mirror of
https://github.com/s3fs-fuse/s3fs-fuse.git
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97 lines
3.2 KiB
C++
97 lines
3.2 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_FDINFO_H_
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#define S3FS_FDCACHE_FDINFO_H_
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//------------------------------------------------
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// Structure
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//------------------------------------------------
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typedef struct _mppart_info
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{
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off_t start;
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size_t size;
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bool is_copy;
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std::string etag;
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_mppart_info(off_t part_start = -1, off_t part_size = 0, bool is_copy_part = false, const char* petag = NULL) : start(part_start), size(part_size), is_copy(is_copy_part), etag(NULL == petag ? "" : petag) {}
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}MPPART_INFO;
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typedef std::list<MPPART_INFO> mppart_list_t;
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//------------------------------------------------
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// Class PseudoFdInfo
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//------------------------------------------------
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class PseudoFdInfo
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{
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private:
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int pseudo_fd;
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int physical_fd;
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int flags; // flags at open
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std::string upload_id;
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mppart_list_t upload_list;
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off_t untreated_start; // untreated start position
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off_t untreated_size; // untreated size
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bool is_lock_init;
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pthread_mutex_t upload_list_lock; // protects upload_id and upload_list
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private:
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bool Clear();
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public:
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PseudoFdInfo(int fd = -1, int open_flags = 0);
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~PseudoFdInfo();
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int GetPhysicalFd() const { return physical_fd; }
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int GetPseudoFd() const { return pseudo_fd; }
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int GetFlags() const { return flags; }
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bool Writable() const;
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bool Readable() const;
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bool Set(int fd, int open_flags);
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bool ClearUploadInfo(bool is_clear_part = false, bool lock_already_held = false);
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bool InitialUploadInfo(const std::string& id);
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bool IsUploading() const { return !upload_id.empty(); }
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bool GetUploadId(std::string& id) const;
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bool GetEtaglist(etaglist_t& list);
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bool AppendUploadPart(off_t start, off_t size, bool is_copy = false, int* ppartnum = NULL, std::string** ppetag = NULL);
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void ClearUntreated(bool lock_already_held = false);
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bool GetUntreated(off_t& start, off_t& size);
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bool SetUntreated(off_t start, off_t size);
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};
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typedef std::map<int, class PseudoFdInfo*> fdinfo_map_t;
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#endif // S3FS_FDCACHE_FDINFO_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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