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13#include "qemu/osdep.h"
14#include "qapi/qmp/qstring.h"
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21QString *qstring_new(void)
22{
23 return qstring_from_str("");
24}
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29size_t qstring_get_length(const QString *qstring)
30{
31 return qstring->length;
32}
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39QString *qstring_from_substr(const char *str, size_t start, size_t end)
40{
41 QString *qstring;
42
43 assert(start <= end);
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45 qstring = g_malloc(sizeof(*qstring));
46 qobject_init(QOBJECT(qstring), QTYPE_QSTRING);
47
48 qstring->length = end - start;
49 qstring->capacity = qstring->length;
50
51 assert(qstring->capacity < SIZE_MAX);
52 qstring->string = g_malloc(qstring->capacity + 1);
53 memcpy(qstring->string, str + start, qstring->length);
54 qstring->string[qstring->length] = 0;
55
56 return qstring;
57}
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64QString *qstring_from_str(const char *str)
65{
66 return qstring_from_substr(str, 0, strlen(str));
67}
68
69static void capacity_increase(QString *qstring, size_t len)
70{
71 if (qstring->capacity < (qstring->length + len)) {
72 assert(len <= SIZE_MAX - qstring->capacity);
73 qstring->capacity += len;
74 assert(qstring->capacity <= SIZE_MAX / 2);
75 qstring->capacity *= 2;
76
77 qstring->string = g_realloc(qstring->string, qstring->capacity + 1);
78 }
79}
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83void qstring_append(QString *qstring, const char *str)
84{
85 size_t len = strlen(str);
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87 capacity_increase(qstring, len);
88 memcpy(qstring->string + qstring->length, str, len);
89 qstring->length += len;
90 qstring->string[qstring->length] = 0;
91}
92
93void qstring_append_int(QString *qstring, int64_t value)
94{
95 char num[32];
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97 snprintf(num, sizeof(num), "%" PRId64, value);
98 qstring_append(qstring, num);
99}
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104void qstring_append_chr(QString *qstring, int c)
105{
106 capacity_increase(qstring, 1);
107 qstring->string[qstring->length++] = c;
108 qstring->string[qstring->length] = 0;
109}
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117const char *qstring_get_str(const QString *qstring)
118{
119 return qstring->string;
120}
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127const char *qstring_get_try_str(const QString *qstring)
128{
129 return qstring ? qstring_get_str(qstring) : NULL;
130}
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138const char *qobject_get_try_str(const QObject *qstring)
139{
140 return qstring_get_try_str(qobject_to(QString, qstring));
141}
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146bool qstring_is_equal(const QObject *x, const QObject *y)
147{
148 return !strcmp(qobject_to(QString, x)->string,
149 qobject_to(QString, y)->string);
150}
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156void qstring_destroy_obj(QObject *obj)
157{
158 QString *qs;
159
160 assert(obj != NULL);
161 qs = qobject_to(QString, obj);
162 g_free(qs->string);
163 g_free(qs);
164}
165