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// @file paths.h
// file paths and directory handling
/* Copyright 2010 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#pragma once
#include <boost/filesystem/path.hpp>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "mongo/util/log.h"
#include "mongo/util/mongoutils/str.h"
#include "mongo/db/storage_options.h"
namespace mongo {
using namespace mongoutils;
/** this is very much like a boost::path. however, we define a new type to get some type
checking. if you want to say 'my param MUST be a relative path", use this.
*/
struct RelativePath {
string _p;
bool empty() const { return _p.empty(); }
static RelativePath fromRelativePath(const std::string& f) {
RelativePath rp;
rp._p = f;
return rp;
}
/** from a full path */
static RelativePath fromFullPath(boost::filesystem::path f) {
boost::filesystem::path dbp(storageGlobalParams.dbpath); // normalizes / and backslash
string fullpath = f.string();
string relative = str::after(fullpath, dbp.string());
if( relative.empty() ) {
log() << "warning file is not under db path? " << fullpath << ' ' << dbp.string();
RelativePath rp;
rp._p = fullpath;
return rp;
}
if( str::startsWith(relative, "/") || str::startsWith(relative, "\\") ) {
relative.erase(0, 1);
}
RelativePath rp;
rp._p = relative;
return rp;
}
string toString() const { return _p; }
bool operator!=(const RelativePath& r) const { return _p != r._p; }
bool operator==(const RelativePath& r) const { return _p == r._p; }
bool operator<(const RelativePath& r) const { return _p < r._p; }
string asFullPath() const {
boost::filesystem::path x(storageGlobalParams.dbpath);
x /= _p;
return x.string();
}
};
inline dev_t getPartition(const string& path){
struct stat stats;
if (stat(path.c_str(), &stats) != 0){
uasserted(13646, str::stream() << "stat() failed for file: " << path << " " << errnoWithDescription());
}
return stats.st_dev;
}
inline bool onSamePartition(const string& path1, const string& path2){
dev_t dev1 = getPartition(path1);
dev_t dev2 = getPartition(path2);
return dev1 == dev2;
}
void flushMyDirectory(const boost::filesystem::path& file);
boost::filesystem::path ensureParentDirCreated(const boost::filesystem::path& p);
}
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