X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fhashtable%2Futils.c;h=8d68ef603736e60c362b20b6bdb25b5a49639fb7;hb=dce89628fd85a875a8dc511d861057f218f3c1c8;hp=8d0e515aecafbb94a347c418f23bf341f719f71c;hpb=5d2e1e66a968d9e555f9b8b00d0589ebfaf3de32;p=lttng-tools.git

diff --git a/src/common/hashtable/utils.c b/src/common/hashtable/utils.c
index 8d0e515ae..8d68ef603 100644
--- a/src/common/hashtable/utils.c
+++ b/src/common/hashtable/utils.c
@@ -48,7 +48,8 @@
  * with 12*3 instructions on 3 integers than you can with 3 instructions on 1
  * byte), but shoehorning those bytes into integers efficiently is messy.
  */
-#define _GNU_SOURCE
+
+#define _LGPL_SOURCE
 #include <assert.h>
 #include <stdint.h>     /* defines uint32_t etc */
 #include <stdio.h>      /* defines printf for tests */
@@ -60,6 +61,7 @@
 #include "utils.h"
 #include <common/compat/endian.h>    /* attempt to define endianness */
 #include <common/common.h>
+#include <common/hashtable/hashtable.h>
 
 /*
  * My best guess at if you are big-endian or little-endian.  This may
@@ -496,6 +498,17 @@ unsigned long hash_key_str(void *key, unsigned long seed)
 	return hashlittle(key, strlen((char *) key), seed);
 }
 
+/*
+ * Hash function for two uint64_t.
+ */
+LTTNG_HIDDEN
+unsigned long hash_key_two_u64(void *key, unsigned long seed)
+{
+	struct lttng_ht_two_u64 *k = (struct lttng_ht_two_u64 *) key;
+
+	return hash_key_u64(&k->key1, seed) ^ hash_key_u64(&k->key2, seed);
+}
+
 /*
  * Hash function compare for number value.
  */
@@ -534,3 +547,20 @@ int hash_match_key_str(void *key1, void *key2)
 
 	return 0;
 }
+
+/*
+ * Hash function compare two uint64_t.
+ */
+LTTNG_HIDDEN
+int hash_match_key_two_u64(void *key1, void *key2)
+{
+	struct lttng_ht_two_u64 *k1 = (struct lttng_ht_two_u64 *) key1;
+	struct lttng_ht_two_u64 *k2 = (struct lttng_ht_two_u64 *) key2;
+
+	if (hash_match_key_u64(&k1->key1, &k2->key1) &&
+			hash_match_key_u64(&k1->key2, &k2->key2)) {
+		return 1;
+	}
+
+	return 0;
+}