diff options
Diffstat (limited to 'mysql/mysys/my_lib.c')
| -rw-r--r-- | mysql/mysys/my_lib.c | 378 |
1 files changed, 0 insertions, 378 deletions
diff --git a/mysql/mysys/my_lib.c b/mysql/mysys/my_lib.c deleted file mode 100644 index f2c2940..0000000 --- a/mysql/mysys/my_lib.c +++ /dev/null @@ -1,378 +0,0 @@ -/* Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. - - 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; version 2 of the License. - - 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -*/ - -/* TODO: check for overun of memory for names. */ - -#include "mysys_priv.h" -#include "my_sys.h" -#include "m_string.h" -#include "my_dir.h" /* Structs used by my_dir,includes sys/types */ -#include "mysys_err.h" -#include "my_thread_local.h" -#if !defined(_WIN32) -# include <dirent.h> -#endif - - -/* - We are assuming that directory we are reading is either has less than - 100 files and so can be read in one initial chunk or has more than 1000 - files and so big increment are suitable. -*/ -#define ENTRIES_START_SIZE (8192/sizeof(FILEINFO)) -#define ENTRIES_INCREMENT (65536/sizeof(FILEINFO)) -#define NAMES_START_SIZE 32768 - -static int comp_names(struct fileinfo *a,struct fileinfo *b); - - - /* We need this because program don't know with malloc we used */ - -void my_dirend(MY_DIR *buffer) -{ - DBUG_ENTER("my_dirend"); - if (buffer) - { - delete_dynamic((DYNAMIC_ARRAY*)((char*)buffer + - ALIGN_SIZE(sizeof(MY_DIR)))); - free_root((MEM_ROOT*)((char*)buffer + ALIGN_SIZE(sizeof(MY_DIR)) + - ALIGN_SIZE(sizeof(DYNAMIC_ARRAY))), MYF(0)); - my_free(buffer); - } - DBUG_VOID_RETURN; -} /* my_dirend */ - - - /* Compare in sort of filenames */ - -static int comp_names(struct fileinfo *a, struct fileinfo *b) -{ - return (strcmp(a->name,b->name)); -} /* comp_names */ - - -#if !defined(_WIN32) - -static char* directory_file_name(char *dst, const char *src); - -MY_DIR *my_dir(const char *path, myf MyFlags) -{ - char *buffer; - MY_DIR *result= 0; - FILEINFO finfo; - DYNAMIC_ARRAY *dir_entries_storage; - MEM_ROOT *names_storage; - DIR *dirp; - char tmp_path[FN_REFLEN + 2], *tmp_file; - const struct dirent *dp; - - DBUG_ENTER("my_dir"); - DBUG_PRINT("my",("path: '%s' MyFlags: %d",path,MyFlags)); - - dirp = opendir(directory_file_name(tmp_path,(char *) path)); - if (dirp == NULL || - ! (buffer= my_malloc(key_memory_MY_DIR, - ALIGN_SIZE(sizeof(MY_DIR)) + - ALIGN_SIZE(sizeof(DYNAMIC_ARRAY)) + - sizeof(MEM_ROOT), MyFlags))) - goto error; - - dir_entries_storage= (DYNAMIC_ARRAY*)(buffer + ALIGN_SIZE(sizeof(MY_DIR))); - names_storage= (MEM_ROOT*)(buffer + ALIGN_SIZE(sizeof(MY_DIR)) + - ALIGN_SIZE(sizeof(DYNAMIC_ARRAY))); - - if (my_init_dynamic_array(dir_entries_storage, - key_memory_MY_DIR, - sizeof(FILEINFO), - NULL, /* init_buffer */ - ENTRIES_START_SIZE, ENTRIES_INCREMENT)) - { - my_free(buffer); - goto error; - } - init_alloc_root(key_memory_MY_DIR, names_storage, NAMES_START_SIZE, NAMES_START_SIZE); - - /* MY_DIR structure is allocated and completly initialized at this point */ - result= (MY_DIR*)buffer; - - tmp_file=strend(tmp_path); - - for (dp= readdir(dirp) ; dp; dp= readdir(dirp)) - { - if (!(finfo.name= strdup_root(names_storage, dp->d_name))) - goto error; - - if (MyFlags & MY_WANT_STAT) - { - if (!(finfo.mystat= (MY_STAT*)alloc_root(names_storage, - sizeof(MY_STAT)))) - goto error; - - memset(finfo.mystat, 0, sizeof(MY_STAT)); - (void) my_stpcpy(tmp_file,dp->d_name); - (void) my_stat(tmp_path, finfo.mystat, MyFlags); - if (!