rockbox/uisimulator/x11/io.c

/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2002 Daniel Stenberg
 *
 * All files in this archive are subject to the GNU General Public License.
 * See the file COPYING in the source tree root for full license agreement.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/vfs.h>
#include <dirent.h>

#include <fcntl.h>
#include "debug.h"

#define DIRFUNCTIONS_DEFINED /* prevent those prototypes */
#define dirent x11_dirent
#include "../../firmware/common/dir.h"
#undef dirent

#define SIMULATOR_ARCHOS_ROOT "archos"

struct mydir {
  DIR *dir;
  char *name;
};

typedef struct mydir MYDIR;

MYDIR *x11_opendir(char *name)
{
  char buffer[256]; /* sufficiently big */
  DIR *dir;

  if(name[0] == '/') {
    sprintf(buffer, "%s%s", SIMULATOR_ARCHOS_ROOT, name);    
    dir=(DIR *)opendir(buffer);
  }
  else
    dir=(DIR *)opendir(name);

  if(dir) {
    MYDIR *my = (MYDIR *)malloc(sizeof(MYDIR));
    my->dir = dir;
    my->name = (char *)strdup(name);

    return my;
  }
  /* failed open, return NULL */
  return (MYDIR *)0;
}

struct x11_dirent *x11_readdir(MYDIR *dir)
{
  char buffer[512]; /* sufficiently big */
  static struct x11_dirent secret;
  struct stat s;
  struct dirent *x11 = (readdir)(dir->dir);

  if(!x11)
    return (struct x11_dirent *)0;

  strcpy(secret.d_name, x11->d_name);

  /* build file name */
  sprintf(buffer, SIMULATOR_ARCHOS_ROOT "%s/%s",
          dir->name, x11->d_name);
  stat(buffer, &s); /* get info */

  secret.attribute = S_ISDIR(s.st_mode)?ATTR_DIRECTORY:0;
  secret.size = s.st_size;

  return &secret;
}

void x11_closedir(MYDIR *dir)
{
  free(dir->name);
  (closedir)(dir->dir);

  free(dir);
}


int x11_open(char *name, int opts)
{
  char buffer[256]; /* sufficiently big */

  if(name[0] == '/') {
    sprintf(buffer, "%s%s", SIMULATOR_ARCHOS_ROOT, name);

    debugf("We open the real file '%s'\n", buffer);
    return open(buffer, opts);
  }
  return open(name, opts);
}

int x11_creat(char *name, int mode)
{
  char buffer[256]; /* sufficiently big */

  if(name[0] == '/') {
    sprintf(buffer, "%s%s", SIMULATOR_ARCHOS_ROOT, name);

    debugf("We create the real file '%s'\n", buffer);
    return creat(buffer, mode);
  }
  return creat(name, mode);
}

int x11_remove(char *name)
{
  char buffer[256]; /* sufficiently big */

  if(name[0] == '/') {
    sprintf(buffer, "%s%s", SIMULATOR_ARCHOS_ROOT, name);

    debugf("We remove the real file '%s'\n", buffer);
    return remove(buffer);
  }
  return remove(name);
}

int x11_rename(char *oldpath, char* newpath)
{
  char buffer1[256];
  char buffer2[256];

  if(oldpath[0] == '/') {
      sprintf(buffer1, "%s%s", SIMULATOR_ARCHOS_ROOT, oldpath);
      sprintf(buffer2, "%s%s", SIMULATOR_ARCHOS_ROOT, newpath);

      debugf("We rename the real file '%s' to '%s'\n", buffer1, buffer2);
      return rename(buffer1, buffer2);
  }
  return -1;
}

void fat_size(unsigned int* size, unsigned int* free)
{
    struct statfs fs;

    if (!statfs(".", &fs)) {
        DEBUGF("statfs: bsize=%d blocks=%d free=%d\n",
               fs.f_bsize, fs.f_blocks, fs.f_bfree);
        if (size)
            *size = fs.f_blocks * (fs.f_bsize / 1024);
        if (free)
            *free = fs.f_bfree * (fs.f_bsize / 1024);
    }
    else {
        if (size)
            *size = 0;
        if (free)
            *free = 0;
    }
}