Date: Wed, 28 May 2003 20:07:24 -0400 (EDT) From: Daniel Eischen <eischen@pcnet.com> To: Craig Rodrigues <rodrigc@attbi.com> Cc: freebsd-threads@freebsd.org Subject: Re: Question about OpenSSL id_function() and pthreads Message-ID: <Pine.GSO.4.10.10305282000170.133-100000@pcnet5.pcnet.com> In-Reply-To: <20030528235120.GA3481@attbi.com>
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On Wed, 28 May 2003, Craig Rodrigues wrote: > Hi, > > I previously asked this question on freebsd-security@ and > freebsd-current@ : > > http://docs.freebsd.org/cgi/getmsg.cgi?fetch=63674+0+archive/2003/freebsd-security/20030302.freebsd-security > > > Let me try again, now that there is a freebsd-threads mailing list. > > > On the following OpenSSL web page: > http://www.openssl.org/docs/crypto/threads.html > > "void CRYPTO_set_id_callback(unsigned long (*id_function)(void)); > > id_function(void) is a function that returns a thread ID. > It is not needed on Windows nor on platforms where getpid() returns > a different ID for each thread (most notably Linux)." > > > I have some third party C++ code which tries to implements this function: > > tatic unsigned long > idFunction() > { > #ifdef _WIN32 > return static_cast<unsigned long>(GetCurrentThreadId()); > #else > return static_cast<unsigned long>(pthread_self()); > #endif > } > > > This code does not compile on FreeBSD-CURRENT: > > OpenSSLPluginI.cpp: In function `long unsigned int idFunction()': > OpenSSLPluginI.cpp:151: invalid static_cast from type `pthread*' to type `long > unsigned int' I don't know C++ well (much at all). What does static_cast do? The error message makes it look as if you are converting a "pthread" * to "long unsigned int". Don't you just want "unsigned long" instead? > > How can I implement this function properly on FreeBSD? -- Dan Eischen
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