Release History for releases that work with EPICS base 3.14.
--------------

Version 2.0.12 contains the following changes:

Directory dependencies to permit building with the parallel make option -j.

Library dependencies changes to match EPICS Base R3.14.10.

Added the routine seqcaStats to src/seq/seq_qry.c

Cleaned up compiler warnings in src/snc


Version 2.0.11 contains the following changes:

A bugfix in src/seq/seq_ca.c found by Stephanie Allison and Till Straumann.

Moved the PV build configuration variables from configure/RELEASE to the new
CONFIG_SITE file, and moved CONFIG_APP functionality into CONFIG. Also set
CHECK_RELEASE to YES by default in configure/Makefile.


Version 2.0.10 contains the new diagnostic

seqcar(verbosity)

This produces report about all the channel access connections from sequence
programs.


Version 2.0.9 contains the following changes

seq_connect now initializes assignCount and numMonitoredChans BEFORE connecting
to the PVs. With the previous versions it was possible to signal that everything
was connected and the first monitor received before it actually happened.


Version 2.0.8 contains the following changes

seq_main.c was casting a pointer to an int. On some architectures this caused
a warning message.

Support for cygwin32 om windows was added.

test/pv/ was still still using osiThread.h. This is replaced bt epicsThread.

test/simple and test/validate now use EPICS_BASE_IOC_LIBS instead
of EPICS_BASE_HOST_LIBS.


Version 2.0.7 contains the following changes

A sequence program could wait up to 20 seconds before all PVs connect and
the first monitor occurs for each monitored PV. This could happen even
if all PVs are local. This is now fixed.


Version 2.0.6 contains the following changes.

When looking to see if all PVs have connected it now looks for first monitor coming back as well as all PVs connecting. This prevents the chance of using the
value of a PV before it is given a value.


Version 2.0.5 of the sequencer contains the following changes:

Replaced the C++ static constructor used for command registration with a
generated registrar routine that must be listed in an IOC's xxxInclude.dbd file
for use on on non-vxWorks systems.  This approach permits sequence programs to
be placed in an external support library and pulled in automatically by adding
the registrar() statement in the xxxInclude.dbd and linking the IOC application
against that library.  For a sequence program that starts:
    program demo ...
the dbd file should contain the statement
    registrar(demoRegistrar)
This is only required for applications that use the iocshell, vxWorks IOCs will
work as before.


Modifications to the demo/test programs needed to run these under Base
R3.14.3.

The config directory has been removed.

Replaced devSequencer.c with version supplied by Kukhee Kim, SLAC


Version seq-2-0-4 of the sequencer

Changes have been made to follow the R3.14.2 build rules.
Generate an example application to see how to build sequencer applications.
Note that this version requires R3.14.2 of base.


Version 2.0.1 of the Sequencer

Marty Kraimer


Eric Norum, Janet Anderson, and I spent some time making the sequencer work
with EPICS release 3.14.0alpha2. We are NOT responsible for the sequencer.
Version 2.0.1 should be considered an interim release until
Greg White and Ron Chestnut have time to become familiar with
the changes we made.

We did not update the SNL/SEQ manual. The following breifly describes
documentation changes needed for the 2.0.0 reference manual.

New Compiler Option

+i Code will be generated to automatically register sequence functions
and state programs. This is the default

-i Do not generate registration code. Only useful on vxWorks to save a small amount of memory.

Compiling and linking a state program under Unix.

The exampleApp supplied with base demonstrates how to build sequence programs
that work with epics databases.
It also shows how to build a sequence program that runs without databases.

test/simple also shows how to build a sequence program that runs 
without databases running in the same process.

The main program generated by the +m compiler options looks like.

int main(int argc,char *argv[]) {
    char * macro_def;
    epicsThreadId threadId;
    int callIocsh = 0;
    if(argc>1 && strcmp(argv[1],"-s")==0) {
        callIocsh=1;
        --argc; ++argv;
    }
    macro_def = (argc>1)?argv[1]:NULL;
    threadId = seq((void *)&snctest, macro_def, 0);
    if(callIocsh) {
        iocsh(0);
    } else {
        epicsThreadExitMain();
    }
    return(0);
}


Such a program is invoked via the call like

<name> -s "xxx=xxx,..."

If the -s option is specified iocsh is started. This allows the user
to issue sequence commands like seqShow. If the -s option is not given,
the shell is not started. If a program is started as a background process
the -s option should not be specified.

The other option argument is macro substitutions.

Comments about changes made for release 2.0.1

I think config should be removed. Just require 3.14 and later


in test/simple and test/validate
     assign v to "grw:xxxExample";
     changed to
     assign v to "{user}:xxxExample";

in src/dev
    dev.c renamed to devSequencer.c
    seq.dbd renamed to devSequencer.dbd

in src/snc
    The generated main program is different. See below
    New option -i. See above
    Made many changes to get rid of warning messages.

in src/seq
    seq now returns an epicsThreadId
    all addesses now printed with %p
    several epicsPrintf replaced with printf.
    Got rid of simple shell supplied by seq. No longer needed.

in src/pv

    Only LIBRARY = pv is generated. It includes the stuff
    that was in pvKtl, pvCa, and pvFile if they are requested.
    This was done because the old way caused a circircular dependency
    that is not accepted by windows.