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[Qemu-devel] [PATCH 2/3] Introduce QString data type
From: |
Luiz Capitulino |
Subject: |
[Qemu-devel] [PATCH 2/3] Introduce QString data type |
Date: |
Thu, 6 Aug 2009 10:52:15 -0300 |
Signed-off-by: Luiz Capitulino <address@hidden>
---
Makefile | 2 +-
qobject.h | 1 +
qstring.c | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
qstring.h | 17 +++++++++++
4 files changed, 108 insertions(+), 1 deletions(-)
create mode 100644 qstring.c
create mode 100644 qstring.h
diff --git a/Makefile b/Makefile
index 2ce539f..9e3faec 100644
--- a/Makefile
+++ b/Makefile
@@ -104,7 +104,7 @@ obj-y += buffered_file.o migration.o migration-tcp.o net.o
qemu-sockets.o
obj-y += qemu-char.o aio.o net-checksum.o savevm.o
obj-y += msmouse.o ps2.o
obj-y += qdev.o qdev-properties.o ssi.o
-obj-y += qdict.o
+obj-y += qdict.o qstring.o
obj-$(CONFIG_BRLAPI) += baum.o
diff --git a/qobject.h b/qobject.h
index b70e669..d3378b1 100644
--- a/qobject.h
+++ b/qobject.h
@@ -16,6 +16,7 @@
typedef enum {
QTYPE_NONE,
+ QTYPE_QSTRING,
} qtype_t;
struct QObject;
diff --git a/qstring.c b/qstring.c
new file mode 100644
index 0000000..b1ddf7b
--- /dev/null
+++ b/qstring.c
@@ -0,0 +1,89 @@
+/*
+ * QString data type.
+ *
+ * Copyright (C) 2009 Red Hat Inc.
+ *
+ * Authors:
+ * Luiz Capitulino <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+#include "qobject.h"
+#include "qstring.h"
+#include "qemu-common.h"
+
+static QType qstring_type;
+
+/**
+ * qstring_from_str(): Create a new QString from a regular C string
+ *
+ * return new QString.
+ */
+QString *qstring_from_str(const char *str)
+{
+ QString *qstring;
+
+ qstring = qemu_mallocz(sizeof(*qstring));
+ qstring->string = qemu_strdup(str);
+ qstring->base.type = &qstring_type;
+
+ return qstring;
+}
+
+/**
+ * qstring_to_str(): Export QString to regular C string
+ *
+ * Return a pointer to a *copy* of the string.
+ */
+char *qstring_to_str(const QString *qstring)
+{
+ return qemu_strdup(qstring->string);
+}
+
+/**
+ * qstring_size(): Return QString string size
+ */
+size_t qstring_size(const QString *qstring)
+{
+ return strlen(qstring->string);
+}
+
+/**
+ * qstring_destroy(): Free all memory allocated by a QString
+ * object
+ */
+void qstring_destroy(QString *qstring)
+{
+ qemu_free(qstring->string);
+ qemu_free(qstring);
+}
+
+/**
+ * qstring_clone_obj(): Clone a QString object
+ *
+ * return a copy of the provided QString object.
+ */
+static QObject *qstring_clone_obj(const QObject *obj)
+{
+ QString *old, *new;
+
+ old = container_of(obj, QString, base);
+ new = qstring_from_str(old->string);
+ return &new->base;
+}
+
+/**
+ * qstring_destroy_obj(): Destroy a QString object
+ */
+static void qstring_destroy_obj(QObject *obj)
+{
+ QString *qstring = container_of(obj, QString, base);
+ qstring_destroy(qstring);
+}
+
+static QType qstring_type = {
+ .code = QTYPE_QSTRING,
+ .clone = qstring_clone_obj,
+ .destroy = qstring_destroy_obj,
+};
diff --git a/qstring.h b/qstring.h
new file mode 100644
index 0000000..1856a12
--- /dev/null
+++ b/qstring.h
@@ -0,0 +1,17 @@
+#ifndef QSTRING_H
+#define QSTRING_H
+
+#include <stddef.h>
+#include "qobject.h"
+
+typedef struct QString {
+ QObject base;
+ char *string;
+} QString;
+
+QString *qstring_from_str(const char *str);
+char *qstring_to_str(const QString *qstring);
+size_t qstring_size(const QString *qstring);
+void qstring_destroy(QString *qstring);
+
+#endif /* QSTRING_H */
--
1.6.4.rc3.12.gdf73a