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  • Committer: paul-mccullagh
  • Date: 2008-03-10 11:36:34 UTC
  • Revision ID: paul-mccullagh-417ebf175a9c8ee6e5b3777d9e2398e1fb197391
Implemented full durability

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pbxt/src/filesys_xt.h
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/* Copyright (c) 2005 SNAP Innovation GmbH
 
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/* Copyright (c) 2005 PrimeBase Technologies GmbH
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 *
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 * PrimeBase XT
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 *
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#include "xt_defs.h"
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#ifdef XT_WIN
 
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#define XT_FILE_NOT_FOUND(x)    ((x) == ERROR_FILE_NOT_FOUND || (x) == ERROR_PATH_NOT_FOUND)
 
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#else
 
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#define XT_FILE_NOT_FOUND(x)    ((x) == ENOENT)
 
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#endif
 
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struct XTOpenFile;
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#define XT_MASK                         ((S_IRUSR | S_IWUSR) | (S_IRGRP | S_IWGRP) | (S_IROTH))
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#define XT_FS_CREATE            2               /* Create if the file does not exist. */
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#define XT_FS_EXCLUSIVE         4               /* Create, and generate an error if it already exists. */
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#define XT_FS_MISSING_OK        8               /* Set this flag if you don't want to throw an error if the file does not exist! */
 
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#define XT_FS_MAKE_PATH         16              /* Create the path if it does not exist. */
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xtBool                  xt_fs_exists(char *path);
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xtBool                  xt_fs_delete(struct XTThread *self, char *path);
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xtBool                  xt_fs_file_not_found(int err);
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void                    xt_fs_mkdir(struct XTThread *self, char *path);
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void                    xt_fs_rmdir(struct XTThread *self, char *path);
 
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void                    xt_fs_mkpath(struct XTThread *self, char *path);
 
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xtBool                  xt_fs_rmdir(struct XTThread *self, char *path);
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xtBool                  xt_fs_stat(struct XTThread *self, char *path, off_t *size, struct timespec *mod_time);
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void                    xt_fs_move(struct XTThread *self, char *from_path, char *to_path);
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xtBool                  xt_fs_rename(struct XTThread *self, char *from_path, char *to_path);
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typedef xtBool (*XTFlushCacheFunc)(struct XTOpenFile *of);
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typedef struct XTFile {
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        u_int                           fil_ref_count;          /* The number of open file structure referencing this file. */
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        char                            *fil_path;
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#ifndef XT_WIN                                                          /* Windows does not have pread/pwrite functions! */
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        int                                     fil_filedes;            /* The shared file descriptor (pread and pwrite allow this) */
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#endif
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        int                                     fil_mode;
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} XTFileRec, *XTFilePtr;
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typedef struct XTOpenFile {
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#else
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        int                                     of_filedes;
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#endif
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        XTFlushCacheFunc        of_flush;
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} XTOpenFileRec, *XTOpenFilePtr;
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void                    xt_fs_init(struct XTThread *self);
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void                    xt_fs_exit(struct XTThread *self);
 
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XTFilePtr               xt_fs_get_file(struct XTThread *self, char *file_name);
 
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void                    xt_fs_release_file(struct XTThread *self, XTFilePtr file_ptr);
 
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XTOpenFilePtr   xt_open_file(struct XTThread *self, char *file, int mode);
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XTOpenFilePtr   xt_open_file_ns(char *file, int mode);
 
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xtBool                  xt_open_file_ns(XTOpenFilePtr *fh, char *file, int mode);
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void                    xt_close_file(struct XTThread *self, XTOpenFilePtr f);
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xtBool                  xt_close_file_ns(XTOpenFilePtr f);
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char                    *xt_file_path(XTOpenFilePtr of);