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scan: add scan_freq_set_to_fixed_array

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This serializes a scan_freq_set into a uint32_t array.
This commit is contained in:
James Prestwood 2021-11-30 10:24:12 -08:00 committed by Denis Kenzior
parent 9c732cb32d
commit 94cdbb4669
2 changed files with 35 additions and 0 deletions
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33
src/util.c
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@ -470,3 +470,36 @@ void scan_freq_set_constrain(struct scan_freq_set *set,
set->channels_2ghz &= constraint->channels_2ghz;
}
static void add_foreach(uint32_t freq, void *user_data)
{
uint32_t **list = user_data;
**list = freq;
*list = *list + 1;
}
uint32_t *scan_freq_set_to_fixed_array(const struct scan_freq_set *set,
size_t *len_out)
{
uint8_t count = 0;
uint32_t *freqs;
count = __builtin_popcount(set->channels_2ghz) +
l_uintset_size(set->channels_5ghz);
if (!count)
return NULL;
freqs = l_new(uint32_t, count);
scan_freq_set_foreach(set, add_foreach, &freqs);
/* Move pointer back to start of list */
freqs -= count;
*len_out = count;
return freqs;
}

2
src/util.h
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@ -115,5 +115,7 @@ void scan_freq_set_merge(struct scan_freq_set *to,
void scan_freq_set_constrain(struct scan_freq_set *set,
const struct scan_freq_set *constraint);
bool scan_freq_set_isempty(const struct scan_freq_set *set);
uint32_t *scan_freq_set_to_fixed_array(const struct scan_freq_set *set,
size_t *len_out);
#endif /* __UTIL_H */