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/*
* Copyright (c) 2018 Balabit
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation, 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*
*/
#include "file-list.h"
#include "compat/glib.h"
struct _PendingFileList
{
GHashTable *index_storage;
GQueue *priority_queue;
};
PendingFileList *pending_file_list_new(void)
{
PendingFileList *self = g_new(PendingFileList, 1);
self->index_storage = g_hash_table_new(g_str_hash, g_str_equal);
self->priority_queue = g_queue_new();
return self;
}
void pending_file_list_free(PendingFileList *self)
{
g_hash_table_unref(self->index_storage);
g_queue_free_full(self->priority_queue, g_free);
g_free(self);
}
void pending_file_list_add(PendingFileList *self, const gchar *value)
{
GList *element = g_hash_table_lookup(self->index_storage, value);
if (!element)
{
gchar *new_value = g_strdup(value);
g_queue_push_tail(self->priority_queue, new_value);
g_hash_table_insert(self->index_storage, new_value, self->priority_queue->tail);
}
}
gchar *pending_file_list_pop(PendingFileList *self)
{
GList *it = pending_file_list_begin(self);
if (it == pending_file_list_end(self))
return NULL;
gchar *data = it->data;
pending_file_list_steal(self, it);
g_list_free_1(it);
return data;
}
gboolean pending_file_list_remove(PendingFileList *self, const gchar *value)
{
gboolean is_deleted = FALSE;
GList *element = g_hash_table_lookup(self->index_storage, value);
if (element)
{
g_hash_table_steal(self->index_storage, element->data);
g_free(element->data);
g_queue_delete_link(self->priority_queue, element);
is_deleted = TRUE;
}
return is_deleted;
}
void pending_file_list_steal(PendingFileList *self, GList *entry)
{
if (!entry) return;
GList *element = g_hash_table_lookup(self->index_storage, entry->data);
g_assert(element);
g_hash_table_steal(self->index_storage, element->data);
g_queue_unlink(self->priority_queue, entry);
}
GList *pending_file_list_begin(PendingFileList *self)
{
return self->priority_queue->head;
}
GList *pending_file_list_end(PendingFileList *self)
{
return NULL;
}
GList *pending_file_list_next(GList *it)
{
return it->next;
}
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