1008 lines
40 KiB
C
1008 lines
40 KiB
C
/* Copyright (C) 2000-2003 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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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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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifndef _my_sys_h
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#define _my_sys_h
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C_MODE_START
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#ifdef HAVE_AIOWAIT
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#include <sys/asynch.h> /* Used by record-cache */
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typedef struct my_aio_result {
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aio_result_t result;
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int pending;
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} my_aio_result;
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#endif
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#ifdef HAVE_VALGRIND
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# include <valgrind/memcheck.h>
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# define MEM_UNDEFINED(a,len) VALGRIND_MAKE_MEM_UNDEFINED(a,len)
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# define MEM_NOACCESS(a,len) VALGRIND_MAKE_MEM_NOACCESS(a,len)
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# define MEM_CHECK_ADDRESSABLE(a,len) VALGRIND_CHECK_MEM_IS_ADDRESSABLE(a,len)
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# define MEM_CHECK_DEFINED(a,len) VALGRIND_CHECK_MEM_IS_DEFINED(a,len)
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#else /* HAVE_VALGRIND */
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# define MEM_UNDEFINED(a,len) ((void) 0)
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# define MEM_NOACCESS(a,len) ((void) 0)
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# define MEM_CHECK_ADDRESSABLE(a,len) ((void) 0)
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# define MEM_CHECK_DEFINED(a,len) ((void) 0)
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#endif /* HAVE_VALGRIND */
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#ifndef THREAD
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extern int NEAR my_errno; /* Last error in mysys */
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#else
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#include <my_pthread.h>
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#endif
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#include <m_ctype.h> /* for CHARSET_INFO */
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#include <stdarg.h>
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#include <typelib.h>
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#define MYSYS_PROGRAM_USES_CURSES() { error_handler_hook = my_message_curses; mysys_uses_curses=1; }
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#define MYSYS_PROGRAM_DONT_USE_CURSES() { error_handler_hook = my_message_no_curses; mysys_uses_curses=0;}
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#define MY_INIT(name) { my_progname= name; my_init(); }
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#define MY_FILE_ERROR ((size_t) -1)
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/* General bitmaps for my_func's */
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#define MY_FFNF 1 /* Fatal if file not found */
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#define MY_FNABP 2 /* Fatal if not all bytes read/writen */
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#define MY_NABP 4 /* Error if not all bytes read/writen */
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#define MY_FAE 8 /* Fatal if any error */
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#define MY_WME 16 /* Write message on error */
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#define MY_WAIT_IF_FULL 32 /* Wait and try again if disk full error */
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#define MY_IGNORE_BADFD 32 /* my_sync: ignore 'bad descriptor' errors */
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#define MY_SYNC_DIR 1024 /* my_create/delete/rename: sync directory */
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#define MY_RAID 64 /* Support for RAID */
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#define MY_FULL_IO 512 /* For my_read - loop intil I/O is complete */
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#define MY_DONT_CHECK_FILESIZE 128 /* Option to init_io_cache() */
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#define MY_LINK_WARNING 32 /* my_redel() gives warning if links */
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#define MY_COPYTIME 64 /* my_redel() copys time */
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#define MY_DELETE_OLD 256 /* my_create_with_symlink() */
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#define MY_RESOLVE_LINK 128 /* my_realpath(); Only resolve links */
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#define MY_HOLD_ORIGINAL_MODES 128 /* my_copy() holds to file modes */
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#define MY_REDEL_MAKE_BACKUP 256
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#define MY_SEEK_NOT_DONE 32 /* my_lock may have to do a seek */
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#define MY_DONT_WAIT 64 /* my_lock() don't wait if can't lock */
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#define MY_ZEROFILL 32 /* my_malloc(), fill array with zero */
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#define MY_ALLOW_ZERO_PTR 64 /* my_realloc() ; zero ptr -> malloc */
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#define MY_FREE_ON_ERROR 128 /* my_realloc() ; Free old ptr on error */
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#define MY_HOLD_ON_ERROR 256 /* my_realloc() ; Return old ptr on error */
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#define MY_DONT_OVERWRITE_FILE 1024 /* my_copy: Don't overwrite file */
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#define MY_THREADSAFE 2048 /* my_seek(): lock fd mutex */
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#define MY_SYNC 4096 /* my_copy(): sync dst file */
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#define MY_CHECK_ERROR 1 /* Params to my_end; Check open-close */
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#define MY_GIVE_INFO 2 /* Give time info about process*/
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#define MY_DONT_FREE_DBUG 4 /* Do not call DBUG_END() in my_end() */
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#define MY_REMOVE_NONE 0 /* Params for modify_defaults_file */
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#define MY_REMOVE_OPTION 1
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#define MY_REMOVE_SECTION 2
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#define ME_HIGHBYTE 8 /* Shift for colours */
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#define ME_NOCUR 1 /* Don't use curses message */
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#define ME_OLDWIN 2 /* Use old window */
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#define ME_BELL 4 /* Ring bell then printing message */
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#define ME_HOLDTANG 8 /* Don't delete last keys */
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#define ME_WAITTOT 16 /* Wait for errtime secs of for a action */
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#define ME_WAITTANG 32 /* Wait for a user action */
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#define ME_NOREFRESH 64 /* Dont refresh screen */
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#define ME_NOINPUT 128 /* Dont use the input libary */
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#define ME_COLOUR1 ((1 << ME_HIGHBYTE)) /* Possibly error-colours */
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#define ME_COLOUR2 ((2 << ME_HIGHBYTE))
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#define ME_COLOUR3 ((3 << ME_HIGHBYTE))
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#define ME_FATALERROR 1024 /* Fatal statement error */
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#define ME_NO_WARNING_FOR_ERROR 2048 /* Don't push a warning for error */
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#define ME_NO_SP_HANDLER 4096 /* Don't call stored routine error handlers */
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/* Bits in last argument to fn_format */
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#define MY_REPLACE_DIR 1 /* replace dir in name with 'dir' */
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#define MY_REPLACE_EXT 2 /* replace extension with 'ext' */
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#define MY_UNPACK_FILENAME 4 /* Unpack name (~ -> home) */
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#define MY_PACK_FILENAME 8 /* Pack name (home -> ~) */
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#define MY_RESOLVE_SYMLINKS 16 /* Resolve all symbolic links */
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#define MY_RETURN_REAL_PATH 32 /* return full path for file */
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#define MY_SAFE_PATH 64 /* Return NULL if too long path */
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#define MY_RELATIVE_PATH 128 /* name is relative to 'dir' */
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#define MY_APPEND_EXT 256 /* add 'ext' as additional extension*/
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/* My seek flags */
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#define MY_SEEK_SET 0
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#define MY_SEEK_CUR 1
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#define MY_SEEK_END 2
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/* Some constants */
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#define MY_WAIT_FOR_USER_TO_FIX_PANIC 60 /* in seconds */
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#define MY_WAIT_GIVE_USER_A_MESSAGE 10 /* Every 10 times of prev */
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#define MIN_COMPRESS_LENGTH 50 /* Don't compress small bl. */
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#define DFLT_INIT_HITS 3
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/* root_alloc flags */
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#define MY_KEEP_PREALLOC 1
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#define MY_MARK_BLOCKS_FREE 2 /* move used to free list and reuse them */
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/* Internal error numbers (for assembler functions) */
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#define MY_ERRNO_EDOM 33
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#define MY_ERRNO_ERANGE 34
