mirror of
https://github.com/trapexit/mergerfs.git
synced 2026-10-26 19:01:56 -04:00
109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
/*
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Copyright (c) 2016, 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 "config.hpp"
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#include "ugid.hpp"
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#include "fuse.h"
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namespace l
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{
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static
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void
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want(fuse_conn_info *conn_,
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const int flag_)
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{
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conn_->want |= flag_;
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}
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static
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bool
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capable(fuse_conn_info *conn_,
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const int flag_)
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{
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return !!(conn_->capable & flag_);
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}
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static
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void
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want_if_capable(fuse_conn_info *conn_,
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const int flag_)
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{
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if(capable(conn_,flag_))
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want(conn_,flag_);
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}
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static
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void
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want_if_capable(fuse_conn_info *conn_,
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const int flag_,
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ConfigBOOL *want_)
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{
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if(*want_ && l::capable(conn_,flag_))
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{
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l::want(conn_,flag_);
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return;
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}
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*want_ = false;
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}
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static
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void
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want_if_capable_max_pages(fuse_conn_info *conn_,
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Config::Write &cfg_)
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{
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if(l::capable(conn_,FUSE_CAP_MAX_PAGES))
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{
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l::want(conn_,FUSE_CAP_MAX_PAGES);
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conn_->max_pages = cfg_->fuse_msg_size;
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}
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else
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{
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cfg_->fuse_msg_size = FUSE_DEFAULT_MAX_PAGES_PER_REQ;
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}
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}
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}
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namespace FUSE
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{
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void *
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init(fuse_conn_info *conn_)
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{
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Config::Write cfg;
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ugid::init();
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l::want_if_capable(conn_,FUSE_CAP_ASYNC_DIO);
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l::want_if_capable(conn_,FUSE_CAP_ASYNC_READ,&cfg->async_read);
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l::want_if_capable(conn_,FUSE_CAP_ATOMIC_O_TRUNC);
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l::want_if_capable(conn_,FUSE_CAP_BIG_WRITES);
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l::want_if_capable(conn_,FUSE_CAP_CACHE_SYMLINKS,&cfg->cache_symlinks);
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l::want_if_capable(conn_,FUSE_CAP_DONT_MASK);
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l::want_if_capable(conn_,FUSE_CAP_IOCTL_DIR);
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l::want_if_capable(conn_,FUSE_CAP_PARALLEL_DIROPS);
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l::want_if_capable(conn_,FUSE_CAP_READDIR_PLUS,&cfg->readdirplus);
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//l::want_if_capable(conn_,FUSE_CAP_READDIR_PLUS_AUTO);
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l::want_if_capable(conn_,FUSE_CAP_POSIX_ACL,&cfg->posix_acl);
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l::want_if_capable(conn_,FUSE_CAP_WRITEBACK_CACHE,&cfg->writeback_cache);
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l::want_if_capable_max_pages(conn_,cfg);
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conn_->want &= ~FUSE_CAP_POSIX_LOCKS;
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conn_->want &= ~FUSE_CAP_FLOCK_LOCKS;
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return NULL;
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}
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}
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