On Tue, 27 Aug 2013 20:38:12 +0800
Wenchao Xia <address@hidden> wrote:
This series make auto completion and help functions works normal for sub
command, by using reentrant functions. In order to do that, global variables
are not directly used in those functions any more. With this series, cmd_table
is a member of structure Monitor so it is possible to create a monitor with
different command table now, auto completion will work in that monitor. In
short, "info" is not treated as a special case now, this series ensure help
and auto complete function works normal for any sub command added in the future.
Patch 5 replaced cur_mon with rs->mon, it is safe because:
monitor_init() calls readline_init() which initialize mon->rs, result is
mon->rs->mon == mon. Then qemu_chr_add_handlers() is called, which make
monitor_read() function take *mon as its opaque. Later, when user input,
monitor_read() is called, where cur_mon is set to *mon by "cur_mon = opaque".
If qemu's monitors run in one thread, then later in readline_handle_byte()
and readline_comletion(), cur_mon is actually equal to rs->mon, in another
word, it points to the monitor instance, so it is safe to replace *cur_mon
in those functions.
Thanks for Luiz and Eric for reviewing.
Applied to the qmp branch, thanks.
Btw, I'm assuming that the patches that contain Eric's reviewed-by didn't
change since he reviewed them. Personally, I don't think it's right to carry
reviewed-bys when the patch changes, even if it's something small or
obvious.