AS OF SVN REV. 5901, WE ARE NOW USING TRUNK. ALL UNTESTED BUGFIXES/FEATURES GO INTO TRUNK.

IF YOU HAVE A WORKING AND TESTED BUGFIX PUT IT INTO STABLE AS WELL AS TRUNK.  EVERYTHING ELSE
GOES INTO TRUNK AND WILL BE MERGED INTO STABLE BY VALARIS AND WIZPUTER. -- VALARIS


git-svn-id: https://rathena.svn.sourceforge.net/svnroot/rathena/trunk@5094 54d463be-8e91-2dee-dedb-b68131a5f0ec

1 files changed, 159 insertions, 0 deletions

diff --git a/src/mysql/raid.h b/src/mysql/raid.h
new file mode 100644
index 000000000..519ba9e4d
--- /dev/null
+++ b/src/mysql/raid.h
@@ -0,0 +1,159 @@
+/* Copyright (C) 2000 MySQL AB

+

+   This program is free software; you can redistribute it and/or modify

+   it under the terms of the GNU General Public License as published by

+   the Free Software Foundation; either version 2 of the License, or

+   (at your option) any later version.

+

+   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 General Public License for more details.

+

+   You should have received a copy of the GNU General Public License

+   along with this program; if not, write to the Free Software

+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

+

+/* Parser needs these defines  always, even if USE_RAID is not defined */

+#define RAID_TYPE_0 1       /* Striping */

+#define RAID_TYPE_x 2       /* Some new modes */

+#define RAID_TYPE_y 3

+

+#define RAID_DEFAULT_CHUNKS 4

+#define RAID_DEFAULT_CHUNKSIZE 256*1024 /* 256kB */

+

+C_MODE_START

+#define my_raid_type(raid_type)  raid_type_string[(int)(raid_type)]

+extern const char *raid_type_string[];

+C_MODE_END

+

+#ifdef DONT_USE_RAID

+#undef USE_RAID

+#endif

+#if defined(USE_RAID)

+

+#include "my_dir.h"

+

+/* Trap all occurences of my_...() in source and use our wrapper around this function */

+

+#ifdef MAP_TO_USE_RAID

+#define my_read(A,B,C,D)     my_raid_read(A,B,C,D)

+#define my_write(A,B,C,D)    my_raid_write(A,B,C,D)

+#define my_pwrite(A,B,C,D,E) my_raid_pwrite(A,B,C,D,E)

+#define my_pread(A,B,C,D,E)  my_raid_pread(A,B,C,D,E)

+#define my_chsize(A,B,C,D)   my_raid_chsize(A,B,C,D)

+#define my_close(A,B)        my_raid_close(A,B)

+#define my_tell(A,B)         my_raid_tell(A,B)

+#define my_seek(A,B,C,D)     my_raid_seek(A,B,C,D)

+#define my_lock(A,B,C,D,E)     my_raid_lock(A,B,C,D,E)

+#define my_fstat(A,B,C)     my_raid_fstat(A,B,C)

+#endif /* MAP_TO_USE_RAID */

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+

+  void init_raid(void);

+  void end_raid(void);

+

+  bool is_raid(File fd);

+  File my_raid_create(const char *FileName, int CreateFlags, int access_flags,

+		      uint raid_type, uint raid_chunks, ulong raid_chunksize,

+		      myf MyFlags);

+  File my_raid_open(const char *FileName, int Flags,

+		    uint raid_type, uint raid_chunks, ulong raid_chunksize,

+		    myf MyFlags);

+  int my_raid_rename(const char *from, const char *to, uint raid_chunks,

+		     myf MyFlags);

+  int my_raid_delete(const char *from, uint raid_chunks, myf MyFlags);

+  int my_raid_redel(const char *old_name, const char *new_name,

+		    uint raid_chunks, myf MyFlags);

+

+  my_off_t my_raid_seek(File fd, my_off_t pos, int whence, myf MyFlags);

+  my_off_t my_raid_tell(File fd, myf MyFlags);

+

+  uint my_raid_write(File,const byte *Buffer, uint Count, myf MyFlags);

