forked from enlightenment/efl
1096 lines
26 KiB
C
1096 lines
26 KiB
C
/* EINA - EFL data type library
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* Copyright (C) 2010 Vincent Torri
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library;
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* if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <sys/types.h>
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#include <sys/stat.h>
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#undef WIN32_LEAN_AND_MEAN
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#include <Evil.h>
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#include "eina_config.h"
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#include "eina_private.h"
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#include "eina_alloca.h"
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/* undefs EINA_ARG_NONULL() so NULL checks are not compiled out! */
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#include "eina_safety_checks.h"
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#include "eina_file.h"
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#include "eina_stringshare.h"
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#include "eina_hash.h"
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#include "eina_list.h"
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#include "eina_lock.h"
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#include "eina_log.h"
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#include "eina_file_common.h"
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/*============================================================================*
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* Local *
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*============================================================================*/
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/**
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* @cond LOCAL
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*/
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#ifdef MAP_FAILED
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# undef MAP_FAILED
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#endif
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#define MAP_FAILED ((void *)-1)
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typedef struct _Eina_File_Iterator Eina_File_Iterator;
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typedef struct _Eina_File_Direct_Iterator Eina_File_Direct_Iterator;
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typedef struct _Eina_File_Map Eina_File_Map;
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struct _Eina_File_Iterator
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{
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Eina_Iterator iterator;
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WIN32_FIND_DATA data;
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HANDLE handle;
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size_t length;
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Eina_Bool is_last : 1;
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char dir[1];
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};
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struct _Eina_File_Direct_Iterator
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{
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Eina_Iterator iterator;
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WIN32_FIND_DATA data;
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HANDLE handle;
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size_t length;
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Eina_Bool is_last : 1;
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Eina_File_Direct_Info info;
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char dir[1];
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};
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int _eina_file_log_dom = -1;
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static Eina_Bool
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_eina_file_win32_is_dir(const char *dir)
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{
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#ifdef UNICODE
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wchar_t *wdir = NULL;
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#endif
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DWORD attr;
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/* check if it's a directory */
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#ifdef UNICODE
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wdir = evil_char_to_wchar(dir);
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if (!wdir)
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return EINA_FALSE;
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attr = GetFileAttributes(wdir);
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free(wdir);
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#else
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attr = GetFileAttributes(dir);
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#endif
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if (attr == 0xFFFFFFFF)
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return EINA_FALSE;
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if (!(attr & FILE_ATTRIBUTE_DIRECTORY))
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return EINA_FALSE;
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return EINA_TRUE;
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}
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static char *
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_eina_file_win32_dir_new(const char *dir)
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{
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char *new_dir;
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size_t length;
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length = strlen(dir);
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new_dir = (char *)malloc(sizeof(char) * length + 5);
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if (!new_dir)
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return NULL;
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memcpy(new_dir, dir, length);
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memcpy(new_dir + length, "\\*.*", 5);
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return new_dir;
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}
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static HANDLE
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_eina_file_win32_first_file(const char *dir, WIN32_FIND_DATA *fd)
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{
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HANDLE h;
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#ifdef UNICODE
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wchar_t *wdir = NULL;
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wdir = evil_char_to_wchar(dir);
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if (!wdir)
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return INVALID_HANDLE_VALUE;
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h = FindFirstFile(wdir, fd);
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free(wdir);
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#else
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h = FindFirstFile(dir, fd);
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#endif
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if (!h)
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return INVALID_HANDLE_VALUE;
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while ((fd->cFileName[0] == '.') &&
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((fd->cFileName[1] == '\0') ||
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((fd->cFileName[1] == '.') && (fd->cFileName[2] == '\0'))))
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{
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if (!FindNextFile(h, fd))
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{
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FindClose(h);
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return INVALID_HANDLE_VALUE;
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}
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}
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return h;
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}
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static Eina_Bool
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_eina_file_win32_ls_iterator_next(Eina_File_Iterator *it, void **data)
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{
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#ifdef UNICODE
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wchar_t *old_name;
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#else
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char *old_name;
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#endif
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char *name;
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char *cname;
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size_t length;
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Eina_Bool is_last;
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Eina_Bool res = EINA_TRUE;
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if (it->handle == INVALID_HANDLE_VALUE)
