Messages in this thread | | | Subject | Re: Thread_Id | From | Benedikt Spranger <> | Date | Thu, 14 Jul 2005 15:08:24 +0200 |
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> And you certainly shouldn't be using gettid () syscall in NPTL, as it > is just an implementation detail that there is a 1:1 mapping between > NPTL threads and kernel threads. It can change at any time.
Maybe I missed the point, but I thought the 1:1 mapping between NPTL threads and kernel threads is one of the advantages of NPTL and the idea of a userland scheduler is quite dead.
So please let gettid do what man gettid assures: gettid returns the thread ID of the current process. This is equal to the process ID (as returned by getpid(2)), unless the process is part of a thread group (created by specifying the CLONE_THREAD flag to the clone(2) system call). All processes in the same thread group have the same PID, but each one has a unique TID.
Bene
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