forked from enlightenment/efl
parent
49a33976cc
commit
c6cb315e35
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@ -156,6 +156,13 @@ EAPI Eio_File *eio_file_stat_ls(const char *dir,
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Eio_Error_Cb error_cb,
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const void *data);
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EAPI Eio_File *eio_dir_stat_ls(const char *dir,
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Eio_Filter_Direct_Cb filter_cb,
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Eio_Main_Direct_Cb main_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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EAPI Eio_File *eio_file_direct_stat(const char *path,
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Eio_Stat_Cb done_cb,
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Eio_Error_Cb error_cb,
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@ -97,6 +97,87 @@
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* @endcode
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*/
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/**
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* @page tutorial_dir_stat_ls eio_dir_stat_ls() tutorial
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*
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* @li The filter callback, which allow or not a file to be seen
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* by the main loop handler. This callback run in a separated thread.
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* @li The main callback, which receive in the main loop all the file
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* that are allowed by the filter. If you are updating a user interface
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* it make sense to delay the insertion a little, so you get a chance
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* to update the canvas for a bunch of file instead of one by one.
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* @li The end callback, which is called in the main loop when the
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* content of the directory has been correctly scanned and all the
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* file notified to the main loop.
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* @li The error callback, which is called if an error occured or
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* if the listing was cancelled during it's run. You can then retrieve
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* the error type as an errno error.
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*
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* Here is a simple example that implement a stupidly simple replacement for find:
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*
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* @code
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* #include <Ecore.h>
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* #include <Eio.h>
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*
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* static Eina_Bool
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* _test_filter_cb(void *data, Eio_File *handler, const Eina_File_Direct_Info *info)
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* {
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* fprintf(stderr, "ACCEPTING: %s\n", info->path);
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* return EINA_TRUE;
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* }
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*
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* static void
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* _test_main_cb(void *data, Eio_File *handler, const Eina_File_Direct_Info *info)
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* {
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* fprintf(stderr, "PROCESS: %s\n", info->path);
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* }
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*
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* static void
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* _test_done_cb(void *data, Eio_File *handler)
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* {
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* printf("ls done\n");
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* ecore_main_loop_quit();
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* }
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*
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* static void
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* _test_error_cb(void *data, Eio_File *handler, int error)
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* {
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* fprintf(stderr, "error: [%s]\n", strerror(error));
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* ecore_main_loop_quit();
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* }
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*
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* int
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* main(int argc, char **argv)
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* {
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* Eio_File *cp;
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*
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* if (argc != 2)
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* {
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* fprintf(stderr, "eio_ls directory\n");
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* return -1;
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* }
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*
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* ecore_init();
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* eio_init();
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*
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* cp = eio_dir_stat_ls(argv[1],
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* _test_filter_cb,
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* _test_main_cb,
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* _test_done_cb,
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* _test_error_cb,
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* NULL);
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*
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* ecore_main_loop_begin();
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*
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* eio_shutdown();
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* ecore_shutdown();
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*
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* return 0;
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* }
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*
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* @endcode
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*/
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#include "eio_private.h"
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#include "Eio.h"
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@ -113,64 +194,84 @@ 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_recursive_progress(Eio_Dir_Copy *copy, Eio_File *handler, const Eina_File_Direct_Info *info)
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{
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switch (info->type)
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{
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case EINA_FILE_UNKNOWN:
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eio_file_thread_error(©->progress.common, handler->thread);
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return EINA_FALSE;
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case EINA_FILE_LNK:
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copy->links = eina_list_append(copy->links, eina_stringshare_add(info->path));
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break;
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case EINA_FILE_DIR:
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copy->dirs = eina_list_append(copy->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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return EINA_TRUE;
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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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_eio_file_recursiv_ls(Ecore_Thread *thread,
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Eio_File *common,
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Eio_Filter_Direct_Cb filter_cb,
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void *data,
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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_File_Direct_Info *info;
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Eina_Iterator *it = NULL;
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Eina_List *l;
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Eina_List *dirs = NULL;
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const char *dir;
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struct stat buffer;
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it = eina_file_stat_ls(target);
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if (!it)
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{
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eio_file_thread_error(©->progress.common, thread);
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eio_file_thread_error(common, thread);
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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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Eina_Bool filter = EINA_TRUE;
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struct stat buffer;
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switch (info->type)
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{
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case EINA_FILE_UNKNOWN:
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eio_file_thread_error(©->progress.common, thread);
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goto on_error;
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case EINA_FILE_DIR:
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if (lstat(info->path, &buffer) != 0)
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goto on_error;
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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 /* It's a link we should not forget about it */
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copy->links = eina_list_append(copy->links, eina_stringshare_add(info->path));
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break;
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if (S_ISLNK(buffer.st_mode))
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info->type = EINA_FILE_LNK;
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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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filter = filter_cb(data, common, info);
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if (filter && info->type == EINA_FILE_DIR)
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dirs = eina_list_append(dirs, eina_stringshare_add(info->path));
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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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it = NULL;