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/* Bits for get_date timeflag */
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#define GETDATE_DATE_TIME 1
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#define GETDATE_SHORT_DATE 2
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#define GETDATE_HHMMSSTIME 4
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#define GETDATE_GMT 8
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#define GETDATE_FIXEDLENGTH 16
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/* defines when allocating data */
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#ifdef SAFEMALLOC
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#define my_malloc(SZ,FLAG) _mymalloc((SZ), __FILE__, __LINE__, FLAG )
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#define my_malloc_ci(SZ,FLAG) _mymalloc((SZ), sFile, uLine, FLAG )
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#define my_realloc(PTR,SZ,FLAG) _myrealloc((PTR), (SZ), __FILE__, __LINE__, FLAG )
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#define my_checkmalloc() _sanity( __FILE__, __LINE__ )
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#define my_free(PTR,FLAG) _myfree((PTR), __FILE__, __LINE__,FLAG)
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#define my_memdup(A,B,C) _my_memdup((A),(B), __FILE__,__LINE__,C)
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#define my_strdup(A,C) _my_strdup((A), __FILE__,__LINE__,C)
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#define my_strndup(A,B,C) _my_strndup((A),(B),__FILE__,__LINE__,C)
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#define TRASH(A,B) do { bfill(A, B, 0x8F); MEM_UNDEFINED(A, B); } while (0)
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#define QUICK_SAFEMALLOC sf_malloc_quick=1
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#define NORMAL_SAFEMALLOC sf_malloc_quick=0
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extern uint sf_malloc_prehunc,sf_malloc_endhunc,sf_malloc_quick;
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extern ulonglong sf_malloc_mem_limit;
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#define CALLER_INFO_PROTO , const char *sFile, uint uLine
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#define CALLER_INFO , __FILE__, __LINE__
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#define ORIG_CALLER_INFO , sFile, uLine
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#else
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#define my_checkmalloc()
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#undef TERMINATE
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#define TERMINATE(A,B) {}
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#define QUICK_SAFEMALLOC
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#define NORMAL_SAFEMALLOC
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extern void *my_malloc(size_t Size,myf MyFlags);
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#define my_malloc_ci(SZ,FLAG) my_malloc( SZ, FLAG )
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extern void *my_realloc(void *oldpoint, size_t Size, myf MyFlags);
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extern void my_no_flags_free(void *ptr);
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extern void *my_memdup(const void *from,size_t length,myf MyFlags);
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extern char *my_strdup(const char *from,myf MyFlags);
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extern char *my_strndup(const char *from, size_t length,
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myf MyFlags);
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/* we do use FG (as a no-op) in below so that a typo on FG is caught */
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#define my_free(PTR,FG) ((void)FG,my_no_flags_free(PTR))
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#define CALLER_INFO_PROTO /* nothing */
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#define CALLER_INFO /* nothing */
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#define ORIG_CALLER_INFO /* nothing */
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#define TRASH(A,B) do{MEM_CHECK_ADDRESSABLE(A,B);MEM_UNDEFINED(A,B);} while (0)
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#endif
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#if defined(ENABLED_DEBUG_SYNC)
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extern void (*debug_sync_C_callback_ptr)(const char *, size_t);
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#define DEBUG_SYNC_C(_sync_point_name_) do { \
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if (debug_sync_C_callback_ptr != NULL) \
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(*debug_sync_C_callback_ptr)(STRING_WITH_LEN(_sync_point_name_)); } \
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while(0)
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#else
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#define DEBUG_SYNC_C(_sync_point_name_)
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#endif /* defined(ENABLED_DEBUG_SYNC) */
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#ifdef HAVE_LARGE_PAGES
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extern uint my_get_large_page_size(void);
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extern uchar * my_large_malloc(size_t size, myf my_flags);
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extern void my_large_free(uchar * ptr, myf my_flags);
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#else
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#define my_get_large_page_size() (0)
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#define my_large_malloc(A,B) my_malloc_lock((A),(B))
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#define my_large_free(A,B) my_free_lock((A),(B))
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#endif /* HAVE_LARGE_PAGES */
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#ifdef HAVE_ALLOCA
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#if defined(_AIX) && !defined(__GNUC__) && !defined(_AIX43)
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#pragma alloca
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#endif /* _AIX */
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#if defined(__MWERKS__)
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#undef alloca
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#define alloca _alloca
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#endif /* __MWERKS__ */
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#if defined(__GNUC__) && !defined(HAVE_ALLOCA_H) && ! defined(alloca)
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#define alloca __builtin_alloca
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#endif /* GNUC */
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#define my_alloca(SZ) alloca((size_t) (SZ))
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#define my_afree(PTR) {}
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#else
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#define my_alloca(SZ) my_malloc(SZ,MYF(0))
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#define my_afree(PTR) my_free(PTR,MYF(MY_WME))
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#endif /* HAVE_ALLOCA */
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#ifndef errno /* did we already get it? */
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#ifdef HAVE_ERRNO_AS_DEFINE
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#include <errno.h> /* errno is a define */
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#else
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extern int errno; /* declare errno */
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#endif
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#endif /* #ifndef errno */
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extern char *home_dir; /* Home directory for user */
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extern const char *my_progname; /* program-name (printed in errors) */
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extern char NEAR curr_dir[]; /* Current directory for user */
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extern int (*error_handler_hook)(uint my_err, const char *str,myf MyFlags);
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extern int (*fatal_error_handler_hook)(uint my_err, const char *str,
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myf MyFlags);
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extern uint my_file_limit;
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extern ulong my_thread_stack_size;
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#ifdef HAVE_LARGE_PAGES
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extern my_bool my_use_large_pages;
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extern uint my_large_page_size;
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#endif
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/* charsets */
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extern MYSQL_PLUGIN_IMPORT CHARSET_INFO *default_charset_info;
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extern MYSQL_PLUGIN_IMPORT CHARSET_INFO *all_charsets[256];
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extern CHARSET_INFO compiled_charsets[];
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/* statistics */
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extern ulong my_file_opened,my_stream_opened, my_tmp_file_created;
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extern ulong my_file_total_opened;
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extern uint mysys_usage_id;
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extern my_bool my_init_done;
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/* Point to current my_message() */
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extern void (*my_sigtstp_cleanup)(void),
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/* Executed before jump to shell */
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(*my_sigtstp_restart)(void),
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(*my_abort_hook)(int);
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/* Executed when comming from shell */
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extern MYSQL_PLUGIN_IMPORT int NEAR my_umask; /* Default creation mask */
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extern int NEAR my_umask_dir,
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NEAR my_recived_signals, /* Signals we have got */
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NEAR my_safe_to_handle_signal, /* Set when allowed to SIGTSTP */
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NEAR my_dont_interrupt; /* call remember_intr when set */
