tcfmgr.c

Tokyo Cabinet的Tokyo Cabinet 是一个DBM的实现。这里的数据库由一系列key-value对的记录构成。key和value都可以是任意长度的字节序列,既可以是二进制也可以是字符

/*************************************************************************************************
 * The command line utility of the fixed-length database API
 *                                                      Copyright (C) 2006-2009 Mikio Hirabayashi
 * This file is part of Tokyo Cabinet.
 * Tokyo Cabinet is free software; you can redistribute it and/or modify it under the terms of
 * the GNU Lesser General Public License as published by the Free Software Foundation; either
 * version 2.1 of the License or any later version.  Tokyo Cabinet is distributed in the hope
 * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 * License for more details.
 * You should have received a copy of the GNU Lesser General Public License along with Tokyo
 * Cabinet; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA.
 *************************************************************************************************/


#include <tcutil.h>
#include <tcfdb.h>
#include "myconf.h"


/* global variables */
const char *g_progname;                  // program name
int g_dbgfd;                             // debugging output


/* function prototypes */
int main(int argc, char **argv);
static void usage(void);
static void printerr(TCFDB *fdb);
static int printdata(const char *ptr, int size, bool px);
static char *mygetline(FILE *ifp);
static int runcreate(int argc, char **argv);
static int runinform(int argc, char **argv);
static int runput(int argc, char **argv);
static int runout(int argc, char **argv);
static int runget(int argc, char **argv);
static int runlist(int argc, char **argv);
static int runoptimize(int argc, char **argv);
static int runimporttsv(int argc, char **argv);
static int runversion(int argc, char **argv);
static int proccreate(const char *path, int width, int64_t limsiz);
static int procinform(const char *path, int omode);
static int procput(const char *path, const char *kbuf, int ksiz, const char *vbuf, int vsiz,
                   int omode, int dmode);
static int procout(const char *path, const char *kbuf, int ksiz, int omode);
static int procget(const char *path, const char *kbuf, int ksiz, int omode, bool px, bool pz);
static int proclist(const char *path, int omode, int max, bool pv, bool px,
                    const char *rlstr, const char *rustr, const char *ristr);
static int procoptimize(const char *path, int width, int64_t limsiz, int omode);
static int procimporttsv(const char *path, const char *file, int omode, bool sc);
static int procversion(void);


/* main routine */
int main(int argc, char **argv){
  g_progname = argv[0];
  g_dbgfd = -1;
  const char *ebuf = getenv("TCDBGFD");
  if(ebuf) g_dbgfd = tcatoix(ebuf);
  if(argc < 2) usage();
  int rv = 0;
  if(!strcmp(argv[1], "create")){
    rv = runcreate(argc, argv);
  } else if(!strcmp(argv[1], "inform")){
    rv = runinform(argc, argv);
  } else if(!strcmp(argv[1], "put")){
    rv = runput(argc, argv);
  } else if(!strcmp(argv[1], "out")){
    rv = runout(argc, argv);
  } else if(!strcmp(argv[1], "get")){
    rv = runget(argc, argv);
  } else if(!strcmp(argv[1], "list")){
    rv = runlist(argc, argv);
  } else if(!strcmp(argv[1], "optimize")){
    rv = runoptimize(argc, argv);
  } else if(!strcmp(argv[1], "importtsv")){
    rv = runimporttsv(argc, argv);
  } else if(!strcmp(argv[1], "version") || !strcmp(argv[1], "--version")){
    rv = runversion(argc, argv);
  } else {
    usage();
  }
  return rv;
}


/* print the usage and exit */
static void usage(void){
  fprintf(stderr, "%s: the command line utility of the fixed-length database API\n", g_progname);
  fprintf(stderr, "\n");
  fprintf(stderr, "usage:\n");
  fprintf(stderr, "  %s create path [width [limsiz]]\n", g_progname);
  fprintf(stderr, "  %s inform [-nl|-nb] path\n", g_progname);
  fprintf(stderr, "  %s put [-nl|-nb] [-sx] [-dk|-dc|-dai|-dad] path key value\n", g_progname);
  fprintf(stderr, "  %s out [-nl|-nb] [-sx] path key\n", g_progname);
  fprintf(stderr, "  %s get [-nl|-nb] [-sx] [-px] [-pz] path key\n", g_progname);
  fprintf(stderr, "  %s list [-nl|-nb] [-m num] [-pv] [-px] [-rb lkey ukey] [-ri str] path\n",
          g_progname);
  fprintf(stderr, "  %s optimize [-nl|-nb] path [width [limsiz]]\n", g_progname);
  fprintf(stderr, "  %s importtsv [-nl|-nb] [-sc] path [file]\n", g_progname);
  fprintf(stderr, "  %s version\n", g_progname);
  fprintf(stderr, "\n");
  exit(1);
}


