diff options
Diffstat (limited to 'mysys')
-rw-r--r-- | mysys/Makefile.am | 6 | ||||
-rw-r--r-- | mysys/charset2html.c | 177 | ||||
-rw-r--r-- | mysys/default.c | 350 | ||||
-rw-r--r-- | mysys/mf_getdate.c | 42 | ||||
-rw-r--r-- | mysys/mf_iocache2.c | 7 | ||||
-rw-r--r-- | mysys/my_bit.c | 5 | ||||
-rw-r--r-- | mysys/my_bitmap.c | 66 | ||||
-rw-r--r-- | mysys/my_chsize.c | 10 | ||||
-rw-r--r-- | mysys/my_error.c | 117 | ||||
-rw-r--r-- | mysys/my_mmap.c | 89 | ||||
-rw-r--r-- | mysys/ptr_cmp.c | 39 |
11 files changed, 504 insertions, 404 deletions
diff --git a/mysys/Makefile.am b/mysys/Makefile.am index 3ffeeab0411..6a118df03cc 100644 --- a/mysys/Makefile.am +++ b/mysys/Makefile.am @@ -26,7 +26,7 @@ noinst_HEADERS = mysys_priv.h my_static.h \ my_os2cond.c my_os2dirsrch.c my_os2dirsrch.h \ my_os2dlfcn.c my_os2file64.c my_os2mutex.c \ my_os2thread.c my_os2tls.c -libmysys_a_SOURCES = my_init.c my_getwd.c mf_getdate.c \ +libmysys_a_SOURCES = my_init.c my_getwd.c mf_getdate.c my_mmap.c \ mf_path.c mf_loadpath.c my_file.c \ my_open.c my_create.c my_dup.c my_seek.c my_read.c \ my_pread.c my_write.c \ @@ -57,7 +57,6 @@ libmysys_a_SOURCES = my_init.c my_getwd.c mf_getdate.c \ EXTRA_DIST = thr_alarm.c thr_lock.c my_pthread.c my_thr_init.c \ thr_mutex.c thr_rwlock.c libmysys_a_LIBADD = @THREAD_LOBJECTS@ -noinst_PROGRAMS = charset2html @THREAD_LPROGRAMS@ # test_dir_DEPENDENCIES= $(LIBRARIES) # testhash_DEPENDENCIES= $(LIBRARIES) # test_charset_DEPENDENCIES= $(LIBRARIES) @@ -105,9 +104,6 @@ test_dir$(EXEEXT): test_dir.c $(LIBRARIES) test_charset$(EXEEXT): test_charset.c $(LIBRARIES) $(LINK) $(FLAGS) -DMAIN $(srcdir)/test_charset.c $(LDADD) $(LIBS) -charset2html$(EXEEXT): charset2html.c $(LIBRARIES) - $(LINK) $(FLAGS) -DMAIN $(srcdir)/charset2html.c $(LDADD) $(LIBS) - testhash$(EXEEXT): testhash.c $(LIBRARIES) $(LINK) $(FLAGS) -DMAIN $(srcdir)/testhash.c $(LDADD) $(LIBS) diff --git a/mysys/charset2html.c b/mysys/charset2html.c deleted file mode 100644 index 96862ff16a1..00000000000 --- a/mysys/charset2html.c +++ /dev/null @@ -1,177 +0,0 @@ -/* 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 - */ - -/* - Written by Alexander Barkov to check what - a charset is in your favorite web browser -*/ - -#include <my_global.h> -#include <m_ctype.h> -#include <my_sys.h> -#include <mysql_version.h> - -#include <stdio.h> - -typedef struct char_info_st -{ - int cod; - int srt; - int uni; - int low; - int upp; - int ctp; -} MY_CH; - -static int chcmp(const void *vf, const void *vs) -{ - const MY_CH *f=vf; - const MY_CH *s=vs; - - return f->srt-s->srt ? f->srt-s->srt : f->uni-s->uni; -} - -static void print_cs(CHARSET_INFO *cs) -{ - uint i; - int srt; - int clr=0; - MY_CH ch[256]; - - printf("<HTML>\n"); - printf("<HEAD>\n"); - printf("</HEAD>\n"); - printf("<BODY><PRE>\n"); - printf("Charset %s\n",cs->name); - - printf("<TABLE>\n"); - printf("<TR><TH>Code<TH>Uni<TH>Sort<TH>Ctype<TH>Ch<TH>Lo<TH>Up</TR>"); - - for (i=0; i<256; i++) - { - ch[i].cod=i; - ch[i].srt=cs->sort_order ? cs->sort_order[i] : i; - ch[i].uni=cs->tab_to_uni[i]; - ch[i].low=cs->tab_to_uni[cs->to_lower[i]]; - ch[i].upp=cs->tab_to_uni[cs->to_upper[i]]; - ch[i].ctp=cs->ctype[i+1]; - } - - qsort(ch,256,sizeof(MY_CH),&chcmp); - srt=ch[0].srt; - - for (i=0; i<256; i++) - { - clr = (srt!