gimp/app/base/base.c

191 lines
4.6 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#include <glib-object.h>
#ifdef G_OS_WIN32
#include <process.h> /* for _getpid() */
#include <io.h> /* for _unlink() */
#endif
#include "base-types.h"
#include "config/gimpbaseconfig.h"
#include "config/gimpconfig-path.h"
#include "paint-funcs/paint-funcs.h"
#include "composite/gimp-composite.h"
#include "base.h"
#include "temp-buf.h"
#include "tile-cache.h"
#include "tile-swap.h"
GimpBaseConfig *base_config = NULL;
static void base_toast_old_temp_files (GimpBaseConfig *config);
static void base_tile_cache_size_notify (GObject *config,
GParamSpec *param_spec,
gpointer data);
/* public functions */
gboolean
base_init (GimpBaseConfig *config,
gboolean use_cpu_accel)
{
gchar *swapfile;
gchar *swapdir;
gchar *path;
gboolean swap_is_ok;
g_return_val_if_fail (GIMP_IS_BASE_CONFIG (config), FALSE);
g_return_val_if_fail (base_config == NULL, FALSE);
base_config = g_object_ref (config);
tile_cache_init (config->tile_cache_size);
g_signal_connect (config, "notify::tile-cache-size",
G_CALLBACK (base_tile_cache_size_notify),
NULL);
base_toast_old_temp_files (config);
/* Add the swap file */
if (! config->swap_path)
g_object_set (config, "swap_path", "${gimp_dir}", NULL);
swapdir = gimp_config_path_expand (config->swap_path, TRUE, NULL);
swapfile = g_strdup_printf ("gimpswap.%lu", (unsigned long) getpid ());
path = g_build_filename (swapdir, swapfile, NULL);
g_free (swapfile);
g_free (swapdir);
tile_swap_add (path, NULL, NULL);
g_free (path);
swap_is_ok = tile_swap_test ();
gimp_composite_init (use_cpu_accel);
paint_funcs_setup ();
return swap_is_ok;
}
void
base_exit (void)
{
g_return_if_fail (base_config != NULL);
swapping_free ();
paint_funcs_free ();
tile_swap_exit ();
tile_cache_exit ();
g_signal_handlers_disconnect_by_func (base_config,
base_tile_cache_size_notify,
NULL);
g_object_unref (base_config);
base_config = NULL;
}
/* private functions */
static void
base_toast_old_temp_files (GimpBaseConfig *config)
{
GDir *dir = NULL;
gchar *dirname;
const char *entry;
if (!config->swap_path)
return;
dirname = gimp_config_path_expand (config->swap_path, TRUE, NULL);
if (!dirname)
return;
dir = g_dir_open (dirname, 0, NULL);
if (!dir)
{
g_free (dirname);
return;
}
while ((entry = g_dir_read_name (dir)) != NULL)
if (! strncmp (entry, "gimpswap.", 9))
{
/* don't try to kill swap files of running processes
* yes, I know they might not all be gimp processes, and when you
* unlink, it's refcounted, but lets not confuse the user by
* "where did my disk space go?" cause the filename is gone
* if the kill succeeds, and there running process isn't gimp
* we'll probably get it the next time around
*/
gint pid = atoi (entry + 9);
/* On Windows, you can't remove open files anyhow,
* so no harm trying.
*/
#ifndef G_OS_WIN32
if (kill (pid, 0))
#endif
{
gchar *filename;
filename = g_build_filename (dirname, entry, NULL);
unlink (filename);
g_free (filename);
}
}
g_dir_close (dir);
g_free (dirname);
}
static void
base_tile_cache_size_notify (GObject *config,
GParamSpec *param_spec,
gpointer data)
{
tile_cache_set_size (GIMP_BASE_CONFIG (config)->tile_cache_size);
}