notmuch/bindings/ruby/directory.c
Felipe Contreras 5f49e3421f ruby: new notmuch_rb_object_destroy() helper
The struct used to store the types (rb_data_type_t) contains a "data"
field where we can store whatever we want. I use that field to store a
pointer to the corresponding destroy function. For example
notmuch_rb_database_type contains a pointer to notmuch_database_destroy.

I cast that pointer as a notmuch_status_t (func*)(void *) and call
that function passing the internal object (e.g. notmuch_database_t).

Using the rb_data_type_t data we can call the correct notmuch destroy
function.

Therefore this:

  ret = ((notmuch_status_t (*)(void *)) type->data) (nm_object);

Is effectively the same as this:

  ret = notmuch_database_destroy (database);

The advantage of doing it this way is that much less code is necesary
since each rb_data_type_t has the corresponding destroy function stored
in it.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
2021-05-17 07:25:14 -03:00

110 lines
2.8 KiB
C

/* The Ruby interface to the notmuch mail library
*
* Copyright © 2010, 2011 Ali Polatel
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see https://www.gnu.org/licenses/ .
*
* Author: Ali Polatel <alip@exherbo.org>
*/
#include "defs.h"
/*
* call-seq: DIR.destroy! => nil
*
* Destroys the directory, freeing all resources allocated for it.
*/
VALUE
notmuch_rb_directory_destroy (VALUE self)
{
notmuch_rb_object_destroy (self, &notmuch_rb_directory_type);
return Qnil;
}
/*
* call-seq: DIR.mtime => fixnum
*
* Returns the mtime of the directory or +0+ if no mtime has been previously
* stored.
*/
VALUE
notmuch_rb_directory_get_mtime (VALUE self)
{
notmuch_directory_t *dir;
Data_Get_Notmuch_Directory (self, dir);
return UINT2NUM (notmuch_directory_get_mtime (dir));
}
/*
* call-seq: DIR.mtime=(fixnum) => nil
*
* Store an mtime within the database for the directory object.
*/
VALUE
notmuch_rb_directory_set_mtime (VALUE self, VALUE mtimev)
{
notmuch_status_t ret;
notmuch_directory_t *dir;
Data_Get_Notmuch_Directory (self, dir);
if (!FIXNUM_P (mtimev))
rb_raise (rb_eTypeError, "First argument not a fixnum");
ret = notmuch_directory_set_mtime (dir, FIX2UINT (mtimev));
notmuch_rb_status_raise (ret);
return Qtrue;
}
/*
* call-seq: DIR.child_files => FILENAMES
*
* Return a Notmuch::FileNames object, which is an +Enumerable+ listing all the
* filenames of messages in the database within the given directory.
*/
VALUE
notmuch_rb_directory_get_child_files (VALUE self)
{
notmuch_directory_t *dir;
notmuch_filenames_t *fnames;
Data_Get_Notmuch_Directory (self, dir);
fnames = notmuch_directory_get_child_files (dir);
return Data_Wrap_Notmuch_Object (notmuch_rb_cFileNames, &notmuch_rb_filenames_type, fnames);
}
/*
* call-seq: DIR.child_directories => FILENAMES
*
* Return a Notmuch::FileNames object, which is an +Enumerable+ listing all the
* directories in the database within the given directory.
*/
VALUE
notmuch_rb_directory_get_child_directories (VALUE self)
{
notmuch_directory_t *dir;
notmuch_filenames_t *fnames;
Data_Get_Notmuch_Directory (self, dir);
fnames = notmuch_directory_get_child_directories (dir);
return Data_Wrap_Notmuch_Object (notmuch_rb_cFileNames, &notmuch_rb_filenames_type, fnames);
}