(finfo.mystat->st_mode & MY_S_IREAD)) - continue; - } - else - finfo.mystat= NULL; - - if (insert_dynamic(dir_entries_storage, (uchar*)&finfo)) - goto error; - } - - (void) closedir(dirp); - - result->dir_entry= (FILEINFO *)dir_entries_storage->buffer; - result->number_off_files= dir_entries_storage->elements; - - if (!(MyFlags & MY_DONT_SORT)) - my_qsort((void *) result->dir_entry, result->number_off_files, - sizeof(FILEINFO), (qsort_cmp) comp_names); - DBUG_RETURN(result); - - error: - set_my_errno(errno); - if (dirp) - (void) closedir(dirp); - my_dirend(result); - if (MyFlags & (MY_FAE | MY_WME)) - { - char errbuf[MYSYS_STRERROR_SIZE]; - my_error(EE_DIR, MYF(0), path, - my_errno(), my_strerror(errbuf, sizeof(errbuf), my_errno())); - } - DBUG_RETURN((MY_DIR *) NULL); -} /* my_dir */ - - -/* - * Convert from directory name to filename. - * On UNIX, it's simple: just make sure there is a terminating / - - * Returns pointer to dst; - */ - -static char* directory_file_name(char *dst, const char *src) -{ - /* Process as Unix format: just remove test the final slash. */ - char *end; - DBUG_ASSERT(strlen(src) < (FN_REFLEN + 1)); - - if (src[0] == 0) - src= (char*) "."; /* Use empty as current */ - end= my_stpnmov(dst, src, FN_REFLEN + 1); - if (end[-1] != FN_LIBCHAR) - { - end[0]=FN_LIBCHAR; /* Add last '/' */ - end[1]='\0'; - } - return dst; -} - -#else - -/* -***************************************************************************** -** Read long filename using windows rutines -***************************************************************************** -*/ - -MY_DIR *my_dir(const char *path, myf MyFlags) -{ - char *buffer; - MY_DIR *result= 0; - FILEINFO finfo; - DYNAMIC_ARRAY *dir_entries_storage; - MEM_ROOT *names_storage; - struct _finddata_t find; - ushort mode; - char tmp_path[FN_REFLEN],*tmp_file,attrib; -#ifdef _WIN64 - __int64 handle; -#else - long handle; -#endif - DBUG_ENTER("my_dir"); - DBUG_PRINT("my",("path: '%s' stat: %d MyFlags: %d",path,MyFlags)); - - /* Put LIB-CHAR as last path-character if not there */ - tmp_file=tmp_path; - if (!*path) - *tmp_file++ ='.'; /* From current dir */ - tmp_file= my_stpnmov(tmp_file, path, FN_REFLEN-5); - if (tmp_file[-1] == FN_DEVCHAR) - *tmp_file++= '.'; /* From current dev-dir */ - if (tmp_file[-1] != FN_LIBCHAR) - *tmp_file++ =FN_LIBCHAR; - tmp_file[0]='*'; /* Windows needs this !??? */ - tmp_file[1]='.'; - tmp_file[2]='*'; - tmp_file[3]='\0'; - - if (!(buffer= my_malloc(key_memory_MY_DIR, - ALIGN_SIZE(sizeof(MY_DIR)) + - ALIGN_SIZE(sizeof(DYNAMIC_ARRAY)) + - sizeof(MEM_ROOT), MyFlags))) - goto error; - - dir_entries_storage= (DYNAMIC_ARRAY*)(buffer + ALIGN_SIZE(sizeof(MY_DIR))); - names_storage= (MEM_ROOT*)(buffer + ALIGN_SIZE(sizeof(MY_DIR)) + - ALIGN_SIZE(sizeof(DYNAMIC_ARRAY))); - - if (my_init_dynamic_array(dir_entries_storage, - key_memory_MY_DIR, - sizeof(FILEINFO), - NULL, /* init_buffer */ - ENTRIES_START_SIZE, ENTRIES_INCREMENT)) - { - my_free(buffer); - goto error; - } - init_alloc_root(key_memory_MY_DIR, names_storage, NAMES_START_SIZE, NAMES_START_SIZE); - - /* MY_DIR structure is allocated and completly initialized at this point */ - result= (MY_DIR*)buffer; - - if ((handle=_findfirst(tmp_path,&find)) == -1L) - { - DBUG_PRINT("info", ("findfirst