core: Refactor the wait code utilizing the new fdtable.
* src/fdtable.c, src/fdtable.h: Largely extend. * src/wait-global.c, src/wait-private.c, src/wait-user.c: Remove and move code to ... * src/wait.c: here. (_gpgme_fd_table_init, fd_table_put): Remove. Do not call them. (_gpgme_add_io_cb, _gpgme_add_io_cb_user): Change to use the fdtable. (_gpgme_remove_io_cb, _gpgme_remove_io_cb_user): Ditto. (_gpgme_wait_global_event_cb): Ditto. (gpgme_wait_ext, _gpgme_wait_on_condition): Ditto. * src/wait.h (struct io_cb_tag_s): Add fields 'serial' and 'desc'. Change 'idx' to 'fd'. (struct fd_table): Remove. * src/context.h (struct gpgme_context): Remoce 'fdt'. Rename io_cbs to user_io_cbs for clarity. * src/engine-gpgsm.c: Unify trace output. (start): Pass a description along with the IO handlers. * src/priv-io.h (struct io_select_fd_s): Rename to io_select_s. (io_select_t): New. * src/gpgme.c (_gpgme_cancel_with_err): Replace arg 'ctx' by 'serial'. (gpgme_cancel): Adjust.
This is the second part of a larger refactoring of the wait/event
code. Does currently only work on Unix and with the private wait
functions (i.e. the async operations don't yet work).
- Signed-off-by: Werner Koch <wk@gnupg.org>