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extern my_bool NEAR mysys_uses_curses, my_use_symdir;
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extern size_t sf_malloc_cur_memory, sf_malloc_max_memory;
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extern ulong my_default_record_cache_size;
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extern my_bool NEAR my_disable_locking,NEAR my_disable_async_io,
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NEAR my_disable_flush_key_blocks, NEAR my_disable_symlinks;
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extern char wild_many,wild_one,wild_prefix;
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extern const char *charsets_dir;
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/* from default.c */
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extern char *my_defaults_extra_file;
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extern const char *my_defaults_group_suffix;
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extern const char *my_defaults_file;
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extern my_bool timed_mutexes;
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typedef struct wild_file_pack /* Struct to hold info when selecting files */
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{
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uint wilds; /* How many wildcards */
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uint not_pos; /* Start of not-theese-files */
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char * *wild; /* Pointer to wildcards */
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} WF_PACK;
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enum loglevel {
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ERROR_LEVEL,
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WARNING_LEVEL,
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INFORMATION_LEVEL
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};
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enum cache_type
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{
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TYPE_NOT_SET= 0, READ_CACHE, WRITE_CACHE,
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SEQ_READ_APPEND /* sequential read or append */,
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READ_FIFO, READ_NET,WRITE_NET};
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enum flush_type
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{
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FLUSH_KEEP, /* flush block and keep it in the cache */
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FLUSH_RELEASE, /* flush block and remove it from the cache */
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FLUSH_IGNORE_CHANGED, /* remove block from the cache */
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/*
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As my_disable_flush_pagecache_blocks is always 0, the following option
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is strictly equivalent to FLUSH_KEEP
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*/
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FLUSH_FORCE_WRITE
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};
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typedef struct st_record_cache /* Used when cacheing records */
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{
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File file;
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int rc_seek,error,inited;
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uint rc_length,read_length,reclength;
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my_off_t rc_record_pos,end_of_file;
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uchar *rc_buff,*rc_buff2,*rc_pos,*rc_end,*rc_request_pos;
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#ifdef HAVE_AIOWAIT
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int use_async_io;
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my_aio_result aio_result;
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#endif
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enum cache_type type;
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} RECORD_CACHE;
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enum file_type
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{
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UNOPEN = 0, FILE_BY_OPEN, FILE_BY_CREATE, STREAM_BY_FOPEN, STREAM_BY_FDOPEN,
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FILE_BY_MKSTEMP, FILE_BY_DUP
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};
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struct st_my_file_info
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{
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char * name;
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enum file_type type;
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#if defined(THREAD) && !defined(HAVE_PREAD)
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pthread_mutex_t mutex;
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#endif
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};
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extern struct st_my_file_info *my_file_info;
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typedef struct st_dynamic_array
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{
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uchar *buffer;
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uint elements,max_element;
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uint alloc_increment;
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uint size_of_element;
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} DYNAMIC_ARRAY;
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typedef struct st_my_tmpdir
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{
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DYNAMIC_ARRAY full_list;
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char **list;
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uint cur, max;
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#ifdef THREAD
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pthread_mutex_t mutex;
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#endif
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} MY_TMPDIR;
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typedef struct st_dynamic_string
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{
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char *str;
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size_t length,max_length,alloc_increment;
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} DYNAMIC_STRING;
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struct st_io_cache;
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typedef int (*IO_CACHE_CALLBACK)(struct st_io_cache*);
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#ifdef THREAD
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typedef struct st_io_cache_share
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{
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pthread_mutex_t mutex; /* To sync on reads into buffer. */
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pthread_cond_t cond; /* To wait for signals. */
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pthread_cond_t cond_writer; /* For a synchronized writer. */
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/* Offset in file corresponding to the first byte of buffer. */
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my_off_t pos_in_file;
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/* If a synchronized write cache is the source of the data. */
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struct st_io_cache *source_cache;
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uchar *buffer; /* The read buffer. */
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uchar *read_end; /* Behind last valid byte of buffer. */
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int running_threads; /* threads not in lock. */
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int total_threads; /* threads sharing the cache. */
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int error; /* Last error. */
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#ifdef NOT_YET_IMPLEMENTED
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/* whether the structure should be free'd */
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my_bool alloced;
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#endif
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} IO_CACHE_SHARE;
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#endif
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typedef struct st_io_cache /* Used when cacheing files */
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{
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/* Offset in file corresponding to the first byte of uchar* buffer. */
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my_off_t pos_in_file;
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/*
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The offset of end of file for READ_CACHE and WRITE_CACHE.
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For SEQ_READ_APPEND it the maximum of the actual end of file and
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the position represented by read_end.
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*/
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my_off_t end_of_file;
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/* Points to current read position in the buffer */
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uchar *read_pos;
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/* the non-inclusive boundary in the buffer for the currently valid read */
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uchar *read_end;
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uchar *buffer; /* The read buffer */
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/* Used in ASYNC_IO */
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uchar *request_pos;
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/* Only used in WRITE caches and in SEQ_READ_APPEND to buffer writes */
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uchar *write_buffer;
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/*
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Only used in SEQ_READ_APPEND, and points to the current read position
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in the write buffer. Note that reads in SEQ_READ_APPEND caches can
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happen from both read buffer (uchar* buffer) and write buffer
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(uchar* write_buffer).
