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OpenSolaris 2009.06 - man page for thr_main (opensolaris section 3c)

thr_main(3C)						   Standard C Library Functions 					      thr_main(3C)

NAME
thr_main - identify the main thread
SYNOPSIS
cc -mt [ flag... ] file... [ library... ] #include <thread.h> int thr_main(void);
DESCRIPTION
The thr_main() function returns one of the following: 1 if the calling thread is the main thread 0 if the calling thread is not the main thread -1 if libthread is not linked in or thread initialization has not completed
FILES
/lib/libthread
ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ |ATTRIBUTE TYPE |ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+
SEE ALSO
thr_self(3C), attributes(5) SunOS 5.11 11 May 1998 thr_main(3C)