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{
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if (GetLastError() == ERROR_NO_MORE_FILES)
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it->is_last = EINA_TRUE;
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return EINA_FALSE;
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}
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is_last = it->is_last;
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#ifdef UNICODE
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old_name = _wcsdup(it->data.cFileName);
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#else
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old_name = _strdup(it->data.cFileName);
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#endif
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if (!old_name)
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return EINA_FALSE;
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do {
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if (!FindNextFile(it->handle, &it->data))
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{
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if (GetLastError() == ERROR_NO_MORE_FILES)
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it->is_last = EINA_TRUE;
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else
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res = EINA_FALSE;
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}
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} while ((it->data.cFileName[0] == '.') &&
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((it->data.cFileName[1] == '\0') ||
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((it->data.cFileName[1] == '.') && (it->data.cFileName[2] == '\0')))); /* FIXME: what about UNICODE ? */
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#ifdef UNICODE
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cname = evil_wchar_to_char(old_name);
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if (!cname)
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return EINA_FALSE;
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#else
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cname = old_name;
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#endif
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length = strlen(cname);
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name = alloca(length + 2 + it->length);
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memcpy(name, it->dir, it->length);
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memcpy(name + it->length, "\\", 1);
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memcpy(name + it->length + 1, cname, length + 1);
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*data = (char *)eina_stringshare_add(name);
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#ifdef UNICODE
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free(cname);
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#endif
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free(old_name);
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if (is_last)
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res = EINA_FALSE;
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return res;
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}
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static HANDLE
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_eina_file_win32_ls_iterator_container(Eina_File_Iterator *it)
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{
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return it->handle;
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}
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static void
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_eina_file_win32_ls_iterator_free(Eina_File_Iterator *it)
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{
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if (it->handle != INVALID_HANDLE_VALUE)
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FindClose(it->handle);
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EINA_MAGIC_SET(&it->iterator, 0);
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free(it);
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}
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static Eina_Bool
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_eina_file_win32_direct_ls_iterator_next(Eina_File_Direct_Iterator *it, void **data)
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{
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#ifdef UNICODE
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wchar_t *old_name;
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#else
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char *old_name;
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#endif
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char *cname;
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size_t length;
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DWORD attr;
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Eina_Bool is_last;
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Eina_Bool res = EINA_TRUE;
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if (it->handle == INVALID_HANDLE_VALUE)
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{
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if (GetLastError() == ERROR_NO_MORE_FILES)
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it->is_last = EINA_TRUE;
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return EINA_FALSE;
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}
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attr = it->data.dwFileAttributes;
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is_last = it->is_last;
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#ifdef UNICODE
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old_name = _wcsdup(it->data.cFileName);
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#else
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old_name = _strdup(it->data.cFileName);
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#endif
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if (!old_name)
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return EINA_FALSE;
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do {
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if (!FindNextFile(it->handle, &it->data))
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{
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if (GetLastError() == ERROR_NO_MORE_FILES)
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it->is_last = EINA_TRUE;
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else
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res = EINA_FALSE;
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}
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#ifdef UNICODE
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length = wcslen(old_name);
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#else
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length = strlen(old_name);
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#endif
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if (it->info.name_start + length + 1 >= PATH_MAX)
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{
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free(old_name);
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#ifdef UNICODE
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old_name = _wcsdup(it->data.cFileName);
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#else
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old_name = _strdup(it->data.cFileName);
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#endif
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continue;
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}
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} while ((it->data.cFileName[0] == '.') &&
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((it->data.cFileName[1] == '\0') ||
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((it->data.cFileName[1] == '.') && (it->data.cFileName[2] == '\0')))); /* FIXME: what about UNICODE ? */
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#ifdef UNICODE
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cname = evil_wchar_to_char(old_name);
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if (!cname)
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return EINA_FALSE;
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#else
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cname = old_name;
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#endif
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memcpy(it->info.path + it->info.name_start, cname, length);
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it->info.name_length = length;
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it->info.path_length = it->info.name_start + length;
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it->info.path[it->info.path_length] = '\0';
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if (attr & FILE_ATTRIBUTE_DIRECTORY)
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it->info.type = EINA_FILE_DIR;
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else if (attr & (FILE_ATTRIBUTE_ARCHIVE |
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FILE_ATTRIBUTE_COMPRESSED |
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FILE_ATTRIBUTE_HIDDEN |
