X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=qdict.c;h=7543ccc10ff8d9d3343b157c1f2b3dac77546007;hb=89eb147c2cfd2c797d3662aa2f55254441f0595a;hp=7fb425a0cac830197cdf33050caaa6b1ab159c49;hpb=4a39943bd1fd2ac7e3163f9d9b056394519661f3;p=mirror_qemu.git

diff --git a/qdict.c b/qdict.c
index 7fb425a0ca..7543ccc10f 100644
--- a/qdict.c
+++ b/qdict.c
@@ -1,22 +1,22 @@
 /*
- * QDict data type.
+ * QDict Module
  *
  * Copyright (C) 2009 Red Hat Inc.
  *
  * Authors:
  *  Luiz Capitulino <lcapitulino@redhat.com>
  *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
  */
 
-#include "qint.h"
-#include "qfloat.h"
-#include "qdict.h"
-#include "qbool.h"
-#include "qstring.h"
-#include "qobject.h"
-#include "qemu-queue.h"
+#include "qapi/qmp/qint.h"
+#include "qapi/qmp/qfloat.h"
+#include "qapi/qmp/qdict.h"
+#include "qapi/qmp/qbool.h"
+#include "qapi/qmp/qstring.h"
+#include "qapi/qmp/qobject.h"
+#include "qemu/queue.h"
 #include "qemu-common.h"
 
 static void qdict_destroy_obj(QObject *obj);
@@ -35,7 +35,7 @@ QDict *qdict_new(void)
 {
     QDict *qdict;
 
-    qdict = qemu_mallocz(sizeof(*qdict));
+    qdict = g_malloc0(sizeof(*qdict));
     QOBJECT_INIT(qdict, &qdict_type);
 
     return qdict;
@@ -75,22 +75,43 @@ static QDictEntry *alloc_entry(const char *key, QObject *value)
 {
     QDictEntry *entry;
 
-    entry = qemu_mallocz(sizeof(*entry));
-    entry->key = qemu_strdup(key);
+    entry = g_malloc0(sizeof(*entry));
+    entry->key = g_strdup(key);
     entry->value = value;
 
     return entry;
 }
 
+/**
+ * qdict_entry_value(): Return qdict entry value
+ *
+ * Return weak reference.
+ */
+QObject *qdict_entry_value(const QDictEntry *entry)
+{
+    return entry->value;
+}
+
+/**
+ * qdict_entry_key(): Return qdict entry key
+ *
+ * Return a *pointer* to the string, it has to be duplicated before being
+ * stored.
+ */
+const char *qdict_entry_key(const QDictEntry *entry)
+{
+    return entry->key;
+}
+
 /**
  * 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 +131,11 @@ 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 +143,7 @@ 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 +158,7 @@ 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 +169,8 @@ 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);
 }
 
 /**
@@ -194,8 +215,7 @@ double qdict_get_double(const QDict *qdict, const char *key)
     case QTYPE_QINT:
         return qint_get_int(qobject_to_qint(obj));
     default:
-        assert(0);
-        return 0.0;
+        abort();
     }
 }
 
@@ -273,20 +293,38 @@ const char *qdict_get_str(const QDict *qdict, const char *key)
  *
  * Return integer mapped by 'key', if it is not present in
  * the dictionary or if the stored object is not of QInt type
- * 'err_value' will be returned.
+ * 'def_value' will be returned.
  */
 int64_t qdict_get_try_int(const QDict *qdict, const char *key,
-                          int64_t err_value)
+                          int64_t def_value)
 {
     QObject *obj;
 
     obj = qdict_get(qdict, key);
     if (!obj || qobject_type(obj) != QTYPE_QINT)
-        return err_value;
+        return def_value;
 
     return qint_get_int(qobject_to_qint(obj));
 }
 
+/**
+ * qdict_get_try_bool(): Try to get a bool mapped by 'key'
+ *
+ * Return bool mapped by 'key', if it is not present in the
+ * dictionary or if the stored object is not of QBool type
+ * 'def_value' will be returned.
+ */
+int qdict_get_try_bool(const QDict *qdict, const char *key, int def_value)
+{
+    QObject *obj;
+
+    obj = qdict_get(qdict, key);
+    if (!obj || qobject_type(obj) != QTYPE_QBOOL)
+        return def_value;
+
+    return qbool_get_int(qobject_to_qbool(obj));
+}
+
 /**
  * qdict_get_try_str(): Try to get a pointer to the stored string
  * mapped by 'key'
@@ -319,12 +357,49 @@ 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);
     }
 }
 
+static QDictEntry *qdict_next_entry(const QDict *qdict, int first_bucket)
+{
+    int i;
+
+    for (i = first_bucket; i < QDICT_BUCKET_MAX; i++) {
+        if (!QLIST_EMPTY(&qdict->table[i])) {
+            return QLIST_FIRST(&qdict->table[i]);
+        }
+    }
+
+    return NULL;
+}
+
+/**
+ * qdict_first(): Return first qdict entry for iteration.
+ */
+const QDictEntry *qdict_first(const QDict *qdict)
+{
+    return qdict_next_entry(qdict, 0);
+}
+
+/**
+ * qdict_next(): Return next qdict entry in an iteration.
+ */
+const QDictEntry *qdict_next(const QDict *qdict, const QDictEntry *entry)
+{
+    QDictEntry *ret;
+
+    ret = QLIST_NEXT(entry, next);
+    if (!ret) {
+        unsigned int bucket = tdb_hash(entry->key) % QDICT_BUCKET_MAX;
+        ret = qdict_next_entry(qdict, bucket + 1);
+    }
+
+    return ret;
+}
+
 /**
  * qentry_destroy(): Free all the memory allocated by a QDictEntry
  */
@@ -335,8 +410,8 @@ static void qentry_destroy(QDictEntry *e)
     assert(e->value != NULL);
 
     qobject_decref(e->value);
-    qemu_free(e->key);
-    qemu_free(e);
+    g_free(e->key);
+    g_free(e);
 }
 
 /**
@@ -348,7 +423,7 @@ 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);
@@ -367,7 +442,7 @@ 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);
@@ -377,5 +452,5 @@ static void qdict_destroy_obj(QObject *obj)
         }
     }
 
-    qemu_free(qdict);
+    g_free(qdict);
 }