qdbmtest.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

/*************************************************************************************************
 * Writing test of Quick Database Manager
 *************************************************************************************************/


#include <depot.h>
#include <cabin.h>
#include <villa.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#undef TRUE
#define TRUE           1                 /* boolean true */
#undef FALSE
#define FALSE          0                 /* boolean false */

#define RECBUFSIZ      32                /* buffer for records */


/* global variables */
const char *progname;                    /* program name */
int showprgr;                            /* whether to show progression */


/* function prototypes */
int main(int argc, char **argv);
void usage(void);
int runwrite(int argc, char **argv);
int runread(int argc, char **argv);
int runbtwrite(int argc, char **argv);
int runbtread(int argc, char **argv);
int myrand(void);
int dowrite(char *name, int rnum);
int doread(char *name, int rnum);
int dobtwrite(char *name, int rnum, int rnd);
int dobtread(char *name, int rnum, int rnd);


/* main routine */
int main(int argc, char **argv){
  int rv;
  progname = argv[0];
  showprgr = TRUE;
  if(getenv("HIDEPRGR")) showprgr = FALSE;
  srand48(1978);
  if(argc < 2) usage();
  rv = 0;
  if(!strcmp(argv[1], "write")){
    rv = runwrite(argc, argv);
  } else if(!strcmp(argv[1], "read")){
    rv = runread(argc, argv);
  } else if(!strcmp(argv[1], "btwrite")){
    rv = runbtwrite(argc, argv);
  } else if(!strcmp(argv[1], "btread")){
    rv = runbtread(argc, argv);
  } else {
    usage();
  }
  return rv;
}


/* print the usage and exit */
void usage(void){
  fprintf(stderr, "%s: test cases for Quick Database Manager\n", progname);
  fprintf(stderr, "\n");
  fprintf(stderr, "usage:\n");
  fprintf(stderr, "  %s write name rnum\n", progname);
  fprintf(stderr, "  %s read name rnum\n", progname);
  fprintf(stderr, "  %s btwrite [-rnd] name rnum\n", progname);
  fprintf(stderr, "  %s btread [-rnd] name rnum\n", progname);
  fprintf(stderr, "\n");
  exit(1);
}


/* parse arguments of write command */
int runwrite(int argc, char **argv){
  char *name, *rstr;
  int i, rnum, rv;
  name = NULL;
  rstr = NULL;
  rnum = 0;
  for(i = 2; i < argc; i++){
    if(!name && argv[i][0] == '-'){
      usage();
    } else if(!name){
      name = argv[i];
    } else if(!rstr){
      rstr = argv[i];
    } else {
      usage();
    }
  }
  if(!name || !rstr) usage();
  rnum = atoi(rstr);
  if(rnum < 1) usage();
  rv = dowrite(name, rnum);
  return rv;
}


/* parse arguments of read command */
int runread(int argc, char **argv){
  char *name, *rstr;
  int i, rnum, rv;
  name = NULL;
  rstr = NULL;
  rnum = 0;
  for(i = 2; i < argc; i++){
    if(!name && argv[i][0] == '-'){
      usage();
    } else if(!name){
      name = argv[i];
    } else if(!rstr){
      rstr = argv[i];
    } else {
      usage();
    }
  }
  if(!name || !rstr) usage();
  rnum = atoi(rstr);
  if(rnum < 1) usage();
  rv = doread(name, rnum);
  return rv;
}


/* parse arguments of btwrite command */
int runbtwrite(int argc, char **argv){
  char *name, *rstr;
  int i, rnum, rnd, rv;
  name = NULL;
  rstr = NULL;
  rnum = 0;
  rnd = FALSE;
  for(i = 2; i < argc; i++){
    if(!name && argv[i][0] == '-'){
      if(!name && !strcmp(argv[i], "-rnd")){
        rnd = TRUE;
      } else {
        usage();
      }
    } else if(!name){
      name = argv[i];
    } else if(!rstr){
      rstr = argv[i];
    } else {
      usage();
    }
  }
  if(!name || !rstr) usage();
  rnum = atoi(rstr);
  if(rnum < 1) usage();
  rv = dobtwrite(name, rnum, rnd);
  return rv;
}


/* parse arguments of btread command */
int runbtread(int argc, char **argv){
  char *name, *rstr;
  int i, rnum, rnd, rv;
  name = NULL;
  rstr = NULL;
  rnum = 0;
  rnd = FALSE;
  for(i = 2; i < argc; i++){
    if(!name && argv[i][0] == '-'){
      if(!name && !strcmp(argv[i], "-rnd")){
        rnd = TRUE;
      } else {
        usage();
      }
    } else if(!name){
      name = argv[i];
    } else if(!rstr){
      rstr = argv[i];
    } else {
      usage();
    }
  }
  if(!name || !rstr) usage();
  rnum = atoi(rstr);
  if(rnum < 1) usage();
  rv = dobtread(name, rnum, rnd);
  return rv;
}


/* pseudo random number generator */
int myrand(void){
  static int cnt = 0;
  return (lrand48() + cnt++) & 0x7FFFFFFF;
}


