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This allows us to re-initialise a tevent context without destroying
the pointer. That means that if someone keeps a long term ptr to the
event context across a fork it will still work.
This also brings the memory handling in single and standard process
models much closer together, which means less bugs that we don't find
with make test.
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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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