv[i];
    } else if(!file){
      file = argv[i];
    } else {
      usage();
    }
  }
  if(!path) usage();
  int rv = procimporttsv(path, file, omode, sc);
  return rv;
}


/* parse arguments of version command */
static int runversion(int argc, char **argv){
  int rv = procversion();
  return rv;
}


/* perform create command */
static int proccreate(const char *path, int lmemb, int nmemb,
                      int bnum, int apow, int fpow, BDBCMP cmp, int opts){
  TCBDB *bdb = tcbdbnew();
  if(g_dbgfd >= 0) tcbdbsetdbgfd(bdb, g_dbgfd);
  if(cmp && !tcbdbsetcmpfunc(bdb, cmp, NULL)) printerr(bdb);
  if(!tcbdbsetcodecfunc(bdb, _tc_recencode, NULL, _tc_recdecode, NULL)) printerr(bdb);
  if(!tcbdbtune(bdb, lmemb, nmemb, bnum, apow, fpow, opts)){
    printerr(bdb);
    tcbdbdel(bdb);
    return 1;
  }
  if(!tcbdbopen(bdb, path, BDBOWRITER | BDBOCREAT | BDBOTRUNC)){
    printerr(bdb);
    tcbdbdel(bdb);
    return 1;
  }
  bool err = false;
  if(!tcbdbclose(bdb)){
    printerr(bdb);
    err = true;
  }
  tcbdbdel(bdb);
  return err ? 1 : 0;
}


/* perform inform command */
static int procinform(const char *path, int omode){
  TCBDB *bdb = tcbdbnew();
  if(g_dbgfd >= 0) tcbdbsetdbgfd(bdb, g_dbgfd);
  tcbdbsetcmpfunc(bdb, mycmpfunc, NULL);
  tcbdbsetcodecfunc(bdb, _tc_recencode, NULL, _tc_recdecode, NULL);
  if(!tcbdbopen(bdb, path, BDBOREADER | omode)){
    printerr(bdb);
    tcbdbdel(bdb);
    return 1;
  }
  bool err = false;
  const char *npath = tcbdbpath(bdb);
  if(!npath) npath = "(unknown)";
  printf("path: %s\n", npath);
  printf("database type: btree\n");
  uint8_t flags = tcbdbflags(bdb);
  printf("additional flags:");
  if(flags & BDBFOPEN) printf(" open");
  if(flags & BDBFFATAL) printf(" fatal");
  printf("\n");
  BDBCMP cmp = tcbdbcmpfunc(bdb);
  printf("comparison function: ");
  if(cmp == tcbdbcmplexical){
    printf("lexical");
  } else if(cmp == tcbdbcmpdecimal){
    printf("decimal");
  } else if(cmp == tcbdbcmpint32){
    printf("int32");
  } else if(cmp == tcbdbcmpint64){
    printf("int64");
  } else {
    printf("custom");
  }
  printf("\n");
  printf("max leaf member: %d\n", tcbdblmemb(bdb));
  printf("max node member: %d\n", tcbdbnmemb(bdb));
  printf("leaf number: %llu\n", (unsigned long long)tcbdblnum(bdb));
  printf("node number: %llu\n", (unsigned long long)tcbdbnnum(bdb));
  printf("bucket number: %llu\n", (unsigned long long)tcbdbbnum(bdb));
  if(bdb->hdb->cnt_writerec >= 0)
    printf("used bucket number: %lld\n", (long long)tcbdbbnumused(bdb));
  printf("alignment: %u\n", tcbdbalign(bdb));
  printf("free block pool: %u\n", tcbdbfbpmax(bdb));
  printf("inode number: %lld\n", (long long)tcbdbinode(bdb));
  char date[48];
  tcdatestrwww(tcbdbmtime(bdb), INT_MAX, date);
  printf("modified time: %s\n", date);
  uint8_t opts = tcbdbopts(bdb);
  printf("options:");
  if(opts & BDBTLARGE) printf(" large");
  if(opts & BDBTDEFLATE) printf(" deflate");
  if(opts & BDBTBZIP) printf(" bzip");
  if(opts & BDBTTCBS) printf(" tcbs");
  if(opts & BDBTEXCODEC) printf(" excodec");
  printf("\n");
  printf("record number: %llu\n", (unsigned long long)tcbdbrnum(bdb));
  printf("file size: %llu\n", (unsigned long long)tcbdbfsiz(bdb));
  if(!tcbdbclose(bdb)){
    if(!err) printerr(bdb);
    err = true;
  }
  tcbdbdel(bdb);
  return err ? 1 : 0;
}


