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https://github.com/s3fs-fuse/s3fs-fuse.git
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77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
/*
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* s3fs - FUSE-based file system backed by Amazon S3
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*
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* Copyright(C) 2007 Randy Rizun <rrizun@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef S3FS_FDCACHE_UNTREATED_H_
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#define S3FS_FDCACHE_UNTREATED_H_
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#include "common.h"
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#include "types.h"
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//------------------------------------------------
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// Class UntreatedParts
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//------------------------------------------------
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class UntreatedParts
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{
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private:
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mutable pthread_mutex_t untreated_list_lock; // protects untreated_list
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bool is_lock_init;
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untreated_list_t untreated_list;
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long last_tag; // [NOTE] Use this to identify the latest updated part.
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private:
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bool RowGetPart(off_t& start, off_t& size, off_t max_size, off_t min_size, bool lastpart) const;
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public:
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UntreatedParts();
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~UntreatedParts();
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UntreatedParts(const UntreatedParts&) = delete;
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UntreatedParts(UntreatedParts&&) = delete;
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UntreatedParts& operator=(const UntreatedParts&) = delete;
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UntreatedParts& operator=(UntreatedParts&&) = delete;
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bool empty();
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bool AddPart(off_t start, off_t size);
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bool GetLastUpdatedPart(off_t& start, off_t& size, off_t max_size, off_t min_size = MIN_MULTIPART_SIZE) const { return RowGetPart(start, size, max_size, min_size, true); }
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bool ClearParts(off_t start, off_t size);
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bool ClearAll() { return ClearParts(0, 0); }
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bool GetLastUpdatePart(off_t& start, off_t& size) const;
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bool ReplaceLastUpdatePart(off_t start, off_t size);
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bool RemoveLastUpdatePart();
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bool Duplicate(untreated_list_t& list);
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void Dump();
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};
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#endif // S3FS_FDCACHE_UNTREATED_H_
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: expandtab sw=4 ts=4 fdm=marker
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* vim<600: expandtab sw=4 ts=4
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*/
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