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103 lines
2.4 KiB
C++
103 lines
2.4 KiB
C++
#include "func_create_ff.hpp"
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#include "fileinfo.hpp"
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#include "fs_acl.hpp"
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#include "fs_info.hpp"
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#include "fs_open.hpp"
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#include "func_open_create_utils.hpp"
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#include "ugid.hpp"
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#include <errno.h>
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Func::CreateFF::CreateFF()
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{
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}
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Func::CreateFF::~CreateFF()
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{
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}
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namespace l
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{
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static
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int
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create(Branches2 &branches_,
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ghc::filesystem::path const &fusepath_,
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mode_t const mode_,
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mode_t const umask_,
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fuse_file_info_t *ffi_)
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{
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int rv;
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mode_t mode;
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FileInfo *fi;
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fs::info_t info;
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ghc::filesystem::path fullpath;
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mode = mode_;
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for(auto &tier : branches_)
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{
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for(auto &branch : tier)
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{
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if(branch.mode != +Branch2::Mode::RW)
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continue;
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rv = fs::info(branch.path,&info);
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if(rv == -1)
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continue;
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if(info.readonly)
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continue;
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if(info.spaceavail < branch.min_free_space)
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continue;
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fullpath = branch.path / fusepath_;
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if(!fs::acl::dir_has_defaults(fullpath))
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mode_ &= ~umask_;
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rv = fs::open(fullpath,ffi_->flags,mode_);
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if((rv == -1) && (errno == ENOENT))
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{
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branches_.clonepath(branch.path,fusepath_);
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rv = fs::open(fullpath,ffi_->flags,mode_);
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}
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if((rv == -1) && (errno == EROFS))
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{
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branch.mode = Branch2::Mode::RO;
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continue;
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}
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fi = new FileInfo(rv,fusepath_.string().c_str(),ffi_->direct_io);
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ffi_->fh = reinterpret_cast<uint64_t>(fi);
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return 0;
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}
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}
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return rv;
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}
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}
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int
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Func::CreateFF::operator()(Branches2 &branches_,
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ghc::filesystem::path const &fusepath_,
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mode_t const mode_,
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fuse_file_info_t *ffi_)
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{
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int rv;
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Config::Read cfg;
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fuse_context const *fc = fuse_get_context();
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ugid::Set const ugid(fc->uid,fc->gid);
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utils::cfg_to_ffi_flags(cfg,fc->pid,ffi_);
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if(cfg->writeback_cache)
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utils::tweak_flags_writeback_cache(&ffi_->flags);
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ffi_->noflush = !utils::calculate_flush(cfg->flushonclose,ffi_->flags);
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rv = l::create(branches_,fusepath_,mode_,fc->umask,ffi_);
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return rv;
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}
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