(file) Return to tvfs.c CVS log (file) (dir) Up to [RizwankCVS] / group3 / wine / dlls / cabinet / tests

Diff for /group3/wine/dlls/cabinet/tests/tvfs.c between version 1.3 and 1.9

version 1.3, 2005/02/25 06:34:24 version 1.9, 2005/02/27 10:44:25
Line 7 
Line 7 
 #include "tvfs.h" #include "tvfs.h"
 #include <string.h> #include <string.h>
  
 /* This is extremely cheezy.  Everything is preallocated per file. */  #define MAXFILES 20
   #define MAXHANDLES 20
 #define MAXFILES 10  
 #define MAXHANDLES 10  
 #define MAXFNAME 255 #define MAXFNAME 255
 #define MAXFLEN 65536  #define MAXFLEN 65536*2
   
   #include <fcntl.h>
   #include <stdlib.h>
   #include <stdio.h>
   #include <malloc.h>
   #include <stdio.h>
   #include <stdarg.h>
  
   /*
 #define TVFS_MAIN #define TVFS_MAIN
   #define TVFS_DEBUG
   */
  
 #ifdef TVFS_MAIN  #define SEEK_SET 0
 #include "cabinet_files.h"  #define SEEK_CUR 1
 #include <fcntl.h>  #define SEEK_END 2
   
   #ifndef _O_BINARY
   #define _O_BINARY 0
   #endif
   
   #ifndef STANDALONE
   #else
   static void trace(const char *s, ...)
   {
       va_list elipsis;
       va_start (elipsis, s);
       vprintf(s, elipsis);
       va_end(elipsis);
   }
 #endif #endif
  
 struct tvfs_file { struct tvfs_file {
Line 27 
Line 49 
        char buf[MAXFLEN];        char buf[MAXFLEN];
 }; };
 static struct tvfs_file *files[MAXFILES]; static struct tvfs_file *files[MAXFILES];
 int nfiles = 0;  
  
 struct tvfs_fcb { struct tvfs_fcb {
        int pos;        int pos;
        int inode;        int inode;
 }; };
 static struct tvfs_fcb *handles[MAXHANDLES]; static struct tvfs_fcb *handles[MAXHANDLES];
   
 int nhandles = 0; int nhandles = 0;
   int nfiles = 0;
  
 /* tvfs_create does NOT correspond to _creat - it is an internal function /* tvfs_create does NOT correspond to _creat - it is an internal function
 use to put a file directly into our virtual filesystem. */ use to put a file directly into our virtual filesystem. */
Line 43 
Line 66 
 { {
            int inode;            int inode;
        struct tvfs_file *f;        struct tvfs_file *f;
   
       #ifdef TVFS_DEBUG
       trace("tvfs_create called with %s, %d, %d\n", fname, buf, len);
       #endif
   
        if (nfiles >= MAXFILES)        if (nfiles >= MAXFILES)
                return -1;                return -1;
        inode = nfiles++;        inode = nfiles++;
                 /* calloc didn't work here, while malloc did */  
            f = malloc(sizeof(struct tvfs_file));            f = malloc(sizeof(struct tvfs_file));
        strcpy(f->fname, fname);        strcpy(f->fname, fname);
        f->bytes_used = len;        f->bytes_used = len;
   
        if (buf)        if (buf)
                memcpy(f->buf, buf, len);                memcpy(f->buf, buf, len);
   
        files[inode] = f;        files[inode] = f;
        return inode;        return inode;
 } }
Line 62 
Line 92 
                 /* mode and flags are not handled */                 /* mode and flags are not handled */
        int h;        int h;
        int inode;        int inode;
       struct tvfs_fcb *handler;
   
       #ifdef TVFS_DEBUG
       trace("tvfs_open called with %s, %d, %d\n", fname, flags, mode);
       #endif
   
