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Fixes: f1a364878431c8 ("threads: update for late C11 changes")
Reviewed-by: Roland Scheidegger <[email protected]>
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C11 threads were changed to use struct timespec instead of xtime, and
thrd_sleep got a second argument.
See http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1554.htm and
http://en.cppreference.com/w/c/thread/{thrd_sleep,cnd_timedwait,mtx_timedlock}
Note that cnd_timedwait is spec'd to be relative to TIME_UTC / CLOCK_REALTIME.
v2: Fix Windows build errors. Tested with a default Appveyor config
that uses Visual Studio 2013. Judging from Brian's email and
random internet sources, Visual Studio 2015 does have timespec
and timespec_get, hence the _MSC_VER-based guard which I have
not tested.
Cc: Jose Fonseca <[email protected]>
Cc: Brian Paul <[email protected]>
Reviewed-by: Marek Olšák <[email protected]> (v1)
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Drop the misleading "will not match the one returned by thread_create"
hunk and provide more clarity as to what/why GetCurrentThread() isn't
the solution we're looking for.
v2: Places brackets after function names (Eric)
Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]> (v1)
Reviewed-by: Eric Engestrom <[email protected]>
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We should assert when either the function or the flag pointer
is null or we'll end up with a null reference a few lines later.
Currently unused by mesa thus it has gone unnoticed.
Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
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In the gallium code, the assert() macro could come from either the
system's assert.h file (via c11/threads.h) or from gallium's u_debug.h.
It looks like all known assert.h files unconditionally #undef assert
before defining their own version. So the assert you get depends on
whether threads.h or u_debug.h was included last.
In the gallium code we really want to use the assert() from u_debug.h
(it behaves better on Windows). In gallium, c11/threads.h is only
included after u_debug.h in the os_thread.h wrapper. So Adding
an #ifndef assert test in the threads*.h files avoids using the system's
assert().
Cc: "10.1" <[email protected]>
Reviewed-by: José Fonseca <[email protected]>
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GetCurrentThread() returns a pseudo-handle (a constant which only makes
sense when used within the calling thread) and not a real handle.
DuplicateHandle() will return a real handle, but it will create a new
handle every time we call. Calling DuplicateHandle() here means we will
leak handles, which can cause serious problems.
In short, the Windows implementation of thrd_t needs a thorough make
over, and it won't be pretty. It looks like C11 committee
over-simplified things: it would be much better to have seperate objects
for threads and thread IDs like C++11 does.
For now, just comment out the thrd_current() implementation, so we get
build errors if anybody tries to use it.
Thanks to Brian Paul for spotting and diagnosing this problem.
Cc: "10.0" "10.1" <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
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Per https://gist.github.com/yohhoy/2223710/#comment-710118
Cc: "10.0" "10.1" <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Michel Dänzer <[email protected]>
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For malloc/free.
Silences gcc mingw warnings.
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Implementation is based of https://gist.github.com/2223710 with the
following modifications:
- inline implementatation
- retain XP compatability
- add temporary hack for static mutex initializers (as they are not part
of the stack but still widely used internally)
- make TIME_UTC a conditional macro (some system headers already define
it, so this prevents conflict)
- respect HAVE_PTHREAD macro
Reviewed-by: Brian Paul <[email protected]>
Acked-by: Ian Romanick <[email protected]>
Acked-by: Chad Versace <[email protected]>
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