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*/
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uchar *append_read_pos;
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/* Points to current write position in the write buffer */
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uchar *write_pos;
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/* The non-inclusive boundary of the valid write area */
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uchar *write_end;
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/*
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Current_pos and current_end are convenience variables used by
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my_b_tell() and other routines that need to know the current offset
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current_pos points to &write_pos, and current_end to &write_end in a
|
|
WRITE_CACHE, and &read_pos and &read_end respectively otherwise
|
|
*/
|
|
uchar **current_pos, **current_end;
|
|
#ifdef THREAD
|
|
/*
|
|
The lock is for append buffer used in SEQ_READ_APPEND cache
|
|
need mutex copying from append buffer to read buffer.
|
|
*/
|
|
pthread_mutex_t append_buffer_lock;
|
|
/*
|
|
The following is used when several threads are reading the
|
|
same file in parallel. They are synchronized on disk
|
|
accesses reading the cached part of the file asynchronously.
|
|
It should be set to NULL to disable the feature. Only
|
|
READ_CACHE mode is supported.
|
|
*/
|
|
IO_CACHE_SHARE *share;
|
|
#endif
|
|
/*
|
|
A caller will use my_b_read() macro to read from the cache
|
|
if the data is already in cache, it will be simply copied with
|
|
memcpy() and internal variables will be accordinging updated with
|
|
no functions invoked. However, if the data is not fully in the cache,
|
|
my_b_read() will call read_function to fetch the data. read_function
|
|
must never be invoked directly.
|
|
*/
|
|
int (*read_function)(struct st_io_cache *,uchar *,size_t);
|
|
/*
|
|
Same idea as in the case of read_function, except my_b_write() needs to
|
|
be replaced with my_b_append() for a SEQ_READ_APPEND cache
|
|
*/
|
|
int (*write_function)(struct st_io_cache *,const uchar *,size_t);
|
|
/*
|
|
Specifies the type of the cache. Depending on the type of the cache
|
|
certain operations might not be available and yield unpredicatable
|
|
results. Details to be documented later
|
|
*/
|
|
enum cache_type type;
|
|
/*
|
|
Callbacks when the actual read I/O happens. These were added and
|
|
are currently used for binary logging of LOAD DATA INFILE - when a
|
|
block is read from the file, we create a block create/append event, and
|
|
when IO_CACHE is closed, we create an end event. These functions could,
|
|
of course be used for other things
|
|
*/
|
|
IO_CACHE_CALLBACK pre_read;
|
|
IO_CACHE_CALLBACK post_read;
|
|
IO_CACHE_CALLBACK pre_close;
|
|
/*
|
|
Counts the number of times, when we were forced to use disk. We use it to
|
|
increase the binlog_cache_disk_use status variable.
|
|
*/
|
|
ulong disk_writes;
|
|
void* arg; /* for use by pre/post_read */
|
|
char *file_name; /* if used with 'open_cached_file' */
|
|
char *dir,*prefix;
|
|
File file; /* file descriptor */
|
|
/*
|
|
seek_not_done is set by my_b_seek() to inform the upcoming read/write
|
|
operation that a seek needs to be preformed prior to the actual I/O
|
|
error is 0 if the cache operation was successful, -1 if there was a
|
|
"hard" error, and the actual number of I/O-ed bytes if the read/write was
|
|
partial.
|
|
*/
|
|
int seek_not_done,error;
|
|
/* buffer_length is memory size allocated for buffer or write_buffer */
|
|
size_t buffer_length;
|
|
/* read_length is the same as buffer_length except when we use async io */
|
|
size_t read_length;
|
|
myf myflags; /* Flags used to my_read/my_write */
|
|
/*
|
|
alloced_buffer is 1 if the buffer was allocated by init_io_cache() and
|
|
0 if it was supplied by the user.
|
|
Currently READ_NET is the only one that will use a buffer allocated
|
|
somewhere else
|
|
*/
|
|
my_bool alloced_buffer;
|
|
#ifdef HAVE_AIOWAIT
|
|
/*
|
|
As inidicated by ifdef, this is for async I/O, which is not currently
|
|
used (because it's not reliable on all systems)
|
|
*/
|
|
uint inited;
|
|
my_off_t aio_read_pos;
|
|
my_aio_result aio_result;
|
|
#endif
|
|
} IO_CACHE;
|
|
|
|
typedef int (*qsort2_cmp)(const void *, const void *, const void *);
|
|
|
|
/* defines for mf_iocache */
|
|
|
|
/* Test if buffer is inited */
|
|
#define my_b_clear(info) (info)->buffer=0
|
|
#define my_b_inited(info) (info)->buffer
|
|
#define my_b_EOF INT_MIN
|
|
|
|
#define my_b_read(info,Buffer,Count) \
|
|
((info)->read_pos + (Count) <= (info)->read_end ?\
|
|
(memcpy(Buffer,(info)->read_pos,(size_t) (Count)), \
|
|
((info)->read_pos+=(Count)),0) :\
|
|
(*(info)->read_function)((info),Buffer,Count))
|
|
|
|
#define my_b_write(info,Buffer,Count) \
|
|
((info)->write_pos + (Count) <=(info)->write_end ?\
|
|
(memcpy((info)->write_pos, (Buffer), (size_t)(Count)),\
|
|
((info)->write_pos+=(Count)),0) : \
|
|
(*(info)->write_function)((info),(uchar *)(Buffer),(Count)))
|
|
|
|
#define my_b_get(info) \
|
|
((info)->read_pos != (info)->read_end ?\
|
|
((info)->read_pos++, (int) (uchar) (info)->read_pos[-1]) :\
|
|
_my_b_get(info))
|
|
|
|
/* my_b_write_byte dosn't have any err-check */
|
|
#define my_b_write_byte(info,chr) \
|
|
(((info)->write_pos < (info)->write_end) ?\
|
|
((*(info)->write_pos++)=(chr)) :\
|
|
(_my_b_write(info,0,0) , ((*(info)->write_pos++)=(chr))))
|
|
|
|
#define my_b_fill_cache(info) \
|
|
(((info)->read_end=(info)->read_pos),(*(info)->read_function)(info,0,0))
|
|
|
|
#define my_b_tell(info) ((info)->pos_in_file + \
|
|
(size_t) (*(info)->current_pos - (info)->request_pos))
