/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301, USA */ #ifndef _my_sys_h #define _my_sys_h #ifdef __cplusplus extern "C" { #endif #ifdef HAVE_AIOWAIT #include /* Used by record-cache */ typedef struct my_aio_result { aio_result_t result; int pending; } my_aio_result; #endif #ifndef _mariadb_ctype_h #include /* for MARIADB_CHARSET_INFO */ #endif #include #define MYSYS_PROGRAM_USES_CURSES() { ma_error_handler_hook = ma_message_curses; mysys_uses_curses=1; } #define MYSYS_PROGRAM_DONT_USE_CURSES() { ma_error_handler_hook = ma_message_no_curses; mysys_uses_curses=0;} #define MY_INIT(name); { ma_progname= name; ma_init(); } #define MAXMAPS (4) /* Number of error message maps */ #define ERRMOD (1000) /* Max number of errors in a map */ #define ERRMSGSIZE (SC_MAXWIDTH) /* Max length of a error message */ #define NRERRBUFFS (2) /* Buffers for parameters */ #define MY_FILE_ERROR ((uint) ~0) /* General bitmaps for my_func's */ #define MY_FFNF 1 /* Fatal if file not found */ #define MY_FNABP 2 /* Fatal if not all bytes read/writen */ #define MY_NABP 4 /* Error if not all bytes read/writen */ #define MY_FAE 8 /* Fatal if any error */ #define MY_WME 16 /* Write message on error */ #define MY_WAIT_IF_FULL 32 /* Wait and try again if disk full error */ #define MY_RAID 64 /* Support for RAID (not the "Johnson&Johnson"-s one ;) */ #define MY_DONT_CHECK_FILESIZE 128 /* Option to init_io_cache() */ #define MY_LINK_WARNING 32 /* my_redel() gives warning if links */ #define MY_COPYTIME 64 /* my_redel() copys time */ #define MY_DELETE_OLD 256 /* my_create_with_symlink() */ #define MY_RESOLVE_LINK 128 /* my_realpath(); Only resolve links */ #define MY_HOLD_ORIGINAL_MODES 128 /* my_copy() holds to file modes */ #define MY_REDEL_MAKE_BACKUP 256 #define MY_SEEK_NOT_DONE 32 /* my_lock may have to do a seek */ #define MY_DONT_WAIT 64 /* my_lock() don't wait if can't lock */ #define MY_ZEROFILL 32 /* ma_malloc(), fill array with zero */ #define MY_ALLOW_ZERO_PTR 64 /* ma_realloc() ; zero ptr -> malloc */ #define MY_FREE_ON_ERROR 128 /* ma_realloc() ; Free old ptr on error */ #define MY_HOLD_ON_ERROR 256 /* ma_realloc() ; Return old ptr on error */ #define MY_THREADSAFE 128 /* pread/pwrite: Don't allow interrupts */ #define MY_DONT_OVERWRITE_FILE 1024 /* my_copy; Don't overwrite file */ #define MY_CHECK_ERROR 1 /* Params to ma_end; Check open-close */ #define MY_GIVE_INFO 2 /* Give time info about process*/ #define ME_HIGHBYTE 8 /* Shift for colours */ #define ME_NOCUR 1 /* Don't use curses message */ #define ME_OLDWIN 2 /* Use old window */ #define ME_BELL 4 /* Ring bell then printing message */ #define ME_HOLDTANG 8 /* Don't delete last keys */ #define ME_WAITTOT 16 /* Wait for errtime secs of for a action */ #define ME_WAITTANG 32 /* Wait for a user action */ #define ME_NOREFRESH 64 /* Dont refresh screen */ #define ME_NOINPUT 128 /* Dont use the input libary */ #define ME_COLOUR1 ((1 << ME_HIGHBYTE)) /* Possibly error-colours */ #define ME_COLOUR2 ((2 << ME_HIGHBYTE)) #define ME_COLOUR3 ((3 << ME_HIGHBYTE)) /* My seek flags */ #define MY_SEEK_SET 0 #define MY_SEEK_CUR 1 #define MY_SEEK_END 2 /* My charsets_list flags */ #define MY_NO_SETS 0 #define MY_COMPILED_SETS 1 /* show compiled-in sets */ #define MY_CONFIG_SETS 2 /* sets