/* print error information */
static void printerr(TCFDB *fdb){
  const char *path = tcfdbpath(fdb);
  int ecode = tcfdbecode(fdb);
  fprintf(stderr, "%s: %s: %d: %s\n", g_progname, path ? path : "-", ecode, tcfdberrmsg(ecode));
}


/* print record data */
static int printdata(const char *ptr, int size, bool px){
  int len = 0;
  while(size-- > 0){
    if(px){
      if(len > 0) putchar(' ');
      len += printf("%02X", *(unsigned char *)ptr);
    } else {
      putchar(*ptr);
      len++;
    }
    ptr++;
  }
  return len;
}


/* read a line from a file descriptor */
static char *mygetline(FILE *ifp){
  int len = 0;
  int blen = 1024;
  char *buf = tcmalloc(blen);
  bool end = true;
  int c;
  while((c = fgetc(ifp)) != EOF){
    end = false;
    if(c == '\0') continue;
    if(blen <= len){
      blen *= 2;
      buf = tcrealloc(buf, blen + 1);
    }
    if(c == '\n' || c == '\r') c = '\0';
    buf[len++] = c;
    if(c == '\0') break;
  }
  if(end){
    tcfree(buf);
    return NULL;
  }
  buf[len] = '\0';
  return buf;
}


/* parse arguments of create command */
static int runcreate(int argc, char **argv){
  char *path = NULL;
  char *wstr = NULL;
  char *lstr = NULL;
  for(int i = 2; i < argc; i++){
    if(!path && argv[i][0] == '-'){
      usage();
    } else if(!path){
      path = argv[i];
    } else if(!wstr){
      wstr = argv[i];
    } else if(!lstr){
      lstr = argv[i];
    } else {
      usage();
    }
  }
  if(!path) usage();
  int width = wstr ? tcatoix(wstr) : -1;
  int64_t limsiz = lstr ? tcatoix(lstr) : -1;
  int rv = proccreate(path, width, limsiz);
  return rv;
}


/* parse arguments of inform command */
static int runinform(int argc, char **argv){
  char *path = NULL;
  int omode = 0;
  for(int i = 2; i < argc; i++){
    if(!path && argv[i][0] == '-'){
      if(!strcmp(argv[i], "-nl")){
        omode |= FDBONOLCK;
      } else if(!strcmp(argv[i], "-nb")){
        omode |= FDBOLCKNB;
      } else {
        usage();
      }
    } else if(!path){
      path = argv[i];
    } else {
      usage();
    }
  }
  if(!path) usage();
  int rv = procinform(path, omode);
  return rv;
}


/* parse arguments of put command */
static int runput(int argc, char **argv){
  char *path = NULL;
  char *key = NULL;
  char *value = NULL;
  int omode = 0;
  int dmode = 0;
  bool sx = false;
  for(int i = 2; i < argc; i++){
    if(!path && argv[i][0] == '-'){
      if(!strcmp(argv[i], "-nl")){
        omode |= FDBONOLCK;
      } else if(!strcmp(argv[i], "-nb")){
        omode |= FDBOLCKNB;
      } else if(!strcmp(argv[i], "-dk")){
        dmode = -1;
      } else if(!strcmp(argv[i], "-dc")){
        dmode = 1;
      } else if(!strcmp(argv[i], "-dai")){
        dmode = 10;
      } else if(!strcmp(argv[i], "-dad")){
        dmode = 11;
      } else if(!strcmp(argv[i], "-sx")){
        sx = true;
      } else {
        usage();
      }
    } else if(!path){
      path = argv[i];
    } else if(!key){
      key = argv[i];
    } else if(!value){
      value = argv[i];
    } else {
      usage();
    }
  }
  if(!path || !key || !value) usage();
  char *kbuf, *vbuf;
  int ksiz, vsiz;
  if(sx){
    kbuf = tchexdecode(key, &ksiz);
    vbuf = tchexdecode(value, &vsiz);
  } else {
    ksiz = strlen(key);
    kbuf = tcmemdup(key, ksiz);
    vsiz = strlen(value);
    vbuf = tcmemdup(value, vsiz);
  }
  int rv = procput(path, kbuf, ksiz, vbuf, vsiz, omode, dmode);
  tcfree(vbuf);
  tcfree(kbuf);
  return rv;
}