|
|
|
|
#define my_b_get_buffer_start(info) (info)->request_pos
|
|
#define my_b_get_bytes_in_buffer(info) (char*) (info)->read_end - \
|
|
(char*) my_b_get_buffer_start(info)
|
|
#define my_b_get_pos_in_file(info) (info)->pos_in_file
|
|
|
|
/* tell write offset in the SEQ_APPEND cache */
|
|
int my_b_copy_to_file(IO_CACHE *cache, FILE *file);
|
|
my_off_t my_b_append_tell(IO_CACHE* info);
|
|
my_off_t my_b_safe_tell(IO_CACHE* info); /* picks the correct tell() */
|
|
|
|
#define my_b_bytes_in_cache(info) (size_t) (*(info)->current_end - \
|
|
*(info)->current_pos)
|
|
|
|
typedef uint32 ha_checksum;
|
|
|
|
/* Define the type of function to be passed to process_default_option_files */
|
|
typedef int (*Process_option_func)(void *ctx, const char *group_name,
|
|
const char *option);
|
|
|
|
#include <my_alloc.h>
|
|
|
|
|
|
/* Prototypes for mysys and my_func functions */
|
|
|
|
extern int my_copy(const char *from,const char *to,myf MyFlags);
|
|
extern int my_append(const char *from,const char *to,myf MyFlags);
|
|
extern int my_delete(const char *name,myf MyFlags);
|
|
extern int my_getwd(char * buf,size_t size,myf MyFlags);
|
|
extern int my_setwd(const char *dir,myf MyFlags);
|
|
extern int my_lock(File fd,int op,my_off_t start, my_off_t length,myf MyFlags);
|
|
extern void *my_once_alloc(size_t Size,myf MyFlags);
|
|
extern void my_once_free(void);
|
|
extern char *my_once_strdup(const char *src,myf myflags);
|
|
extern void *my_once_memdup(const void *src, size_t len, myf myflags);
|
|
extern File my_open(const char *FileName,int Flags,myf MyFlags);
|
|
extern File my_register_filename(File fd, const char *FileName,
|
|
enum file_type type_of_file,
|
|
uint error_message_number, myf MyFlags);
|
|
extern File my_create(const char *FileName,int CreateFlags,
|
|
int AccessFlags, myf MyFlags);
|
|
extern int my_close(File Filedes,myf MyFlags);
|
|
extern File my_dup(File file, myf MyFlags);
|
|
extern int my_mkdir(const char *dir, int Flags, myf MyFlags);
|
|
extern int my_readlink(char *to, const char *filename, myf MyFlags);
|
|
extern int my_is_symlink(const char *filename);
|
|
extern int my_realpath(char *to, const char *filename, myf MyFlags);
|
|
extern File my_create_with_symlink(const char *linkname, const char *filename,
|
|
int createflags, int access_flags,
|
|
myf MyFlags);
|
|
extern int my_delete_with_symlink(const char *name, myf MyFlags);
|
|
extern int my_rename_with_symlink(const char *from,const char *to,myf MyFlags);
|
|
extern int my_symlink(const char *content, const char *linkname, myf MyFlags);
|
|
extern size_t my_read(File Filedes,uchar *Buffer,size_t Count,myf MyFlags);
|
|
extern size_t my_pread(File Filedes,uchar *Buffer,size_t Count,my_off_t offset,
|
|
myf MyFlags);
|
|
extern int my_rename(const char *from,const char *to,myf MyFlags);
|
|
extern my_off_t my_seek(File fd,my_off_t pos,int whence,myf MyFlags);
|
|
extern my_off_t my_tell(File fd,myf MyFlags);
|
|
extern size_t my_write(File Filedes,const uchar *Buffer,size_t Count,
|
|
myf MyFlags);
|
|
extern size_t my_pwrite(File Filedes,const uchar *Buffer,size_t Count,
|
|
my_off_t offset,myf MyFlags);
|
|
extern size_t my_fread(FILE *stream,uchar *Buffer,size_t Count,myf MyFlags);
|
|
extern size_t my_fwrite(FILE *stream,const uchar *Buffer,size_t Count,
|
|
myf MyFlags);
|
|
extern my_off_t my_fseek(FILE *stream,my_off_t pos,int whence,myf MyFlags);
|
|
extern my_off_t my_ftell(FILE *stream,myf MyFlags);
|
|
extern void *_mymalloc(size_t uSize,const char *sFile,
|
|
uint uLine, myf MyFlag);
|
|
extern void *_myrealloc(void *pPtr,size_t uSize,const char *sFile,
|
|
uint uLine, myf MyFlag);
|
|
extern void * my_multi_malloc _VARARGS((myf MyFlags, ...));
|
|
extern void _myfree(void *pPtr,const char *sFile,uint uLine, myf MyFlag);
|
|
extern int _sanity(const char *sFile, uint uLine);
|
|
extern void *_my_memdup(const void *from, size_t length,
|
|
const char *sFile, uint uLine,myf MyFlag);
|
|
extern char * _my_strdup(const char *from, const char *sFile, uint uLine,
|
|
myf MyFlag);
|
|
extern char *_my_strndup(const char *from, size_t length,
|
|
const char *sFile, uint uLine,
|
|
myf MyFlag);
|
|
|
|
/* implemented in my_memmem.c */
|
|
extern void *my_memmem(const void *haystack, size_t haystacklen,
|
|
const void *needle, size_t needlelen);
|
|
|
|
|
|
#ifdef __WIN__
|
|
extern int my_access(const char *path, int amode);
|
|
extern File my_sopen(const char *path, int oflag, int shflag, int pmode);
|
|
#else
|
|
#define my_access access
|
|
#endif
|
|
extern int check_if_legal_filename(const char *path);
|
|
extern int check_if_legal_tablename(const char *path);
|
|
|
|
#if defined(__WIN__) && defined(__NT__)
|
|
extern int nt_share_delete(const char *name,myf MyFlags);
|
|
#define my_delete_allow_opened(fname,flags) nt_share_delete((fname),(flags))
|
|
#else
|
|
#define my_delete_allow_opened(fname,flags) my_delete((fname),(flags))
|
|
#endif
|
|
|
|
#ifndef TERMINATE
|
|
extern void TERMINATE(FILE *file, uint flag);
|
|
#endif
|
|
extern void init_glob_errs(void);
|
|
extern void wait_for_free_space(const char *filename, int errors);
|
|
extern FILE *my_fopen(const char *FileName,int Flags,myf MyFlags);
|
|
extern FILE *my_fdopen(File Filedes,const char *name, int Flags,myf MyFlags);
|
|
extern int my_fclose(FILE *fd,myf MyFlags);
|
|
extern int my_chsize(File fd,my_off_t newlength, int filler, myf MyFlags);
|
|
extern int my_sync(File fd, myf my_flags);
|
|
extern int my_sync_dir(const char *dir_name, myf my_flags);
|
|
extern int my_sync_dir_by_file(const char *file_name, myf my_flags);
|
|
extern int my_error _VARARGS((int nr,myf MyFlags, ...));
|
|
extern int my_printf_error _VARARGS((uint my_err, const char *format,
|
|
myf MyFlags, ...))
