63 lines
2.9 KiB
C
63 lines
2.9 KiB
C
/*
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Copyright (c) 2014 Anton Titov.
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Copyright (c) 2014 pCloud Ltd. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met: Redistributions of source code must retain the above
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copyright notice, this list of conditions and the following
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disclaimer. Redistributions in binary form must reproduce the
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above copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided
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with the distribution. Neither the name of pCloud Ltd nor the
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names of its contributors may be used to endorse or promote
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products derived from this software without specific prior written
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permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL pCloud
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Ltd BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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DAMAGE.
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*/
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#ifndef _PSYNC_PAGECACHE_H
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#define _PSYNC_PAGECACHE_H
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#include "pfs.h"
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typedef struct {
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uint64_t offset;
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uint64_t size;
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char *buf;
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} psync_pagecache_read_range;
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void psync_pagecache_init();
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int psync_pagecache_flush();
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int psync_pagecache_read_modified_locked(psync_openfile_t *of, char *buf, uint64_t size, uint64_t offset);
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int psync_pagecache_read_unmodified_locked(psync_openfile_t *of, char *buf, uint64_t size, uint64_t offset);
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int psync_pagecache_read_unmodified_encrypted_locked(psync_openfile_t *of, char *buf, uint64_t size, uint64_t offset);
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int psync_pagecache_readv_locked(psync_openfile_t *of, psync_pagecache_read_range *ranges, int cnt);
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void psync_pagecache_creat_to_pagecache(uint64_t taskid, uint64_t hash, int onthisthread);
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void psync_pagecache_modify_to_pagecache(uint64_t taskid, uint64_t hash, uint64_t oldhash);
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int psync_pagecache_have_all_pages_in_cache(uint64_t hash, uint64_t size);
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int psync_pagecache_copy_all_pages_from_cache_to_file_locked(psync_openfile_t *of, uint64_t hash, uint64_t size);
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int psync_pagecache_lock_pages_in_cache();
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void psync_pagecache_unlock_pages_from_cache();
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void psync_pagecache_resize_cache();
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uint64_t psync_pagecache_free_from_read_cache(uint64_t size);
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void psync_pagecache_clean_cache();
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void psync_pagecache_reopen_read_cache();
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void psync_pagecache_clean_read_cache();
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int psync_pagecache_move_cache(const char *path);
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#endif
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