+  uint my_raid_read(File Filedes, byte *Buffer, uint Count, myf MyFlags);

+

+  uint my_raid_pread(File Filedes, byte *Buffer, uint Count, my_off_t offset,

+		     myf MyFlags);

+  uint my_raid_pwrite(int Filedes, const byte *Buffer, uint Count,

+		      my_off_t offset, myf MyFlags);

+

+  int my_raid_lock(File,int locktype, my_off_t start, my_off_t length,

+		   myf MyFlags);

+  int my_raid_chsize(File fd, my_off_t newlength, int filler, myf MyFlags);

+  int my_raid_close(File, myf MyFlags);

+  int my_raid_fstat(int Filedes, struct stat *buf,  myf MyFlags);

+

+#ifdef __cplusplus

+}

+

+#ifdef USE_PRAGMA_INTERFACE

+#pragma interface			/* gcc class implementation */

+#endif

+

+class RaidName {

+  public:

+    RaidName(const char *FileName);

+    ~RaidName();

+    bool IsRaid();

+    int Rename(const char * from, const char * to, myf MyFlags);

+  private:

+    uint _raid_type;       /* RAID_TYPE_0 or RAID_TYPE_1 or RAID_TYPE_5 */

+    uint _raid_chunks;     /* 1..n */

+    ulong _raid_chunksize; /* 1..n in bytes */

+};

+

+class RaidFd {

+  public:

+    RaidFd(uint raid_type, uint raid_chunks , ulong raid_chunksize);

+    ~RaidFd();

+    File Create(const char *FileName, int CreateFlags, int access_flags,

+		myf MyFlags);

+    File Open(const char *FileName, int Flags, myf MyFlags);

+    my_off_t Seek(my_off_t pos,int whence,myf MyFlags);

+    my_off_t Tell(myf MyFlags);

+    int Write(const byte *Buffer, uint Count, myf MyFlags);

+    int Read(const byte *Buffer, uint Count, myf MyFlags);

+    int Lock(int locktype, my_off_t start, my_off_t length, myf MyFlags);

+    int Chsize(File fd, my_off_t newlength, int filler, myf MyFlags);

+    int Fstat(int fd, MY_STAT *stat_area, myf MyFlags );

+    int Close(myf MyFlags);

+    static bool IsRaid(File fd);

+    static DYNAMIC_ARRAY _raid_map;		/* Map of RaidFD* */

+  private:

+

+    uint _raid_type;       /* RAID_TYPE_0 or RAID_TYPE_1 or RAID_TYPE_5 */

+    uint _raid_chunks;     /* 1..n */

+    ulong _raid_chunksize; /* 1..n in bytes */

+

+    ulong _total_block;    /* We are operating with block no x (can be 0..many). */

+    uint _this_block;      /* can be 0.._raid_chunks */

+    uint _remaining_bytes; /* Maximum bytes that can be written in this block */

+

+    my_off_t _position;

+    my_off_t _size;        /* Cached file size for faster seek(SEEK_END) */

+    File _fd;

+    File *_fd_vector;		/* Array of File */

+    off_t *_seek_vector;	/* Array of cached seek positions */

+

+    inline void Calculate()

+    {

+      DBUG_ENTER("RaidFd::_Calculate");

+      DBUG_PRINT("info",("_position: %lu _raid_chunksize: %d, _size: %lu",

+			 (ulong) _position, _raid_chunksize, (ulong) _size));

+

+      _total_block = (ulong) (_position / _raid_chunksize);

+      _this_block = _total_block % _raid_chunks;    /* can be 0.._raid_chunks */

+      _remaining_bytes = (uint) (_raid_chunksize -

+				 (_position - _total_block * _raid_chunksize));

+      DBUG_PRINT("info",

+		 ("_total_block: %d  this_block: %d  _remaining_bytes:%d",

+		  _total_block, _this_block, _remaining_bytes));

+      DBUG_VOID_RETURN;

+    }

+};

+

+#endif /* __cplusplus */

+#endif /* USE_RAID */