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child.c

/* 
   dbench version 3

   Copyright (C) Andrew Tridgell 1999-2004
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program 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 General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

/* This file links against either fileio.c to do operations against a
   local filesystem (making dbench), or sockio.c to issue SMB-like
   command packets over a socket (making tbench).

   So, the pattern of operations and the control structure is the same
   for both benchmarks, but the operations performed are different.
*/

#include "dbench.h"

#define ival(s) strtol(s, NULL, 0)


/* run a test that simulates an approximate netbench client load */
void child_run(struct child_struct *child, const char *loadfile)
{
      int i;
      char line[1024];
      char *cname;
      char params[20][100];
      char *p;
      const char *status;
      char *fname = NULL;
      char *fname2 = NULL;
      FILE *f = fopen(loadfile, "r");
      pid_t parent = getppid();

      child->line = 0;

      asprintf(&cname,"client%d", child->id);

again:
      while (fgets(line, sizeof(line)-1, f)) {
            if (child->done || kill(parent, 0) == -1) {
                  goto done;
            }

            child->line++;

            line[strlen(line)-1] = 0;

            all_string_sub(line,"client1", cname);
            all_string_sub(line,"\\", "/");
            all_string_sub(line," /", " ");
            
            p = line;
            for (i=0; 
                 i<19 && next_token(&p, params[i], " ");
                 i++) ;

            params[i][0] = 0;

            if (i < 2 || params[0][0] == '#') continue;

            if (!strncmp(params[0],"SMB", 3)) {
                  printf("ERROR: You are using a dbench 1 load file\n");
                  exit(1);
            }

            if (strncmp(params[i-1], "NT_STATUS_", 10) != 0) {
                  printf("Badly formed status at line %d\n", child->line);
                  continue;
            }

            if (fname) {
                  free(fname);
                  fname = NULL;
            }
            if (fname2) {
                  free(fname2);
                  fname2 = NULL;
            }

            if (i>1 && params[1][0] == '/') {
                  asprintf(&fname, "%s%s", child->directory, params[1]);
            }
            if (i>2 && params[2][0] == '/') {
                  asprintf(&fname2, "%s%s", child->directory, params[2]);
            }

            status = params[i-1];

            if (!strcmp(params[0],"NTCreateX")) {
                  nb_createx(child, fname, ival(params[2]), ival(params[3]), 
                           ival(params[4]), status);
            } else if (!strcmp(params[0],"Close")) {
                  nb_close(child, ival(params[1]), status);
            } else if (!strcmp(params[0],"Rename")) {
                  nb_rename(child, fname, fname2, status);
            } else if (!strcmp(params[0],"Unlink")) {
                  nb_unlink(child, fname, ival(params[2]), status);
            } else if (!strcmp(params[0],"Deltree")) {
                  nb_deltree(child, fname);
            } else if (!strcmp(params[0],"Rmdir")) {
                  nb_rmdir(child, fname, status);
            } else if (!strcmp(params[0],"Mkdir")) {
                  nb_mkdir(child, fname, status);
            } else if (!strcmp(params[0],"QUERY_PATH_INFORMATION")) {
                  nb_qpathinfo(child, fname, ival(params[2]), status);
            } else if (!strcmp(params[0],"QUERY_FILE_INFORMATION")) {
                  nb_qfileinfo(child, ival(params[1]), ival(params[2]), status);
            } else if (!strcmp(params[0],"QUERY_FS_INFORMATION")) {
                  nb_qfsinfo(child, ival(params[1]), status);
            } else if (!strcmp(params[0],"SET_FILE_INFORMATION")) {
                  nb_sfileinfo(child, ival(params[1]), ival(params[2]), status);
            } else if (!strcmp(params[0],"FIND_FIRST")) {
                  nb_findfirst(child, fname, ival(params[2]), 
                             ival(params[3]), ival(params[4]), status);
            } else if (!strcmp(params[0],"WriteX")) {
                  nb_writex(child, ival(params[1]), 
                          ival(params[2]), ival(params[3]), ival(params[4]),
                          status);
            } else if (!strcmp(params[0],"LockX")) {
                  nb_lockx(child, ival(params[1]), 
                         ival(params[2]), ival(params[3]), status);
            } else if (!strcmp(params[0],"UnlockX")) {
                  nb_unlockx(child, ival(params[1]), 
                         ival(params[2]), ival(params[3]), status);
            } else if (!strcmp(params[0],"ReadX")) {
                  nb_readx(child, ival(params[1]), 
                         ival(params[2]), ival(params[3]), ival(params[4]),
                         status);
            } else if (!strcmp(params[0],"Flush")) {
                  nb_flush(child, ival(params[1]), status);
            } else if (!strcmp(params[0],"Sleep")) {
                  nb_sleep(child, ival(params[1]), status);
            } else {
                  printf("[%d] Unknown operation %s\n", child->line, params[0]);
            }
      }

      rewind(f);
      goto again;

done:
      child->cleanup = 1;
      fclose(f);
      nb_cleanup(child);
}

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