Date: Fri, 07 Jun 2002 13:42:07 +0200
From: Benjamin Franksen <franksen_at_mail.bessy.de>
Subject: sequencer additions

Hello,

I have written (and tested) an addition to the seq 1.9.5 that was
proposed some time ago in tech-talk. The following features have been
added:

pvPutAsync(<var>)

Perform put operation on <var> using ca_put_callback. Return immediately
after the put operation has been launched. Completion can be checked by
calling pvPutComplete(<var>) inside a when clause. Similar to pvGet with
option -a set.

pvPutComplete(<var>)

Check if a previous pvPutAsync on <var> has completed. Call this inside
a when clause to wait for completion. Similar to pvGetComplete with
option -a set.

pvPutWait(<var>)

Like pvPutAsync but return only after the callback has been received or
timed out. Timeout is after 10 seconds. Similar to pvGet with option -a
not set.

I propose to make these additions available to the community by creating
a new release 1.9.6. I send you the changes via attachment. The file
seq_changes.tgz contains new versions of the files that had to be
changed:

src/gen_ss_code.c
src/seq.h
src/seqCom.h
src/seq_ca.c
src/seq_if.c
src/seq_main.c
src/seq_qry.c
src/seq_task.c

Ben
-- 
Berliner Elektronenspeicherring-Gesellschaft f|r Synchrotronstrahlung
(BESSY) GmbH, Control System Group
Albert-Einstein-Stra_e 15, 12489 Berlin, +49 30 6392 4862, www.bessy.de

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Date: Tuesday, July 23, 2002 3:47 AM
From: Benjamin Franksen <franksen_at_mail.bessy.de>
Subject: Re: seq-1.9.6-beta

I downloaded the tar and tried to 'make' it. This worked only after I
made some changes:

(1) In file src/snc_lex.l, the following appears:

#ifdef SOLARIS
extern	char *strdup(const char *s);	/* not present in string.h */
#else
extern		char *strdup(char *s);	/* not present in string.h */
#endif

But in HP_UX strdup is defined in string.h and not compatible with the
above. So I changed this to

#ifdef SOLARIS
extern	char *strdup(const char *s);	/* not present in string.h */
#else
#ifndef HP_UX
extern		char *strdup(char *s);	/* not present in string.h */
#endif
#endif

[BTW: I very much doubt that all OSes other than SOLARIS have a
declaration compatible with "char *strdup(char *s);" in string.h.]

(2) All four Makefile.Vx under test contain a line

USR_CPPFLAGS += -I $(EPICS_BASE)/include

This breaks compilation here at BESSY (using base 3.13.6). I wonder how
and why this works at other sites. IMHO, it is wrong because it gives
include files from base higher precedence than the local ones. It
*should* be safe to remove this line, since the standard include path
already contains $(EPICS_BASE)/include.

(3) File config/CONFIG contains a line

CROSS_COMPILER_TARGET_ARCHS = mv167 mv177 niCpu030 mv2700

There should be a warning somewhere in the README or on the website,
that it might be necessary to change this according to your local
settings with respect to target platform support. I simply removed the
line.

Cheers,
Ben
-- 
Berliner Elektronenspeicherring-Gesellschaft f|r Synchrotronstrahlung
(BESSY) GmbH, Control System Group
Albert-Einstein-Stra_e 15, 12489 Berlin, +49 30 6392 4862, www.bessy.de