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/* --------------------------------------------------------------------------*/
/* */
/* object for getting file type (dir, link, exe, etc) using a filename */
/* Written by Hans-Christoph Steiner <hans@eds.org> */
/* */
/* Copyright (c) 2006 Hans-Christoph Steiner */
/* */
/* 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 3 */
/* of the License, or (at your option) any later version. */
/* */
/* See file LICENSE for further information on licensing terms. */
/* */
/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* */
/* --------------------------------------------------------------------------*/
#include <m_pd.h>
#ifdef _WIN32
#define _WIN32_WINNT 0x0400
#include <windows.h>
#include <stdio.h>
#else
#include <stdlib.h>
#endif
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
static char *version = "$Revision: 1.5 $";
#define DEBUG(x)
//#define DEBUG(x) x
/*------------------------------------------------------------------------------
* CLASS DEF
*/
static t_class *stat_class;
#ifdef _WIN32
typedef struct _stat_win {
#else
typedef struct _stat {
#endif /* _WIN32 */
t_object x_obj;
t_symbol *x_filename;
/* output */
t_atom *output; // holder for a list of atoms to be outputted
t_int output_count; // number of atoms in in x->output
t_outlet *x_data_outlet;
t_outlet *x_status_outlet;
} t_stat;
/*------------------------------------------------------------------------------
* SUPPORT FUNCTIONS
*/
/* add one new atom to the list to be outputted */
static void add_atom_to_output(t_stat *x, t_atom *new_atom)
{
t_atom *new_atom_list;
new_atom_list = (t_atom *)getbytes((x->output_count + 1) * sizeof(t_atom));
memcpy(new_atom_list, x->output, x->output_count * sizeof(t_atom));
freebytes(x->output, x->output_count * sizeof(t_atom));
x->output = new_atom_list;
memcpy(x->output + x->output_count, new_atom, sizeof(t_atom));
++(x->output_count);
}
/*
static void add_symbol_to_output(t_stat *x, t_symbol *s)
{
t_atom *temp_atom = getbytes(sizeof(t_atom));
SETSYMBOL(temp_atom, s);
add_atom_to_output(x,temp_atom);
freebytes(temp_atom,sizeof(t_atom));
}
*/
static void add_float_to_output(t_stat *x, t_float f)
{
t_atom *temp_atom = getbytes(sizeof(t_atom));
SETFLOAT(temp_atom, f);
add_atom_to_output(x,temp_atom);
freebytes(temp_atom,sizeof(t_atom));
}
static void reset_output(t_stat *x)
{
if(x->output)
{
freebytes(x->output, x->output_count * sizeof(t_atom));
x->output = NULL;
x->output_count = 0;
}
}
/*------------------------------------------------------------------------------
* IMPLEMENTATION
*/
static void stat_output_error(t_stat *x)
{
DEBUG(post("stat_output_error"););
t_atom output_atoms[2];
switch(errno)
{
case EACCES:
pd_error(x, "[stat]: access denied: %s", x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("access_denied"));
break;
case EIO:
pd_error(x, "[stat]: An error occurred while reading %s",
x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("io_error"));
break;
#ifndef _WIN32
case ELOOP:
pd_error(x, "[stat]: A loop exists in symbolic links in %s",
x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("symlink_loop"));
break;
#endif
case ENAMETOOLONG:
pd_error(x, "[stat]: The filename %s is too long",
x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("name_too_long"));
break;
case ENOENT:
pd_error(x, "[stat]: %s does not exist", x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("does_not_exist"));
break;
case ENOTDIR:
pd_error(x, "[stat]: A component of %s is not a existing folder",
x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("not_folder"));
break;
#ifndef _WIN32
case EOVERFLOW:
pd_error(x, "[stat]: %s caused overflow in stat struct",
x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("internal_overflow"));
break;
#endif
case EFAULT:
