MVS Jan 2005.p65 - CBT Tape

The spawn() function has the drawback that the requested
spawn program must reside in the USS HFS.
THE PTHREAD_CREATE() FUNCTION
A third multi-tasking option supported by C/C++ is the
pthread_create() function. The pthread_create() function works
as follows:
Subtasks are created for each successfully initiated
pthread_create() request.
Parameters can be passed to the target program through
a pthread_create() parameter.
Pthread_create() can be used from either an authorized
or unauthorized environment.
Potential drawbacks of the pthread_create() function include:
Subtask routines initiated by pthread_create() must exist
in the load module of the caller, although the routines do
run under a separate driver subtask program (BPXPTATT
in module BPXINLPA).
The environment must be POSIX(ON).
There is a suite of pthread_-related function calls. Some of the
more interesting and relevant ones are:
Pthread_detach() – cleans up resources used for a
pthread_create().
Pthread_exit() – terminates the subtask initiated by a
pthread_create().
Pthread_join() – can be used to wait for a pthread_create()
initiated subtask to complete.
THE IBM C/C++ MULTI-TASKING FACILITY (MTF)
A fourth multi-tasking option is the C/C++ Multi Tasking
Facility. MTF works as follows:
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