On Wed, Nov 29, 2017 at 03:51:34AM +0000, Rostislav Pehlivanov wrote: > On 28 November 2017 at 20:23, Michael Niedermayer <mich...@niedermayer.cc> > wrote: > > > On Mon, Nov 27, 2017 at 04:30:19AM +0000, Rostislav Pehlivanov wrote: > > > Atomics were entirely pointless and did nothing but slow and complicate > > > the process down. This could be improved further still but the main > > > objective of this commit is to simplify. > > > > > > Signed-off-by: Rostislav Pehlivanov <atomnu...@gmail.com> > > > --- > > > libavfilter/avfilter.c | 8 +++++--- > > > 1 file changed, 5 insertions(+), 3 deletions(-) > > > > *_register() can be called by the user app in a unsyncronized way > > for example from a module like vlc used AFAIK. > > or from libs loaded by an application which use libavfilter or other > > internally. > > > > These registration functions should stay thread safe > > > > > > [...] > > > > -- > > Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB > > > > Those who would give up essential Liberty, to purchase a little > > temporary Safety, deserve neither Liberty nor Safety -- Benjamin Franklin > > > > _______________________________________________ > > ffmpeg-devel mailing list > > ffmpeg-devel@ffmpeg.org > > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > > > > What variable actually needs to be protected?
The linked list of registered "entities" That is if the addition is not synchronized by some means, an atomic exchange a mutex or something then a race can generally occur and only one addition might succeed or something else might get entangled This is in practical terms a very unlikely event to occur of course [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB You can kill me, but you cannot change the truth.
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