that have a *.conf file */ #define MY_INDEX_SETS 4 /* all sets listed in the Index file */ #define MY_LOADED_SETS 8 /* the sets that are currently loaded */ /* Some constants */ #define MY_WAIT_FOR_USER_TO_FIX_PANIC 60 /* in seconds */ #define MY_WAIT_GIVE_USER_A_MESSAGE 10 /* Every 10 times of prev */ #define MIN_COMPRESS_LENGTH 50 /* Don't compress small bl. */ #define KEYCACHE_BLOCK_SIZE 1024 /* root_alloc flags */ #define MY_KEEP_PREALLOC 1 /* defines when allocating data */ #define my_checkmalloc() (0) #undef TERMINATE #define TERMINATE(A) {} #define QUICK_SAFEMALLOC #define NORMAL_SAFEMALLOC #define ma_malloc_ci(SZ,FLAG) ma_malloc( SZ, FLAG ) #define CALLER_INFO_PROTO /* nothing */ #define CALLER_INFO /* nothing */ #define ORIG_CALLER_INFO /* nothing */ #ifdef HAVE_ALLOCA #if defined(_AIX) && !defined(__GNUC__) #pragma alloca #endif /* _AIX */ #if defined(__GNUC__) && !defined(HAVE_ALLOCA_H) #ifndef alloca #define alloca __builtin_alloca #endif #endif /* GNUC */ #define my_alloca(SZ) alloca((size_t) (SZ)) #define my_afree(PTR) {} #else #define my_alloca(SZ) ma_malloc(SZ,MYF(0)) #define my_afree(PTR) ma_free(PTR) #endif /* HAVE_ALLOCA */ #ifdef MSDOS #ifdef __ZTC__ void * __CDECL halloc(long count,size_t length); void __CDECL hfree(void *ptr); #endif #if defined(USE_HALLOC) #if defined(_VCM_) || defined(M_IC80386) #undef USE_HALLOC #endif #endif #ifdef USE_HALLOC #define malloc(a) halloc((long) (a),1) #define free(a) hfree(a) #endif #endif /* MSDOS */ #ifndef errno #ifdef HAVE_ERRNO_AS_DEFINE #include /* errno is a define */ #else extern int errno; /* declare errno */ #endif #endif extern const char ** NEAR my_errmsg[]; extern char NEAR errbuff[NRERRBUFFS][ERRMSGSIZE]; /* tbr extern int (*ma_error_handler_hook)(uint my_err, const char *str,myf MyFlags); extern int (*fatal_ma_error_handler_hook)(uint my_err, const char *str, myf MyFlags); */ /* charsets */ /* tbr extern uint get_charset_number(const char *cs_name); extern const char *get_charset_name(uint cs_number); extern my_bool set_default_charset(uint cs, myf flags); extern my_bool set_default_charset_by_name(const char *cs_name, myf flags); extern void free_charsets(void); extern char *list_charsets(myf want_flags); extern char *get_charsets_dir(char *buf); */ extern MARIADB_CHARSET_INFO *get_charset(uint cs_number, myf flags); extern MARIADB_CHARSET_INFO *get_charset_by_name(const char *cs_name); extern MARIADB_CHARSET_INFO *get_charset_by_nr(uint cs_number); /* string functions */ char *ma_strmake(register char *dst, register const char *src, size_t length); /* statistics */ #ifdef TBR extern ulong _my_cache_w_requests,_my_cache_write,_my_cache_r_requests, _my_cache_read; extern ulong _my_blocks_used,_my_blocks_changed; extern ulong ma_file_opened,ma_stream_opened, ma_tmp_file_created; extern my_bool key_cache_inited; /* Point to current ma_message() */ extern void (*my_sigtstp_cleanup)(void), /* Executed before jump to shell */ (*my_sigtstp_restart)(void), (*my_abort_hook)(int); /* Executed when comming from shell */ extern int NEAR ma_umask, /* Default creation mask */ NEAR ma_umask_dir, NEAR my_recived_signals, /* Signals we have got */ NEAR my_safe_to_handle_signal, /* Set when allowed to SIGTSTP */ NEAR ma_dont_interrupt; /* call remember_intr when