Merge branch 'release/0.0.1'

[catta] / src / prioq.h

diff --git a/src/prioq.h b/src/prioq.h
new file mode 100644 (file)
index 0000000..33f411a
--- /dev/null
+++ b/src/prioq.h
@@ -0,0 +1,49 @@
+#ifndef fooprioqhfoo
+#define fooprioqhfoo
+
+/***
+  This file is part of catta.
+
+  catta is free software; you can redistribute it and/or modify it
+  under the terms of the GNU Lesser General Public License as
+  published by the Free Software Foundation; either version 2.1 of the
+  License, or (at your option) any later version.
+
+  catta 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 Lesser General
+  Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with catta; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+typedef struct CattaPrioQueue CattaPrioQueue;
+typedef struct CattaPrioQueueNode CattaPrioQueueNode;
+
+typedef int (*CattaPQCompareFunc)(const void* a, const void* b);
+
+struct CattaPrioQueue {
+    CattaPrioQueueNode *root, *last;
+    unsigned n_nodes;
+    CattaPQCompareFunc compare;
+};
+
+struct CattaPrioQueueNode {
+    CattaPrioQueue *queue;
+    void* data;
+    unsigned x, y;
+    CattaPrioQueueNode *left, *right, *parent, *next, *prev;
+};
+
+CattaPrioQueue* catta_prio_queue_new(CattaPQCompareFunc compare);
+void catta_prio_queue_free(CattaPrioQueue *q);
+
+CattaPrioQueueNode* catta_prio_queue_put(CattaPrioQueue *q, void* data);
+void catta_prio_queue_remove(CattaPrioQueue *q, CattaPrioQueueNode *n);
+
+void catta_prio_queue_shuffle(CattaPrioQueue *q, CattaPrioQueueNode *n);
+
+#endif