EPICS

DIAMOND EPICS Meeting, 2003 1

EPICS base 3.14OSI: Operating System Independent Support Marty Kraimer

EPICS

DIAMOND EPICS Meeting, 2003 1

Major Problems 3.13=>3.14

VME/VXI: Solution: unbundle all hardware support VxWorks Libraries: Solution: base supplied OSI

libraries VxWorks dynamic loading: solution: Registry Build Environment

Major changes Actually simpler than 3.13 Configure instead of config

VxWorks shell: Solution: iocsh Interrupt Level support

Use global mutex if OS doesn't support

EPICS

DIAMOND EPICS Meeting, 2003 1

Operating System Independent Interfaces

ManyosiSockosiSockWIN32,default,POSIX,vxWorksosiSigPipeIgnor

eosiSigPipeIgnore

RTEMS,WIN32,POSIX,vxWorksosiProcessosiProcessRTEMS,WIN32,default,vxWorksmemLibOsiPoolStatus

RTEMS,WIN32,POSIX,vxWorkstickLib,osiTimeepicsTimeRTEMS,WIN32,POSIX,vxWorkstaskLibepicsThreadRTEMS,WIN32,POSIX,vxWorkssemLibepicsMutexRTEMS,default,vxWorksintLibepicsInterruptDefault,vxWorksSymFindByNam

eepicsFindSymbol

RTEMS,WIN32,POSIX,vxWorkssemLibepicsEventDefault, vxWorksepicsAssertepicsAssertGenericWdLib,epicsTim

erepicsTimer

GenericrngLibepicsRing

EPICS

DIAMOND EPICS Meeting, 2003 1

Some Details Registry

vxWorks symFindByName – bind to global symbol. iocCore dynamically binds record/device/driver/etc

support. While building application:

A perl program generates a C function C function is linked with application. During startup the C function

is called. It registers the support. Build Environment

Extensive changes, more functionality, easier to use. iocsh – simple command interpreter, built in

commands. Interrupt Level Support

iocCore has minimal use. vxWorks,RTEMS real support. Default uses global mutex.

EPICS

DIAMOND EPICS Meeting, 2003 1

Compatibility

Converting R3.13 IOC applications to 3.14. The old 3.13 build rules are still supported. Using old build rules requires few changes.

However all hardware support is unbundled. Ultimately must convert to new rules.

Old CA client interface still supported Many CA client applications have been built

with 3.14.