set */ extern my_bool NEAR mysys_uses_curses, ma_use_symdir; extern size_t lCurMemory,lMaxMemory; /* from safemalloc */ extern ulong ma_default_record_cache_size; extern my_bool NEAR ma_disable_locking,NEAR ma_disable_async_io, NEAR ma_disable_flush_key_blocks, NEAR ma_disable_symlinks; extern char wild_many,wild_one,wild_prefix; extern const char *charsets_dir; extern char *defaults_extra_file; typedef struct wild_file_pack /* Struct to hold info when selecting files */ { uint wilds; /* How many wildcards */ uint not_pos; /* Start of not-theese-files */ my_string *wild; /* Pointer to wildcards */ } WF_PACK; struct my_rnd_struct { unsigned long seed1,seed2,max_value; double max_value_dbl; }; #endif typedef struct st_typelib { /* Different types saved here */ uint count; /* How many types */ const char *name; /* Name of typelib */ const char **type_names; } TYPELIB; enum cache_type {READ_CACHE,WRITE_CACHE,READ_FIFO,READ_NET,WRITE_NET}; enum flush_type { FLUSH_KEEP, FLUSH_RELEASE, FLUSH_IGNORE_CHANGED, FLUSH_FORCE_WRITE}; typedef struct st_record_cache /* Used when cacheing records */ { File file; int rc_seek,error,inited; uint rc_length,read_length,reclength; my_off_t rc_record_pos,end_of_file; unsigned char *rc_buff,*rc_buff2,*rc_pos,*rc_end,*rc_request_pos; #ifdef HAVE_AIOWAIT int use_async_io; my_aio_result aio_result; #endif enum cache_type type; } RECORD_CACHE; /* enum file_type { UNOPEN = 0, FILE_BY_OPEN, FILE_BY_CREATE, STREAM_BY_FOPEN, STREAM_BY_FDOPEN, FILE_BY_MKSTEMP }; extern struct ma_file_info { my_string name; enum file_type type; #if defined(THREAD) && !defined(HAVE_PREAD) pthread_mutex_t mutex; #endif } ma_file_info[MY_NFILE]; */ typedef struct st_dynamic_array { char *buffer; uint elements,max_element; uint alloc_increment; uint size_of_element; } DYNAMIC_ARRAY; typedef struct st_dynamic_string { char *str; size_t length,max_length,alloc_increment; } DYNAMIC_STRING; typedef struct st_io_cache /* Used when cacheing files */ { my_off_t pos_in_file,end_of_file; unsigned char *rc_pos,*rc_end,*buffer,*rc_request_pos; int (*read_function)(struct st_io_cache *,unsigned char *,uint); char *file_name; /* if used with 'open_cached_file' */ char *dir,*prefix; File file; int seek_not_done,error; uint buffer_length,read_length; myf myflags; /* Flags used to my_read/my_write */ enum cache_type type; #ifdef HAVE_AIOWAIT 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)->rc_pos + (Count) <= (info)->rc_end ?\ (memcpy(Buffer,(info)->rc_pos,(size_t) (Count)), \ ((info)->rc_pos+=(Count)),0) :\ (*(info)->read_function)((info),Buffer,Count)) #define my_b_get(info) \ ((info)->rc_pos != (info)->rc_end ?\ ((info)->rc_pos++, (int) (uchar) (info)->rc_pos[-1]) :\ _my_b_get(info)) #define my_b_write(info,Buffer,Count) \ ((info)->rc_pos + (Count) <= (info)->rc_end ?\ (memcpy((info)->rc_pos,Buffer,(size_t) (Count)), \ ((info)->rc_pos+=(Count)),0) :\ _my_b_write(info,Buffer,Count)) /* my_b_write_byte dosn't have any err-check */ #define my_b_write_byte(info,chr) \ (((info)->rc_pos < (info)->rc_end) ?