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FILE_ATTRIBUTE_NORMAL |
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FILE_ATTRIBUTE_SPARSE_FILE |
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FILE_ATTRIBUTE_TEMPORARY |
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FILE_ATTRIBUTE_REPARSE_POINT))
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it->info.type = EINA_FILE_REG;
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else
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it->info.type = EINA_FILE_UNKNOWN;
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*data = &it->info;
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#ifdef UNICODE
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free(cname);
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#endif
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free(old_name);
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if (is_last)
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res = EINA_FALSE;
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return res;
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}
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static HANDLE
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_eina_file_win32_direct_ls_iterator_container(Eina_File_Direct_Iterator *it)
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{
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return it->handle;
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}
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static void
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_eina_file_win32_direct_ls_iterator_free(Eina_File_Direct_Iterator *it)
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{
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if (it->handle != INVALID_HANDLE_VALUE)
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FindClose(it->handle);
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EINA_MAGIC_SET(&it->iterator, 0);
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free(it);
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}
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void
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eina_file_real_close(Eina_File *file)
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{
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Eina_File_Map *map;
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EINA_LIST_FREE(file->dead_map, map)
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{
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UnmapViewOfFile(map->map);
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free(map);
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}
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if (file->handle != INVALID_HANDLE_VALUE)
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{
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if (!file->copied && file->global_map != MAP_FAILED)
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UnmapViewOfFile(file->global_map);
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CloseHandle(file->handle);
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}
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}
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static void
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_eina_file_map_close(Eina_File_Map *map)
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{
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if (map->map != MAP_FAILED)
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UnmapViewOfFile(map->map);
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free(map);
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}
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static char *
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_eina_file_sep_find(char *s)
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{
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for (; *s != '\0'; ++s)
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if ((*s == '\\') || (*s == '/'))
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return s;
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return NULL;
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}
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/**
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* @endcond
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*/
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/* ================================================================ *
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* Simplified logic for portability layer with eina_file_common *
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* ================================================================ */
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Eina_Bool
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eina_file_path_relative(const char *path)
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{
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return !evil_path_is_absolute(path);
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}
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Eina_Tmpstr *
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eina_file_current_directory_get(const char *path, size_t len)
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{
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char *tmp;
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DWORD l;
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l = GetCurrentDirectory(0, NULL);
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if (l == 0) return NULL;
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tmp = alloca(sizeof (char) * (l + len + 2));
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l = GetCurrentDirectory(l + 1, tmp);
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tmp[l] = '\\';
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memcpy(tmp + l + 1, path, len);
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tmp[l + len + 1] = '\0';
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return eina_tmpstr_add_length(tmp, l + len + 1);
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}
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char *
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eina_file_cleanup(Eina_Tmpstr *path)
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{
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char *result;
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result = strdup(path ? path : "");
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eina_tmpstr_del(path);
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if (!result)
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return NULL;
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EVIL_PATH_SEP_WIN32_TO_UNIX(result);
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return result;
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}
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/*============================================================================*
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* API *
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*============================================================================*/
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EAPI Eina_Bool
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eina_file_dir_list(const char *dir,
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Eina_Bool recursive,
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Eina_File_Dir_List_Cb cb,
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void *data)
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{
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WIN32_FIND_DATA file;
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HANDLE h;
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char *new_dir;
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EINA_SAFETY_ON_NULL_RETURN_VAL(cb, EINA_FALSE);
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EINA_SAFETY_ON_NULL_RETURN_VAL(dir, EINA_FALSE);
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EINA_SAFETY_ON_TRUE_RETURN_VAL(dir[0] == '\0', EINA_FALSE);
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if (!_eina_file_win32_is_dir(dir))
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return EINA_FALSE;
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new_dir = _eina_file_win32_dir_new(dir);
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if (!new_dir)
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return EINA_FALSE;
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h = _eina_file_win32_first_file(new_dir, &file);
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if (h == INVALID_HANDLE_VALUE)
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return EINA_FALSE;
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do
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{
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char *filename;
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# ifdef UNICODE
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filename = evil_wchar_to_char(file.cFileName);
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# else
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filename = file.cFileName;
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# endif /* ! UNICODE */
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if (!strcmp(filename, ".") || !strcmp(filename, ".."))
