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metze
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SA_INFO_QUEUE_COUNT *MUST* be a power of 2, in order for the ring buffer
wrap to work correctly at the 32 bit boundary. Thanks to Petr
Vandrovec <petr@vandrovec.name> for this.
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When the first signal arrives, tevent_common_signal_handler() crashed: "ev" is
initialized to NULL, so the first "write(ev->pipe_fds[1], &c, 1);" dereferences
NULL.
Rusty, Tridge, please check. Also, can you tell me a bit more about the
environment you tested this in? I'd be curious to see where this survived.
Thanks,
Volker
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The "hack_fds" were never closed before; now they're inside event_context
they should be closed when that is destroyed.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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I don't know if this is a problem in real life.
The code assumes there's only one tevent_context; all signals will notify
the first event context. That's counter-intuitive if you ever use more
than one, and there's nothing else in this code which prevents it AFAICT.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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We carefully preserve the old signal handler, but we replace it before
we've set up everything; in particular, if we fail setting up the
pipe_hack we could write a NUL char to stdout (fd 0), instead of
calling the old signal handler.
Replace the signal handler as the very last thing we do.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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To be completely honest, I don't quite know whether to laugh or cry at
this one:
1 + (0xFFFFFFFF & ~(s.seen - s.count))
== 1 + (~(s.seen - s.count)) # s.seen, s.count are uint32_t
== s.count - s.seen # -A == ~A + 1
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Guenther
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Based on a patch submitted by Petr Vandrovec <petr@vandrovec.name>.
Multiple pending signals with siginfo_t's weren't being handled correctly
leading to smbd abort with kernel oplock signals.
Jeremy
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Michael
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metze
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This offers a generic way for callers to cancel an
async request.
metze
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metze
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defined
metze
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Jeremy.
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ensure it's zeroed out. Vl & Metze please check.
Jeremy.
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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 reverts commit b112cc5503350b248949bdbcce8072f5523ce877.
tevent_util.h is a private header. Must not be installed.
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Patch for bug #6270
This patch is for the future when samba4 builds using external libraries. With
this patch, tevent now installs tevent_util.h which is required by samba4.
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This is a first attempt at exporting symbols only for public functions
We also provide a rudimentary ABI checker that tries to check that
function signatures are not changed by mistake.
Given our use of macros this is not an API checker.
It's all based on tevent.h contents and the gcc -aux-info option
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This is necessary for requests that have multiple results. Examples would be
SMBEcho and ldap_search.
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targets
Signed-Off-By: Jelmer Vernooij <jelmer@samba.org>
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with released versions of talloc.
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This module didn't have any functionality that we actually used yet, and
it was quite small.
Tevent is quite low level and perhaps doesn't make much sense to expose
directly as a Python module. It was also causing build problems when used with a
system-tevent. We can always back later if necessary.
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This is not ideal, but at least it fixes the build of samba-gtk for now.
I've also added a warning about API guarantees at the top of the header.
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either (from Samba).
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metze
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Only tevent_loop_once and tevent_loop_until() should care
about the nesting level.
This fixes the samba3 printing code where we use tevent_loop_wait()
and don't allow nested events.
We still call the nesting hook for all levels, we need to decide
if we really want this...
metze
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The event nesting code never triggered as nesting.level was never
greater than 1. The main event loop needs to increase the nesting
level by 1.
I also added a paranoia check to the nesting setup call. The API as
currently written cannot support multiple nesting hooks, so we need to
abort if multiple hooks are tried.
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metze
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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.
metze
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metze
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Now tevent_req_post() never fails
metze
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metze
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They're like directly triggered timed events,
but you can preallocated them and scheduling them
will not fail.
metze
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tevent_loop_wait should do the same for all backends.
It should loop as long as we have pending events.
metze
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We also check for signal events directly before and after
the select/epoll calls.
metze
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This makes the logic much simpler for the callers,
and matches the samba3 behavior.
If needed we can add performance tunning for tevent_loop_wait()
later.
metze
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metze
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This is only a hack for samba4 and should not be used
in new code.
metze
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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.
metze
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Incompatible caller should use tevent_loop_allow_nesting()
function.
metze
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metze
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metze
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Not every tevent backend supports signal events.
metze
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