\ ((*(info)->rc_pos++)=(chr)) :\ (_my_b_write(info,0,0) , ((*(info)->rc_pos++)=(chr)))) #define my_b_fill_cache(info) \ (((info)->rc_end=(info)->rc_pos),(*(info)->read_function)(info,0,0)) #define my_b_tell(info) ((info)->pos_in_file + \ ((info)->rc_pos - (info)->rc_request_pos)) #define my_b_bytes_in_cache(info) ((uint) ((info)->rc_end - (info)->rc_pos)) typedef struct st_changeable_var { const char *name; /* Name of variable */ long *varptr; /* Pointer to variable */ long def_value, /* Default value */ min_value, /* Min allowed value */ max_value, /* Max allowed value */ sub_size, /* Subtract this from given value */ block_size; /* Value should be a mult. of this */ } CHANGEABLE_VAR; /* structs for ma_alloc_root */ #ifndef ST_MA_USED_MEM_DEFINED #define ST_MA_USED_MEM_DEFINED typedef struct st_ma_used_mem { /* struct for once_alloc */ struct st_ma_used_mem *next; /* Next block in use */ size_t left; /* memory left in block */ size_t size; /* Size of block */ } MA_USED_MEM; typedef struct st_ma_mem_root { MA_USED_MEM *free; MA_USED_MEM *used; MA_USED_MEM *pre_alloc; size_t min_malloc; size_t block_size; unsigned int block_num; unsigned int first_block_usage; void (*error_handler)(void); } MA_MEM_ROOT; #endif /* Prototypes for mysys and my_func functions */ 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 *ma_multi_malloc(myf MyFlags, ...); extern void _myfree(void * pPtr,const char *sFile,uint uLine, myf MyFlag); extern int _sanity(const char *sFile,unsigned int uLine); #ifndef TERMINATE extern void TERMINATE(FILE *file); #endif extern void ma_init_glob_errs(void); 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,myf MyFlags); extern int ma_error _VARARGS((int nr,myf MyFlags, ...)); extern int ma_printf_error _VARARGS((uint my_err, const char *format, myf MyFlags, ...) __attribute__ ((format (printf, 2, 4)))); extern int ma_vsnprintf( char *str, size_t n, const char *format, va_list ap ); extern int ma_snprintf(char* to, size_t n, const char* fmt, ...); extern int ma_message(uint my_err, const char *str,myf MyFlags); extern int _mariadb_stderr_out(unsigned int error, const char *errmsg, myf MyFlags); extern void ma_init(void); extern void ma_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 my_string my_filename(File fd); #ifndef THREAD extern void dont_break(void); extern void allow_break(void); #else #define dont_break() #define allow_break() #endif extern void my_remember_signal(int signal_number,sig_handler (*func)(int)); extern void caseup(my_string str,uint length); extern void casedn(my_string str,uint length); extern void caseup_str(my_string str); extern void casedn_str(my_string str); extern void case_sort(my_string str,uint length); extern uint ma_dirname_part(my_string to,const char *name); extern uint ma_dirname_length(const char *name); #define base_name(A) (A+dirname_length(A)) extern int test_if_hard_path(const char *dir_name); extern char *ma_convert_dirname(my_string name); extern void to_unix_path(my_string name); extern my_string ma_fn_ext(const char *name); extern my_string fn_same(my_string toname,const char *name,int flag); extern my_string ma_fn_format(my_string to,const char *name,const char *dsk, const char *form,int flag); extern size_s ma_strlength(const char *str); extern void ma_pack_dirname(my_string to,const char *from); extern uint unma_pack_dirname(my_string to,const char *from); extern uint ma_cleanup_dirname(my_string to,const char *from); extern uint ma_system_filename(my_string