| 1 | /* |
| 2 | * QString Module |
| 3 | * |
| 4 | * Copyright (C) 2009 Red Hat Inc. |
| 5 | * |
| 6 | * Authors: |
| 7 | * Luiz Capitulino <lcapitulino@redhat.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. |
| 10 | * See the COPYING.LIB file in the top-level directory. |
| 11 | */ |
| 12 | |
| 13 | #include "qemu/osdep.h" |
| 14 | #include "qobject/qstring.h" |
| 15 | #include "qobject-internal.h" |
| 16 | |
| 17 | /** |
| 18 | * qstring_new(): Create a new empty QString |
| 19 | * |
| 20 | * Return strong reference. |
| 21 | */ |
| 22 | QString *qstring_new(void) |
| 23 | { |
| 24 | return qstring_from_str(""); |
| 25 | } |
| 26 | |
| 27 | /** |
| 28 | * qstring_from_substr(): Create a new QString from a C string substring |
| 29 | * |
| 30 | * Return string reference |
| 31 | */ |
| 32 | QString *qstring_from_substr(const char *str, size_t start, size_t end) |
| 33 | { |
| 34 | QString *qstring; |
| 35 | |
| 36 | assert(start <= end); |
| 37 | qstring = g_malloc(sizeof(*qstring)); |
| 38 | qobject_init(QOBJECT(qstring), QTYPE_QSTRING); |
| 39 | qstring->string = g_strndup(str + start, end - start); |
| 40 | return qstring; |
| 41 | } |
| 42 | |
| 43 | /** |
| 44 | * qstring_from_str(): Create a new QString from a regular C string |
| 45 | * |
| 46 | * Return strong reference. |
| 47 | */ |
| 48 | QString *qstring_from_str(const char *str) |
| 49 | { |
| 50 | return qstring_from_substr(str, 0, strlen(str)); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * qstring_from_gstring(): Convert a GString to a QString |
| 55 | * |
| 56 | * Return strong reference. |
| 57 | */ |
| 58 | |
| 59 | QString *qstring_from_gstring(GString *gstr) |
| 60 | { |
| 61 | QString *qstring; |
| 62 | |
| 63 | qstring = g_malloc(sizeof(*qstring)); |
| 64 | qobject_init(QOBJECT(qstring), QTYPE_QSTRING); |
| 65 | qstring->string = g_string_free(gstr, false); |
| 66 | return qstring; |
| 67 | } |
| 68 | |
| 69 | |
| 70 | /** |
| 71 | * qstring_get_str(): Return a pointer to the stored string |
| 72 | * |
| 73 | * NOTE: Should be used with caution, if the object is deallocated |
| 74 | * this pointer becomes invalid. |
| 75 | */ |
| 76 | const char *qstring_get_str(const QString *qstring) |
| 77 | { |
| 78 | return qstring->string; |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * qstring_is_equal(): Test whether the two QStrings are equal |
| 83 | */ |
| 84 | bool qstring_is_equal(const QObject *x, const QObject *y) |
| 85 | { |
| 86 | return !strcmp(qobject_to(QString, x)->string, |
| 87 | qobject_to(QString, y)->string); |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * qstring_destroy_obj(): Free all memory allocated by a QString |
| 92 | * object |
| 93 | */ |
| 94 | void qstring_destroy_obj(QObject *obj) |
| 95 | { |
| 96 | QString *qs; |
| 97 | |
| 98 | assert(obj != NULL); |
| 99 | qs = qobject_to(QString, obj); |
| 100 | g_free((char *)qs->string); |
| 101 | g_free(qs); |
| 102 | } |
| 103 | |
| 104 | void qstring_unref(QString *q) |
| 105 | { |
| 106 | qobject_unref(q); |
| 107 | } |