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continue;
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cb(filename, dir, data);
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if (recursive == EINA_TRUE)
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{
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char *path;
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path = alloca(strlen(dir) + strlen(filename) + 2);
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strcpy(path, dir);
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strcat(path, "/");
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strcat(path, filename);
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if (!(file.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
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continue;
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eina_file_dir_list(path, recursive, cb, data);
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}
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# ifdef UNICODE
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free(filename);
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# endif /* UNICODE */
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} while (FindNextFile(h, &file));
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FindClose(h);
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return EINA_TRUE;
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}
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|
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EAPI Eina_Array *
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eina_file_split(char *path)
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{
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Eina_Array *ea;
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char *current;
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size_t length;
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EINA_SAFETY_ON_NULL_RETURN_VAL(path, NULL);
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ea = eina_array_new(16);
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if (!ea)
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return NULL;
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for (current = _eina_file_sep_find(path);
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current;
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path = current + 1, current = _eina_file_sep_find(path))
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{
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length = current - path;
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if (length == 0)
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continue;
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eina_array_push(ea, path);
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*current = '\0';
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}
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if (*path != '\0')
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eina_array_push(ea, path);
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return ea;
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}
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|
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EAPI Eina_Iterator *
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eina_file_ls(const char *dir)
|
|
{
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Eina_File_Iterator *it;
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char *new_dir;
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size_t length;
|
|
|
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EINA_SAFETY_ON_NULL_RETURN_VAL(dir, NULL);
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|
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if (!dir || !*dir)
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return NULL;