to,const char *from); extern my_string ma_unpack_filename(my_string to,const char *from); extern my_string ma_intern_filename(my_string to,const char *from); extern my_string directory_file_name(my_string dst, const char *src); extern int pack_filename(my_string to, const char *name, size_s max_length); extern my_string my_path(my_string to,const char *progname, const char *own_pathname_part); extern my_string my_load_path(my_string to, const char *path, const char *own_path_prefix); extern int wild_compare(const char *str,const char *wildstr); extern my_string my_strcasestr(const char *src,const char *suffix); extern int my_strcasecmp(const char *s,const char *t); extern int my_strsortcmp(const char *s,const char *t); extern int my_casecmp(const char *s,const char *t,uint length); extern int my_sortcmp(const char *s,const char *t,uint length); extern int my_sortncmp(const char *s,uint s_len, const char *t,uint t_len); #ifdef TBR extern WF_PACK *wf_comp(my_string str); extern int wf_test(struct wild_file_pack *wf_pack,const char *name); extern void wf_end(struct wild_file_pack *buffer); extern size_s strip_sp(my_string str); extern void get_date(my_string to,int timeflag,time_t use_time); extern void soundex(my_string out_pntr, my_string in_pntr,pbool remove_garbage); extern int init_record_cache(RECORD_CACHE *info,uint cachesize,File file, uint reclength,enum cache_type type, pbool use_async_io); extern int read_cache_record(RECORD_CACHE *info,unsigned char *to); extern int end_record_cache(RECORD_CACHE *info); extern int write_cache_record(RECORD_CACHE *info,my_off_t filepos, const unsigned char *record,uint 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 int init_key_cache(ulong use_mem,ulong leave_this_much_mem); extern unsigned char *key_cache_read(File file,my_off_t filepos,unsigned char* buff,uint length, uint block_length,int return_buffer); extern int key_cache_write(File file,my_off_t filepos,unsigned char* buff,uint length, uint block_length,int force_write); extern int flush_key_blocks(int file, enum flush_type type); extern void end_key_cache(void); extern sig_handler my_set_alarm_variable(int signo); extern void my_string_ptr_sort(void *base,uint items,size_s size); extern void radixsort_for_str_ptr(uchar* base[], uint number_of_elements, size_s size_of_element,uchar *buffer[]); extern qsort_t qsort2(void *base_ptr, size_t total_elems, size_t size, qsort2_cmp cmp, void *cmp_argument); extern qsort2_cmp get_ptr_compare(uint); extern int init_io_cache(IO_CACHE *info,File file,uint 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 int _my_b_read(IO_CACHE *info,unsigned char *Buffer,uint Count); extern int _my_b_net_read(IO_CACHE *info,unsigned char *Buffer,uint Count); extern int _my_b_get(IO_CACHE *info); extern int _my_b_async_read(IO_CACHE *info,unsigned char *Buffer,uint Count); extern int _my_b_write(IO_CACHE *info,const unsigned char *Buffer,uint Count); extern int my_block_write(IO_CACHE *info, const unsigned char *Buffer, uint Count, my_off_t pos); extern int flush_io_cache(IO_CACHE *info); extern int end_io_cache(IO_CACHE *info); extern uint my_b_fill(IO_CACHE *info); extern void my_b_seek(IO_CACHE *info,my_off_t pos); extern uint my_b_gets(IO_CACHE *info, char *to, uint max_length); extern