[Qemu-devel] [PATCH 02/13] QDict: Small terminology change

[Luiz Capitulino <lcapitulino@redhat.com>]

Let's call a 'hash' only what is returned by our hash function,
anything else is a 'bucket'.

This helps avoiding confusion with regard to how we traverse
our table.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
---
 check-qdict.c |    2 +-
 qdict.c       |   24 ++++++++++++------------
 qdict.h       |    4 ++--
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/check-qdict.c b/check-qdict.c
index 2c3089f..1b070f4 100644
--- a/check-qdict.c
+++ b/check-qdict.c
@@ -50,7 +50,7 @@ START_TEST(qdict_put_obj_test)
     qdict_put_obj(qdict, "", QOBJECT(qint_from_int(num)));
 
     fail_unless(qdict_size(qdict) == 1);
-    ent = QLIST_FIRST(&qdict->table[12345 % QDICT_HASH_SIZE]);
+    ent = QLIST_FIRST(&qdict->table[12345 % QDICT_BUCKET_MAX]);
     qi = qobject_to_qint(ent->value);
     fail_unless(qint_get_int(qi) == num);
 
diff --git a/qdict.c b/qdict.c
index c974d6f..71be2eb 100644
--- a/qdict.c
+++ b/qdict.c
@@ -86,11 +86,11 @@ static QDictEntry *alloc_entry(const char *key, QObject *value)
  * qdict_find(): List lookup function
  */
 static QDictEntry *qdict_find(const QDict *qdict,
-                              const char *key, unsigned int hash)
+                              const char *key, unsigned int bucket)
 {
     QDictEntry *entry;
 
-    QLIST_FOREACH(entry, &qdict->table[hash], next)
+    QLIST_FOREACH(entry, &qdict->table[bucket], next)
         if (!strcmp(entry->key, key))
             return entry;
 
@@ -110,11 +110,11 @@ static QDictEntry *qdict_find(const QDict *qdict,
  */
 void qdict_put_obj(QDict *qdict, const char *key, QObject *value)
 {
-    unsigned int hash;
+    unsigned int bucket;
     QDictEntry *entry;
 
-    hash = tdb_hash(key) % QDICT_HASH_SIZE;
-    entry = qdict_find(qdict, key, hash);
+    bucket = tdb_hash(key) % QDICT_BUCKET_MAX;
+    entry = qdict_find(qdict, key, bucket);
     if (entry) {
         /* replace key's value */
         qobject_decref(entry->value);
@@ -122,7 +122,7 @@ void qdict_put_obj(QDict *qdict, const char *key, QObject *value)
     } else {
         /* allocate a new entry */
         entry = alloc_entry(key, value);
-        QLIST_INSERT_HEAD(&qdict->table[hash], entry, next);
+        QLIST_INSERT_HEAD(&qdict->table[bucket], entry, next);
         qdict->size++;
     }
 }
@@ -137,7 +137,7 @@ QObject *qdict_get(const QDict *qdict, const char *key)
 {
     QDictEntry *entry;
 
-    entry = qdict_find(qdict, key, tdb_hash(key) % QDICT_HASH_SIZE);
+    entry = qdict_find(qdict, key, tdb_hash(key) % QDICT_BUCKET_MAX);
     return (entry == NULL ? NULL : entry->value);
 }
 
@@ -148,8 +148,8 @@ QObject *qdict_get(const QDict *qdict, const char *key)
  */
 int qdict_haskey(const QDict *qdict, const char *key)
 {
-    unsigned int hash = tdb_hash(key) % QDICT_HASH_SIZE;
-    return (qdict_find(qdict, key, hash) == NULL ? 0 : 1);
+    unsigned int bucket = tdb_hash(key) % QDICT_BUCKET_MAX;
+    return (qdict_find(qdict, key, bucket) == NULL ? 0 : 1);
 }
 
 /**
@@ -318,7 +318,7 @@ void qdict_iter(const QDict *qdict,
     int i;
     QDictEntry *entry;
 
-    for (i = 0; i < QDICT_HASH_SIZE; i++) {
+    for (i = 0; i < QDICT_BUCKET_MAX; i++) {
         QLIST_FOREACH(entry, &qdict->table[i], next)
             iter(entry->key, entry->value, opaque);
     }
@@ -347,7 +347,7 @@ void qdict_del(QDict *qdict, const char *key)
 {
     QDictEntry *entry;
 
-    entry = qdict_find(qdict, key, tdb_hash(key) % QDICT_HASH_SIZE);
+    entry = qdict_find(qdict, key, tdb_hash(key) % QDICT_BUCKET_MAX);
     if (entry) {
         QLIST_REMOVE(entry, next);
         qentry_destroy(entry);
@@ -366,7 +366,7 @@ static void qdict_destroy_obj(QObject *obj)
     assert(obj != NULL);
     qdict = qobject_to_qdict(obj);
 
-    for (i = 0; i < QDICT_HASH_SIZE; i++) {
+    for (i = 0; i < QDICT_BUCKET_MAX; i++) {
         QDictEntry *entry = QLIST_FIRST(&qdict->table[i]);
         while (entry) {
             QDictEntry *tmp = QLIST_NEXT(entry, next);
diff --git a/qdict.h b/qdict.h
index 72ea563..dcd2b29 100644
--- a/qdict.h
+++ b/qdict.h
@@ -18,7 +18,7 @@
 #include "qemu-queue.h"
 #include <stdint.h>
 
-#define QDICT_HASH_SIZE 512
+#define QDICT_BUCKET_MAX 512
 
 typedef struct QDictEntry {
     char *key;
@@ -29,7 +29,7 @@ typedef struct QDictEntry {
 typedef struct QDict {
     QObject_HEAD;
     size_t size;
-    QLIST_HEAD(,QDictEntry) table[QDICT_HASH_SIZE];
+    QLIST_HEAD(,QDictEntry) table[QDICT_BUCKET_MAX];
 } QDict;
 
 /* Object API */
-- 
1.7.1.359.gd0b8d