microblaze_boot: enabled -dtb argument

[qemu.git] / qstring.c

diff --git a/qstring.c b/qstring.c
index 9fa2e3024eddff618c1d4f113901144758212881..b7e12e40158200362b196aa566c3024d89360472 100644 (file)
--- a/qstring.c
+++ b/qstring.c
@@ -1,36 +1,109 @@
 /*
- * QString data type.
+ * QString Module
  *
  * Copyright (C) 2009 Red Hat Inc.
  *
  * Authors:
  *  Luiz Capitulino <[email protected]>
  *
- * 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 "qobject.h"
 #include "qstring.h"
 #include "qemu-common.h"
 
-static const QType qstring_type;
+static void qstring_destroy_obj(QObject *obj);
+
+static const QType qstring_type = {
+    .code = QTYPE_QSTRING,
+    .destroy = qstring_destroy_obj,
+};
 
 /**
- * qstring_from_str(): Create a new QString from a regular C string
+ * qstring_new(): Create a new empty QString
  *
  * Return strong reference.
  */
-QString *qstring_from_str(const char *str)
+QString *qstring_new(void)
+{
+    return qstring_from_str("");
+}
+
+/**
+ * qstring_from_substr(): Create a new QString from a C string substring
+ *
+ * Return string reference
+ */
+QString *qstring_from_substr(const char *str, int start, int end)
 {
     QString *qstring;
 
-    qstring = qemu_malloc(sizeof(*qstring));
-    qstring->string = qemu_strdup(str);
+    qstring = g_malloc(sizeof(*qstring));
+
+    qstring->length = end - start + 1;
+    qstring->capacity = qstring->length;
+
+    qstring->string = g_malloc(qstring->capacity + 1);
+    memcpy(qstring->string, str + start, qstring->length);
+    qstring->string[qstring->length] = 0;
+
     QOBJECT_INIT(qstring, &qstring_type);
 
     return qstring;
 }
 
+/**
+ * qstring_from_str(): Create a new QString from a regular C string
+ *
+ * Return strong reference.
+ */
+QString *qstring_from_str(const char *str)
+{
+    return qstring_from_substr(str, 0, strlen(str) - 1);
+}
+
+static void capacity_increase(QString *qstring, size_t len)
+{
+    if (qstring->capacity < (qstring->length + len)) {
+        qstring->capacity += len;
+        qstring->capacity *= 2; /* use exponential growth */
+
+        qstring->string = g_realloc(qstring->string, qstring->capacity + 1);
+    }
+}
+
+/* qstring_append(): Append a C string to a QString
+ */
+void qstring_append(QString *qstring, const char *str)
+{
+    size_t len = strlen(str);
+
+    capacity_increase(qstring, len);
+    memcpy(qstring->string + qstring->length, str, len);
+    qstring->length += len;
+    qstring->string[qstring->length] = 0;
+}
+
+void qstring_append_int(QString *qstring, int64_t value)
+{
+    char num[32];
+
+    snprintf(num, sizeof(num), "%" PRId64, value);
+    qstring_append(qstring, num);
+}
+
+/**
+ * qstring_append_chr(): Append a C char to a QString
+ */
+void qstring_append_chr(QString *qstring, int c)
+{
+    capacity_increase(qstring, 1);
+    qstring->string[qstring->length++] = c;
+    qstring->string[qstring->length] = 0;
+}
+
 /**
  * qobject_to_qstring(): Convert a QObject to a QString
  */
@@ -63,11 +136,6 @@ static void qstring_destroy_obj(QObject *obj)
 
     assert(obj != NULL);
     qs = qobject_to_qstring(obj);
-    qemu_free(qs->string);
-    qemu_free(qs);
+    g_free(qs->string);
+    g_free(qs);
 }
-
-static const QType qstring_type = {
-    .code = QTYPE_QSTRING,
-    .destroy = qstring_destroy_obj,
-};