=ch[i].srt) ? !clr : clr; - - printf("<TR bgcolor=#%s>",clr ? "DDDDDD" : "EEEE99"); - printf("<TD>%02X",ch[i].cod); - printf("<TD>%04X",ch[i].uni); - printf("<TD>%02X",ch[i].srt); - - printf("<TD>%s%s%s%s%s%s%s%s", - ch[i].ctp & _MY_U ? "U" : "", - ch[i].ctp & _MY_L ? "L" : "", - ch[i].ctp & _MY_NMR ? "N" : "", - ch[i].ctp & _MY_SPC ? "S" : "", - ch[i].ctp & _MY_PNT ? "P" : "", - ch[i].ctp & _MY_CTR ? "C" : "", - ch[i].ctp & _MY_B ? "B" : "", - ch[i].ctp & _MY_X ? "X" : ""); - - if ((ch[i].uni >= 0x80) && (ch[i].uni <= 0x9F)) - { - /* - Control characters 0x0080..0x009F are dysplayed by some - browers as if they were letters. Don't print them to - avoid confusion. - */ - printf("<TD>ctrl<TD>ctrl<TD>ctrl"); - } - else - { - printf("<TD>&#%d;",ch[i].uni); - printf("<TD>&#%d;",ch[i].low); - printf("<TD>&#%d;",ch[i].upp); - } - printf("</TR>\n"); - srt=ch[i].srt; - } - printf("</TABLE>\n"); - printf("</PRE></BODY>\n"); - printf("</HTML>\n"); -} - -static void print_index() -{ - CHARSET_INFO **cs; - int clr=0; - - get_charset_by_name("",MYF(0)); /* To execute init_available_charsets */ - - printf("All charsets\n"); - printf("<table border=1>\n"); - printf("<tr bgcolor=EEEE99><th>ID<th>Charset<th>Collation<th>Def<th>Bin<th>Com<th>Comment\n"); - for (cs=all_charsets ; cs < all_charsets+256; cs++) - { - if (!cs[0]) - continue; - printf("<tr bgcolor=#%s><td><a href=\"?%s\">%d</a><td>%s<td>%s<td>%s<td>%s<td>%s<td>%s\n", - (clr= !clr) ? "DDDDDD" : "EEEE99", - cs[0]->name,cs[0]->number,cs[0]->csname, - cs[0]->name, - (cs[0]->state & MY_CS_PRIMARY) ? "def " : " ", - (cs[0]->state & MY_CS_BINSORT) ? "bin " : " ", - (cs[0]->state & MY_CS_COMPILED) ? "com " : " ", - cs[0]->comment); - } - printf("</table>\n"); -} - -int main(int argc, char **argv) { - const char *the_set = NULL; - int argcnt = 1; - CHARSET_INFO *cs; - - if (getenv("SCRIPT_NAME")) - { - printf("Content-Type: text/html\r\n\r\n"); - } - my_init(); - - if (argc > argcnt && argv[argcnt][0] == '-' && argv[argcnt][1] == '#') - DBUG_PUSH(argv[argcnt++]+2); - - if (argc > argcnt) - the_set = argv[argcnt++]; - - if (argc > argcnt) - charsets_dir = argv[argcnt++]; - - if (!the_set) - { - print_index(); - return 0; - } - - if (!(cs= get_charset_by_name(the_set, MYF(MY_WME)))) - return 1; - - print_cs(cs); - - return 0; -} diff --git a/mysys/default.c b/mysys/default.c index ea23bbb6693..d6d84f65d8b 100644 --- a/mysys/default.c +++ b/mysys/default.c @@ -37,6 +37,9 @@ #include "m_string.h" #include "m_ctype.h" #include <my_dir.h> +#ifdef __WIN__ +#include <winbase.h> +#endif char *defaults_extra_file=0; @@ -66,19 +69,213 @@ static const char *f_extensions[]= { ".ini", ".cnf", 0 }; static const char *f_extensions[]= { ".cnf", 0 }; #endif -static int search_default_file(DYNAMIC_ARRAY *args,MEM_ROOT *alloc, - const char *dir, const char *config_file, - TYPELIB *group); +/* + This structure defines the context that we pass to callback + function 'handle_default_option' used in search_default_file + to process each option. This context is used if search_default_file + was called from load_defaults. +*/ -static int search_default_file_with_ext(DYNAMIC_ARRAY *args, MEM_ROOT *alloc, +struct handle_option_ctx +{ + MEM_ROOT *alloc; + DYNAMIC_ARRAY *args; + TYPELIB *group; +}; + +static int search_default_file(Process_option_func func, void *func_ctx, + const char *dir, const char *config_file); +static int search_default_file_with_ext(Process_option_func func, + void *func_ctx, const char *dir, const char *ext, - const char *config_file, - TYPELIB *group); + const char *config_file); static char *remove_end_comment(char *ptr); /* + Process config files in default directories. + + SYNOPSIS + search_files() + conf_file Basename for configuration file to search for. + If this is a path, then only this file is read. + argc Pointer to argc of original program + argv Pointer to argv of original program + args_used Pointer to variable for storing the number of + arguments used. + func Pointer to the function to process options + func_ctx It's context. Usually it is the structure to + store additional options. + DESCRIPTION + + This function looks for config files in default directories. Then it + travesrses each of the files and calls func to process each option. + + RETURN + 0 ok + 1 