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|
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if (!_eina_file_win32_is_dir(dir))
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return NULL;
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|
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length = strlen(dir);
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|
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it = calloc(1, sizeof (Eina_File_Iterator) + length);
|
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if (!it)
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return NULL;
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|
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EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
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|
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new_dir = _eina_file_win32_dir_new(dir);
|
|
if (!new_dir)
|
|
goto free_it;
|
|
|
|
it->handle = _eina_file_win32_first_file(new_dir, &it->data);
|
|
free(new_dir);
|
|
if ((it->handle == INVALID_HANDLE_VALUE) && (GetLastError() != ERROR_NO_MORE_FILES))
|
|
goto free_it;
|
|
|
|
memcpy(it->dir, dir, length + 1);
|
|
if ((dir[length - 1] != '\\') && (dir[length - 1] != '/'))
|
|
it->length = length;
|
|
else
|
|
it->length = length - 1;
|
|
|
|
it->iterator.version = EINA_ITERATOR_VERSION;
|
|
it->iterator.next = FUNC_ITERATOR_NEXT(_eina_file_win32_ls_iterator_next);
|
|
it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_eina_file_win32_ls_iterator_container);
|
|
it->iterator.free = FUNC_ITERATOR_FREE(_eina_file_win32_ls_iterator_free);
|
|
|
|
return &it->iterator;
|
|
|
|
free_it:
|
|
free(it);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
EAPI Eina_Iterator *
|
|
eina_file_direct_ls(const char *dir)
|
|
{
|
|
Eina_File_Direct_Iterator *it;
|
|
char *new_dir;
|
|
size_t length;
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(dir, NULL);
|
|
|
|
if (!dir || !*dir)
|
|
return NULL;
|
|
|
|
length = strlen(dir);
|
|
|
|
if (length + 12 + 2 >= MAX_PATH)
|
|
return NULL;
|
|
|
|
it = calloc(1, sizeof(Eina_File_Direct_Iterator) + length);
|
|
if (!it)
|
|
return NULL;
|
|
|
|
EINA_MAGIC_SET(&it->iterator, EINA_MAGIC_ITERATOR);
|
|
|
|
new_dir = _eina_file_win32_dir_new(dir);
|
|
if (!new_dir)
|
|
goto free_it;
|
|
|
|
it->handle = _eina_file_win32_first_file(new_dir, &it->data);
|
|
free(new_dir);
|
|
if ((it->handle == INVALID_HANDLE_VALUE) && (GetLastError() != ERROR_NO_MORE_FILES))
|
|
goto free_it;
|
|
|
|
memcpy(it->dir, dir, length + 1);
|
|
it->length = length;
|
|
|
|
memcpy(it->info.path, dir, length);
|
|
if ((dir[length - 1] == '\\') || (dir[length - 1] == '/'))
|
|
it->info.name_start = length;
|
|
else
|
|
{
|
|
it->info.path[length] = '\\';
|
|
it->info.name_start = length + 1;
|
|
}
|
|
|
|
it->iterator.version = EINA_ITERATOR_VERSION;
|
|
it->iterator.next = FUNC_ITERATOR_NEXT(_eina_file_win32_direct_ls_iterator_next);
|
|
it->iterator.get_container = FUNC_ITERATOR_GET_CONTAINER(_eina_file_win32_direct_ls_iterator_container);
|
|
it->iterator.free = FUNC_ITERATOR_FREE(_eina_file_win32_direct_ls_iterator_free);
|
|
|
|
return &it->iterator;
|
|
|
|
free_it:
|
|
free(it);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
EAPI Eina_Iterator *
|
|
eina_file_stat_ls(const char *dir)
|
|
{
|
|
return eina_file_direct_ls(dir);
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eina_file_refresh(Eina_File *file)
|
|
{
|
|
WIN32_FILE_ATTRIBUTE_DATA fad;
|
|
ULARGE_INTEGER length;
|
|
ULARGE_INTEGER mtime;
|
|
Eina_Bool r = EINA_FALSE;
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(file, EINA_FALSE);
|
|
|
|
if (file->virtual) return EINA_FALSE;
|
|
|
|
if (!GetFileAttributesEx(file->filename, GetFileExInfoStandard, &fad))
|
|
return EINA_FALSE;
|
|
|
|
length.u.LowPart = fad.nFileSizeLow;
|
|
length.u.HighPart = fad.nFileSizeHigh;
|
|
mtime.u.LowPart = fad.ftLastWriteTime.dwLowDateTime;