|
|
ATTRIBUTE_FORMAT(printf, 2, 4);
|
|
extern int my_error_register(const char **errmsgs, int first, int last);
|
|
extern const char **my_error_unregister(int first, int last);
|
|
extern int my_message(uint my_err, const char *str,myf MyFlags);
|
|
extern int my_message_no_curses(uint my_err, const char *str,myf MyFlags);
|
|
extern int my_message_curses(uint my_err, const char *str,myf MyFlags);
|
|
extern my_bool my_init(void);
|
|
extern void my_end(int infoflag);
|
|
extern int my_redel(const char *from, const char *to, int MyFlags);
|
|
extern int my_copystat(const char *from, const char *to, int MyFlags);
|
|
extern char * my_filename(File fd);
|
|
|
|
#ifndef THREAD
|
|
extern void dont_break(void);
|
|
extern void allow_break(void);
|
|
#else
|
|
#define dont_break()
|
|
#define allow_break()
|
|
#endif
|
|
|
|
#ifdef EXTRA_DEBUG
|
|
void my_print_open_files(void);
|
|
#else
|
|
#define my_print_open_files()
|
|
#endif
|
|
|
|
extern my_bool init_tmpdir(MY_TMPDIR *tmpdir, const char *pathlist);
|
|
extern char *my_tmpdir(MY_TMPDIR *tmpdir);
|
|
extern void free_tmpdir(MY_TMPDIR *tmpdir);
|
|
|
|
extern void my_remember_signal(int signal_number,sig_handler (*func)(int));
|
|
extern size_t dirname_part(char * to,const char *name, size_t *to_res_length);
|
|
extern size_t dirname_length(const char *name);
|
|
#define base_name(A) (A+dirname_length(A))
|
|
extern int test_if_hard_path(const char *dir_name);
|
|
extern my_bool has_path(const char *name);
|
|
extern char *convert_dirname(char *to, const char *from, const char *from_end);
|
|
extern void to_unix_path(char * name);
|
|
extern char * fn_ext(const char *name);
|
|
extern char * fn_same(char * toname,const char *name,int flag);
|
|
extern char * fn_format(char * to,const char *name,const char *dir,
|
|
const char *form, uint flag);
|
|
extern size_t strlength(const char *str);
|
|
extern void pack_dirname(char * to,const char *from);
|
|
extern size_t normalize_dirname(char * to, const char *from);
|
|
extern size_t unpack_dirname(char * to,const char *from);
|
|
extern size_t cleanup_dirname(char * to,const char *from);
|
|
extern size_t system_filename(char * to,const char *from);
|
|
extern size_t unpack_filename(char * to,const char *from);
|
|
extern char * intern_filename(char * to,const char *from);
|
|
extern char * directory_file_name(char * dst, const char *src);
|
|
extern int pack_filename(char * to, const char *name, size_t max_length);
|
|
extern char * my_path(char * to,const char *progname,
|
|
const char *own_pathname_part);
|
|
extern char * my_load_path(char * to, const char *path,
|
|
const char *own_path_prefix);
|
|
extern int wild_compare(const char *str,const char *wildstr,
|
|
pbool str_is_pattern);
|
|
extern WF_PACK *wf_comp(char * str);
|
|
extern int wf_test(struct wild_file_pack *wf_pack,const char *name);
|
|
extern void wf_end(struct wild_file_pack *buffer);
|
|
extern my_bool array_append_string_unique(const char *str,
|
|
const char **array, size_t size);
|
|
extern void get_date(char * to,int timeflag,time_t use_time);
|
|
extern void soundex(CHARSET_INFO *, char * out_pntr, char * in_pntr,
|
|
pbool remove_garbage);
|
|
extern int init_record_cache(RECORD_CACHE *info,size_t cachesize,File file,
|
|
size_t reclength,enum cache_type type,
|
|
pbool use_async_io);
|
|
extern int read_cache_record(RECORD_CACHE *info,uchar *to);
|
|
extern int end_record_cache(RECORD_CACHE *info);
|
|
extern int write_cache_record(RECORD_CACHE *info,my_off_t filepos,
|
|
const uchar *record,size_t length);
|
|
extern int flush_write_cache(RECORD_CACHE *info);
|
|
extern long my_clock(void);
|
|
extern sig_handler sigtstp_handler(int signal_number);
|
|
extern void handle_recived_signals(void);
|
|
|
|
extern sig_handler my_set_alarm_variable(int signo);
|
|
extern void my_string_ptr_sort(uchar *base,uint items,size_t size);
|
|
extern void radixsort_for_str_ptr(uchar* base[], uint number_of_elements,
|
|
size_t size_of_element,uchar *buffer[]);
|
|
extern qsort_t my_qsort(void *base_ptr, size_t total_elems, size_t size,
|
|
qsort_cmp cmp);
|
|
extern qsort_t my_qsort2(void *base_ptr, size_t total_elems, size_t size,
|
|
qsort2_cmp cmp, void *cmp_argument);
|
|
extern qsort2_cmp get_ptr_compare(size_t);
|
|
void my_store_ptr(uchar *buff, size_t pack_length, my_off_t pos);
|
|
my_off_t my_get_ptr(uchar *ptr, size_t pack_length);
|
|
extern int init_io_cache(IO_CACHE *info,File file,size_t cachesize,
|
|
enum cache_type type,my_off_t seek_offset,
|
|
pbool use_async_io, myf cache_myflags);
|
|
extern my_bool reinit_io_cache(IO_CACHE *info,enum cache_type type,
|
|
my_off_t seek_offset,pbool use_async_io,
|
|
pbool clear_cache);
|
|
extern void setup_io_cache(IO_CACHE* info);
|
|
extern int _my_b_read(IO_CACHE *info,uchar *Buffer,size_t Count);
|
|
#ifdef THREAD
|
|
extern int _my_b_read_r(IO_CACHE *info,uchar *Buffer,size_t Count);
|
|
extern void init_io_cache_share(IO_CACHE *read_cache, IO_CACHE_SHARE *cshare,
|
|
IO_CACHE *write_cache, uint num_threads);
|
|
extern void remove_io_thread(IO_CACHE *info);
|
|
#endif
|
|
extern int _my_b_seq_read(IO_CACHE *info,uchar *Buffer,size_t Count);
|
|
extern int _my_b_net_read(IO_CACHE *info,uchar *Buffer,size_t Count);
|
|
extern int _my_b_get(IO_CACHE *info);
|
|
extern int _my_b_async_read(IO_CACHE *info,uchar *Buffer,size_t Count);
|
|
extern int _my_b_write(IO_CACHE *info,const uchar *Buffer,size_t Count);
|
|
extern int my_b_append(IO_CACHE *info,const uchar *Buffer,size_t Count);
|
|
extern int my_b_safe_write(IO_CACHE *info,const uchar *Buffer,size_t Count);
|
|
|
|
extern int my_block_write(IO_CACHE *info, const uchar *Buffer,
|
|
size_t Count, my_off_t pos);
|
|
extern int my_b_flush_io_cache(IO_CACHE *info, int need_append_buffer_lock);
|
|
|
|
#define flush_io_cache(info) my_b_flush_io_cache((info),1)
|
|
|
|
extern int end_io_cache(IO_CACHE *info);
|
|
extern size_t my_b_fill(IO_CACHE *info);
|
|
extern void my_b_seek(IO_CACHE *info,my_off_t pos);
|
|
extern size_t my_b_gets(IO_CACHE *info, char *to, size_t max_length);
|
|
extern my_off_t my_b_filelength(IO_CACHE *info);
|
|
extern size_t my_b_printf(IO_CACHE *info, const char* fmt, ...);
|
|
extern size_t my_b_vprintf(IO_CACHE *info, const char* fmt, va_list ap);
|
|
extern my_bool open_cached_file(IO_CACHE *cache,const char *dir,
|
|
const char *prefix, size_t cache_size,
|
|
myf cache_myflags);
|
|
extern my_bool real_open_cached_file(IO_CACHE *cache);
|
|
extern void close_cached_file(IO_CACHE *cache);
|
|
File create_temp_file(char *to, const char *dir, const char *pfx,
|
|
int mode, myf MyFlags);
|
|
#define my_init_dynamic_array(A,B,C,D) init_dynamic_array2(A,B,NULL,C,D CALLER_INFO)
|
|
#define my_init_dynamic_array_ci(A,B,C,D) init_dynamic_array2(A,B,NULL,C,D ORIG_CALLER_INFO)
|
|
#define my_init_dynamic_array2(A,B,C,D,E) init_dynamic_array2(A,B,C,D,E CALLER_INFO)
|
|
#define my_init_dynamic_array2_ci(A,B,C,D,E) init_dynamic_array2(A,B,C,D,E ORIG_CALLER_INFO)
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extern my_bool init_dynamic_array2(DYNAMIC_ARRAY *array,uint element_size,
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void *init_buffer, uint init_alloc,
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uint alloc_increment
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CALLER_INFO_PROTO);
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/* init_dynamic_array() function is deprecated */
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extern my_bool init_dynamic_array(DYNAMIC_ARRAY *array,uint element_size,
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uint init_alloc,uint alloc_increment
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CALLER_INFO_PROTO);
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extern my_bool insert_dynamic(DYNAMIC_ARRAY *array,uchar * element);
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extern uchar *alloc_dynamic(DYNAMIC_ARRAY *array);
