[ported from 2008.3] Add common EDF functions

1 files changed, 27 insertions, 0 deletions

diff --git a/include/litmus/edf_common.h b/include/litmus/edf_common.h
new file mode 100644
index 000000000000..166cdac6bcab
--- /dev/null
+++ b/include/litmus/edf_common.h
@@ -0,0 +1,27 @@
+/*
+ * EDF common data structures and utility functions shared by all EDF
+ * based scheduler plugins
+ */
+
+/* CLEANUP: Add comments and make it less messy.
+ *
+ */
+
+#ifndef __UNC_EDF_COMMON_H__
+#define __UNC_EDF_COMMON_H__
+
+#include <litmus/rt_domain.h>
+
+void edf_domain_init(rt_domain_t* rt, check_resched_needed_t resched,
+                     release_jobs_t release);
+
+int edf_higher_prio(struct task_struct* first,
+                    struct task_struct* second);
+
+int edf_ready_order(struct heap_node* a, struct heap_node* b);
+
+int edf_preemption_needed(rt_domain_t* rt, struct task_struct *t);
+
+int edf_set_hp_task(struct pi_semaphore *sem);
+int edf_set_hp_cpu_task(struct pi_semaphore *sem, int cpu);
+#endif