HP 3000 Manuals HP 3000 Manuals
Table of Contents Interprocess Communication:Programmer's Guide Interprocess Communication:Programmer's Guide : COPYRIGHT NOTICE What is Interprocess Communication? Purposes of IPC Ways to Perform IPC IPC Using Job Control Words and Other Variables Types of Variables Relationship of JCWs and Variables Variable Intrinsics Variable Commands Job Control Words Job Control Word Intrinsics Job Control Word Commands Special Considerations Additional Discussion IPC Using File System Intrinsics Characteristics Creating a Message File How To Use IPCA Simple Case Special Cases of IPC Multiple Concurrent Readers or Writers Preventing Deadlocks Writer Identification Extended Wait Timeouts Nondestructive Reads Forcing Records To Disc NOWAIT I O NOWAIT I O Intrinsics Aborting NOWAIT I O Limitations Examples Software Interrupts ExampleUse of Software Interrupts Software Interrupt Intrinsics Software Interrupt Initialization Interrupt Handler Main Line Code Disarming Software Interrupts Restrictions Sample ProgramUse of Software Interrupts Interprocess Communication Via the MAIL Facility Restrictions Definition of Mail Mail Transfer Process Testing Mailbox Status Sending Mail Receiving (Collecting) Mail Avoiding Deadlocks Features of Intrinsics for Message Files Intrinsics Not Allowed for Message Files Intrinsics Exclusive to IPC A Note On Syntax Sample Programs: WAIT I O Sample Programs: NOWAIT I O Sample Programs: Software Interrupts SPL Examples Pascal Examples