1 /* Copyright (c) 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #ifndef SIMDAG_PRIVATE_H
8 #define SIMDAG_PRIVATE_H
11 #include "xbt/dynar.h"
13 #include "simdag/simdag.h"
14 #include "simdag/datatypes.h"
15 #include "surf/surf.h"
17 #define SD_INITIALISED() (sd_global != NULL)
18 #define SD_CHECK_INIT_DONE() xbt_assert0(SD_INITIALISED(), "Call SD_init() first");
20 /* Global variables */
22 typedef struct SD_global {
23 xbt_dict_t workstations; /* workstation dictionary */
24 int workstation_count; /* number of workstations */
25 SD_workstation_t *workstation_list; /* array of workstations, created only if
26 necessary in SD_workstation_get_list */
28 xbt_dict_t links; /* links */
29 int link_count; /* number of links */
30 SD_link_t *link_list; /* array of links, created only if
31 necessary in SD_link_get_list */
32 SD_link_t *recyclable_route; /* array returned by SD_route_get_list
33 and mallocated only once */
35 int watch_point_reached; /* has a task just reached a watch point? */
38 xbt_swag_t not_scheduled_task_set;
39 xbt_swag_t scheduled_task_set;
40 xbt_swag_t ready_task_set;
41 xbt_swag_t in_fifo_task_set;
42 xbt_swag_t running_task_set;
43 xbt_swag_t done_task_set;
44 xbt_swag_t failed_task_set;
48 } s_SD_global_t, *SD_global_t;
50 extern SD_global_t sd_global;
53 typedef struct SD_link {
54 void *surf_link; /* surf object */
55 void *data; /* user data */
56 e_SD_link_sharing_policy_t sharing_policy;
60 typedef struct SD_workstation {
61 void *surf_workstation; /* surf object */
62 void *data; /* user data */
63 e_SD_workstation_access_mode_t access_mode;
65 xbt_fifo_t task_fifo; /* only used in sequential mode */
66 SD_task_t current_task; /* only used in sequential mode */
70 typedef struct SD_task {
71 s_xbt_swag_hookup_t state_hookup;
73 e_SD_task_state_t state;
74 void *data; /* user data */
81 surf_action_t surf_action;
82 unsigned short watch_points; /* bit field xor()ed with masks */
84 int fifo_checked; /* used by SD_task_just_done to make sure we evaluate
88 xbt_dynar_t tasks_before;
89 xbt_dynar_t tasks_after;
90 unsigned int unsatisfied_dependencies;
92 /* scheduling parameters (only exist in state SD_SCHEDULED) */
94 SD_workstation_t *workstation_list; /* surf workstations */
95 double *computation_amount;
96 double *communication_amount;
100 /* Task dependencies */
101 typedef struct SD_dependency {
106 /* src must be finished before dst can start */
107 } s_SD_dependency_t, *SD_dependency_t;
109 /* SimDag private functions */
111 SD_link_t __SD_link_create(void *surf_link, void *data);
112 void __SD_link_destroy(void *link);
114 SD_workstation_t __SD_workstation_create(void *surf_workstation, void *data);
115 void __SD_workstation_destroy(void *workstation);
116 int __SD_workstation_is_busy(SD_workstation_t workstation);
118 void __SD_task_set_state(SD_task_t task, e_SD_task_state_t new_state);
119 void __SD_task_really_run(SD_task_t task);
120 int __SD_task_try_to_run(SD_task_t task);
121 void __SD_task_just_done(SD_task_t task);
123 /* Functions to test if the task is in a given state. */
125 /* Returns whether the given task is scheduled or ready. */
126 static XBT_INLINE int __SD_task_is_scheduled_or_ready(SD_task_t task)
128 return task->state_set == sd_global->scheduled_task_set ||
129 task->state_set == sd_global->ready_task_set;
132 /* Returns whether the state of the given task is SD_NOT_SCHEDULED. */
133 static XBT_INLINE int __SD_task_is_not_scheduled(SD_task_t task)
135 return task->state_set == sd_global->not_scheduled_task_set;
138 /* Returns whether the state of the given task is SD_SCHEDULED. */
139 static XBT_INLINE int __SD_task_is_scheduled(SD_task_t task)
141 return task->state_set == sd_global->scheduled_task_set;
144 /* Returns whether the state of the given task is SD_READY. */
145 static XBT_INLINE int __SD_task_is_ready(SD_task_t task)
147 return task->state_set == sd_global->ready_task_set;
150 /* Returns whether the state of the given task is SD_IN_FIFO. */
151 static XBT_INLINE int __SD_task_is_in_fifo(SD_task_t task)
153 return task->state_set == sd_global->in_fifo_task_set;
156 /* Returns whether the state of the given task is SD_READY or SD_IN_FIFO. */
157 static XBT_INLINE int __SD_task_is_ready_or_in_fifo(SD_task_t task)
159 return task->state_set == sd_global->ready_task_set ||
160 task->state_set == sd_global->in_fifo_task_set;
163 /* Returns whether the state of the given task is SD_RUNNING. */
164 static XBT_INLINE int __SD_task_is_running(SD_task_t task)
166 return task->state_set == sd_global->running_task_set;