/* perform write command */
int dowrite(char *name, int rnum){
  DEPOT *depot;
  int i, err, len;
  char buf[RECBUFSIZ];
  if(showprgr) printf("<Writing Test of Hash>\n  name=%s  rnum=%d\n\n", name, rnum);
  /* open a database */
  if(!(depot = dpopen(name, DP_OWRITER | DP_OCREAT | DP_OTRUNC, rnum * 3))){
    fprintf(stderr, "dpopen failed\n");
    return 1;
  }
  err = FALSE;
  /* loop for each record */
  for(i = 1; i <= rnum; i++){
    /* store a record */
    len = sprintf(buf, "%08d", i);
    if(!dpput(depot, buf, len, buf, len, DP_DOVER)){
      fprintf(stderr, "dpput failed\n");
      err = TRUE;
      break;
    }
    /* print progression */
    if(showprgr && rnum > 250 && i % (rnum / 250) == 0){
      putchar('.');
      fflush(stdout);
      if(i == rnum || i % (rnum / 10) == 0){
        printf(" (%08d)\n", i);
        fflush(stdout);
      }
    }
  }
  /* close the database */
  if(!dpclose(depot)){
    fprintf(stderr, "dpclose failed\n");
    return 1;
  }
  if(showprgr && !err) printf("ok\n\n");
  return err ? 1 : 0;
}


/* perform read command */
int doread(char *name, int rnum){
  DEPOT *depot;
  int i, err, len;
  char buf[RECBUFSIZ], vbuf[RECBUFSIZ];
  if(showprgr) printf("<Reading Test of Hash>\n  name=%s  rnum=%d\n\n", name, rnum);
  /* open a database */
  if(!(depot = dpopen(name, DP_OREADER, -1))){
    fprintf(stderr, "dpopen failed\n");
    return 1;
  }
  err = FALSE;
  /* loop for each record */
  for(i = 1; i <= rnum; i++){
    /* store a record */
    len = sprintf(buf, "%08d", i);
    if(dpgetwb(depot, buf, len, 0, RECBUFSIZ, vbuf) == -1){
      fprintf(stderr, "dpget failed\n");
      err = TRUE;
      break;
    }
    /* print progression */
    if(showprgr && rnum > 250 && i % (rnum / 250) == 0){
      putchar('.');
      fflush(stdout);
      if(i == rnum || i % (rnum / 10) == 0){
        printf(" (%08d)\n", i);
        fflush(stdout);
      }
    }
  }
  /* close the database */
  if(!dpclose(depot)){
    fprintf(stderr, "dpclose failed\n");
    return 1;
  }
  if(showprgr && !err) printf("ok\n\n");
  return err ? 1 : 0;
}


/* perform btwrite command */
int dobtwrite(char *name, int rnum, int rnd){
  VILLA *villa;
  int i, err, len;
  char buf[RECBUFSIZ];
  if(showprgr) printf("<Writing Test of B+ Tree>\n  name=%s  rnum=%d\n\n", name, rnum);
  /* open a database */
  if(!(villa = vlopen(name, VL_OWRITER | VL_OCREAT | VL_OTRUNC, VL_CMPLEX))){
    fprintf(stderr, "vlopen failed\n");
    return 1;
  }
  if(rnd){
    vlsettuning(villa, 77, 256, rnum / 77, -1);
  } else {
    vlsettuning(villa, 101, 256, 16, 16);
  }
  err = FALSE;
  /* loop for each record */
  for(i = 1; i <= rnum; i++){
    /* store a record */
    len = sprintf(buf, "%08d", rnd ? myrand() % rnum + 1 : i);
    if(!vlput(villa, buf, len, buf, len, VL_DOVER)){
      fprintf(stderr, "vlput failed\n");
      err = TRUE;
      break;
    }
    /* print progression */
    if(showprgr && rnum > 250 && i % (rnum / 250) == 0){
      putchar('.');
      fflush(stdout);
      if(i == rnum || i % (rnum / 10) == 0){
        printf(" (%08d)\n", i);
        fflush(stdout);
      }
    }
  }
  /* close the database */
  if(!vlclose(villa)){
    fprintf(stderr, "vlclose failed\n");
    return 1;
  }
  if(showprgr && !err) printf("ok\n\n");
  return err ? 1 : 0;
}


/* perform btread command */
int dobtread(char *name, int rnum, int rnd){
  VILLA *villa;
  int i, err, len;
  const char *val;
  char buf[RECBUFSIZ];
  if(showprgr) printf("<Reading Test of B+ Tree>\n  name=%s  rnum=%d\n\n", name, rnum);
  /* open a database */
  if(!(villa = vlopen(name, VL_OREADER, VL_CMPLEX))){
    fprintf(stderr, "vlopen failed\n");
    return 1;
  }
  if(rnd){
    vlsettuning(villa, 37, 200, rnum / 45, 512);
  } else {
    vlsettuning(villa, 101, 256, 16, 16);
  }
  err = FALSE;
  /* loop for each record */
  for(i = 1; i <= rnum; i++){
    /* store a record */
    len = sprintf(buf, "%08d", rnd ? myrand() % rnum + 1 : i);
    if(!(val = vlgetcache(villa, buf, len, NULL))){
      fprintf(stderr, "vlget failed\n");
      err = TRUE;
      break;
    }
    /* print progression */
    if(showprgr && rnum > 250 && i % (rnum / 250) == 0){
      putchar('.');
      fflush(stdout);
      if(i == rnum || i % (rnum / 10) == 0){
        printf(" (%08d)\n", i);
        fflush(stdout);
      }
    }
  }
  /* close the database */
  if(!vlclose(villa)){
    fprintf(stderr, "vlclose failed\n");
    return 1;
  }
  if(showprgr && !err) printf("ok\n\n");
  return err ? 1 : 0;
}



/* END OF FILE */