* eio: add eio_dir_copy.
Little example on how to use it :
#include <Ecore.h>
#include <Eio.h>
static void
_test_notify_cb(void *data, const Eio_Progress *info)
{
switch (info->op)
{
case EIO_FILE_COPY:
printf("[%s] %f%%\n", info->dest, info->percent);
break;
case EIO_DIR_COPY:
printf("global [%li/%li] %f%%\n", info->current, info->max, info->percent);
break;
}
}
static void
_test_done_cb(void *data)
{
printf("copy done\n");
ecore_main_loop_quit();
}
static void
_test_error_cb(int error, void *data)
{
fprintf(stderr, "error: [%s]\n", strerror(error));
ecore_main_loop_quit();
}
int
main(int argc, char **argv)
{
Eio_File *cp;
if (argc != 3)
{
fprintf(stderr, "eio_cp source_file destination_file\n");
return -1;
}
ecore_init();
eio_init();
cp = eio_dir_copy(argv[1], argv[2],
_test_notify_cb,
_test_done_cb,
_test_error_cb,
NULL);
ecore_main_loop_begin();
eio_shutdown();
ecore_shutdown();
return 0;
}
NOTE: be aware that it's your duty to provide the "right target".
Meaning that copying to '.' will copy the content directly inside
'.' and not in a subdirectory.
SVN revision: 53069
This commit is contained in:
Cedric BAIL
parent
eddca25d99
commit
b3d7e3423f
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@ -12,7 +12,8 @@ includesdir = $(includedir)/eio-@VMAJ@
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libeio_la_SOURCES = \
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eio_file.c \
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eio_main.c \
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eio_single.c
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eio_single.c \
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eio_dir.c
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libeio_la_LIBADD = @EIO_LIBS@
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libeio_la_LDFLAGS = -no-undefined @lt_enable_auto_import@ -version-info @version_info@ @release_info@
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@ -0,0 +1,328 @@
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/* EIO - EFL data type library
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* Copyright (C) 2010 Enlightenment Developers:
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* Cedric Bail <cedric.bail@free.fr>
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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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#define _FILE_OFFSET_BITS 64
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#define _GNU_SOURCE
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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 <stdio.h>
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#include <string.h>
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#ifndef _MSC_VER
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# include <unistd.h>
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# include <libgen.h>
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#endif
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#ifdef HAVE_FEATURES_H
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# include <features.h>
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#endif
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#include <ctype.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include "eio_private.h"
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#include "Eio.h"
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static int
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eio_strcmp(const void *a, const void *b)
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{
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return strcmp(a, b);
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}
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static Eina_Bool
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_eio_dir_recursiv_ls(Ecore_Thread *thread, Eio_Dir_Copy *copy, const char *target)
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{
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const Eina_File_Direct_Info *info;
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Eina_Iterator *it;
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Eina_List *dirs = NULL;
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Eina_List *l;
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const char *dir;
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struct stat buffer;
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it = eina_file_direct_ls(target);
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if (!it)
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{
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eio_file_thread_error(©->progress.common);
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return EINA_FALSE;
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}
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EINA_ITERATOR_FOREACH(it, info)
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{
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fprintf(stderr, "entry: %s\n", info->path);
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switch (info->dirent->d_type)
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{
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case DT_UNKNOWN:
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if (stat(info->path, &buffer) != 0)
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{
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eio_file_thread_error(©->progress.common);
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goto on_error;
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}
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if (S_ISDIR(buffer.st_mode))
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dirs = eina_list_append(dirs, eina_stringshare_add(info->path));
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else
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copy->files = eina_list_append(copy->files, eina_stringshare_add(info->path));
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break;
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case DT_DIR:
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dirs = eina_list_append(dirs, eina_stringshare_add(info->path));
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break;
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default:
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copy->files = eina_list_append(copy->files, eina_stringshare_add(info->path));
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break;
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}
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if (ecore_thread_check(thread))
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goto on_error;
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}
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eina_iterator_free(it);
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EINA_LIST_FOREACH(dirs, l, dir)
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if (!_eio_dir_recursiv_ls(thread, copy, dir))
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{
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EINA_LIST_FREE(dirs, dir)
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eina_stringshare_del(dir);
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return EINA_FALSE;
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}
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copy->dirs = eina_list_merge(copy->dirs, dirs);
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return EINA_TRUE;
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on_error:
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eina_iterator_free(it);
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EINA_LIST_FREE(dirs, dir)
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eina_stringshare_del(dir);
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return EINA_FALSE;
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}
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static void
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_eio_dir_copy_heavy(Ecore_Thread *thread, void *data)
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{
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Eio_Dir_Copy *copy = data;
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const char *file = NULL;
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const char *dir = NULL;
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Eio_File_Progress file_copy;
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char target[PATH_MAX];
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struct stat buffer;
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int length_source;
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int length_dest;
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off_t count;
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off_t step;
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/* list all the content that should be copied */
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if (!_eio_dir_recursiv_ls(thread, copy, copy->progress.source))
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return ;
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/* notify main thread of the amount of work todo */
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step = 0;
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count = eina_list_count(copy->files) + eina_list_count(copy->dirs);
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eio_progress_send(thread, ©->progress, step, count);
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/* sort the content, so we create the directory in the right order */
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copy->dirs = eina_list_sort(copy->dirs, -1, eio_strcmp);
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copy->files = eina_list_sort(copy->files, -1, eio_strcmp);
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/* prepare stuff */
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length_source = eina_stringshare_strlen(copy->progress.source);
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length_dest = eina_stringshare_strlen(copy->progress.dest);
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memcpy(&file_copy, ©->progress, sizeof (Eio_File_Progress));
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file_copy.op = EIO_FILE_COPY;
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file_copy.source = NULL;
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file_copy.dest = NULL;
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/* create destination dir if not available */
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if (stat(copy->progress.dest, &buffer) != 0)