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extern uchar *pop_dynamic(DYNAMIC_ARRAY*);
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extern my_bool set_dynamic(DYNAMIC_ARRAY *array,uchar * element,uint array_index);
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extern my_bool allocate_dynamic(DYNAMIC_ARRAY *array, uint max_elements);
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extern void get_dynamic(DYNAMIC_ARRAY *array,uchar * element,uint array_index);
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extern void delete_dynamic(DYNAMIC_ARRAY *array);
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extern void delete_dynamic_element(DYNAMIC_ARRAY *array, uint array_index);
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extern void freeze_size(DYNAMIC_ARRAY *array);
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extern int get_index_dynamic(DYNAMIC_ARRAY *array, uchar * element);
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#define dynamic_array_ptr(array,array_index) ((array)->buffer+(array_index)*(array)->size_of_element)
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#define dynamic_element(array,array_index,type) ((type)((array)->buffer) +(array_index))
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#define push_dynamic(A,B) insert_dynamic((A),(B))
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#define reset_dynamic(array) ((array)->elements= 0)
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#define sort_dynamic(A,cmp) my_qsort((A)->buffer, (A)->elements, (A)->size_of_element, (cmp))
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extern my_bool init_dynamic_string(DYNAMIC_STRING *str, const char *init_str,
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size_t init_alloc,size_t alloc_increment);
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extern my_bool dynstr_append(DYNAMIC_STRING *str, const char *append);
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my_bool dynstr_append_mem(DYNAMIC_STRING *str, const char *append,
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size_t length);
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extern my_bool dynstr_append_os_quoted(DYNAMIC_STRING *str, const char *append,
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...);
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extern my_bool dynstr_set(DYNAMIC_STRING *str, const char *init_str);
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extern my_bool dynstr_realloc(DYNAMIC_STRING *str, size_t additional_size);
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extern my_bool dynstr_trunc(DYNAMIC_STRING *str, size_t n);
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extern void dynstr_free(DYNAMIC_STRING *str);
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#ifdef HAVE_MLOCK
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extern void *my_malloc_lock(size_t length,myf flags);
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extern void my_free_lock(void *ptr,myf flags);
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#else
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#define my_malloc_lock(A,B) my_malloc((A),(B))
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#define my_free_lock(A,B) my_free((A),(B))
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#endif
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#define alloc_root_inited(A) ((A)->min_malloc != 0)
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#define ALLOC_ROOT_MIN_BLOCK_SIZE (MALLOC_OVERHEAD + sizeof(USED_MEM) + 8)
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#define clear_alloc_root(A) do { (A)->free= (A)->used= (A)->pre_alloc= 0; (A)->min_malloc=0;} while(0)
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extern void init_alloc_root(MEM_ROOT *mem_root, size_t block_size,
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size_t pre_alloc_size);
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extern void *alloc_root(MEM_ROOT *mem_root, size_t Size);
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extern void *multi_alloc_root(MEM_ROOT *mem_root, ...);
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extern void free_root(MEM_ROOT *root, myf MyFLAGS);
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extern void set_prealloc_root(MEM_ROOT *root, char *ptr);
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extern void reset_root_defaults(MEM_ROOT *mem_root, size_t block_size,
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size_t prealloc_size);
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extern char *strdup_root(MEM_ROOT *root,const char *str);
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extern char *strmake_root(MEM_ROOT *root,const char *str,size_t len);
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extern void *memdup_root(MEM_ROOT *root,const void *str, size_t len);
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extern int get_defaults_options(int argc, char **argv,
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char **defaults, char **extra_defaults,
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char **group_suffix);
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extern int my_load_defaults(const char *conf_file, const char **groups,
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int *argc, char ***argv, const char ***);
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extern int load_defaults(const char *conf_file, const char **groups,
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int *argc, char ***argv);
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extern int modify_defaults_file(const char *file_location, const char *option,
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const char *option_value,
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const char *section_name, int remove_option);
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extern int my_search_option_files(const char *conf_file, int *argc,
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char ***argv, uint *args_used,
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Process_option_func func, void *func_ctx,
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const char **default_directories);
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extern void free_defaults(char **argv);
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extern void my_print_default_files(const char *conf_file);
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extern void print_defaults(const char *conf_file, const char **groups);
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extern my_bool my_compress(uchar *, size_t *, size_t *);
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extern my_bool my_uncompress(uchar *, size_t , size_t *);
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extern uchar *my_compress_alloc(const uchar *packet, size_t *len,
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size_t *complen);
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extern int packfrm(uchar *, size_t, uchar **, size_t *);
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extern int unpackfrm(uchar **, size_t *, const uchar *);
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extern ha_checksum my_checksum(ha_checksum crc, const uchar *mem,
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size_t count);
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extern void my_sleep(ulong m_seconds);
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extern ulong crc32(ulong crc, const uchar *buf, uint len);
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extern uint my_set_max_open_files(uint files);
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void my_free_open_file_info(void);
