5 * Duncan Mak (duncan@novell.com)
6 * Gonzalo Paniagua Javier (gonzalo@novell.com)
8 * Permission is hereby granted, free of charge, to any person obtaining
9 * a copy of this software and associated documentation files (the
10 * "Software"), to deal in the Software without restriction, including
11 * without limitation the rights to use, copy, modify, merge, publish,
12 * distribute, sublicense, and/or sell copies of the Software, and to
13 * permit persons to whom the Software is furnished to do so, subject to
14 * the following conditions:
16 * The above copyright notice and this permission notice shall be
17 * included in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * Copyright (c) 2006-2009 Novell, Inc.
35 g_queue_pop_head (GQueue
*queue
)
40 if (!queue
|| queue
->length
== 0)
43 result
= queue
->head
->data
;
44 old_head
= queue
->head
;
45 queue
->head
= old_head
->next
;
46 g_list_free_1 (old_head
);
49 queue
->head
->prev
= NULL
;
57 g_queue_is_empty (GQueue
*queue
)
62 return queue
->length
== 0;
66 g_queue_push_head (GQueue
*queue
, gpointer head
)
71 queue
->head
= g_list_prepend (queue
->head
, head
);
74 queue
->tail
= queue
->head
;
80 g_queue_push_tail (GQueue
*queue
, gpointer data
)
85 queue
->tail
= g_list_append (queue
->tail
, data
);
86 if (queue
->head
== NULL
)
87 queue
->head
= queue
->tail
;
89 queue
->tail
= queue
->tail
->next
;
96 return g_new0 (GQueue
, 1);
100 g_queue_free (GQueue
*queue
)
105 g_list_free (queue
->head
);