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agent: Reduce sleep time in the progress callback.
* agent/gpg-agent.c (agent_libgcrypt_progress_cb): Reduce sleep time from 100ms to 1ms or use gpgrt_yield when build against a recent libgpg-error. -- Debian-bug-id: 851298 Signed-off-by: Werner Koch <wk@gnupg.org>
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@ -1763,11 +1763,19 @@ agent_libgcrypt_progress_cb (void *data, const char *what, int printchar,
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/* Libgcrypt < 1.8 does not know about nPth and thus when it reads
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* from /dev/random this will block the process. To mitigate this
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* problem we take a short nap when Libgcrypt tells us that it needs
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* problem we yield the thread when Libgcrypt tells us that it needs
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* more entropy. This way other threads have chance to run. */
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#if GCRYPT_VERSION_NUMBER < 0x010800 /* 1.8.0 */
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if (what && !strcmp (what, "need_entropy"))
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npth_usleep (100000); /* 100ms */
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{
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#if GPGRT_VERSION_NUMBER < 0x011900 /* 1.25 */
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/* In older gpg-error versions gpgrt_yield is buggy for use with
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* nPth and thus we need to resort to a sleep call. */
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npth_usleep (1000); /* 1ms */
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#else
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gpgrt_yield ();
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#endif
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}
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#endif
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}
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