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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#ifndef __NM_REF_STRING_H__
#define __NM_REF_STRING_H__
/*****************************************************************************/
typedef struct _NMRefString {
const char *const str;
const gsize len;
} NMRefString;
/*****************************************************************************/
NMRefString *nm_ref_string_new_len(const char *cstr, gsize len);
static inline NMRefString *
nm_ref_string_new(const char *cstr)
{
return cstr ? nm_ref_string_new_len(cstr, strlen(cstr)) : NULL;
}
NMRefString *nm_ref_string_ref(NMRefString *rstr);
void _nm_ref_string_unref_non_null(NMRefString *rstr);
static inline void
nm_ref_string_unref(NMRefString *rstr)
{
if (rstr)
_nm_ref_string_unref_non_null(rstr);
}
NM_AUTO_DEFINE_FCN_VOID0(NMRefString *, _nm_auto_ref_string, _nm_ref_string_unref_non_null);
#define nm_auto_ref_string nm_auto(_nm_auto_ref_string)
/*****************************************************************************/
static inline const char *
nm_ref_string_get_str(NMRefString *rstr)
{
return rstr ? rstr->str : NULL;
}
static inline gsize
nm_ref_string_get_len(NMRefString *rstr)
{
return rstr ? rstr->len : 0u;
}
static inline gboolean
nm_ref_string_equals_str(NMRefString *rstr, const char *s)
{
/* Note that rstr->len might be greater than strlen(rstr->str). This function does
* not cover that and would ignore everything after the first NUL byte. If you need
* that distinction, this function is not for you. */
return rstr ? (s && nm_streq(rstr->str, s)) : (s == NULL);
}
static inline gboolean
NM_IS_REF_STRING(const NMRefString *rstr)
{
#if NM_MORE_ASSERTS > 10
if (rstr) {
nm_auto_ref_string NMRefString *r2 = NULL;
r2 = nm_ref_string_new_len(rstr->str, rstr->len);
nm_assert(rstr == r2);
}
#endif
/* Technically, %NULL is also a valid NMRefString (according to nm_ref_string_new(),
* nm_ref_string_get_str() and nm_ref_string_unref()). However, NM_IS_REF_STRING()
* does not think so. If callers want to allow %NULL, they need to check
* separately. */
return !!rstr;
}
#endif /* __NM_REF_STRING_H__ */
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