Very Computer

Hello,

Does anyone know if there is a POSIX-compliant threads package available
for FreeBSD?  I took a look at the pthreads packages that are available
from FSU and MIT.  Both libraries provide user-level threads, mutexes, etc.,
but there is no implementation of POSIX semaphores.

I need access to POSIX semaphores in order to get my work off the ground.

Any help or advice would be greatly appreciated.

JP
--
Joshua Pincus
UNIX Programmer
University of Rochester Computing Center
Rochester, New York 14627

Quote:>I tried to compile a simple pthreads program but the linker could not
>find the thread functions.  I proceded to do a
>"nm /usr/lib/*.a |grep pthread_create" and failed to locate the
>library.  Granted I didn't spend much time searching other posiable
>directory locations.

# cd /usr/src/lib/libc_r
# make all install

to compile add -lc_r to your final cc statement. see "man 3 pthread"

there is the MIT threads package:

        http://www.mit.edu:8001/people/proven/pthreads.html

there is the patched MIT pthreads at:

        http://www.humanfactor.com/pthreads/

The libc_r uses most of the libc and adds uthread routines, where
the MIT and PMPThreads re-implement the libc routines...some of the
re-implemented libc routines, IMO, are older than the libc versions.

the original poster is correct the MIT, and PMPThread implementaions
only implement SEMAPHORE_TEST_AND_SET and SEMAPHORE_RESET functions,
not the expected sem_* functions.

--mark.