2015-06-24 10:24:55 +08:00
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/*
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2016-01-15 05:50:22 +08:00
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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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2015-06-24 10:24:55 +08:00
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string>
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#include <vector>
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2015-08-05 02:03:44 +08:00
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#include <limits>
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2015-06-24 10:24:55 +08:00
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2015-09-16 06:49:18 +08:00
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#include "fs_path.hpp"
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2015-06-24 10:24:55 +08:00
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#include "policy.hpp"
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2016-02-13 08:16:04 +08:00
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#include "success_fail.hpp"
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2015-06-24 10:24:55 +08:00
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using std::string;
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using std::vector;
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using std::size_t;
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2015-07-01 11:35:28 +08:00
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static
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int
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2016-01-30 05:54:39 +08:00
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_newest(const vector<string> &basepaths,
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const char *fusepath,
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vector<const string*> &paths)
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2015-07-01 11:35:28 +08:00
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{
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2016-01-30 05:54:39 +08:00
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int rv;
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struct stat st;
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string fullpath;
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time_t newest;
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2016-02-13 08:16:04 +08:00
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const string *newestbasepath;
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2015-07-01 11:35:28 +08:00
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2016-01-30 05:54:39 +08:00
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newest = std::numeric_limits<time_t>::min();
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2016-02-13 08:16:04 +08:00
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newestbasepath = NULL;
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2015-07-01 11:35:28 +08:00
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for(size_t i = 0, ei = basepaths.size(); i != ei; i++)
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{
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2016-01-30 05:54:39 +08:00
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const string *basepath = &basepaths[i];
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2015-07-01 11:35:28 +08:00
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2015-09-16 06:49:18 +08:00
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fs::path::make(basepath,fusepath,fullpath);
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2015-07-01 11:35:28 +08:00
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rv = ::lstat(fullpath.c_str(),&st);
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2016-02-13 08:16:04 +08:00
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if(LSTAT_SUCCEEDED(rv) && (st.st_mtime >= newest))
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2015-07-01 11:35:28 +08:00
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{
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2016-02-13 08:16:04 +08:00
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newest = st.st_mtime;
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newestbasepath = basepath;
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2015-07-01 11:35:28 +08:00
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}
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}
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2016-02-13 08:16:04 +08:00
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if(newestbasepath == NULL)
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return (errno=ENOENT,POLICY_FAIL);
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2015-07-01 11:35:28 +08:00
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2016-02-13 08:16:04 +08:00
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paths.push_back(newestbasepath);
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2015-07-01 11:35:28 +08:00
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2016-02-13 08:16:04 +08:00
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return POLICY_SUCCESS;
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2015-07-01 11:35:28 +08:00
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}
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2015-06-24 10:24:55 +08:00
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namespace mergerfs
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{
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int
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2015-06-26 05:55:16 +08:00
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Policy::Func::newest(const Category::Enum::Type type,
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const vector<string> &basepaths,
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2016-01-30 05:54:39 +08:00
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const char *fusepath,
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2015-06-26 05:55:16 +08:00
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const size_t minfreespace,
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2016-01-30 05:54:39 +08:00
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vector<const string*> &paths)
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2015-06-24 10:24:55 +08:00
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{
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2015-07-01 11:35:28 +08:00
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return _newest(basepaths,fusepath,paths);
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2015-06-24 10:24:55 +08:00
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}
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}
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