given cinf_file doesn't exist +*/ + +static int search_files(const char *conf_file, int *argc, char ***argv, + uint *args_used, Process_option_func func, + void *func_ctx) +{ + const char **dirs, *forced_default_file; + int error= 0; + DBUG_ENTER("search_files"); + + /* Check if we want to force the use a specific default file */ + forced_default_file= 0; + if (*argc >= 2) + { + if (is_prefix(argv[0][1],"--defaults-file=")) + { + forced_default_file= strchr(argv[0][1],'=') + 1; + (*args_used)++; + } + else if (is_prefix(argv[0][1],"--defaults-extra-file=")) + { + defaults_extra_file= strchr(argv[0][1],'=') + 1; + (*args_used)++; + } + } + + if (forced_default_file) + { + if ((error= search_default_file_with_ext(func, func_ctx, "", "", + forced_default_file)) < 0) + goto err; + if (error > 0) + { + fprintf(stderr, "Could not open required defaults file: %s\n", + forced_default_file); + goto err; + } + } + else if (dirname_length(conf_file)) + { + if ((error= search_default_file(func, func_ctx, NullS, conf_file)) < 0) + goto err; + } + else + { +#ifdef __WIN__ + char system_dir[FN_REFLEN]; + GetWindowsDirectory(system_dir,sizeof(system_dir)); + if ((search_default_file(func, func_ctx, system_dir, conf_file))) + goto err; +#endif +#if defined(__EMX__) || defined(OS2) + { + const char *etc; + if ((etc= getenv("ETC")) && + (search_default_file(func, func_ctx, etc, conf_file)) < 0) + goto err; + } +#endif + for (dirs= default_directories ; *dirs; dirs++) + { + if (**dirs) + { + if (search_default_file(func, func_ctx, *dirs, conf_file) < 0) + goto err; + } + else if (defaults_extra_file) + { + if (search_default_file(func, func_ctx, NullS, + defaults_extra_file) < 0) + goto err; /* Fatal error */ + + } + } + } + + DBUG_RETURN(error); + +err: + fprintf(stderr,"Fatal error in defaults handling. Program aborted\n"); + exit(1); + return 0; /* Keep compiler happy */ +} + + +/* + Simplified version of search_files (no argv, argc to process). + + SYNOPSIS + process_default_option_files() + conf_file Basename for configuration file to search for. + If this is a path, then only this file is read. + func Pointer to the function to process options + func_ctx It's context. Usually it is the structure to + store additional options. + + DESCRIPTION + + Often we want only to get options from default config files. In this case we + don't want to provide any argc and argv parameters. This function is a + simplified variant of search_files which allows us to forget about + argc, argv. + + RETURN + 0 ok + 1 given cinf_file doesn't exist +*/ + +int process_default_option_files(const char *conf_file, + Process_option_func func, void *func_ctx) +{ + int argc= 1; + /* this is a dummy variable for search_files() */ + uint args_used; + + return search_files(conf_file, &argc, NULL, &args_used, func, func_ctx); +} + + +/* + The option handler for load_defaults. + + SYNOPSIS + handle_deault_option() + in_ctx Handler context. In this case it is a + handle_option_ctx structure. + group_name The name of the group the option belongs to. + option The very option to be processed. It is already + prepared to be used in argv (has -- prefix) + + DESCRIPTION + This handler checks whether a group is one of the listed and adds an option + to the array if yes. Some other handler can record, for instance, all + groups and their options, not knowing in advance the names and amount of + groups. + + RETURN + 0 - ok + 1 - error occured +*/ + +static int handle_default_option(void *in_ctx, const char *group_name, + const char *option) +{ + char *tmp; + struct handle_option_ctx *ctx= (struct handle_option_ctx *) in_ctx; + + if (find_type((char *)group_name, ctx->group, 3)) + { + if (!