c - GSList of structs -



c - GSList of structs -

i read this thread, helped me figure out dereferencing properly, went , created situation post's answer's author said avoid, haha.

what i'm trying accomplish creation of basic file browser (per book i'm reading). code below supposed reading through directory contents , filling details i've chosen struct. struct appended data fellow member of gslist. list used populate row info gtktreeview, , forth.

typedef struct { gchar *name, *size, *date_modified; }fileproperties; //... static void refresh_directory_listing(gtktreeview *treeview) { gtkliststore *store = gtk_list_store_new(num_columns, g_type_string, g_type_string, g_type_string); gslist *files = null; gtktreeiter iter; get_current_directory_contents(&files); for(gslist *current = files; current != null; current = g_slist_next(current)) { gtk_list_store_append(store, &iter); gtk_list_store_set(store, &iter, file_name, ((fileproperties *) current->data)->name, file_size, ((fileproperties *) current->data)->size, date_modified, ((fileproperties *) current->data)->date_modified, -1); } gtk_tree_view_set_model(treeview, gtk_tree_model(store)); g_object_unref(store); g_slist_free(files); } static void get_current_directory_contents(gslist **files) { gdir *current_dir = g_dir_open(g_get_current_dir(), 0, null); gchar *file_name = null; fileproperties *file = g_malloc(sizeof(fileproperties)); while((file_name = (gchar *) g_dir_read_name(current_dir))) { memset(file, 0, sizeof(fileproperties)); file->name = g_strdup(file_name); file->size = g_strdup_printf("nope"); file->date_modified = g_strdup_printf("nuh uh"); *files = g_slist_append(*files, file); } g_free(file); }

working understand why file names homecoming blank , has same memory address, it's obvious me g_slist_append() handing fileproperties construction on directly. so, references same struct keeps getting overwritten , freed. whoops.

my question this: appropriate way hand gslist of struct's , forth between functions?

you allocating one fileproperties construction before while loop, , alter contents of single struct, , append many times.

you need allocate one fileproperties construction instance each file properties want store.

move allocation within loop, replacing (spurious) memset():

while((file_name = (gchar *) g_dir_read_name(current_dir))) { fileproperties *file = g_malloc(sizeof *file); /* rest of loop here ... */ }

c struct glib

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