|
|
mtime.u.HighPart = fad.ftLastWriteTime.dwHighDateTime;
|
|
|
|
if (file->length != length.QuadPart)
|
|
{
|
|
eina_file_flush(file, length.QuadPart);
|
|
r = EINA_TRUE;
|
|
}
|
|
|
|
file->length = length.QuadPart;
|
|
file->mtime = mtime.QuadPart;
|
|
|
|
return r;
|
|
}
|
|
|
|
EAPI Eina_File *
|
|
eina_file_open(const char *path, Eina_Bool shared)
|
|
{
|
|
Eina_File *file;
|
|
Eina_File *n;
|
|
Eina_Stringshare *filename;
|
|
HANDLE handle;
|
|
WIN32_FILE_ATTRIBUTE_DATA fad;
|
|
ULARGE_INTEGER length;
|
|
ULARGE_INTEGER mtime;
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(path, NULL);
|
|
|
|
filename = eina_file_sanitize(path);
|
|
if (!filename) return NULL;
|
|
|
|
/* FIXME: how to emulate shm_open ? Just OpenFileMapping ? */
|
|
#if 0
|
|
if (shared)
|
|
handle = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ,
|
|
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_READONLY,
|
|
NULL);
|
|
else
|
|
#endif
|
|
handle = CreateFile(filename,
|
|
GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
|
|
NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
|
|
NULL);
|
|
|
|
if (handle == INVALID_HANDLE_VALUE)
|
|
{
|
|
WRN("eina_file_open() failed with file %s: %s",
|
|
filename, evil_last_error_get());
|
|
goto free_file;
|
|
}
|
|
|
|
if (!GetFileAttributesEx(filename, GetFileExInfoStandard, &fad))
|
|
goto close_handle;
|
|
|
|
length.u.LowPart = fad.nFileSizeLow;
|
|
length.u.HighPart = fad.nFileSizeHigh;
|
|
mtime.u.LowPart = fad.ftLastWriteTime.dwLowDateTime;
|
|
mtime.u.HighPart = fad.ftLastWriteTime.dwHighDateTime;
|
|
|
|
eina_lock_take(&_eina_file_lock_cache);
|
|
|
|
file = eina_hash_find(_eina_file_cache, filename);
|
|
if (file &&
|
|
(file->mtime != mtime.QuadPart || file->length != length.QuadPart))
|
|
{
|
|
file->delete_me = EINA_TRUE;
|
|
eina_hash_del(_eina_file_cache, file->filename, file);
|
|
file = NULL;
|
|
}
|
|
|
|
if (!file)
|
|
{
|
|
n = malloc(sizeof(Eina_File));
|
|
if (!n)
|
|
{
|
|
eina_lock_release(&_eina_file_lock_cache);
|
|
goto close_handle;
|
|
}
|
|
|
|
memset(n, 0, sizeof(Eina_File));
|
|
n->filename = filename;
|
|
n->map = eina_hash_new(EINA_KEY_LENGTH(eina_file_map_key_length),
|
|
EINA_KEY_CMP(eina_file_map_key_cmp),
|
|
EINA_KEY_HASH(eina_file_map_key_hash),
|
|
EINA_FREE_CB(_eina_file_map_close),
|
|
3);
|
|
n->rmap = eina_hash_pointer_new(NULL);
|
|
n->global_map = MAP_FAILED;
|
|
n->length = length.QuadPart;
|
|
n->mtime = mtime.QuadPart;
|
|
n->handle = handle;
|
|
n->shared = shared;
|
|
eina_lock_new(&n->lock);
|
|
eina_hash_direct_add(_eina_file_cache, n->filename, n);
|
|
|
|
EINA_MAGIC_SET(n, EINA_FILE_MAGIC);
|
|
}
|
|
else
|
|
{
|
|
CloseHandle(handle);
|
|
|
|
n = file;
|
|
}
|
|
eina_lock_take(&n->lock);
|
|
n->refcount++;
|
|
eina_lock_release(&n->lock);
|
|
|
|
eina_lock_release(&_eina_file_lock_cache);
|
|
|
|
return n;
|
|
|
|
close_handle:
|
|
CloseHandle(handle);
|
|
free_file:
|
|
WRN("Could not open file [%s].", filename);
|
|
eina_stringshare_del(filename);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eina_file_unlink(const char *pathname)
|
|
{
|
|
Eina_Stringshare *unlink_path = eina_file_sanitize(pathname);
|
|
Eina_File *file = eina_hash_find(_eina_file_cache, unlink_path);
|
|
Eina_Bool r = EINA_FALSE;
|
|
|
|
if (file)
|
|
{
|
|
if (file->handle != INVALID_HANDLE_VALUE)
|
|
{
|
|
CloseHandle(file->handle);
|
|
|
|
file->handle = CreateFile(unlink_path,
|
|
GENERIC_READ,
|
|
FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
NULL,
|
|
OPEN_EXISTING,
|
|
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_DELETE_ON_CLOSE,
|
|
NULL);
|
|
|
|
if (file->handle != INVALID_HANDLE_VALUE)
|
|
{
|
|
CloseHandle(file->handle);
|
|
file->handle = INVALID_HANDLE_VALUE;
|
|
r = EINA_TRUE;
|
|
goto finish;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (unlink(unlink_path) >= 0) r = EINA_TRUE;
|
|
eina_stringshare_del(unlink_path);
|
|
|
|
finish:
|
|
return r;
|
|
}
|
|
|
|
|
|