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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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if (!_eio_file_recursiv_ls(thread, common, filter_cb, data, dir))
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goto on_error;
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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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if (it) 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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@ -178,6 +279,18 @@ _eio_dir_recursiv_ls(Ecore_Thread *thread, Eio_Dir_Copy *copy, const char *targe
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return EINA_FALSE;
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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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if (!_eio_file_recursiv_ls(thread, ©->progress.common,
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(Eio_Filter_Direct_Cb) _eio_dir_recursive_progress,
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copy, target))
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return EINA_FALSE;
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return EINA_TRUE;
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}
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static Eina_Bool
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_eio_dir_init(Ecore_Thread *thread,
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off_t *step, off_t *count,
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@ -314,7 +427,7 @@ _eio_dir_link(Ecore_Thread *thread, Eio_Dir_Copy *order,
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}
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/* create the link */
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if (symlink(oldpath, newpath) != 0)
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if (symlink(newpath, oldpath) != 0)
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goto on_error;
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/* inform main thread */
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@ -698,6 +811,78 @@ _eio_dir_rmrf_heavy(void *data, Ecore_Thread *thread)
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return;
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}
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static Eina_Bool
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_eio_dir_stat_find_forward(Eio_File_Direct_Ls *async,
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Eio_File *handler,
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const Eina_File_Direct_Info *info)
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{
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Eina_Bool filter = EINA_TRUE;
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if (async->filter_cb)
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{
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filter = async->filter_cb((void*) async->ls.common.data, &async->ls.common, info);
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}
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if (filter)
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{
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Eina_File_Direct_Info *send;
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send = eio_direct_info_malloc();
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if (!send) return EINA_FALSE;
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memcpy(send, info, sizeof (Eina_File_Direct_Info));
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ecore_thread_feedback(handler->thread, send);
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}
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return EINA_TRUE;
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}
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static void
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_eio_dir_stat_find_heavy(void *data, Ecore_Thread *thread)
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{
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Eio_File_Direct_Ls *async = data;
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async->ls.common.thread = thread;
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_eio_file_recursiv_ls(thread, &async->ls.common,
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(Eio_Filter_Direct_Cb) _eio_dir_stat_find_forward,
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async, async->ls.directory);
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}
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static void
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_eio_dir_stat_find_notify(void *data, Ecore_Thread *thread __UNUSED__, void *msg_data)
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{
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Eio_File_Direct_Ls *async = data;
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Eina_File_Direct_Info *info = msg_data;
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async->main_cb((void*) async->ls.common.data, &async->ls.common, info);
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eio_direct_info_free(info);
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}
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static void
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_eio_dir_stat_done(void *data, Ecore_Thread *thread __UNUSED__)
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{
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Eio_File_Ls *async = data;
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async->common.done_cb((void*) async->common.data, &async->common);
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eina_stringshare_del(async->directory);
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free(async);
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}
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static void
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_eio_dir_stat_error(void *data, Ecore_Thread *thread __UNUSED__)
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{
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Eio_File_Ls *async = data;
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eio_file_error(&async->common);
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eina_stringshare_del(async->directory);
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free(async);
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}
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/**
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* @endcond
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*/
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@ -873,6 +1058,54 @@ eio_dir_unlink(const char *path,
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return &rmrf->progress.common;
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}
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/**
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* @brief List the content of a directory and all it's sub-content asynchronously
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* @param dir The directory to list.
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* @param filter_cb Callback called from another thread.
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* @param main_cb Callback called from the main loop for each accepted file.
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* @param done_cb Callback called from the main loop when the content of the directory has been listed.
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* @param error_cb Callback called from the main loop when the directory could not be opened or listing content has been canceled.
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* @param data Data passed to callback and not modified at all by eio_dir_stat_find.
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* @return A reference to the IO operation.
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*
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* eio_dir_stat_find() run eina_file_stat_ls() recursivly in a separated thread using
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* ecore_thread_feedback_run. This prevent any lock in your apps.
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*/
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EAPI Eio_File *
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eio_dir_stat_ls(const char *dir,
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Eio_Filter_Direct_Cb filter_cb,
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Eio_Main_Direct_Cb main_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_File_Direct_Ls *async;
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EINA_SAFETY_ON_NULL_RETURN_VAL(dir, NULL);
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EINA_SAFETY_ON_NULL_RETURN_VAL(main_cb, NULL);
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EINA_SAFETY_ON_NULL_RETURN_VAL(done_cb, NULL);
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EINA_SAFETY_ON_NULL_RETURN_VAL(error_cb, NULL);
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async = malloc(sizeof(Eio_File_Direct_Ls));
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EINA_SAFETY_ON_NULL_RETURN_VAL(async, NULL);
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async->filter_cb = filter_cb;
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async->main_cb = main_cb;
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async->ls.directory = eina_stringshare_add(dir);
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if (!eio_long_file_set(&async->ls.common,
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done_cb,
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error_cb,
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data,
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_eio_dir_stat_find_heavy,
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_eio_dir_stat_find_notify,
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_eio_dir_stat_done,
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_eio_dir_stat_error))
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return NULL;
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return &async->ls.common;
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}
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/**
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* @}
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*/
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@ -727,7 +727,7 @@ eio_file_direct_ls(const char *dir,
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* @param main_cb Callback called from the main loop for each accepted file.
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* @param done_cb Callback called from the main loop when the content of the directory has been listed.
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* @param error_cb Callback called from the main loop when the directory could not be opened or listing content has been canceled.
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* @param data Data passed to callback and not modified at all by eio_file_direct_ls.
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* @param data Data passed to callback and not modified at all by eio_file_stat_ls.
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* @return A reference to the IO operation.
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*
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* eio_file_stat_ls() run eina_file_stat_ls() in a separated thread using
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