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Kernel: Improvements to Custody absolute path serialization

- Renamed try_create_absolute_path() => try_serialize_absolute_path()
- Use KResultOr and TRY() to propagate errors
- Don't call this when it's only for debug logging
This commit is contained in:
Andreas Kling 2021-09-06 12:24:36 +02:00
parent f173f73f10
commit cda2b9e71c
6 changed files with 21 additions and 33 deletions

View file

@ -71,10 +71,14 @@ Custody::~Custody()
{
}
OwnPtr<KString> Custody::try_create_absolute_path() const
KResultOr<NonnullOwnPtr<KString>> Custody::try_serialize_absolute_path() const
{
if (!parent())
return KString::try_create("/"sv);
if (!parent()) {
auto string = KString::try_create("/"sv);
if (!string)
return ENOMEM;
return string.release_nonnull();
}
Vector<Custody const*, 32> custody_chain;
size_t path_length = 0;
@ -87,7 +91,7 @@ OwnPtr<KString> Custody::try_create_absolute_path() const
char* buffer;
auto string = KString::try_create_uninitialized(path_length - 1, buffer);
if (!string)
return string;
return ENOMEM;
size_t string_index = 0;
for (size_t custody_index = custody_chain.size() - 1; custody_index > 0; --custody_index) {
buffer[string_index] = '/';
@ -98,7 +102,7 @@ OwnPtr<KString> Custody::try_create_absolute_path() const
}
VERIFY(string->length() == string_index);
buffer[string_index] = 0;
return string;
return string.release_nonnull();
}
String Custody::absolute_path() const