uint my_b_printf(IO_CACHE *info, const char* fmt, ...); extern uint 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, uint 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 ma_init_dynamic_array(A,B,C,D) init_dynamic_array(A,B,C,D CALLER_INFO) #endif extern my_bool ma_init_dynamic_array(DYNAMIC_ARRAY *array,uint element_size, uint init_alloc,uint alloc_increment CALLER_INFO_PROTO); #define ma_init_dynamic_array_ci(A,B,C,D) ma_init_dynamic_array(A,B,C,D ORIG_CALLER_INFO) extern my_bool ma_insert_dynamic(DYNAMIC_ARRAY *array,void * element); extern unsigned char *ma_alloc_dynamic(DYNAMIC_ARRAY *array); extern unsigned char *ma_pop_dynamic(DYNAMIC_ARRAY*); extern my_bool ma_set_dynamic(DYNAMIC_ARRAY *array,void * element,uint array_index); extern void ma_get_dynamic(DYNAMIC_ARRAY *array,void * element,uint array_index); extern void ma_delete_dynamic(DYNAMIC_ARRAY *array); extern void ma_delete_dynamic_element(DYNAMIC_ARRAY *array, uint array_index); extern void ma_freeze_size(DYNAMIC_ARRAY *array); #define dynamic_array_ptr(array,array_index) ((array)->buffer+(array_index)*(array)->size_of_element) #define dynamic_element(array,array_index,type) ((type)((array)->buffer) +(array_index)) #define push_dynamic(A,B) ma_insert_dynamic(A,B) extern int ma_find_type(my_string x,TYPELIB *typelib,uint full_name); extern void ma_make_type(my_string to,uint nr,TYPELIB *typelib); extern const char *ma_get_type(TYPELIB *typelib,uint nr); extern my_bool ma_init_dynamic_string(DYNAMIC_STRING *str, const char *init_str, size_t init_alloc, size_t alloc_increment); extern my_bool ma_dynstr_append(DYNAMIC_STRING *str, const char *append); my_bool ma_dynstr_append_mem(DYNAMIC_STRING *str, const char *append, size_t length); extern my_bool ma_dynstr_set(DYNAMIC_STRING *str, const char *init_str); extern my_bool ma_dynstr_realloc(DYNAMIC_STRING *str, size_t additional_size); extern void ma_dynstr_free(DYNAMIC_STRING *str); void set_all_changeable_vars(CHANGEABLE_VAR *vars); my_bool set_changeable_var(my_string str,CHANGEABLE_VAR *vars); my_bool set_changeable_varval(const char *var, ulong val, CHANGEABLE_VAR *vars); #ifdef HAVE_MLOCK extern unsigned char *ma_malloc_lock(size_t length,myf flags); extern void ma_free_lock(unsigned char *ptr,myf flags); #else #define ma_malloc_lock(A,B) ma_malloc((A),(B)) #define ma_free_lock(A,B) ma_free((A),(B)) #endif #define ma_alloc_root_inited(A) ((A)->min_malloc != 0) void ma_init_alloc_root(MA_MEM_ROOT *mem_root, size_t block_size, size_t pre_alloc_size); void *ma_alloc_root(MA_MEM_ROOT *mem_root, size_t Size); void ma_free_root(MA_MEM_ROOT *root, myf MyFLAGS); char *ma_strdup_root(MA_MEM_ROOT *root,const char *str); char *ma_memdup_root(MA_MEM_ROOT *root,const char *str, size_t len); void ma_free_defaults(char **argv); void ma_print_defaults(const char *conf_file, const char **groups); my_bool _mariadb_compress(unsigned char *, size_t *, size_t *); my_bool _mariadb_uncompress(unsigned char *, size_t *, size_t *); unsigned char *_mariadb_compress_alloc(const unsigned char *packet, size_t *len, size_t *complen); ulong checksum(const unsigned char *mem, uint count); #if defined(_MSC_VER) && !defined(_WIN32) extern void sleep(int sec); #endif #ifdef __cplusplus } #endif #endif /* _my_sys_h */