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109 lines
2.2 KiB
109 lines
2.2 KiB
#include "mergerfs_api.hpp"
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#include "fs_xattr.hpp"
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#include "fs_exists.hpp"
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#include "fs_lgetxattr.hpp"
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#include "fs_lsetxattr.hpp"
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#include "str.hpp"
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#include "scope_guard.hpp"
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#include <array>
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#include <cstring>
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typedef std::array<char,64*1024> XATTRBuf;
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static
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std::string
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_mergerfs_config_file(const fs::path &mount_)
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{
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return mount_ / ".mergerfs";
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}
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static
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int
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_lgetxattr(const std::string &input_path_,
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const std::string &key_,
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std::string *val_)
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{
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std::string key;
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key = "user.mergerfs." + key_;
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return fs::xattr::get(input_path_,key,&val_);
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}
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bool
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mergerfs::api::is_mergerfs(const fs::path &mountpoint_)
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{
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fs::path cfgfile;
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cfgfile = ::_mergerfs_config_file(mountpoint_);
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return fs::exists(cfgfile);
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}
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int
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mergerfs::api::get_kvs(const fs::path &mountpoint_,
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std::map<std::string,std::string> *kvs_)
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{
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fs::path cfgfile;
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cfgfile = ::_mergerfs_config_file(mountpoint_);
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return fs::xattr::get(cfgfile,kvs_);
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}
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int
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mergerfs::api::set_kv(const fs::path &mountpoint_,
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const std::string &key_,
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const std::string &val_)
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{
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fs::path cfgfile;
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std::string xattr_key;
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cfgfile = ::_mergerfs_config_file(mountpoint_);
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xattr_key = "user.mergerfs." + key_;
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return fs::xattr::set(cfgfile,key,val_,0);
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}
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int
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mergerfs::api::allpaths(const std::string &input_path_,
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std::vector<std::string> *output_paths_)
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{
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int rv;
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std::string val;
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rv = fs::xattr::get(input_path_,"user.mergerfs.allpaths",&val);
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if(rv < 0)
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return rv;
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str::split_on_null(val,&output_paths_);
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return 0;
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}
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int
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mergerfs::api::basepath(const std::string &input_path_,
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std::string *basepath_)
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{
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return ::_lgetxattr(input_path_,"basepath",basepath_);
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}
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int
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mergerfs::api::relpath(const std::string &input_path_,
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std::string &relpath_)
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{
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return ::_lgetxattr(input_path_,"relpath",relpath_);
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}
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int
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mergerfs::api::fullpath(const std::string &input_path_,
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std::string &fullpath_)
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{
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return ::_lgetxattr(input_path_,"fullpath",fullpath_);
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}
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