/* parse arguments of out command */
static int runout(int argc, char **argv){
  char *path = NULL;
  char *key = NULL;
  int omode = 0;
  bool sx = false;
  for(int i = 2; i < argc; i++){
    if(!path && argv[i][0] == '-'){
      if(!strcmp(argv[i], "-nl")){
        omode |= FDBONOLCK;
      } else if(!strcmp(argv[i], "-nb")){
        omode |= FDBOLCKNB;
      } else if(!strcmp(argv[i], "-sx")){
        sx = true;
      } else {
        usage();
      }
    } else if(!path){
      path = argv[i];
    } else if(!key){
      key = argv[i];
    } else {
      usage();
    }
  }
  if(!path || !key) usage();
  int ksiz;
  char *kbuf;
  if(sx){
    kbuf = tchexdecode(key, &ksiz);
  } else {
    ksiz = strlen(key);
    kbuf = tcmemdup(key, ksiz);
  }
  int rv = procout(path, kbuf, ksiz, omode);
  tcfree(kbuf);
  return rv;
}


/* parse arguments of get command */
static int runget(int argc, char **argv){
  char *path = NULL;
  char *key = NULL;
  int omode = 0;
  bool sx = false;
  bool px = false;
  bool pz = false;
  for(int i = 2; i < argc; i++){
    if(!path && argv[i][0] == '-'){
      if(!strcmp(argv[i], "-nl")){
        omode |= FDBONOLCK;
      } else if(!strcmp(argv[i], "-nb")){
        omode |= FDBOLCKNB;
      } else if(!strcmp(argv[i], "-sx")){
        sx = true;
      } else if(!strcmp(argv[i], "-px")){
        px = true;
      } else if(!strcmp(argv[i], "-pz")){
        pz = true;
      } else {
        usage();
      }
    } else if(!path){
      path = argv[i];
    } else if(!key){
      key = argv[i];
    } else {
      usage();
    }
  }
  if(!path || !key) usage();
  int ksiz;
  char *kbuf;
  if(sx){
    kbuf = tchexdecode(key, &ksiz);
  } else {
    ksiz = strlen(key);
    kbuf = tcmemdup(key, ksiz);
  }
  int rv = procget(path, kbuf, ksiz, omode, px, pz);
  tcfree(kbuf);
  return rv;
}


/* parse arguments of list command */
static int runlist(int argc, char **argv){
  char *path = NULL;
  int omode = 0;
  int max = -1;
  bool pv = false;
  bool px = false;
  char *rlstr = NULL;
  char *rustr = NULL;
  char *ristr = NULL;
  for(int i = 2; i < argc; i++){
    if(!path && argv[i][0] == '-'){
      if(!strcmp(argv[i], "-nl")){
        omode |= FDBONOLCK;
      } else if(!strcmp(argv[i], "-nb")){
        omode |= FDBOLCKNB;
      } else if(!strcmp(argv[i], "-m")){
        if(++i >= argc) usage();
        max = tcatoix(argv[i]);
      } else if(!strcmp(argv[i], "-pv")){
        pv = true;
      } else if(!strcmp(argv[i], "-px")){
        px = true;
      } else if(!strcmp(argv[i], "-rb")){
        if(++i >= argc) usage();
        rlstr = argv[i];
        if(++i >= argc) usage();
        rustr = argv[i];
      } else if(!strcmp(argv[i], "-ri")){
        if(++i >= argc) usage();
        ristr = argv[i];
      } else {
        usage();
      }
    } else if(!path){
      path = argv[i];
    } else {
      usage();
    }
  }
  if(!path) usage();
  int rv = proclist(path, omode, max, pv, px, rlstr, rustr, ristr);