Ported global OMLP from BBB's dissertation work forward.

2 files changed, 13 insertions, 0 deletions

diff --git a/include/litmus.h b/include/litmus.h
index 335ecac..a50f996 100644
--- a/include/litmus.h
+++ b/include/litmus.h
@@ -178,6 +178,7 @@ typedef enum  {
         DPCP_SEM        = 4, /**< Distributed Priority Ceiling Protocol */
         PCP_SEM         = 5, /**< Priority Ceiling Protocol */
         DFLP_SEM        = 6, /**< Distributed FIFO Locking Protocol */
+        OMLP_SEM        = 7, /**< Global O(m) Locking Protocol */
 } obj_type_t;
 
 /**
@@ -454,6 +455,17 @@ static inline int open_dflp_sem(int fd, int name, int cpu)
 }
 
 /**
+ * Allocate a semaphore following the global OMLP protocol
+ * @param fd File descriptor to associate lock with
+ * @param name Name of the lock, user-chosen integer
+ * @return Object descriptor for given lock
+ */
+static inline int open_omlp_sem(int fd, int name)
+{
+        return od_open(fd, OMLP_SEM, name);
+}
+
+/**
  * Get budget information from the scheduler (in nanoseconds).
  * @param expended pointer to time value in wich the total
  *        amount of already used-up budget will be stored.
diff --git a/src/litmus.c b/src/litmus.c
index eb33c41..4d9e986 100644
--- a/src/litmus.c
+++ b/src/litmus.c
@@ -27,6 +27,7 @@ static struct {
         LP(DPCP),
         LP(PCP),
         LP(DFLP),
+        LP(OMLP),
 };
 
 #define NUM_PROTOS (sizeof(protocol)/sizeof(protocol[0]))