Commit ff7b741a authored by Christian Hergert's avatar Christian Hergert
Browse files

seq: add document sequence to track unsaved file number

parent 92069db2
/* gb-doc-seq.c
*
* Copyright (C) 2014 Christian Hergert <christian@hergert.me>
*
* 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "gb-doc-seq.h"
static GHashTable *seq;
guint
gb_doc_seq_acquire (void)
{
guint seq_id;
if (!seq)
seq = g_hash_table_new (g_direct_hash, g_direct_equal);
for (seq_id = 1; seq_id < G_MAXUINT; seq_id++)
{
gpointer key;
key = GINT_TO_POINTER (seq_id);
if (!g_hash_table_lookup (seq, key))
{
g_hash_table_insert (seq, key, GINT_TO_POINTER (TRUE));
return seq_id;
}
}
return 0;
}
void
gb_doc_seq_release (guint seq_id)
{
g_hash_table_remove (seq, GINT_TO_POINTER (seq_id));
}
/* gb-doc-seq.h
*
* Copyright (C) 2014 Christian Hergert <christian@hergert.me>
*
* 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.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef GB_DOC_SEQ_H
#define GB_DOC_SEQ_H
#include <glib.h>
G_BEGIN_DECLS
guint gb_doc_seq_acquire (void);
void gb_doc_seq_release (guint seq_id);
G_END_DECLS
#endif /* GB_DOC_SEQ_H */
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