Date: Thu, 3 Jun 2010 09:44:52 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: V clav Haisman <v.haisman@sh.cvut.cz> Cc: freebsd-hackers@freebsd.org Subject: Re: How to get a thread ID? Message-ID: <20100603144452.GC85961@dan.emsphone.com> In-Reply-To: <6e716c850fa84621482b71826dae55d5@shell.sh.cvut.cz> References: <6e716c850fa84621482b71826dae55d5@shell.sh.cvut.cz>
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In the last episode (Jun 03), Václav Haisman said: > is it possible to obtain some sort of a thread ID that identifies a thread > within a process other than pthread_self()? Something like gettid() on > Linux? Apparently, on FreeBSD the pthread_t is a pointer type and does > not identify the thread well enough. GDB on FreeBSD seems to know about > threads and does not seem to use the same ID as is pthread_t. The return value of pthread_self() is a pointer to the (private) "struct pthread" for the current thread, and should uniquely identify a thread. Do you have a testcase that shows otherwise? GDB might just enumerate the currently active threads starting from 1. -- Dan Nelson dnelson@allantgroup.com
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