EAPI Eina_Iterator *eina_file_xattr_get(Eina_File *file EINA_UNUSED)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
EAPI Eina_Iterator *eina_file_xattr_value_get(Eina_File *file EINA_UNUSED)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
EAPI void
|
|
eina_file_map_populate(Eina_File *file EINA_UNUSED, Eina_File_Populate rule EINA_UNUSED, const void *map EINA_UNUSED,
|
|
unsigned long int offset EINA_UNUSED, unsigned long int length EINA_UNUSED)
|
|
{
|
|
}
|
|
|
|
EAPI void *
|
|
eina_file_map_all(Eina_File *file, Eina_File_Populate rule EINA_UNUSED)
|
|
{
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(file, NULL);
|
|
|
|
if (file->virtual) return eina_file_virtual_map_all(file);
|
|
|
|
eina_lock_take(&file->lock);
|
|
if (file->global_map == MAP_FAILED)
|
|
{
|
|
DWORD max_size_high;
|
|
DWORD max_size_low;
|
|
HANDLE fm;
|
|
|
|
|
|
max_size_high = (DWORD)((file->length & 0xffffffff00000000ULL) >> 32);
|
|
max_size_low = (DWORD)(file->length & 0x00000000ffffffffULL);
|
|
fm = CreateFileMapping(file->handle, NULL, PAGE_READONLY,
|
|
max_size_high, max_size_low, NULL);
|
|
if (!fm)
|
|
{
|
|
eina_lock_release(&file->lock);
|
|
return NULL;
|
|
}
|
|
|
|
file->global_map = MapViewOfFile(fm, FILE_MAP_READ,
|
|
0, 0, file->length);
|
|
CloseHandle(fm);
|
|
if (!file->global_map)
|
|
file->global_map = MAP_FAILED;
|
|
}
|
|
|
|
if (file->global_map != MAP_FAILED)
|
|
{
|
|
file->global_refcount++;
|
|
eina_lock_release(&file->lock);
|
|
return file->global_map;
|
|
}
|
|
|
|
eina_lock_release(&file->lock);
|
|
return NULL;
|
|
}
|
|
|
|
EAPI void *
|
|
eina_file_map_new(Eina_File *file, Eina_File_Populate rule,
|
|
unsigned long int offset, unsigned long int length)
|
|
{
|
|
Eina_File_Map *map;
|
|
unsigned long int key[2];
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(file, NULL);
|
|
|
|
if (offset > file->length)
|
|
return NULL;
|
|
if (offset + length > file->length)
|
|
return NULL;
|
|
|
|
if (offset == 0 && length == file->length)
|
|
return eina_file_map_all(file, rule);
|
|
|
|
if (file->virtual)
|
|
return eina_file_virtual_map_new(file, offset, length);
|
|
|
|
key[0] = offset;
|
|
key[1] = length;
|
|
|
|
eina_lock_take(&file->lock);
|
|
|
|
map = eina_hash_find(file->map, &key);
|
|
if (!map)
|
|
{
|
|
HANDLE fm;
|
|
map = malloc(sizeof (Eina_File_Map));
|
|
if (!map)
|
|
{
|
|
eina_lock_release(&file->lock);
|
|
return NULL;
|
|
}
|
|
|
|
/* the length parameter is unsigned long, that is a DWORD */
|
|
/* so the max size high parameter of CreateFileMapping is 0 */
|
|
fm = CreateFileMapping(file->handle, NULL, PAGE_READONLY,
|
|
0, (DWORD)length, NULL);
|
|
if (!fm)
|
|
return NULL;
|
|
|
|
map->map = MapViewOfFile(fm, FILE_MAP_READ,
|
|
offset & 0xffff0000,
|
|
offset & 0x0000ffff,
|
|
length);
|
|
CloseHandle(fm);
|
|
if (!map->map)
|
|
map->map = MAP_FAILED;
|
|
|
|
map->offset = offset;
|
|
map->length = length;
|
|
map->refcount = 0;
|
|
|
|
if (map->map == MAP_FAILED)
|
|
{
|
|
free(map);
|
|
eina_lock_release(&file->lock);
|
|
return NULL;
|
|
}
|
|
|
|
eina_hash_add(file->map, &key, map);
|
|
eina_hash_direct_add(file->rmap, map->map, map);
|
|
}
|
|
|
|
map->refcount++;
|
|
|
|
eina_lock_release(&file->lock);
|
|
|
|
return map->map;
|
|
}
|
|
|
|
EAPI void
|
|
eina_file_map_free(Eina_File *file, void *map)
|
|
{
|
|
EINA_SAFETY_ON_NULL_RETURN(file);
|
|
|
|
if (file->virtual)
|
|
{
|
|
eina_file_virtual_map_free(file, map);
|
|
return;
|
|
}
|
|
|
|
eina_lock_take(&file->lock);
|
|
|
|
if (file->global_map == map)
|
|
{
|
|
file->global_refcount--;
|
|
|
|
if (file->global_refcount > 0) goto on_exit;
|
|
|
|
UnmapViewOfFile(file->global_map);
|
|
file->global_map = MAP_FAILED;
|
|
}
|
|
else
|
|
{
|
|
eina_file_common_map_free(file, map, _eina_file_map_close);
|
|
}
|
|
|
|
on_exit:
|
|
eina_lock_release(&file->lock);
|
|
}
|
|
|
|
EAPI Eina_Bool
|
|
eina_file_map_faulted(Eina_File *file, void *map EINA_UNUSED)
|
|
{
|
|
#warning "We need to handle access to corrupted memory mapped file."