returned error, errno: %d", errno)); - if (errno != EINVAL) - goto error; - /* - Could not read the directory, no read access. - Probably because by "chmod -r". - continue and return zero files in dir - */ - } - else - { - - do - { - attrib= find.attrib; - /* - Do not show hidden and system files which Windows sometimes create. - Note. Because Borland's findfirst() is called with the third - argument = 0 hidden/system files are excluded from the search. - */ - if (attrib & (_A_HIDDEN | _A_SYSTEM)) - continue; - if (!(finfo.name= strdup_root(names_storage, find.name))) - goto error; - if (MyFlags & MY_WANT_STAT) - { - if (!(finfo.mystat= (MY_STAT*)alloc_root(names_storage, - sizeof(MY_STAT)))) - goto error; - - memset(finfo.mystat, 0, sizeof(MY_STAT)); - finfo.mystat->st_size=find.size; - mode= MY_S_IREAD; - if (!(attrib & _A_RDONLY)) - mode|= MY_S_IWRITE; - if (attrib & _A_SUBDIR) - mode|= MY_S_IFDIR; - finfo.mystat->st_mode= mode; - finfo.mystat->st_mtime= ((uint32) find.time_write); - } - else - finfo.mystat= NULL; - - if (insert_dynamic(dir_entries_storage, (uchar*)&finfo)) - goto error; - } - while (_findnext(handle,&find) == 0); - - _findclose(handle); - } - - result->dir_entry= (FILEINFO *)dir_entries_storage->buffer; - result->number_off_files= dir_entries_storage->elements; - - if (!(MyFlags & MY_DONT_SORT)) - my_qsort((void *) result->dir_entry, result->number_off_files, - sizeof(FILEINFO), (qsort_cmp) comp_names); - DBUG_PRINT("exit", ("found %d files", result->number_off_files)); - DBUG_RETURN(result); -error: - set_my_errno(errno); - if (handle != -1) - _findclose(handle); - my_dirend(result); - if (MyFlags & MY_FAE+MY_WME) - { - char errbuf[MYSYS_STRERROR_SIZE]; - my_error(EE_DIR, MYF(0), path, - errno, my_strerror(errbuf, sizeof(errbuf), errno)); - } - DBUG_RETURN((MY_DIR *) NULL); -} /* my_dir */ - -#endif /* _WIN32 */ - -/**************************************************************************** -** File status -** Note that MY_STAT is assumed to be same as struct stat -****************************************************************************/ - - -int my_fstat(File Filedes, MY_STAT *stat_area, - myf MyFlags MY_ATTRIBUTE((unused))) -{ - DBUG_ENTER("my_fstat"); - DBUG_PRINT("my",("fd: %d MyFlags: %d", Filedes, MyFlags)); -#ifdef _WIN32 - DBUG_RETURN(my_win_fstat(Filedes, stat_area)); -#else - DBUG_RETURN(fstat(Filedes, (struct stat *) stat_area)); -#endif -} - - -MY_STAT *my_stat(const char *path, MY_STAT *stat_area, myf my_flags) -{ - const int m_used= (stat_area == NULL); - DBUG_ENTER("my_stat"); - DBUG_PRINT("my", ("path: '%s' stat_area: 0x%lx MyFlags: %d", path, - (long) stat_area, my_flags)); - - if (m_used) - if (!(stat_area= (MY_STAT *) my_malloc(key_memory_MY_STAT, - sizeof(MY_STAT), my_flags))) - goto error; -#ifndef _WIN32 - if (! stat((char *) path, (struct stat *) stat_area) ) - DBUG_RETURN(stat_area); -#else - if (! my_win_stat(path, stat_area) ) - DBUG_RETURN(stat_area); -#endif - DBUG_PRINT("error",("Got errno: %d from stat", errno)); - set_my_errno(errno); - if (m_used) /* Free if new area */ - my_free(stat_area); - -error: - if (my_flags & (MY_FAE+MY_WME)) - { - char errbuf[MYSYS_STRERROR_SIZE]; - my_error(EE_STAT, MYF(0), path, - my_errno(), my_strerror(errbuf, sizeof(errbuf), my_errno())); - DBUG_RETURN((MY_STAT *) NULL); - } - DBUG_RETURN((MY_STAT *) NULL); -} /* my_stat */ |