/* perform put command */
static int procput(const char *path, const char *kbuf, int ksiz, const char *vbuf, int vsiz,
                   BDBCMP cmp, int omode, int dmode){
  TCBDB *bdb = tcbdbnew();
  if(g_dbgfd >= 0) tcbdbsetdbgfd(bdb, g_dbgfd);
  if(cmp && !tcbdbsetcmpfunc(bdb, cmp, NULL)) printerr(bdb);
  if(!tcbdbsetcodecfunc(bdb, _tc_recencode, NULL, _tc_recdecode, NULL)) printerr(bdb);
  if(!tcbdbopen(bdb, path, BDBOWRITER | omode)){
    printerr(bdb);
    tcbdbdel(bdb);
    return 1;
  }
  bool err = false;
  switch(dmode){
  case -1:
    if(!tcbdbputkeep(bdb, kbuf, ksiz, vbuf, vsiz)){
      printerr(bdb);
      err = true;
    }
    break;
  case 1:
    if(!tcbdbputcat(bdb, kbuf, ksiz, vbuf, vsiz)){
      printerr(bdb);
      err = true;
    }
    break;
  case 2:
    if(!tcbdbputdup(bdb, kbuf, ksiz, vbuf, vsiz)){
      printerr(bdb);
      err = true;
    }
    break;
  case 3:
    if(!tcbdbputdupback(bdb, kbuf, ksiz, vbuf, vsiz)){
      printerr(bdb);
      err = true;
    }
    break;
  default:
    if(!tcbdbput(bdb, kbuf, ksiz, vbuf, vsiz)){
      printerr(bdb);
      err = true;
    }
    break;
  }
  if(!tcbdbclose(bdb)){
    if(!err) printerr(bdb);
    err = true;
  }
  tcbdbdel(bdb);
  return err ? 1 : 0;
}


/* perform out command */
static int procout(const char *path, const char *kbuf, int ksiz, BDBCMP cmp, int omode){
  TCBDB *bdb = tcbdbnew();
  if(g_dbgfd >= 0) tcbdbsetdbgfd(bdb, g_dbgfd);
  if(cmp && !tcbdbsetcmpfunc(bdb, cmp, NULL)) printerr(bdb);
  if(!tcbdbsetcodecfunc(bdb, _tc_recencode, NULL, _tc_recdecode, NULL)) printerr(bdb);
  if(!tcbdbopen(bdb, path, BDBOWRITER | omode)){
    printerr(bdb);
    tcbdbdel(bdb);
    return 1;
  }
  bool err = false;
  if(!tcbdbout(bdb, kbuf, ksiz)){
    printerr(bdb);
    err = true;
  }
  if(!tcbdbclose(bdb)){
    if(!err) printerr(bdb);
    err = true;
  }
  tcbdbdel(bdb);
  return err ? 1 : 0;
}


