mergerfs/src/func_getattr_newest.cpp
Antonio SJ Musumeci a61b587aed Change getattr and statx to bespoke policies
* Provides: slight improvement in performance as it no longer will
need to find and then act on the files.
* It doesn't make sense to support all original policy types. Most
people used 'newest' or 'ff' and 'combine' is a better default which
has same runtime as 'newest' but with better output.
2025-11-19 23:05:01 -06:00

57 lines
1.3 KiB
C++

#include "func_getattr_newest.hpp"
#include "fs_stat.hpp"
#include "fs_inode.hpp"
#include "timespec_utils.hpp"
#include "symlinkify.hpp"
std::string_view
Func2::GetAttrNewest::name() const
{
return "newest";
}
int
Func2::GetAttrNewest::operator()(const Branches &branches_,
const fs::path &fusepath_,
struct stat *st_,
const FollowSymlinksEnum follow_symlinks_,
const s64 symlinkify_timeout_)
{
int rv;
fs::path fullpath;
const Branch *newest_branch;
newest_branch = nullptr;
for(const auto &branch : branches_)
{
struct stat tmp_st;
fullpath = branch.path / fusepath_;
rv = fs::stat(fullpath,&tmp_st,follow_symlinks_);
if(rv < 0)
continue;
if(!TimeSpec::is_newer(tmp_st.st_mtim,st_->st_mtim))
continue;
*st_ = tmp_st;
newest_branch = &branch;
}
if(!newest_branch)
return -ENOENT;
if(symlinkify_timeout_ >= 0)
{
fullpath = newest_branch->path / fusepath_;
symlinkify::convert_if_can_be_symlink(fullpath,
st_,
symlinkify_timeout_);
}
fs::inode::calc(newest_branch->path,fusepath_,st_);
return 0;
}