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	<id>https://nick-black.com/dankwiki/index.php?action=history&amp;feed=atom&amp;title=OpenSSL</id>
	<title>OpenSSL - revision history</title>
	<link rel="self" type="application/atom+xml" href="https://nick-black.com/dankwiki/index.php?action=history&amp;feed=atom&amp;title=OpenSSL"/>
	<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;action=history"/>
	<updated>2026-07-11T15:25:05Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.46.0</generator>
	<entry>
		<id>https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=886&amp;oldid=prev</id>
		<title>Dank at 03:29, 16 August 2009</title>
		<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=886&amp;oldid=prev"/>
		<updated>2009-08-16T03:29:24Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw-interface=&quot;&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 03:29, 16 August 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l2&quot;&gt;Line 2:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* The &amp;lt;tt&amp;gt;threads(3ssl)&amp;lt;/tt&amp;gt; man page is pretty good.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* The &amp;lt;tt&amp;gt;threads(3ssl)&amp;lt;/tt&amp;gt; man page is pretty good.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Unless you&amp;#039;re using OpenSSL 0.9.9, the &amp;lt;tt&amp;gt;CRYPTO_set_id_callback(3ssl)&amp;lt;/tt&amp;gt; is pretty much broken on [[pthreads]] implementations which don&amp;#039;t return an integer value from &amp;lt;tt&amp;gt;pthread_self(3)&amp;lt;/tt&amp;gt;. This is true for the [[FreeBSD APIs|FreeBSD]] native implementations (the [[LinuxThreads]] emulation package should work, but is broken in other, more grave, ways). On OpenSSL 0.9.9, &amp;lt;tt&amp;gt;CRYPTO_set_idptr_callback(3ssl)&amp;lt;/tt&amp;gt; can be used for implementations which return a pointer or an aggregate.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Unless you&amp;#039;re using OpenSSL 0.9.9, the &amp;lt;tt&amp;gt;CRYPTO_set_id_callback(3ssl)&amp;lt;/tt&amp;gt; is pretty much broken on [[pthreads]] implementations which don&amp;#039;t return an integer value from &amp;lt;tt&amp;gt;pthread_self(3)&amp;lt;/tt&amp;gt;. This is true for the [[FreeBSD APIs|FreeBSD]] native implementations (the [[LinuxThreads]] emulation package should work, but is broken in other, more grave, ways). On OpenSSL 0.9.9, &amp;lt;tt&amp;gt;CRYPTO_set_idptr_callback(3ssl)&amp;lt;/tt&amp;gt; can be used for implementations which return a pointer or an aggregate.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;** [[libdank]]&#039;s OpenSSL layer handles this via a &amp;lt;tt&amp;gt;pthread_once_t&amp;lt;/tt&amp;gt; which installs a class of thread-specific data. If the thread executing the callback has a NULL value for &amp;lt;tt&amp;gt;pthread_get_specific()&amp;lt;/tt&amp;gt;, a &amp;lt;tt&amp;gt;static&amp;lt;/tt&amp;gt; key is incremented and copied into the TSD. The increment, and copy of the result, forms a &amp;lt;tt&amp;gt;static&amp;lt;/tt&amp;gt; mutex-protected critical section.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*[http://www.mail-archive.com/openssl-users@openssl.org/msg52117.html &amp;quot;Clarification questions on OpenSSL thread-safe support&amp;quot;], openssl-users mailing list 2008-03-10&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*[http://www.mail-archive.com/openssl-users@openssl.org/msg52117.html &amp;quot;Clarification questions on OpenSSL thread-safe support&amp;quot;], openssl-users mailing list 2008-03-10&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*[http://www.mail-archive.com/openssl-users@openssl.org/msg46161.html &amp;quot;When to use CRYPTO_set_locking_callback() and CRYPTO_set_id_callback()?&amp;quot;], openssl-users mailing list 2006-08-17&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;*[http://www.mail-archive.com/openssl-users@openssl.org/msg46161.html &amp;quot;When to use CRYPTO_set_locking_callback() and CRYPTO_set_id_callback()?&amp;quot;], openssl-users mailing list 2006-08-17&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Dank</name></author>
	</entry>
	<entry>
		<id>https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=818&amp;oldid=prev</id>
		<title>Dank at 08:19, 5 August 2009</title>
		<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=818&amp;oldid=prev"/>
		<updated>2009-08-05T08:19:35Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw-interface=&quot;&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 08:19, 5 August 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l4&quot;&gt;Line 4:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[http://www.mail-archive.com/openssl-users@openssl.org/msg52117.html &quot;Clarification questions on OpenSSL thread-safe support&quot;], openssl-users mailing list 2008-03-10&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*&lt;/ins&gt;[http://www.mail-archive.com/openssl-users@openssl.org/msg52117.html &quot;Clarification questions on OpenSSL thread-safe support&quot;], openssl-users mailing list 2008-03-10&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[http://www.mail-archive.com/openssl-users@openssl.org/msg46161.html &quot;When to use CRYPTO_set_locking_callback() and CRYPTO_set_id_callback()?&quot;], openssl-users mailing list 2006-08-17&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;*&lt;/ins&gt;[http://www.mail-archive.com/openssl-users@openssl.org/msg46161.html &quot;When to use CRYPTO_set_locking_callback() and CRYPTO_set_id_callback()?&quot;], openssl-users mailing list 2006-08-17&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Dank</name></author>
	</entry>
	<entry>
		<id>https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=817&amp;oldid=prev</id>