        /* Existing file? */        /* Existing file? */
        for (inode=0; inode<nfiles; inode++) {        for (inode=0; inode<nfiles; inode++) {
                if (!files[inode])                if (!files[inode])
                        continue;                        continue;
                if (!strcmp(files[inode]->fname, fname))                if (!strcmp(files[inode]->fname, fname))
                                                 break;       }              break;
       }
   
        if (inode == nfiles) {        if (inode == nfiles) {
                /* File did not exist */                /* File did not exist */
                if ((flags & O_CREAT) == 0) {                if ((flags & O_CREAT) == 0) {
                        /* ENOENT */                        /* ENOENT */
               #ifdef TVFS_DEBUG
               trace("tvfs_open returning -1\n");
               #endif
                        return -1;                        return -1;
                }                }
   
                inode = tvfs_create(fname, 0, 0);                inode = tvfs_create(fname, 0, 0);
        }        }
            struct tvfs_fcb *handler;  
            handler = malloc(sizeof(struct tvfs_fcb));            handler = malloc(sizeof(struct tvfs_fcb));
            handler->inode = inode;            handler->inode = inode;
            handler->pos=0;            handler->pos=0;
            h = nfiles++;      h = nhandles++;
            handles[h] = handler;            handles[h] = handler;
   
       #ifdef TVFS_DEBUG
       trace("tvfs_open returning with %d\n", h);
       #endif
   
            return h;            return h;
 } }
  
Line 91 
Line 138 
        int pos = handles[h]->pos;        int pos = handles[h]->pos;
            int size = files[inode]->bytes_used;            int size = files[inode]->bytes_used;
  
        /* FIXME: handle edge cases */      #ifdef TVFS_DEBUG
       trace("tvfs_read called with %d, %d, %d\n", h, buf, len);
       #endif
   
            /* Edge Case 1 : Request beyond boundary of file */            /* Edge Case 1 : Request beyond boundary of file */
            if (pos + len > size) {            if (pos + len > size) {
                    len = size-pos;                    len = size-pos;
Line 103 
Line 153 
        return len;        return len;
 } }
  
 void tvfs_free(){  void tvfs_free()
   {
         int inode;         int inode;
       int handle;
   
       #ifdef TVFS_DEBUG
       trace("tvfs_free\n");
       #endif
   
       nfiles=0;
       nhandles=0;
   
        for (inode=0; inode<nfiles; inode++) {        for (inode=0; inode<nfiles; inode++) {
                         if (!files[inode])                         if (!files[inode])
                                 continue;                                 continue;
                         free(files[inode]);                         free(files[inode]);
                 }                 }
   
       for (handle=0; handle<nhandles; handle++) {
           if (!handles[handle])
               continue;
           free(handles[handle]);
       }
   
   }
   
   /* Compare given file with given contents, return 0 on equal, else nonzero */
   int tvfs_compare(const char *fname, const char *buf, int len)
   {
   
       int inode;
   
       #ifdef TVFS_DEBUG
       trace("tvfs_compare called with %s, %d, %d\n", fname, buf, len);
       #endif
   
       for (inode=0; inode<nfiles; inode++) {
           if (!files[inode])
               continue;
           if (!strcmp(files[inode]->fname, fname))
           break;
       }
   
       if (inode == nfiles) {
           /* File did not exist */
           #ifdef TVFS_DEBUG
           trace("tvfs_compare returning -1 (FAILURE)\n");
           #endif
           return -1;
         }         }
  
       return (memcmp(files[inode]->buf,buf,len));
       /* doesnt check for out of bound */
   }
   
   long tvfs_lseek(int h, long whence, int whither )
   {
   
       int inode = handles[h]->inode;
       int size = files[inode]->bytes_used;
       #ifdef TVFS_DEBUG
       trace("tvfs_lseek called with %d, %d, %d\n", h, whither, whence);
       #endif
   
   /*  if (whence > size)
       whence = size;*/
   /*  Legit lseek does NOT do boundry checking */
   
       switch(whither) {
       case SEEK_SET: {
       handles[h]->pos = whence;
       break;
       }
       case SEEK_CUR: {
       handles[h]->pos += whence;
       break;
       }
       case SEEK_END: {
       handles[h]->pos = size+whence;
       break;
       }
       case 5: {
       handles[h]->pos = size+whence;
       break;
       }
       case 44: {
       handles[h]->pos = size+whence;
       break;
       }
       default:
       {
       trace("lseek was called with an invalid whither %d\n",whither);
       return -1;
       }
       }
       return handles[h]->pos;
     }
   
   int tvfs_close(int h){
       int inode = handles[h]->inode;
       #ifdef TVFS_DEBUG
       trace("tvfs_close called with %d\n", h);
       #endif
       if (!files[inode]){
       return -1;
       }
       free(handles[h]);
       /* Currently does NOT enabled open to reuse this handle */
       return 0;
    }
   
   unsigned int tvfs_write(int h, void *buf, unsigned int len)
   {
   
       int inode = handles[h]->inode;
       int pos = handles[h]->pos;
       #ifdef TVFS_DEBUG
       trace("tvfs_write called with %d, %d, %d\n", h, buf, len);
       #endif
       memcpy(files[inode]->buf+pos, buf, len);
       files[inode]->bytes_used += len;
       handles[h]->pos += len;
   
       return len;
       /* return -1 to simulate diskfull or some other error */
   }
   
   
  