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{
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if (stat(copy->progress.source, &buffer) != 0)
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goto on_error;
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if (mkdir(copy->progress.dest, buffer.st_mode) != 0)
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goto on_error;
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}
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/* create all directory */
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EINA_LIST_FREE(copy->dirs, dir)
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{
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/* build target dir path */
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strcpy(target, copy->progress.dest);
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target[length_dest] = '/';
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strcpy(target + length_dest + 1, dir + length_source);
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/* stat the original file for mode info */
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/* FIXME: in some case we already did a stat call, so would be nice to reuse previous result here */
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/* FIXME: apply mode later so that readonly could be copied and property will be set correctly */
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if (stat(dir, &buffer) != 0)
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goto on_error;
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/* create the directory */
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if (mkdir(target, buffer.st_mode) != 0)
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goto on_error;
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step++;
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eio_progress_send(thread, ©->progress, step, count);
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if (ecore_thread_check(thread))
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goto on_error;
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eina_stringshare_del(dir);
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}
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dir = NULL;
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/* Copy all files */
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EINA_LIST_FREE(copy->files, file)
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{
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/* build target dir path */
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strcpy(target, copy->progress.dest);
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target[length_dest] = '/';
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strcpy(target + length_dest + 1, file + length_source);
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file_copy.source = file;
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file_copy.dest = eina_stringshare_add(target);
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if (!eio_file_copy_do(thread, &file_copy))
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{
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copy->progress.common.error = file_copy.common.error;
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goto on_error;
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}
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step++;
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eio_progress_send(thread, ©->progress, step, count);
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if (ecore_thread_check(thread))
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goto on_error;
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eina_stringshare_del(file_copy.dest);
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eina_stringshare_del(file);
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}
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file_copy.dest = NULL;
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file = NULL;
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on_error:
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/* cleanup the mess */
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if (file_copy.dest) eina_stringshare_del(file_copy.dest);
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if (dir) eina_stringshare_del(dir);
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if (file) eina_stringshare_del(file);
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EINA_LIST_FREE(copy->files, file)
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eina_stringshare_del(file);
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EINA_LIST_FREE(copy->dirs, dir)
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eina_stringshare_del(dir);
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if (!ecore_thread_check(thread))
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eio_progress_send(thread, ©->progress, count, count);
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return ;
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}
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static void
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_eio_dir_copy_notify( __UNUSED__ Ecore_Thread *thread, void *msg_data, void *data)
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{
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Eio_Dir_Copy *copy = data;
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Eio_Progress *progress = msg_data;
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eio_progress_cb(progress, ©->progress);
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}
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static void
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_eio_dir_copy_end(void *data)
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{
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Eio_Dir_Copy *copy = data;
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copy->progress.common.done_cb((void*) copy->progress.common.data);
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eina_stringshare_del(copy->progress.source);
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eina_stringshare_del(copy->progress.dest);
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free(copy);
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}
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static void
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_eio_dir_copy_error(void *data)
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{
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Eio_Dir_Copy *copy = data;
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eio_file_error(©->progress.common);
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eina_stringshare_del(copy->progress.source);
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eina_stringshare_del(copy->progress.dest);
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free(copy);
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}
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/**
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* @brief Copy a directory and it's content asynchronously
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* @param source Should be the name of the directory to copy the data from.
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* @param dest Should be the name of the directory to copy the data to.
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* @param progress_cb Callback called to know the progress of the copy.
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* @param done_cb Callback called when the copy is done.
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* @param error_cb Callback called when something goes wrong.
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* @param data Private data given to callback.
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*
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* This function will copy a directory and all it's content from source to dest.
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* It will try to use splice if possible, if not it will fallback to mmap/write.
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* It will try to preserve access right, but not user/group identification.
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*/
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EAPI Eio_File *
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eio_dir_copy(const char *source,
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const char *dest,
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Eio_Progress_Cb progress_cb,
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Eio_Done_Cb done_cb,
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Eio_Error_Cb error_cb,
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const void *data)
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{
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Eio_Dir_Copy *copy = NULL;
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if (!source || !dest || !done_cb || !error_cb)
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return NULL;
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copy = malloc(sizeof (Eio_Dir_Copy));
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if (!copy) return NULL;
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copy->progress.op = EIO_DIR_COPY;
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copy->progress.progress_cb = progress_cb;
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copy->progress.source = eina_stringshare_add(source);
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copy->progress.dest = eina_stringshare_add(dest);
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copy->files = NULL;
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if (!eio_long_file_set(©->progress.common,
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done_cb,
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error_cb,
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data,
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_eio_dir_copy_heavy,
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_eio_dir_copy_notify,
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_eio_dir_copy_end,
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_eio_dir_copy_error))
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return NULL;
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return ©->progress.common;
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}
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