DCE for the HP e3000 (B3821-90003)

Chapter 3 29
Threads Architecture on MPE/iX
Threads Architecture
B HPFOPEN::@ Sets a breakpoint at HPFOPEN for
the current pin (tin) with the
stop-all-threads option that is honored
if the pin belongs to a threaded task.
B HPFOPEN:.3:@ Sets a breakpoint at HPFOPEN for tin
3 of the current task, and the
breakpoint has the stop-all-threads
option.
B HPFOPEN:.@:@ Sets a task-wide breakpoint at
HPFOPEN for the current task, and
the breakpoint has the stop-all-threads
option.
Commands
The following commands aid in debugging threaded applications.
Command Description
TIN [init_thread_pin.]tin This command causes debug to switch
to the environment of the specified tin.
The default init_thread_pin is that
of the current task. Privilege mode is
required to switch to any tin in another
task.
SUSPEND This command suspends all other
threads within the task of the tin being
debugged. The suspended threads are
not resumed automatically with the
continue command.
ACTIVATE This command resumes the threads
that were suspended by the SUSPEND
command. It should be issued from the
same tin that issued the SUSPEND
command.
Environmental Variables
There are two environment variables that simplify debugging
applications:
Environment Variable Description
SS_TERM_KEEPLOCK When set to TRUE, a pin (tin) being
debugged retains the terminal
semaphore while single-stepping. This
prevents any other pin (tin), that is
waiting to enter debug, from obtaining
the terminal semaphore and
interfering with the debug session.