(tmp= alloc_root(ctx->alloc, (uint) strlen(option) + 1))) + return 1; + if (insert_dynamic(ctx->args, (gptr) &tmp)) + return 1; + strmov(tmp, option); + } + + return 0; +} + + +/* Read options from configurations files SYNOPSIS @@ -106,22 +303,20 @@ static char *remove_end_comment(char *ptr); RETURN 0 ok 1 The given conf_file didn't exists - 2 The given conf_file was not a normal readable file */ int load_defaults(const char *conf_file, const char **groups, - int *argc, char ***argv) + int *argc, char ***argv) { DYNAMIC_ARRAY args; - const char **dirs, *forced_default_file; TYPELIB group; my_bool found_print_defaults=0; uint args_used=0; int error= 0; MEM_ROOT alloc; - char *ptr, **res; - + char *ptr,**res; + struct handle_option_ctx ctx; DBUG_ENTER("load_defaults"); init_alloc_root(&alloc,512,0); @@ -143,82 +338,22 @@ int load_defaults(const char *conf_file, const char **groups, DBUG_RETURN(0); } - /* Check if we want to force the use a specific default file */ - forced_default_file=0; - if (*argc >= 2) - { - if (is_prefix(argv[0][1],"--defaults-file=")) - { - forced_default_file=strchr(argv[0][1],'=')+1; - args_used++; - } - else if (is_prefix(argv[0][1],"--defaults-extra-file=")) - { - defaults_extra_file=strchr(argv[0][1],'=')+1; - args_used++; - } - } - group.count=0; group.name= "defaults"; group.type_names= groups; + for (; *groups ; groups++) group.count++; if (my_init_dynamic_array(&args, sizeof(char*),*argc, 32)) goto err; - if (forced_default_file) - { - if ((error= search_default_file_with_ext(&args, &alloc, "", "", - forced_default_file, - &group)) < 0) - goto err; - if (error > 0) - { - fprintf(stderr, "Could not open required defaults file: %s\n", - forced_default_file); - goto err; - } - } - else if (dirname_length(conf_file)) - { - if ((error= search_default_file(&args, &alloc, NullS, conf_file, - &group)) < 0) - goto err; - } - else - { -#ifdef __WIN__ - char system_dir[FN_REFLEN]; - GetWindowsDirectory(system_dir,sizeof(system_dir)); - if ((search_default_file(&args, &alloc, system_dir, conf_file, &group))) - goto err; -#endif -#if defined(__EMX__) || defined(OS2) - { - const char *etc; - if ((etc= getenv("ETC")) && - (search_default_file(&args, &alloc, etc, conf_file, - &group)) < 0) - goto err; - } -#endif - for (dirs=default_directories ; *dirs; dirs++) - { - if (**dirs) - { - if (search_default_file(&args, &alloc, *dirs, conf_file, - &group) < 0) - goto err; - } - else if (defaults_extra_file) - { - if (search_default_file(&args, &alloc, NullS, defaults_extra_file, - &group) < 0) - goto err; /* Fatal error */ - } - } - } + + ctx.alloc= &alloc; + ctx.args= &args; + ctx.group= &group; + + error= search_files(conf_file, argc, argv, &args_used, + handle_default_option, (void *) &ctx); /* Here error contains <> 0 only if we have a fully specified conf_file or a forced default file @@ -278,17 +413,19 @@ void free_defaults(char **argv) } -static int search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc, +static int search_default_file(Process_option_func opt_handler, + void *handler_ctx, const char *dir, - const char *config_file, TYPELIB *group) + const char *config_file) { char **ext; for (ext= (char**) f_extensions; *ext; *ext++) { int error; - if ((error= search_default_file_with_ext(args, alloc, dir, *ext, - config_file, group)) < 0) + if ((error= search_default_file_with_ext(opt_handler, handler_ctx, + dir, *ext, + config_file)) < 0) return error; } return 0; @@ -300,29 +437,32 @@ static int search_default_file(DYNAMIC_ARRAY *args, MEM_ROOT *alloc, SYNOPSIS search_default_file_with_ext() - args Store pointer to found options here - alloc Allocate strings in this object + opt_handler Option handler function. It is used to process + every separate option. + handler_ctx Pointer to the structure to store actual + parameters of the function. dir directory to read - config_file