/* perform get command */
static int procget(const char *path, const char *kbuf, int ksiz, BDBCMP cmp, int omode,
                   bool px, bool pz){
  TCBDB *bdb = tcbdbnew();
  if(g_dbgfd >= 0) tcbdbsetdbgfd(bdb, g_dbgfd);
  if(cmp && !tcbdbsetcmpfunc(bdb, cmp, NULL)) printerr(bdb);
  if(!tcbdbsetcodecfunc(bdb, _tc_recencode, NULL, _tc_recdecode, NULL)) printerr(bdb);
  if(!tcbdbopen(bdb, path, BDBOREADER | omode)){
    printerr(bdb);
    tcbdbdel(bdb);
    return 1;
  }
  bool err = false;
  int vsiz;
  char *vbuf = tcbdbget(bdb, kbuf, ksiz, &vsiz);
  if(vbuf){
    printdata(vbuf, vsiz, px);
    if(!pz) putchar('\n');
    tcfree(vbuf);
  } else {
    printerr(bdb);
    err = true;
  }
  if(!tcbdbclose(bdb)){
    if(!err) printerr(bdb);
    err = true;
  }
  tcbdbdel(bdb);
  return err ? 1 : 0;
}


/* perform list command */
static int proclist(const char *path, BDBCMP cmp, int omode, int max, bool pv, bool px, bool bk,
                    const char *jstr, const char *bstr, const char *estr, const char *fmstr){
  TCBDB *bdb = tcbdbnew();
  if(g_dbgfd >= 0) tcbdbsetdbgfd(bdb, g_dbgfd);
  if(cmp && !tcbdbsetcmpfunc(bdb, cmp, NULL)) printerr(bdb);
  if(!tcbdbsetcodecfunc(bdb, _tc_recencode, NULL, _tc_recdecode, NULL)) printerr(bdb);
  if(!tcbdbopen(bdb, path, BDBOREADER | omode)){
    printerr(bdb);
    tcbdbdel(bdb);
    return 1;
  }
  bool err = false;
  if(bstr || fmstr){
    TCLIST *keys = fmstr ? tcbdbfwmkeys2(bdb, fmstr, max) :
      tcbdbrange(bdb, bstr, strlen(bstr), true, estr, strlen(estr), true, max);
    int cnt = 0;
    for(int i = 0; i < tclistnum(keys); i++){
      int ksiz;
      const char *kbuf = tclistval(keys, i, &ksiz);
      if(pv){
        TCLIST *vals = tcbdbget4(bdb, kbuf, ksiz);
        if(vals){
          for(int j = 0; j < tclistnum(vals); j++){
            int vsiz;
            const char *vbuf = tclistval(vals, j, &vsiz);
            printdata(kbuf, ksiz, px);
            putchar('\t');
            printdata(vbuf, vsiz, px);
            putchar('\n');
            if(max >= 0 && ++cnt >= max) break;
          }
          tclistdel(vals);
        }
      } else {
        int num = tcbdbvnum(bdb, kbuf, ksiz);
        for(int j = 0; j < num; j++){
          printdata(kbuf, ksiz, px);
          putchar('\n');
          if(max >= 0 && ++cnt >= max) break;
        }
      }
      if(max >= 0 && cnt >= max) break;
    }
    tclistdel(keys);
  } else {
    BDBCUR *cur = tcbdbcurnew(bdb);
    if(bk){
      if(jstr){
        if(!tcbdbcurjumpback(cur, jstr, strlen(jstr)) && tcbdbecode(bdb) != TCENOREC){
          printerr(bdb);
          err = true;
        }
      } else {
        if(!tcbdbcurlast(cur) && tcbdbecode(bdb) != TCENOREC){
          printerr(bdb);
          err = true;
        }
      }
    } else {
      if(jstr){
        if(!tcbdbcurjump(cur, jstr, strlen(jstr)) && tcbdbecode(bdb) != TCENOREC){
          printerr(bdb);
          err = true;
        }
      } else {
        if(!tcbdbcurfirst(cur) && tcbdbecode(bdb) != TCENOREC){
          printerr(bdb);
          err = true;
        }
      }
    }
    TCXSTR *key = tcxstrnew();
    TCXSTR *val = tcxstrnew();
    int cnt = 0;
    while(tcbdbcurrec(cur, key, val)){
      printdata(tcxstrptr(key), tcxstrsize(key), px);
      if(pv){
        putchar('\t');
        printdata(tcxstrptr(val), tcxstrsize(val), px);
      }
      putchar('\n');
      if(bk){
        if(!tcbdbcurprev(cur) && tcbdbecode(bdb) != TCENOREC){
          printerr(bdb);
          err = true;
        }
      } else {
        if(!tcbdbcurnext(cur) && tcbdbecode(bdb) != TCENOREC){
          printerr(bdb);
          err = true;
        }
      }
      if(max >= 0 && ++cnt >= max) break;
    }
    tcxstrdel(val);
    tcxstrdel(key);
    tcbdbcurdel(cur);
  }
  if(!tcbdbclose(bdb)){
    if(!err) printerr(bdb);
    err = true;
  }
  tcbdbdel(bdb);
  return err ? 1 : 0;
}


