add port of perf test from high-scale-lib

[nbds] / map / hashtable.c

diff --git a/map/hashtable.c b/map/hashtable.c
index 231384c22cb626ac8f6e03ed8991cd7fcd719602..34d04d5a0ede98273b730242cc92ed911929888c 100644 (file)
--- a/map/hashtable.c
+++ b/map/hashtable.c
@@ -288,8 +288,8 @@ static int hti_copy_entry (hti_t *ht1, volatile entry_t *ht1_ent, uint32_t key_h
     // Update the count if we were the one that completed the copy.
     if (old_ht2_ent_val == DOES_NOT_EXIST) {
         TRACE("h0", "hti_copy_entry: key %p value %p copied to new entry", key, ht1_ent_val);
-        SYNC_ADD(&ht1->count, -1);
-        SYNC_ADD(&ht2->count, 1);
+        (void)SYNC_ADD(&ht1->count, -1);
+        (void)SYNC_ADD(&ht2->count, 1);
         return TRUE;
     }
 
@@ -374,9 +374,9 @@ static map_val_t hti_cas (hti_t *hti, map_key_t key, uint32_t key_hash, map_val_
     map_val_t ent_val = ent->val;
     if (EXPECT_FALSE(IS_TAGGED(ent_val, TAG1))) {
         if (ent_val != COPIED_VALUE && ent_val != TAG_VALUE(TOMBSTONE, TAG1)) {
-            int did_copy = hti_copy_entry(hti, ent, key_hash, ((volatile hti_t *)hti)->next);
+            int did_copy = hti_copy_entry(hti, ent, key_hash, VOLATILE_DEREF(hti).next);
             if (did_copy) {
-                SYNC_ADD(&hti->num_entries_copied, 1);
+                (void)SYNC_ADD(&hti->num_entries_copied, 1);
             }
             TRACE("h0", "hti_cas: value in the middle of a copy, copy completed by %s", 
                         (did_copy ? "self" : "other"), 0);
@@ -410,9 +410,9 @@ static map_val_t hti_cas (hti_t *hti, map_key_t key, uint32_t key_hash, map_val_
 
     // The set succeeded. Adjust the value count.
     if (old_existed && new == DOES_NOT_EXIST) {
-        SYNC_ADD(&hti->count, -1);
+        (void)SYNC_ADD(&hti->count, -1);
     } else if (!old_existed && new != DOES_NOT_EXIST) {
-        SYNC_ADD(&hti->count, 1);
+        (void)SYNC_ADD(&hti->count, 1);
     }
 
     // Return the previous value.
@@ -429,7 +429,7 @@ static map_val_t hti_get (hti_t *hti, map_key_t key, uint32_t key_hash) {
     // searching the table. In that case, if a copy is in progress the key 
     // might exist in the copy.
     if (EXPECT_FALSE(ent == NULL)) {
-        if (((volatile hti_t *)hti)->next != NULL)
+        if (VOLATILE_DEREF(hti).next != NULL)
             return hti_get(hti->next, key, key_hash); // recursive tail-call
         return DOES_NOT_EXIST;
     }
@@ -441,12 +441,12 @@ static map_val_t hti_get (hti_t *hti, map_key_t key, uint32_t key_hash) {
     map_val_t ent_val = ent->val;
     if (EXPECT_FALSE(IS_TAGGED(ent_val, TAG1))) {
         if (EXPECT_FALSE(ent_val != COPIED_VALUE && ent_val != TAG_VALUE(TOMBSTONE, TAG1))) {
-            int did_copy = hti_copy_entry(hti, ent, key_hash, ((volatile hti_t *)hti)->next);
+            int did_copy = hti_copy_entry(hti, ent, key_hash, VOLATILE_DEREF(hti).next);
             if (did_copy) {
-                SYNC_ADD(&hti->num_entries_copied, 1);
+                (void)SYNC_ADD(&hti->num_entries_copied, 1);
             }
         }
-        return hti_get(((volatile hti_t *)hti)->next, key, key_hash); // tail-call
+        return hti_get(VOLATILE_DEREF(hti).next, key, key_hash); // tail-call
     }
 
     return (ent_val == TOMBSTONE) ? DOES_NOT_EXIST : ent_val;