1 /* Copyright (c) 2006-2022. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include <xbt/misc.h> /* SG_BEGIN_DECL */
14 /** @addtogroup XBT_graph
15 * @brief A graph data type with several interesting algorithms
20 typedef struct xbt_node *xbt_node_t;
21 typedef struct xbt_edge *xbt_edge_t;
22 typedef struct xbt_graph *xbt_graph_t;
25 /* Be careful of what you do with this structure */
26 typedef struct xbt_node {
28 xbt_dynar_t in; /* not used when the graph is directed */
29 double position_x; /* positive value: negative means undefined */
30 double position_y; /* positive value: negative means undefined */
31 void *data; /* user data */
35 /* Be careful of what you do with this structure */
36 typedef struct xbt_edge {
39 void *data; /* user data */
43 /* Be careful of what you do with this structure */
44 typedef struct xbt_graph {
47 unsigned short int directed;
48 void *data; /* user data */
52 XBT_PUBLIC xbt_graph_t xbt_graph_new_graph(unsigned short int directed, void* data);
53 XBT_PUBLIC xbt_node_t xbt_graph_new_node(const s_xbt_graph_t* g, void* data);
54 XBT_PUBLIC xbt_edge_t xbt_graph_new_edge(const s_xbt_graph_t* g, xbt_node_t src, xbt_node_t dst, void* data);
55 XBT_PUBLIC void* xbt_graph_node_get_data(const s_xbt_node_t* node);
56 XBT_PUBLIC void xbt_graph_node_set_data(xbt_node_t node, void* data);
57 XBT_PUBLIC void* xbt_graph_edge_get_data(const s_xbt_edge_t* edge);
58 XBT_PUBLIC void xbt_graph_edge_set_data(xbt_edge_t edge, void* data);
60 XBT_PUBLIC xbt_edge_t xbt_graph_get_edge(const s_xbt_graph_t* g, const s_xbt_node_t* src, const s_xbt_node_t* dst);
62 XBT_PUBLIC void xbt_graph_free_graph(xbt_graph_t g, void_f_pvoid_t node_free_function,
63 void_f_pvoid_t edge_free_function, void_f_pvoid_t graph_free_function);
65 XBT_PUBLIC xbt_dynar_t xbt_graph_get_nodes(const s_xbt_graph_t* g);
66 XBT_PUBLIC xbt_dynar_t xbt_graph_get_edges(const s_xbt_graph_t* g);
67 XBT_PUBLIC xbt_dynar_t xbt_graph_node_get_outedges(const s_xbt_node_t* n);
68 XBT_PUBLIC xbt_node_t xbt_graph_edge_get_source(const s_xbt_edge_t* e);
69 XBT_PUBLIC xbt_node_t xbt_graph_edge_get_target(const s_xbt_edge_t* e);
72 #endif /* XBT_GRAPH_H */