regressions: Testing of ck_hs_fas functionality.

regressions/ck_hs/benchmark/parallel_bytestring.c

@@ -171,6 +171,16 @@ set_replace(const char *value)
 	return ck_hs_set(&hs, h, value, &previous);
 }
 
+static bool
+set_swap(const char *value)
+{
+	unsigned long h;
+	void *previous;
+
+	h = CK_HS_HASH(&hs, hs_hash, value);
+	return ck_hs_fas(&hs, h, value, &previous);
+}
+
 static void *
 set_get(const char *value)
 {
@@ -205,7 +215,6 @@ set_reset(void)
 	return ck_hs_reset(&hs);
 }
 
-
 static void *
 reader(void *unused)
 {
@@ -469,8 +478,13 @@ main(int argc, char *argv[])
 	for (;;) {
 		repeated++;
 		s = rdtsc();
-		for (i = 0; i < keys_length; i++)
+		for (i = 0; i < keys_length; i++) {
-			set_replace(keys[i]);
+			if (i & 1) {
+				set_replace(keys[i]);
+			} else {
+				set_swap(keys[i]);
+			}
+		}
 		e = rdtsc();
 		a += e - s;
 
@@ -542,8 +556,13 @@ main(int argc, char *argv[])
 			}
 			if (p_r != 0.0) {
 				replace = common_drand48();
-				if (replace <= p_r)
+				if (replace <= p_r) {
-					set_replace(keys[i]);
+					if ((i & 1) || (delete <= p_d)) {
+						set_replace(keys[i]);
+					} else {
+						set_swap(keys[i]);
+					}
+				}
 			}
 		}
 		e = rdtsc();

regressions/ck_hs/benchmark/serial.c

@@ -107,6 +107,16 @@ set_remove(const char *value)
 	return true;
 }
 
+static bool
+set_swap(const char *value)
+{
+	unsigned long h;
+	void *previous;
+
+	h = CK_HS_HASH(&hs, hs_hash, value);
+	return ck_hs_fas(&hs, h, value, &previous);
+}
+
 static bool
 set_replace(const char *value)
 {
@@ -178,7 +188,7 @@ main(int argc, char *argv[])
 	char buffer[512];
 	size_t i, j, r;
 	unsigned int d = 0;
-	uint64_t s, e, a, ri, si, ai, sr, rg, sg, ag, sd, ng;
+	uint64_t s, e, a, ri, si, ai, sr, rg, sg, ag, sd, ng, ss;
 	struct ck_hs_stat st;
 	char **t;
 
@@ -226,7 +236,7 @@ main(int argc, char *argv[])
 	fprintf(stderr, "# %zu entries stored, %u duplicates, %u probe.\n",
 	    set_count(), d, st.probe_maximum);
 
-	fprintf(stderr, "#    reverse_insertion serial_insertion random_insertion serial_replace reverse_get serial_get random_get serial_remove negative_get\n\n");
+	fprintf(stderr, "#    reverse_insertion serial_insertion random_insertion serial_swap serial_replace reverse_get serial_get random_get serial_remove negative_get\n\n");
 
 	a = 0;
 	for (j = 0; j < r; j++) {
@@ -272,6 +282,16 @@ main(int argc, char *argv[])
 	}
 	ai = a / (r * keys_length);
 
+	a = 0;
+	for (j = 0; j < r; j++) {
+		s = rdtsc();
+		for (i = 0; i < keys_length; i++)
+			set_swap(keys[i]);
+		e = rdtsc();
+		a += e - s;
+	}
+	ss = a / (r * keys_length);
+
 	a = 0;
 	for (j = 0; j < r; j++) {
 		s = rdtsc();
@@ -360,8 +380,9 @@ main(int argc, char *argv[])
 	    "%" PRIu64 " "
 	    "%" PRIu64 " "
 	    "%" PRIu64 " "
+	    "%" PRIu64 " "
 	    "%" PRIu64 "\n",
-	    keys_length, ri, si, ai, sr, rg, sg, ag, sd, ng);
+	    keys_length, ri, si, ai, ss, sr, rg, sg, ag, sd, ng);
 
 	return 0;
 }

regressions/ck_hs/validate/serial.c

@@ -171,6 +171,18 @@ main(void)
 			    test[i], (char *)r);
 		}
 
+		/* Replacement should succeed. */
+		if (ck_hs_fas(&hs, h, test[i], &r) == false)
+			ck_error("ERROR: ck_hs_fas must succeed.\n");
+
+		if (strcmp(r, test[i]) != 0) {
+			ck_error("ERROR: Incorrect replaced value: %s != %s\n",
+			    test[i], (char *)r);
+		}
+
+		if (ck_hs_fas(&hs, h, negative, &r) == true)
+			ck_error("ERROR: Replacement of negative should fail.\n");
+
 		if (ck_hs_set(&hs, h, test[i], &r) == false) {
 			ck_error("ERROR: Failed to set [1]\n");
 		}