Add IF clauses to schedule items

Schedule items in Cactus can already have WHILE clauses, which means
that they are executed while a certain condition are true.  This patch
adds IF clauses, which means that they are executed only if a certain
condition is true.  The syntax is equivalent to WHILE clauses.

These if clauses is different from the existing C-syntax if
statements, which are only evaluated at startup and determine how the
schedule is constructed.  These if clauses are evaluated every time
the schedule is traversed, and can skip certain schedule items.


git-svn-id: http://svn.cactuscode.org/flesh/trunk@4478 17b73243-c579-4c4c-a9d2-2d5706c11dac

1 files changed, 7 insertions, 2 deletions

diff --git a/src/include/cctki_Schedule.h b/src/include/cctki_Schedule.h
index 2b77b826..9361053d 100644
--- a/src/include/cctki_Schedule.h
+++ b/src/include/cctki_Schedule.h
@@ -14,7 +14,11 @@
 
 /* Types needed by other routines. */
 
-typedef enum {sched_mod_none, sched_before, sched_after, sched_while} t_sched_modifier_type;
+typedef enum {
+  sched_mod_none,
+  sched_before, sched_after,
+  sched_while, sched_if
+} t_sched_modifier_type;
 
 typedef struct T_SCHED_MODIFIER
 {
@@ -58,7 +62,8 @@ int CCTKi_DoScheduleSortAllGroups(void);
 int CCTKi_DoScheduleTraverse(const char *group_name,
                              int (*item_entry)(void *, void *),
                              int (*item_exit)(void *, void *),
-                             int  (*while_check)(int, char **, void *, void *, int),
+                             int (*while_check)(int, char **, void *, void *, int),
+                             int (*if_check)(int, char **, void *, void *),
                              int (*function_process)(void *, void *, void *),
                              void *data);