HP OpenVMS Systems Documentation
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Compaq ACMS for OpenVMS
Systems Interface Programming
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Contents (summary)
Preface Preface
Chapter 1 Overview of the ACMS Systems Interface
Chapter 2 Common Features of the Systems Interface
Chapter 3 Agent Programs that Coordinate Distributed Transactions
Chapter 4 Agent Program Initialization and Exchange I/O Services
Chapter 5 Submitter Services
Chapter 6 Stream Services
Chapter 7 Sample Agent Programs
Appendix A Superseded Services and Parameters
  Index
  Figures
  Examples
  Tables

Contents

Preface
Preface Preface
Chapter 1
1 Overview of the ACMS Systems Interface
     1.1     The ACMS Systems Interface
     1.2     Systems Interface Services
     1.3     Agent Programs
         1.3.1         Calling Tasks
         1.3.2         Using Streams
         1.3.3         Using SI Identifiers
Chapter 2
2 Common Features of the Systems Interface
     2.1     Features Common to the SI Services
         2.1.1         Service Call Specification
         2.1.2         Parameter Notation
         2.1.3         Return Status
         2.1.4         Synchronous and Asynchronous Calling Formats
         2.1.5         ACMS$SIGNAL and ACMS$WAIT Support Services
             2.1.5.1             ACMS$SIGNAL
             2.1.5.2             ACMS$WAIT
         2.1.6         Single-Threaded and Multithreaded Agent Programs
         2.1.7         Default Submitter Feature
         2.1.8         Running an Agent Program
             2.1.8.1             Preparing to Use RI or User-Written Agents that Use DECforms in Tasks
             2.1.8.2             Starting an Agent Program
         2.1.9         Debugging an Agent Program with ACMS$CHECK
     2.2     Features Common to Languages that Call the Systems Interface
         2.2.1         BLISS
         2.2.2         C
         2.2.3         FORTRAN
         2.2.4         MACRO
         2.2.5         Pascal
         2.2.6         PL/I
         2.2.7         Other Languages
Chapter 3
3 Agent Programs that Coordinate Distributed Transactions
     3.1     Starting a Distributed Transaction
     3.2     Rolling Back a Distributed Transaction
     3.3     Accessing Remote Data
     3.4     Step Procedure in C that Acts as an Agent Program
Chapter 4
4 Agent Program Initialization and Exchange I/O Services
     4.1     Authorizing an Agent Program in ACMS
     4.2     Signing In a Task Submitter to ACMS
     4.3     Specifying the Type of I/O
     4.4     Terminating Exchange I/O
     4.5     Signing Out a Task Submitter from ACMS
     4.6     ACMS$INIT_EXCHANGE_IO
     4.7     ACMS$SIGN_IN
     4.8     ACMS$SIGN_OUT
     4.9     ACMS$TERM_EXCHANGE_IO
Chapter 5
5 Submitter Services
     5.1     Preparing to Call a Task
     5.2     Calling a Task
         5.2.1         Passing a Transaction ID (TID)
         5.2.2         Supplying Workspaces to a Task
         5.2.3         Supplying the Correct Number of Task Argument Workspaces
         5.2.4         Accessing Task Workspaces
     5.3     Canceling a Task
     5.4     ACMS$CALL
     5.5     ACMS$CANCEL_CALL
     5.6     ACMS$GET_PROCEDURE_INFO
     5.7     ACMS$START_CALL
     5.8     ACMS$WAIT_FOR_CALL_END
Chapter 6
6 Stream Services
     6.1     Overview of Stream Services
     6.2     ACMS$REPLY_TO_STREAM_IO
     6.3     ACMS$WAIT_FOR_STREAM_IO
Chapter 7
7 Sample Agent Programs
     7.1     C Agent Program that Starts a Distributed Transaction
     7.2     FORTRAN General-Purpose Agent Program
     7.3     C Agent Program that Performs Stream I/O or No I/O
     7.4     BLISS Agent Program that Uses Superseded Services
     7.5     Pascal Agent Program that Uses ACMS$WAIT
Appendix A
Appendix A Superseded Services and Parameters
     A.1     ACMS$CLOSE_RR
     A.2     ACMS$CONNECT_STREAM
     A.3     ACMS$CREATE_STREAM
     A.4     ACMS$DELETE_STREAM
     A.5     ACMS$DISCONNECT_STREAM
     A.6     ACMS$OPEN_RR
     A.7     Superseded Parameters of the Task I/O Argument
         A.7.1         Argument List for a Task That Performs Request I/O
         A.7.2         Argument List for a Task That Passes Only Stream I/O
         A.7.3         Argument List with Selection String, Extended Status, and Terminal I/O Defined
Index
Index
Examples
3-1 A Specialized User-Written Agent
3-2 Task Definition that Calls a Procedure Used as an Agent
3-3 Task Definition that Calls a Procedure to Update Remote Data
3-4 Step Procedure in C that Acts as an Agent Program
7-1 C Agent Program that Starts a Distributed Transaction
7-2 FORTRAN General-Purpose Agent Program
7-3 C Agent Program that Performs Stream I/O or No I/O
7-4 BLISS Agent Program that Uses Superseded Services
7-5 Pascal Agent Program that Uses ACMS$WAIT
Figures
1-1 Agent Programs Submitting Tasks to ACMS
1-2 Stream Connection
3-1 Using a Step Procedure as an Agent Program
4-1 Signing In a Task Submitter to ACMS
5-1 Calling a Task in ACMS
5-2 Arguments Passed for a Task Using a Full Task Argument List
5-3 Arguments Passed for a Task Doing No I/O
6-1 Using Stream Services to Communicate with ACMS
A-1 Arguments Passed for a Task Doing Request I/O
A-2 Arguments Passed for a Task Doing Stream I/O
A-3 Arguments Passed for a Task Doing Terminal I/O

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