path: root/qdict.h
diff options
authorLuiz Capitulino <lcapitulino@redhat.com>2009-08-28 15:27:07 -0300
committerAnthony Liguori <aliguori@us.ibm.com>2009-09-04 09:37:29 -0500
commitfb08dde0988f920fed93d07745790e7ebc12af32 (patch)
tree0309f3eeb38a92d5d5c66c307dd3396ff27ed825 /qdict.h
parent66f7048712693a6ff877209c1ff36aa8eadf2eb5 (diff)
Introduce QDict
QDict is a high-level dictionary data type that can be used to store a collection of QObjects. A unique key is associated with only one QObject. The following functions are available: - qdict_new() Create a new QDict - qdict_put() Add a new 'key:object' pair - qdict_get() Get the QObject of a given key - qdict_del() Delete a 'key:object' pair - qdict_size() Return the size of the dictionary - qdict_haskey() Check if a given 'key' exists Some high-level helpers to operate on QStrings and QInts objects are also provided. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qdict.h')
1 files changed, 42 insertions, 0 deletions
diff --git a/qdict.h b/qdict.h
new file mode 100644
index 000000000..613d16320
--- /dev/null
+++ b/qdict.h
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+#ifndef QDICT_H
+#define QDICT_H
+#include "qobject.h"
+#include "sys-queue.h"
+#include <stdint.h>
+#define QDICT_HASH_SIZE 512
+typedef struct QDictEntry {
+ char *key;
+ QObject *value;
+ LIST_ENTRY(QDictEntry) next;
+} QDictEntry;
+typedef struct QDict {
+ QObject_HEAD;
+ size_t size;
+ LIST_HEAD(,QDictEntry) table[QDICT_HASH_SIZE];
+} QDict;
+/* Object API */
+QDict *qdict_new(void);
+size_t qdict_size(const QDict *qdict);
+void qdict_put_obj(QDict *qdict, const char *key, QObject *value);
+void qdict_del(QDict *qdict, const char *key);
+int qdict_haskey(const QDict *qdict, const char *key);
+QObject *qdict_get(const QDict *qdict, const char *key);
+QDict *qobject_to_qdict(const QObject *obj);
+/* Helper to qdict_put_obj(), accepts any object */
+#define qdict_put(qdict, key, obj) \
+ qdict_put_obj(qdict, key, QOBJECT(obj))
+/* High level helpers */
+int64_t qdict_get_int(const QDict *qdict, const char *key);
+const char *qdict_get_str(const QDict *qdict, const char *key);
+int64_t qdict_get_try_int(const QDict *qdict, const char *key,
+ int64_t err_value);
+const char *qdict_get_try_str(const QDict *qdict, const char *key);
+#endif /* QDICT_H */