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pthread_self

Submitted by jelari
on June 18, 2008 - 7:50am

Hi i have create a POSIX thread and trying to pring thread id through pthread_self(), when i print that with %d or %ld, i am getting the negative value?.. what is the workaround for this issue?. My linux version is
2.6.22-14-server.

‹ priority inversion process creation/kill events notification ›

Pthread ids are long

memphis
on
June 18, 2008 - 1:23pm

Pthread ids are long unsigned int, while %d is for signed ints. Try using %u instead or %lu.

pthread_t is an opaque type.

Paul Brook (not verified)
on
June 18, 2008 - 7:13pm

pthread_t is an opaque type. Expect anything that tries to manipulate it directly (e.g. by passing it as an argument to printf) to break.

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