/* perform optimize command */
static int procoptimize(const char *path, int lmemb, int nmemb,
                        int bnum, int apow, int fpow, BDBCMP cmp, int opts, int omode){
  TCBDB *bdb = tcbdbnew();
  if(g_dbgfd >= 0) tcbdbsetdbgfd(bdb, g_dbgfd);
  if(cmp && !tcbdbsetcmpfunc(bdb, cmp, NULL)) printerr(bdb);
  if(!tcbdbsetcodecfunc(bdb, _tc_recencode, NULL, _tc_recdecode, NULL)) printerr(bdb);
  if(!tcbdbopen(bdb, path, BDBOWRITER | omode)){
    printerr(bdb);
    tcbdbdel(bdb);
    return 1;
  }
  bool err = false;
  if(!tcbdboptimize(bdb, lmemb, nmemb, bnum, apow, fpow, opts)){
    printerr(bdb);
    err = true;
  }
  if(!tcbdbclose(bdb)){
    if(!err) printerr(bdb);
    err = true;
  }
  tcbdbdel(bdb);
  return err ? 1 : 0;
}


/* perform importtsv command */
static int procimporttsv(const char *path, const char *file, int omode, bool sc){
  FILE *ifp = file ? fopen(file, "rb") : stdin;
  if(!ifp){
    fprintf(stderr, "%s: could not open\n", file ? file : "(stdin)");
    return 1;
  }
  TCBDB *bdb = tcbdbnew();
  if(g_dbgfd >= 0) tcbdbsetdbgfd(bdb, g_dbgfd);
  if(!tcbdbsetcodecfunc(bdb, _tc_recencode, NULL, _tc_recdecode, NULL)) printerr(bdb);
  if(!tcbdbopen(bdb, path, BDBOWRITER | BDBOCREAT | omode)){
    printerr(bdb);
    tcbdbdel(bdb);
    if(ifp != stdin) fclose(ifp);
    return 1;
  }
  bool err = false;
  char *line;
  int cnt = 0;
  while(!err && (line = mygetline(ifp)) != NULL){
    char *pv = strchr(line, '\t');
    if(!pv){
      tcfree(line);
      continue;
    }
    *pv = '\0';
    if(sc) tcstrtolower(line);
    if(!tcbdbputdup2(bdb, line, pv + 1)){
      printerr(bdb);
      err = true;
    }
    tcfree(line);
    if(cnt > 0 && cnt % 100 == 0){
      putchar('.');
      fflush(stdout);
      if(cnt % 5000 == 0) printf(" (%08d)\n", cnt);
    }
    cnt++;
  }
  printf(" (%08d)\n", cnt);
  if(!tcbdbclose(bdb)){
    if(!err) printerr(bdb);
    err = true;
  }
  tcbdbdel(bdb);
  if(ifp != stdin) fclose(ifp);
  return err ? 1 : 0;
}


/* perform version command */
static int procversion(void){
  printf("Tokyo Cabinet version %s (%d:%s)\n", tcversion, _TC_LIBVER, _TC_FORMATVER);
  printf("Copyright (C) 2006-2008 Mikio Hirabayashi\n");
  return 0;
}



// END OF FILE