		<title>Dank at 08:19, 5 August 2009</title>
		<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=817&amp;oldid=prev"/>
		<updated>2009-08-05T08:19:25Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw-interface=&quot;&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 08:19, 5 August 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l5&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[http://www.mail-archive.com/openssl-users@openssl.org/msg52117.html &amp;quot;Clarification questions on OpenSSL thread-safe support&amp;quot;], openssl-users mailing list 2008-03-10&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[http://www.mail-archive.com/openssl-users@openssl.org/msg52117.html &amp;quot;Clarification questions on OpenSSL thread-safe support&amp;quot;], openssl-users mailing list 2008-03-10&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[http://www.mail-archive.com/openssl-users@openssl.org/msg46161.html &quot;When to use CRYPTO_set_locking_callback() and CRYPTO_set_id_callback()?&quot;], openssl-users mailing list 2006-08-17&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Dank</name></author>
	</entry>
	<entry>
		<id>https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=816&amp;oldid=prev</id>
		<title>Dank at 08:12, 5 August 2009</title>
		<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=816&amp;oldid=prev"/>
		<updated>2009-08-05T08:12:45Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw-interface=&quot;&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 08:12, 5 August 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Threads==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==Threads==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* The threads(3ssl) man page is pretty good.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;tt&amp;gt;&lt;/ins&gt;threads(3ssl)&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;/tt&amp;gt; &lt;/ins&gt;man page is pretty good.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Unless you&amp;#039;re using OpenSSL 0.9.9, the &amp;lt;tt&amp;gt;CRYPTO_set_id_callback(3ssl)&amp;lt;/tt&amp;gt; is pretty much broken on [[pthreads]] implementations which don&amp;#039;t return an integer value from &amp;lt;tt&amp;gt;pthread_self(3)&amp;lt;/tt&amp;gt;. This is true for the [[FreeBSD APIs|FreeBSD]] native implementations (the [[LinuxThreads]] emulation package should work, but is broken in other, more grave, ways). On OpenSSL 0.9.9, &amp;lt;tt&amp;gt;CRYPTO_set_idptr_callback(3ssl)&amp;lt;/tt&amp;gt; can be used for implementations which return a pointer or an aggregate.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* Unless you&amp;#039;re using OpenSSL 0.9.9, the &amp;lt;tt&amp;gt;CRYPTO_set_id_callback(3ssl)&amp;lt;/tt&amp;gt; is pretty much broken on [[pthreads]] implementations which don&amp;#039;t return an integer value from &amp;lt;tt&amp;gt;pthread_self(3)&amp;lt;/tt&amp;gt;. This is true for the [[FreeBSD APIs|FreeBSD]] native implementations (the [[LinuxThreads]] emulation package should work, but is broken in other, more grave, ways). On OpenSSL 0.9.9, &amp;lt;tt&amp;gt;CRYPTO_set_idptr_callback(3ssl)&amp;lt;/tt&amp;gt; can be used for implementations which return a pointer or an aggregate.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[http://www.mail-archive.com/openssl-users@openssl.org/msg52117.html &amp;quot;Clarification questions on OpenSSL thread-safe support&amp;quot;], openssl-users mailing list 2008-03-10&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[http://www.mail-archive.com/openssl-users@openssl.org/msg52117.html &amp;quot;Clarification questions on OpenSSL thread-safe support&amp;quot;], openssl-users mailing list 2008-03-10&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>Dank</name></author>
	</entry>
	<entry>
		<id>https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=815&amp;oldid=prev</id>
		<title>Dank: Created page with &#039;==Threads== * The threads(3ssl) man page is pretty good. * Unless you&#039;re using OpenSSL 0.9.9, the &lt;tt&gt;CRYPTO_set_id_callback(3ssl)&lt;/tt&gt; is pretty much broken on pthreads impl...&#039;</title>
		<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=OpenSSL&amp;diff=815&amp;oldid=prev"/>
		<updated>2009-08-05T08:12:19Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;#039;==Threads== * The threads(3ssl) man page is pretty good. * Unless you&amp;#039;re using OpenSSL 0.9.9, the &amp;lt;tt&amp;gt;CRYPTO_set_id_callback(3ssl)&amp;lt;/tt&amp;gt; is pretty much broken on &lt;a href=&quot;/dankwiki/index.php?title=Pthreads&quot; title=&quot;Pthreads&quot;&gt;pthreads&lt;/a&gt; impl...&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Threads==&lt;br /&gt;
* The threads(3ssl) man page is pretty good.&lt;br /&gt;
* Unless you&amp;#039;re using OpenSSL 0.9.9, the &amp;lt;tt&amp;gt;CRYPTO_set_id_callback(3ssl)&amp;lt;/tt&amp;gt; is pretty much broken on [[pthreads]] implementations which don&amp;#039;t return an integer value from &amp;lt;tt&amp;gt;pthread_self(3)&amp;lt;/tt&amp;gt;. This is true for the [[FreeBSD APIs|FreeBSD]] native implementations (the [[LinuxThreads]] emulation package should work, but is broken in other, more grave, ways). On OpenSSL 0.9.9, &amp;lt;tt&amp;gt;CRYPTO_set_idptr_callback(3ssl)&amp;lt;/tt&amp;gt; can be used for implementations which return a pointer or an aggregate.&lt;br /&gt;
&lt;br /&gt;
==See also==&lt;br /&gt;
[http://www.mail-archive.com/openssl-users@openssl.org/msg52117.html &amp;quot;Clarification questions on OpenSSL thread-safe support&amp;quot;], openssl-users mailing list 2008-03-10&lt;/div&gt;</summary>
		<author><name>Dank</name></author>
	</entry>
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