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extern time_t my_time(myf flags);
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extern ulonglong my_getsystime(void);
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extern ulonglong my_micro_time();
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extern ulonglong my_micro_time_and_time(time_t *time_arg);
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time_t my_time_possible_from_micro(ulonglong microtime);
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extern my_bool my_gethwaddr(uchar *to);
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extern int my_getncpus();
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|
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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|
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#ifndef MAP_NOSYNC
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#define MAP_NOSYNC 0
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#endif
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#ifndef MAP_NORESERVE
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#define MAP_NORESERVE 0 /* For irix and AIX */
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#endif
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#ifdef HAVE_MMAP64
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#define my_mmap(a,b,c,d,e,f) mmap64(a,b,c,d,e,f)
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#else
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#define my_mmap(a,b,c,d,e,f) mmap(a,b,c,d,e,f)
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#endif
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#define my_munmap(a,b) munmap((a),(b))
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#else
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/* not a complete set of mmap() flags, but only those that nesessary */
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#define PROT_READ 1
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#define PROT_WRITE 2
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#define MAP_NORESERVE 0
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#define MAP_SHARED 0x0001
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#define MAP_PRIVATE 0x0002
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#define MAP_NOSYNC 0x0800
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#define MAP_FAILED ((void *)-1)
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#define MS_SYNC 0x0000
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|
|
#ifndef __NETWARE__
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#define HAVE_MMAP
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#endif
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void *my_mmap(void *, size_t, int, int, int, my_off_t);
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int my_munmap(void *, size_t);
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#endif
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/* my_getpagesize */
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#ifdef HAVE_GETPAGESIZE
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#define my_getpagesize() getpagesize()
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#else
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int my_getpagesize(void);
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#endif
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|
|
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int my_msync(int, void *, size_t, int);
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/* character sets */
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|
extern uint get_charset_number(const char *cs_name, uint cs_flags);
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extern uint get_collation_number(const char *name);
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extern const char *get_charset_name(uint cs_number);
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extern CHARSET_INFO *get_charset(uint cs_number, myf flags);
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extern CHARSET_INFO *get_charset_by_name(const char *cs_name, myf flags);
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extern CHARSET_INFO *get_charset_by_csname(const char *cs_name,
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|
uint cs_flags, myf my_flags);
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|
|
|
extern my_bool resolve_charset(const char *cs_name,
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|
CHARSET_INFO *default_cs,
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|
CHARSET_INFO **cs);
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|
extern my_bool resolve_collation(const char *cl_name,
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|
CHARSET_INFO *default_cl,
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|
CHARSET_INFO **cl);
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|
extern void free_charsets(void);
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|
extern char *get_charsets_dir(char *buf);
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|
extern my_bool my_charset_same(CHARSET_INFO *cs1, CHARSET_INFO *cs2);
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|
extern my_bool init_compiled_charsets(myf flags);
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|
extern void add_compiled_collation(CHARSET_INFO *cs);
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|
extern size_t escape_string_for_mysql(CHARSET_INFO *charset_info,
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|
char *to, size_t to_length,
|
|
const char *from, size_t length);
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|
#ifdef __WIN__
|
|
#define BACKSLASH_MBTAIL
|
|
/* File system character set */
|
|
extern CHARSET_INFO *fs_character_set(void);
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|
#endif
|
|
extern size_t escape_quotes_for_mysql(CHARSET_INFO *charset_info,
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|
char *to, size_t to_length,
|
|
const char *from, size_t length);
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|
|
extern void thd_increment_bytes_sent(ulong length);
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|
extern void thd_increment_bytes_received(ulong length);
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|
extern void thd_increment_net_big_packet_count(ulong length);
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|
|
#ifdef __WIN__
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extern my_bool have_tcpip; /* Is set if tcpip is used */
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|
|
/* implemented in my_windac.c */
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|
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int my_security_attr_create(SECURITY_ATTRIBUTES **psa, const char **perror,
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|
DWORD owner_rights, DWORD everybody_rights);
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|
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void my_security_attr_free(SECURITY_ATTRIBUTES *sa);
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|
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/* implemented in my_conio.c */
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char* my_cgets(char *string, size_t clen, size_t* plen);
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|
|
#endif
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|
#ifdef __NETWARE__
|
|
void netware_reg_user(const char *ip, const char *user,
|
|
const char *application);
|
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#endif
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C_MODE_END
|
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#endif /* _my_sys_h */
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