Name of configuration file ext Extension for configuration file + config_file Name of configuration file group groups to read RETURN 0 Success -1 Fatal error, abort 1 File not found (Warning) - 2 File is not a regular file (Warning) */ -static int search_default_file_with_ext(DYNAMIC_ARRAY *args, MEM_ROOT *alloc, - const char *dir, const char *ext, - const char *config_file, - TYPELIB *group) +static int search_default_file_with_ext(Process_option_func opt_handler, + void *handler_ctx, + const char *dir, + const char *ext, + const char *config_file) { - char name[FN_REFLEN+10],buff[4096],*ptr,*end,*value,*tmp; + char name[FN_REFLEN+10], buff[4096], curr_gr[4096], *ptr, *end; + char *value, option[4096]; FILE *fp; uint line=0; - my_bool read_values=0,found_group=0; + my_bool found_group=0; if ((dir ? strlen(dir) : 0 )+strlen(config_file) >= FN_REFLEN-3) return 0; /* Ignore wrong paths */ @@ -379,7 +519,8 @@ static int search_default_file_with_ext(DYNAMIC_ARRAY *args, MEM_ROOT *alloc, } for ( ; my_isspace(&my_charset_latin1,end[-1]) ; end--) ;/* Remove end space */ end[0]=0; - read_values=find_type(ptr,group,3) > 0; + + strnmov(curr_gr, ptr, min((uint) (end-ptr)+1, 4096)); continue; } if (!found_group) @@ -389,19 +530,17 @@ static int search_default_file_with_ext(DYNAMIC_ARRAY *args, MEM_ROOT *alloc, name,line); goto err; } - if (!read_values) - continue; + + end= remove_end_comment(ptr); if ((value= strchr(ptr, '='))) end= value; /* Option without argument */ for ( ; my_isspace(&my_charset_latin1,end[-1]) ; end--) ; if (!value) { - if (!(tmp=alloc_root(alloc,(uint) (end-ptr)+3))) - goto err; - strmake(strmov(tmp,"--"),ptr,(uint) (end-ptr)); - if (insert_dynamic(args,(gptr) &tmp)) - goto err; + strmake(strmov(option,"--"),ptr,(uint) (end-ptr)); + if (opt_handler(handler_ctx, curr_gr, option)) + goto err; } else { @@ -423,12 +562,7 @@ static int search_default_file_with_ext(DYNAMIC_ARRAY *args, MEM_ROOT *alloc, value++; value_end--; } - if (!(tmp=alloc_root(alloc,(uint) (end-ptr)+3 + - (uint) (value_end-value)+1))) - goto err; - if (insert_dynamic(args,(gptr) &tmp)) - goto err; - ptr=strnmov(strmov(tmp,"--"),ptr,(uint) (end-ptr)); + ptr=strnmov(strmov(option,"--"),ptr,(uint) (end-ptr)); *ptr++= '='; for ( ; value != value_end; value++) @@ -470,6 +604,8 @@ static int search_default_file_with_ext(DYNAMIC_ARRAY *args, MEM_ROOT *alloc, *ptr++= *value; } *ptr=0; + if (opt_handler(handler_ctx, curr_gr, option)) + goto err; } } my_fclose(fp,MYF(0)); diff --git a/mysys/mf_getdate.c b/mysys/mf_getdate.c index 189d43e782a..b12e68cc1f9 100644 --- a/mysys/mf_getdate.c +++ b/mysys/mf_getdate.c @@ -19,11 +19,20 @@ #include "mysys_priv.h" #include <m_string.h> - /* - If flag & 1 Return date and time - If flag & 2 Return short date format YYMMDD - if flag & 4 Return time in HHMMDD format. - */ +/* + get date as string + + SYNOPSIS + get_date() + to - string where date will be written + flag - format of date: + If flag & GETDATE_TIME Return date and time + If flag & GETDATE_SHORT_DATE Return short date format YYMMDD + If flag & GETDATE_HHMMSSTIME Return time in HHMMDD format. + If flag & GETDATE_GMT Date/time in GMT + If flag & GETDATE_FIXEDLENGTH Return fixed length date/time + date - for conversion +*/ void get_date(register my_string to, int flag, time_t date) @@ -36,27 +45,36 @@ void get_date(register my_string to, int flag, time_t date) skr=date ? (time_t) date : time((time_t*) 0); #if defined(HAVE_LOCALTIME_R) && defined(_REENTRANT) - localtime_r(&skr,&tm_tmp); + if (flag & GETDATE_GMT) + localtime_r(&skr,&tm_tmp); + else + gmtime_r(&skr,&tm_tmp); start_time= &tm_tmp; #else - start_time=localtime(&skr); + if (flag & GETDATE_GMT) + start_time= localtime(&skr); + else + gmtime(&skr,&tm_tmp); #endif - if (flag & 2) + if (flag & GETDATE_SHORT_DATE) sprintf(to,"%02d%02d%02d", start_time->tm_year % 100, start_time->tm_mon+1, start_time->tm_mday); else - sprintf(to,"%d-%02d-%02d", + sprintf(to, ((flag & GETDATE_FIXEDLENGTH) ? + "%4d-%02d-%02d" : "%d-%02d-%02d"), start_time->tm_year+1900, start_time->tm_mon+1, start_time->tm_mday); - if (flag & 1) - sprintf(strend(to)," %2d:%02d:%02d", + if (flag & GETDATE_DATE_TIME) + sprintf(strend(to), + ((flag & GETDATE_FIXEDLENGTH) ? + " %02d:%02d:%02d" : " %2d:%02d:%02d"), start_time->tm_hour, start_time->tm_min, start_time->tm_sec); - else if (flag & 4) + else if (flag & GETDATE_HHMMSSTIME) sprintf(strend(to),"%02d%02d%02d", start_time->tm_hour, start_time->tm_min, diff --git a/mysys/mf_iocache2.c b/mysys/mf_iocache2.c index 3755bcdb53d..1f3db84304e 100644 --- a/mysys/mf_iocache2.c +++ b/mysys/mf_iocache2.c @@ -65,6 +65,13 @@ my_off_t my_b_append_tell(IO_CACHE* info) return res; } +my_off_t my_b_safe_tell(IO_CACHE *info) +{ + if (unlikely(info->type == SEQ_READ_APPEND)) + return my_b_append_tell(info); + return my_b_tell(info); +} + /* Make next read happen at the given position For write cache, make next write happen at the given position diff --git a/mysys/my_bit.c b/mysys/my_bit.c index 55dd72f5f76..01c9b5ea68d 100644 --- a/mysys/my_bit.c +++ b/mysys/my_bit.c @@ -71,3 +71,8 @@ uint my_count_bits(ulonglong v) #endif } +uint my_count_bits_ushort(ushort v) +{ + return nbits[v]; +} + diff --git a/mysys/my_bitmap.c b/mysys/my_bitmap.c index ca75842ffcf..1d98204ff8e 100644 --- a/mysys/my_bitmap.c +++ b/mysys/my_bitmap.c @@ -28,6 +28,9 @@ * when both arguments are bitmaps, they must be of the same size * bitmap_intersect() is an exception :) (for for Bitmap::intersect(ulonglong map2buff)) + + If THREAD is defined all bitmap operations except bitmap_init/bitmap_free + are thread-safe. TODO: Make assembler THREAD safe versions of these using test-and-set instructions @@ -329,3 +332,66 @@ void bitmap_union(MY_BITMAP *map, const MY_BITMAP *map2) bitmap_unlock(map); } + +/* + SYNOPSIS + bitmap_bits_set() + map + RETURN + Number of set bits in the bitmap. +*/ + +uint bitmap_bits_set(const MY_BITMAP *map) +{ + uchar *m= map->bitmap; + uchar *end= m + map->bitmap_size; + uint res= 0; + + DBUG_ASSERT(map->bitmap); + bitmap_lock((MY_BITMAP *)map); + while (m < end) + { + res+= my_count_bits_ushort(*m++); + } + bitmap_unlock((MY_BITMAP *)map); + return res; +} + + +/* + SYNOPSIS + bitmap_get_first() + map + RETURN + Number of first unset bit in the bitmap or MY_BIT_NONE if all bits are set. +*/ + +uint bitmap_get_first(const MY_BITMAP *map) +{ + uchar *bitmap=map->bitmap; + uint bit_found = MY_BIT_NONE; + uint bitmap_size=map->bitmap_size*8; + uint i; + + DBUG_ASSERT(map->bitmap); + bitmap_lock((MY_BITMAP *)map); + for (i=0; i < bitmap_size ; i++, bitmap++) + { + if (*bitmap != 0xff) + { /* Found slot with free bit */ + uint b; + for (b=0; ; b++) + { + if (!(*bitmap & (1 << b))) + { + bit_found = (i*8)+b; + break; + } + } + break; /* Found bit */ + } + } + bitmap_unlock((MY_BITMAP *)map); + return bit_found; +} + diff --git a/mysys/my_chsize.c b/mysys/my_chsize.c index cf26428d65f..c258121226d 100644 --- a/mysys/my_chsize.c +++ b/mysys/my_chsize.c @@ -48,9 +48,9 @@ int my_chsize(File fd, my_off_t newlength, int filler, myf MyFlags) DBUG_PRINT("info",("old_size: %ld", (ulong) oldsize)); if (oldsize > newlength) + { #if defined(HAVE_SETFILEPOINTER) /* This is for the moment only true on windows */ - { long is_success; HANDLE win_file= (HANDLE) _get_osfhandle(fd); long length_low, length_high; @@ -63,35 +63,29 @@ int my_chsize(File fd, my_off_t newlength, int filler, myf MyFlags) DBUG_RETURN(0); my_errno= GetLastError(); goto err; - } #elif defined(HAVE_FTRUNCATE) - { if (ftruncate(fd, (off_t) newlength)) { my_errno= errno; goto