blob: 2f2f56f8566165efa1d7357e5543544d63d953f9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
#include "interned_string.hh"
namespace Kakoune
{
InternedString StringRegistry::acquire(StringView str)
{
auto it = m_slot_map.find(str);
if (it == m_slot_map.end())
{
size_t slot;
if (not m_free_slots.empty())
{
slot = m_free_slots.back();
m_free_slots.pop_back();
kak_assert(m_storage[slot].second == 0);
m_storage[slot] = DataAndRefCount({str.begin(), str.end()}, 1);
}
else
{
slot = m_storage.size();
m_storage.push_back(DataAndRefCount({str.begin(), str.end()}, 1));
}
// Create a new string view that point to the storage data
StringView storage_view{m_storage[slot].first.data(), (int)m_storage[slot].first.size()};
m_slot_map[storage_view] = slot;
return InternedString{storage_view, slot};
}
size_t slot = it->second;
auto& data = m_storage[slot];
++data.second;
return {{data.first.data(), (int)data.first.size()}, slot};
}
void StringRegistry::acquire(size_t slot)
{
kak_assert(slot < m_storage.size());
kak_assert(m_storage[slot].second > 0);
++m_storage[slot].second;
}
void StringRegistry::release(size_t slot) noexcept
{
kak_assert(m_storage[slot].second > 0);
if (--m_storage[slot].second == 0)
{
m_free_slots.push_back(slot);
std::vector<char>& data = m_storage[slot].first;
auto it = m_slot_map.find(StringView{data.data(), (int)data.size()});
kak_assert(it != m_slot_map.end());
m_slot_map.erase(it);
data = std::vector<char>{};
}
}
}
|