  
  
 #ifdef TVFS_MAIN #ifdef TVFS_MAIN
   
 const static char name_test_txt[] = "test.txt"; const static char name_test_txt[] = "test.txt";
 const static char file_test_txt[] = "This is a test. Don't Panic!"; const static char file_test_txt[] = "This is a test. Don't Panic!";
   const static int size_test_txt = sizeof(file_test_txt);
  
 main(){ main(){
         int result;         int result;
Line 131 
Line 302 
         filebuf = malloc(MAXFLEN);         filebuf = malloc(MAXFLEN);
  
         printf("Testing TVFS implementation, creating %s\n",name_test_txt);         printf("Testing TVFS implementation, creating %s\n",name_test_txt);
         result = tvfs_create( dummy_filename, file_test_txt, sizeof(file_test_txt));      result = tvfs_create( dummy_filename, file_test_txt, size_test_txt);
         result = tvfs_create( name_test_txt, file_test_txt,sizeof(file_test_txt));      result = tvfs_create( name_test_txt, file_test_txt,size_test_txt);
         printf("Created virtual file with inode %d\n",result);         printf("Created virtual file with inode %d\n",result);
  
         /* This test failes because strcmp returns 0 incorrectly! */  
         printf("Attempting to open non-existant file\n");         printf("Attempting to open non-existant file\n");
         result = tvfs_open(bad_filename, _O_BINARY, 0 );         result = tvfs_open(bad_filename, _O_BINARY, 0 );
         printf("Result code %d\n",result);         printf("Result code %d\n",result);
Line 150 
Line 320 
         printf("Testing reading from file %s\n",name_test_txt);         printf("Testing reading from file %s\n",name_test_txt);
         result = tvfs_read(active_handler, filebuf, 9);         result = tvfs_read(active_handler, filebuf, 9);
         printf("Read _%s_\n", filebuf);         printf("Read _%s_\n", filebuf);
         if ( strcmp(filebuf,"This is a")) {      if ( strcmp(filebuf,"This is a"))
                 printf("File read check failed!\n");                 printf("File read check failed!\n");
         }  
  
         printf("Testing sequential reading from file %s\n",name_test_txt);         printf("Testing sequential reading from file %s\n",name_test_txt);
         result = tvfs_read(active_handler, filebuf, 12);         result = tvfs_read(active_handler, filebuf, 12);
         printf("Read _%s_\n", filebuf);         printf("Read _%s_\n", filebuf);
         if ( strcmp(filebuf," test. Don't")) {      if ( strcmp(filebuf," test. Don't"))
                 printf("File read check failed!\n");                 printf("File read check failed!\n");
         }  
  
         printf("Testing edge reading from file %s\n",name_test_txt);         printf("Testing edge reading from file %s\n",name_test_txt);
         result = tvfs_read(active_handler, filebuf, 20);      result = tvfs_read(active_handler, filebuf, 42);
         printf("Read %d bytes - _%s_\n", result, filebuf);         printf("Read %d bytes - _%s_\n", result, filebuf);
         if ( result != 8 ) {      if ( result != 8 )
                 printf("File read check failed!\n");                 printf("File read check failed!\n");
         }  
   
  
       printf("Testing direct file compare and lseek of %s\n", name_test_txt);
       printf("Seeking to 0 (not needed) - ");
       tvfs_lseek( active_handler, SEEK_SET, 0);
       printf("Comparing file\n");
       result = tvfs_compare( name_test_txt , file_test_txt, size_test_txt);
       if (result)
       printf ("File compare failed!\n");
  
  
       printf("Closing %s\n",name_test_txt);
       tvfs_close(active_handler);
       if (result)
       printf ("File close failed!\n");
  
         tvfs_free();         tvfs_free();
         free(filebuf);         free(filebuf);

Legend:
Removed from v.1.3  
changed lines
  Added in v.1.9
Rizwan Kassim
 Powered by
ViewCVS 0.9.2