err; } DBUG_RETURN(0); - } #elif defined(HAVE_CHSIZE) - { if (chsize(fd, (off_t) newlength)) { my_errno=errno; goto err; } DBUG_RETURN(0); - } #else - { /* Fill space between requested length and true length with 'filler' We should never come here on any modern machine */ VOID(my_seek(fd, newlength, MY_SEEK_SET, MYF(MY_WME+MY_FAE))); swap_variables(my_off_t, newlength, oldsize); - } #endif + } /* Full file with 'filler' until it's as big as requested */ bfill(buff, IO_SIZE, filler); diff --git a/mysys/my_error.c b/mysys/my_error.c index 8a377f63c7e..175f8cf516b 100644 --- a/mysys/my_error.c +++ b/mysys/my_error.c @@ -22,6 +22,15 @@ /* Define some external variables for error handling */ +/* + WARNING! + my_error family functions have to be used according following rules: + - if message have not parameters use my_message(ER_CODE, ER(ER_CODE), MYF(N)) + - if message registered use my_error(ER_CODE, MYF(N), ...). + - With some special text of errror message use: + my_printf_error(ER_CODE, format, MYF(N), ...) +*/ + const char ** NEAR my_errmsg[MAXMAPS]={0,0,0,0}; char NEAR errbuff[NRERRBUFFS][ERRMSGSIZE]; @@ -41,107 +50,22 @@ char NEAR errbuff[NRERRBUFFS][ERRMSGSIZE]; the length value is ignored. */ -int my_error(int nr,myf MyFlags, ...) +int my_error(int nr, myf MyFlags, ...) { - va_list ap; - uint olen, plen; - reg1 const char *tpos; - reg2 char *endpos; - char * par; - char ebuff[ERRMSGSIZE+20]; - int prec_chars; /* output precision */ - my_bool prec_supplied; + const char *format; + va_list args; + char ebuff[ERRMSGSIZE + 20]; DBUG_ENTER("my_error"); - LINT_INIT(prec_chars); /* protected by prec_supplied */ - va_start(ap,MyFlags); DBUG_PRINT("my", ("nr: %d MyFlags: %d errno: %d", nr, MyFlags, errno)); if (nr / ERRMOD == GLOB && my_errmsg[GLOB] == 0) init_glob_errs(); + format= my_errmsg[nr / ERRMOD][nr % ERRMOD]; - olen=(uint) strlen(tpos=my_errmsg[nr / ERRMOD][nr % ERRMOD]); - endpos=ebuff; - - while (*tpos) - { - if (tpos[0] != '%') - { - *endpos++= *tpos++; /* Copy ordinary char */ - continue; - } - if (*++tpos == '%') /* test if %% */ - { - olen--; - } - else - { - /* - Skip size/precision flags to be compatible with printf. - The only size/precision flag supported is "%.*s". - If "%.*u" or "%.*d" are encountered, the precision number is read - from the variable argument list but its value is ignored. - */ - prec_supplied= 0; - if (*tpos== '.') - { - tpos++; - olen--; - if (*tpos == '*') - { - tpos++; - olen--; - prec_chars= va_arg(ap, int); /* get length parameter */ - prec_supplied= 1; - } - } - - if (!prec_supplied) - { - while (my_isdigit(&my_charset_latin1, *tpos) || *tpos == '.' || - *tpos == '-') - tpos++; - - if (*tpos == 'l') /* Skip 'l' argument */ - tpos++; - } - - if (*tpos == 's') /* String parameter */ - { - par= va_arg(ap, char *); - plen= (uint) strlen(par); - if (prec_supplied && prec_chars > 0) - plen= min((uint)prec_chars, plen); - if (olen + plen < ERRMSGSIZE+2) /* Replace if possible */ - { - strmake(endpos, par, plen); - endpos+= plen; - tpos++; - olen+= plen-2; - continue; - } - } - else if (*tpos == 'd' || *tpos == 'u') /* Integer parameter */ - { - register int iarg; - iarg= va_arg(ap, int); - if (*tpos == 'd') - plen= (uint) (int10_to_str((long) iarg, endpos, -10) - endpos); - else - plen= (uint) (int10_to_str((long) (uint) iarg, endpos, 10) - endpos); - if (olen + plen < ERRMSGSIZE+2) /* Replace parameter if possible */ - { - endpos+= plen; - tpos++; - olen+= plen-2; - continue; - } - } - } - *endpos++= '%'; /* % used as % or unknown code */ - } - *endpos= '\0'; /* End of errmessage */ - va_end(ap); + va_start(args,MyFlags); + (void) my_vsnprintf (ebuff, sizeof(ebuff), format, args); + va_end(args); DBUG_RETURN((*error_handler_hook)(nr, ebuff, MyFlags)); } @@ -160,11 +84,14 @@ int