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Signed-off-by: Matthias Dieter Wallnöfer <mwallnoefer@yahoo.de>
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This offers a generic way for callers to cancel an
async request.
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move publicly needed structures and functions in the public header.
Stop installing internal headers.
Update the signature and exports files with the new exposed
function.
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This is necessary for requests that have multiple results. Examples would be
SMBEcho and ldap_search.
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This is very useful to find bugs.
You can use 'p *req' in gdb to show where
tevent_req_done(), tevent_req_error() or tevent_req_nomem()
was called.
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They're like directly triggered timed events,
but you can preallocated them and scheduling them
will not fail.
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This is only a hack for samba4 and should not be used
in new code.
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This is an ugly hack to let the s4 server work arround
some bugs related to nested events and uid changing.
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Incompatible caller should use tevent_loop_allow_nesting()
function.
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Not every tevent backend supports signal events.
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Callers can use it instead of tevent_req_callback_data()
if they use a non talloc private pointer.
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This function can be called as last action of a _recv()
function, it destroys the data attached to the tevent_req.
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Move struct tevent_req in tevent_internal, and ad getters and setters
for private data and the callback function.
This patch also renames 'private_state' into 'data'. What is held in this
pointer is in fact data and not a state like enum tevent_req_state.
Calling it 'state' is confusing.
The functions addedd are:
tevent_req_set_callback() - sets req->async.fn and req->async.private_data
tevent_req_set_print_fn() - sets req->private_print
tevent_req_callback_data() - gets req->async.private_data
tevent_req_data() - gets rea->data
This way it is much simpler to keep API/ABI compatibility in the future.
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This can be used as tevent_req based timer event.
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This makes more clear what the function does.
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Also add tevent_timeval_add() and tevent_timeval_current_ofs()
to help not depending on lub/util/time.c for things that just need tevent
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This is almost a copy of the async_req code,
which will be removed later.
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It makes no sense to support aio events because,
the current implementation was based on IOCB_CMD_EPOLL_WAIT
which never made it into the main kernel tree.
The native linux aio can be used with select/epoll
using eventfd(), which means we can implement aio
with fd events and implement aio outside of tevent.
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TEVENT_FD_AUTOCLOSE adds a dependency to SOCKET_WRAPPER,
which is bad. Callers should use tevent_fd_set_close_fn() now.
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tevent_fd_set_auto_close() is a simple wrapper
arround tevent_fd_set_close_fn() with a callback
that uses plain close(2).
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Let callers specify a close function
as an alternative to TEVENT_FD_AUTOCLOSE.
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And related changes, but we keep compat macros
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This passes some additional debug information into
the events system to make it easier to find bugs.
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list=""
list="$list event_context:tevent_context"
list="$list fd_event:tevent_fd"
list="$list timed_event:tevent_timer"
for s in $list; do
o=`echo $s | cut -d ':' -f1`
n=`echo $s | cut -d ':' -f2`
r=`git grep "struct $o" |cut -d ':' -f1 |sort -u`
files=`echo "$r" | grep -v source3 | grep -v nsswitch | grep -v packaging4`
for f in $files; do
cat $f | sed -e "s/struct $o/struct $n/g" > $f.tmp
mv $f.tmp $f
done
done
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We have compat macros to keep the callers happy.
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This commit will not compile on its own.
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