|
|
if (file->virtual) return EINA_FALSE;
|
|
/*
|
|
* FIXME:
|
|
* vc++ : http://msdn.microsoft.com/en-us/library/windows/desktop/aa366801%28v=vs.85%29.aspx
|
|
*
|
|
* mingw-w64 :
|
|
* - 32 bits : there is a way to implement __try/__except/__final in C.
|
|
* see excpt.h header for 32-bits
|
|
* - 64 bits : some inline assembly required for it. See as example our
|
|
* startup-code in WinMainCRTStartup() in crtexe.c :
|
|
{
|
|
int ret = 255;
|
|
#ifdef __SEH__
|
|
asm ("\t.l_startw:\n"
|
|
"\t.seh_handler __C_specific_handler, @except\n"
|
|
"\t.seh_handlerdata\n"
|
|
"\t.long 1\n"
|
|
"\t.rva .l_startw, .l_endw, _gnu_exception_handler ,.l_endw\n"
|
|
"\t.text"
|
|
);
|
|
#endif
|
|
mingw_app_type = 1;
|
|
__security_init_cookie ();
|
|
ret = __tmainCRTStartup ();
|
|
#ifdef __SEH__
|
|
asm ("\tnop\n"
|
|
"\t.l_endw: nop\n");
|
|
#endif
|
|
return ret;
|
|
}
|
|
*/
|
|
return EINA_FALSE;
|
|
}
|
|
|
|
EAPI int
|
|
eina_file_statat(void *container EINA_UNUSED, Eina_File_Direct_Info *info, Eina_Stat *st)
|
|
{
|
|
struct __stat64 buf;
|
|
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(info, -1);
|
|
EINA_SAFETY_ON_NULL_RETURN_VAL(st, -1);
|
|
|
|
if (stat64(info->path, &buf))
|
|
{
|
|
info->type = EINA_FILE_UNKNOWN;
|
|
return -1;
|
|
}
|
|
|
|
if (info->type == EINA_FILE_UNKNOWN)
|
|
{
|
|
if (S_ISREG(buf.st_mode))
|
|
info->type = EINA_FILE_REG;
|
|
else if (S_ISDIR(buf.st_mode))
|
|
info->type = EINA_FILE_DIR;
|
|
else
|
|
info->type = EINA_FILE_UNKNOWN;
|
|
}
|
|
|
|
st->dev = buf.st_dev;
|
|
st->ino = buf.st_ino;
|
|
st->mode = buf.st_mode;
|
|
st->nlink = buf.st_nlink;
|
|
st->uid = buf.st_uid;
|
|
st->gid = buf.st_gid;
|
|
st->rdev = buf.st_rdev;
|
|
st->size = buf.st_size;
|
|
st->blksize = 0;
|
|
st->blocks = 0;
|
|
st->atime = buf.st_atime;
|
|
st->mtime = buf.st_mtime;
|
|
st->ctime = buf.st_ctime;
|
|
st->atimensec = 0;
|
|
st->mtimensec = 0;
|
|
st->ctimensec = 0;
|
|
|
|
return 0;
|
|
}
|