mirror of https://github.com/trapexit/mergerfs.git
111 lines
2.5 KiB
C++
111 lines
2.5 KiB
C++
/*
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ISC License
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Copyright (c) 2020, Antonio SJ Musumeci <trapexit@spawn.link>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "fuse_readdir.hpp"
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#include "config.hpp"
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#include "fuse_readdir_factory.hpp"
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/*
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The _initialized stuff is not pretty but easiest way to deal with
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the fact that mergerfs is doing arg parsing and setting up of things
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(including thread pools) before the daemonizing
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*/
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int
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FUSE::readdir(const fuse_file_info_t *ffi_,
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fuse_dirents_t *buf_)
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{
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Config::Write cfg;
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return cfg->readdir(ffi_,buf_);
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}
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FUSE::ReadDir::ReadDir(std::string const s_)
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: _initialized(false)
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{
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from_string(s_);
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if(_initialized)
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assert(_readdir);
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}
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std::string
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FUSE::ReadDir::to_string() const
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{
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std::lock_guard<std::mutex> lg(_mutex);
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return _type;
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}
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void
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FUSE::ReadDir::initialize()
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{
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_initialized = true;
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from_string(_type);
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}
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int
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FUSE::ReadDir::from_string(std::string const &str_)
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{
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if(_initialized)
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{
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std::shared_ptr<FUSE::ReadDirBase> tmp;
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tmp = FUSE::ReadDirFactory::make(str_);
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if(!tmp)
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return -EINVAL;
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{
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std::lock_guard<std::mutex> lg(_mutex);
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_type = str_;
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std::swap(_readdir,tmp);
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}
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}
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else
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{
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std::lock_guard<std::mutex> lg(_mutex);
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if(!FUSE::ReadDirFactory::valid(str_))
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return -EINVAL;
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_type = str_;
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}
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return 0;
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}
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/*
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Yeah... if not initialized it will crash... ¯\_(ツ)_/¯
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This will be resolved once initialization of internal objects and
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handling of input is better seperated.
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*/
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int
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FUSE::ReadDir::operator()(fuse_file_info_t const *ffi_,
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fuse_dirents_t *buf_)
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{
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std::shared_ptr<FUSE::ReadDirBase> readdir;
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{
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std::lock_guard<std::mutex> lg(_mutex);
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readdir = _readdir;
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}
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return (*readdir)(ffi_,buf_);
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}
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