my_printf_error(uint error, const char *format, myf MyFlags, ...) { va_list args; char ebuff[ERRMSGSIZE+20]; + DBUG_ENTER("my_printf_error"); + DBUG_PRINT("my", ("nr: %d MyFlags: %d errno: %d Format: %s", + error, MyFlags, errno, format)); va_start(args,MyFlags); - (void) vsprintf (ebuff,format,args); + (void) my_vsnprintf (ebuff, sizeof(ebuff), format, args); va_end(args); - return (*error_handler_hook)(error, ebuff, MyFlags); + DBUG_RETURN((*error_handler_hook)(error, ebuff, MyFlags)); } /* diff --git a/mysys/my_mmap.c b/mysys/my_mmap.c new file mode 100644 index 00000000000..883181edd6c --- /dev/null +++ b/mysys/my_mmap.c @@ -0,0 +1,89 @@ +/* Copyright (C) 2000-2003 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 */ + +#include "mysys_priv.h" + +#ifdef HAVE_MMAP + +/* + system msync() only syncs mmap'ed area to fs cache. + fsync() is required to really sync to disc +*/ +int my_msync(int fd, void *addr, size_t len, int flags) +{ + msync(addr, len, flags); + return my_sync(fd, MYF(0)); +} + +#else +#ifdef __WIN__ + +static SECURITY_ATTRIBUTES mmap_security_attributes= + {sizeof(SECURITY_ATTRIBUTES), 0, TRUE}; + +int my_getpagesize(void) +{ + SYSTEM_INFO si; + GetSystemInfo(&si); + return si.dwPageSize; +} + +void *my_mmap(void *addr, size_t len, int prot, + int flags, int fd, my_off_t offset) +{ + DWORD flProtect=0; + HANDLE hFileMap; + LPVOID ptr; + + flProtect|=SEC_COMMIT; + + hFileMap=CreateFileMapping(fd, NULL, &mmap_security_attributes, + PAGE_READWRITE, 0, len, 0); + if (hFileMap == 0) + return MAP_FAILED; + + ptr=MapViewOfFile(hFileMap, + flags & PROT_WRITE ? FILE_MAP_WRITE : FILE_MAP_READ, + (DWORD)(offset >> 32), (DWORD)offset, len); + + /* + MSDN explicitly states that it's possible to close File Mapping Object + even when a view is not unmapped - then the object will be held open + implicitly until unmap, as every view stores internally a handler of + a corresponding File Mapping Object + */ + CloseHandle(hFileMap); + + if (ptr) + return ptr; + + return MAP_FAILED; +} + +int my_munmap(void *addr, size_t len) +{ + return UnmapViewOfFile(addr) ? 0 : -1; +} + +int my_msync(int fd, void *addr, size_t len, int flags) +{ + return FlushViewOfFile(addr, len) ? 0 : -1; +} + +#endif +#error "no mmap!" +#endif + diff --git a/mysys/ptr_cmp.c b/mysys/ptr_cmp.c index 5fc7ccab4fa..57778574bb6 100644 --- a/mysys/ptr_cmp.c +++ b/mysys/ptr_cmp.c @@ -21,6 +21,7 @@ */ #include "mysys_priv.h" +#include <myisampack.h> static int ptr_compare(uint *compare_length, uchar **a, uchar **b); static int ptr_compare_0(uint *compare_length, uchar **a, uchar **b); @@ -152,3 +153,41 @@ static int ptr_compare_3(uint *compare_length,uchar **a, uchar **b) } return (0); } + +void my_store_ptr(byte *buff, uint pack_length, my_off_t pos) +{ + switch (pack_length) { +#if SIZEOF_OFF_T > 4 + case 8: mi_int8store(buff,pos); break; + case 7: mi_int7store(buff,pos); break; + case 6: mi_int6store(buff,pos); break; + case 5: mi_int5store(buff,pos); break; +#endif + case 4: mi_int4store(buff,pos); break; + case 3: mi_int3store(buff,pos); break; + case 2: mi_int2store(buff,pos); break; + case 1: buff[0]= (uchar) pos; break; + default: DBUG_ASSERT(0); + } + return; +} + +my_off_t my_get_ptr(byte *ptr, uint pack_length) +{ + my_off_t pos; + switch (pack_length) { +#if SIZEOF_OFF_T > 4 + case 8: pos= (my_off_t) mi_uint8korr(ptr); break; + case 7: pos= (my_off_t) mi_uint7korr(ptr); break; + case 6: pos= (my_off_t) mi_uint6korr(ptr); break; + case 5: pos= (my_off_t) mi_uint5korr(ptr); break; +#endif + case 4: pos= (my_off_t) mi_uint4korr(ptr); break; + case 3: pos= (my_off_t) mi_uint3korr(ptr); break; + case 2: pos= (my_off_t) mi_uint2korr(ptr); break; + case 1: pos= (my_off_t) mi_uint2korr(ptr); break; + default: DBUG_ASSERT(0); + } + return pos; +} + |