User`s guide

Optimizing Agilent VEE Programs Chapter 12
VEE User’s Guide 459
Execute Program Object
The Execute Program object has these characteristics:
• Easier to use
• Longer start- up time
• Protected address space
• Choice of synchronous or asynchronous execution
• Service of asynchronous events
• Safer (If the program called crashes, you get an error
message.)
• Better for continuous data acquisition
Compiled Functions
Compiled functions, using the Import Library and Call objects,
have these characteristics:
• Short start- up time
• Communication by passing on stack and memory space
shared with VEE
Synchronous execution
• Signals and exceptions not blocked or caught (such as GPF
messages)
• Compiler for textual language required
• More complicated to use. More risk in using. (An
out- of- bounds array error or overwriting memory will cause
VEE to crash.)