pd_error(x, "[stat]: fault in stat struct (%s)", x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("internal_fault"));
break;
case EINVAL:
pd_error(x, "[stat]: invalid argument to stat() (%s)",
x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("invalid"));
break;
default:
pd_error(x, "[stat]: unknown error %d: %s", errno, x->x_filename->s_name);
SETSYMBOL(output_atoms, gensym("unknown"));
}
SETSYMBOL(output_atoms + 1, x->x_filename);
outlet_anything(x->x_status_outlet, gensym("error"), 2, output_atoms);
}
static void stat_output(t_stat* x)
{
DEBUG(post("stat_output"););
#ifdef _WIN32
struct _stat stat_buffer;
#else
struct stat stat_buffer;
#endif
int result;
#ifdef _WIN32
result = _stat(x->x_filename->s_name, &stat_buffer);
#else
result = stat(x->x_filename->s_name, &stat_buffer);
#endif /* _WIN32 */
if(result != 0)
{
stat_output_error(x);
}
else
{
reset_output(x);
add_float_to_output(x, (t_float) stat_buffer.st_mode);
add_float_to_output(x, (t_float) stat_buffer.st_nlink);
add_float_to_output(x, (t_float) stat_buffer.st_uid);
add_float_to_output(x, (t_float) stat_buffer.st_gid);
add_float_to_output(x, (t_float) stat_buffer.st_rdev);
add_float_to_output(x, (t_float) stat_buffer.st_size);
#ifdef _WIN32
add_float_to_output(x, (t_float) 0);
add_float_to_output(x, (t_float) 0);
#else
add_float_to_output(x, (t_float) stat_buffer.st_blocks);
add_float_to_output(x, (t_float) stat_buffer.st_blksize);
#endif
/* 86400 seconds == 24 hours == 1 day */
#if defined(_POSIX_C_SOURCE) || defined(_WIN32)
add_float_to_output(x, (t_float) (stat_buffer.st_atime / 86400));
add_float_to_output(x, (t_float) (stat_buffer.st_atime % 86400));
add_float_to_output(x, (t_float) (stat_buffer.st_mtime / 86400));
add_float_to_output(x, (t_float) (stat_buffer.st_mtime % 86400));
add_float_to_output(x, (t_float) (stat_buffer.st_ctime / 86400));
add_float_to_output(x, (t_float) (stat_buffer.st_ctime % 86400));
#else
add_float_to_output(x,
(t_float) (stat_buffer.st_atimespec.tv_sec / 86400));
add_float_to_output(x,
(t_float) (stat_buffer.st_atimespec.tv_sec % 86400));
add_float_to_output(x,
(t_float) (stat_buffer.st_mtimespec.tv_sec / 86400));
add_float_to_output(x,
(t_float) (stat_buffer.st_mtimespec.tv_sec % 86400));
add_float_to_output(x,
(t_float) (stat_buffer.st_ctimespec.tv_sec / 86400));
add_float_to_output(x,
(t_float) (stat_buffer.st_ctimespec.tv_sec % 86400));
#endif /* _POSIX_C_SOURCE */
outlet_anything(x->x_data_outlet,x->x_filename,
x->output_count,x->output);
}
}
static void stat_set(t_stat* x, t_symbol *s)
{
DEBUG(post("stat_set"););
#ifdef _WIN32
char string_buffer[MAX_PATH];
ExpandEnvironmentStrings(s->s_name, string_buffer, MAX_PATH);
x->x_filename = gensym(string_buffer);
#else
x->x_filename = s;
#endif
}
static void stat_symbol(t_stat *x, t_symbol *s)
{
stat_set(x,s);
stat_output(x);
}
static void *stat_new(t_symbol *s)
{
DEBUG(post("stat_new"););
t_stat *x = (t_stat *)pd_new(stat_class);
symbolinlet_new(&x->x_obj, &x->x_filename);
x->x_data_outlet = outlet_new(&x->x_obj, 0);
x->x_status_outlet = outlet_new(&x->x_obj, 0);
/* set to the value from the object argument, if that exists */
if (s != &s_)
{
x->x_filename = s;
}
else
{
x->x_filename = canvas_getcurrentdir();
post("setting pattern to default: %s",x->x_filename->s_name);
}
return (x);
}
void stat_setup(void)
{
DEBUG(post("stat_setup"););
stat_class = class_new(gensym("stat"),
(t_newmethod)stat_new,
0,
sizeof(t_stat),
0,
A_DEFSYM,
0);
/* add inlet datatype methods */
class_addbang(stat_class,(t_method) stat_output);
class_addsymbol(stat_class,(t_method) stat_symbol);
/* add inlet message methods */
class_addmethod(stat_class,(t_method) stat_set,gensym("set"),
A_DEFSYM, 0);
logpost(NULL, 4, "[stat] %s",version);
logpost(NULL, 4, "\twritten by Hans-Christoph Steiner <hans@eds.org>");
logpost(NULL, 4, "\tcompiled on "__DATE__" at "__TIME__ " ");
}
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