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Running Version 2 Applications
6.1 Comparison of OpenVMS API and Portable API
Table 6–1 OpenVMS API and Portable API Comparison
OpenVMS API (Version 2) Portable API (Version 3)
$dcl_tx_prc() rtr_open_channel()
$start_tx() rtr_start_tx() [optional]
$commit_tx() rtr_accept_tx()
$abort_tx() rtr_reject_tx()
$vote_tx() rtr_accept_tx()
rtr_reject_tx()
$deq_tx() rtr_receive_message()
$enq_tx() rtr_send_to_server()
rtr_reply_to_client()
rtr_broadcast_event()
$dcl_tx_prc() (SHUT) rtr_close_channel()
$get_txi() rtr_request_info()
$set_txi() rtr_set_info()
ASTPRM (on asynch calls) rtr_set_user_handle()
- rtr_error_text()
- rtr_get_tid()
- rtr_prepare_tx()
- rtr_set_wakeup()
OpenVMS API calls are obsolete and supported only on OpenVMS systems.
6.2 Recompiling and Relinking
There is no need to recompile and relink RTR Version 2 applications to run them
on RTR Version 3.
To link RTR application programs, include the following line in the linker options
file:
SYS$SHARE:LIBRTR/SHARE
An existing RTR Version 2 application will run on RTR Version 3.
However, if the application is recompiled, you must supply all parameters for
any RTR call. For example, the $ENQ_TX service has eleven parameters, some
of which were optional in RTR Version 2. All eleven must be supplied if the
application is recompiled with RTR Version 3.
Note
If recompiling an RTR Version 2 application not written in C, use
appropriate include files from the RTR Version 2 kit to ensure correct
compilation. With the RTR Version 3 API, C is the only language for
which a header file is provided.
6–2 Running Version 2 Applications