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alh.notes
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6/17/96 changes
Fixed maximum length of filename on include line.
Added global alarm acknowledgement.
Thu Aug 22 14:59:41 CDT 1996
Bug fix:
"Save as" now writes out ALARMCOUNTFILTER data
Thu Jan 9 08:36:21 CST 1997
In this new alh version, the alarm log file has been changed to a circular log
file with maximum records in the circular file defaulting to 2000. This means
that after 2000 records exist in the alarm log file, the oldest alarm records
will be overwritten when new alarms occur, thus keeping the file size a constant
2000 records. The maximum number of records can be changed using a command line
option m, e.g. "alh -m 5000" will make the alarm log file a circular file with a
maximum of 5000 records. The command "alh -m 0" can be used to allow the alarm
log file to have an infinite number of records.
Thu Jan 16 10:35:16 CST 1997
Bug fix to ALARMCOUNTFILTER
Fri Feb 28 17:26:13 CST 1997
Fixed INCLUDE file bug which caused counts and alarms to be incorrect.
Mon Mar 31 10:41:19 CST 1997
Bug fix to SEVRCOMMAND for UP_ANY and DOWN_ANY.
Bug fix to ALARMCOUNTFILTER.
Fri Sep 12 16:25:02 CDT 1997
Modified Help menu items.
Removed libUnix dependancy (product description shell)
Fixed calloc for SEVRCOMMAND string.
Fixed calloc for treeSym.
Bug fix for $BEEPSEVERITY line.
Alarm Configuration Tool (alh -c ) changes
Removed Undo from Edit menu - more confusing than helpful.
Many changes to get properties window working.
Changes to get cut/paste working.
Bug fixes for Save and SaveAs.
Bug fixes for tree and group window views.
Mon Oct 27 12:28:36 CST 1997
Write of sevr to sevrPVs now done even if acknowledgement not
necessary and now write is done only when sevr has changed.
May - June 1998
Changes made to allow alh to build using Exceed on WIN95/NT
Added new icon
Removed references to getopt
Created Makefile.Host and modified Makefile
date: 1997/09/12 21:23:53
Bug fix for beep severity line placement.
date: 1998/06/01 18:33:21
Modified the icon.
date: 1998/06/02 19:40:43; author: evans; state: Exp; lines: +2 -1
Changed from using Fgmgr to using X to manage events and file
descriptors. (Fdmgr didn't work on WIN32.) Uses XtAppMainLoop,
XtAppAddInput, and XtAppAddTimeOut instead of Fdmgr routines.
Updating areas is now in alCaUpdate, which is called every caDelay ms
(currently 100 ms). Added a general error message routine (errMsg)
and an exception handler (alCAException). Is working on Solaris and
WIN32.
date: 1998/06/04 17:31:58;
Changed system("command &") to _spawnl("command") for WIN32 in
processSpawn_callback. Added test.win32.alhConfig.
date: 1998/06/09 17:10:48; author: evans; state: Exp; lines: +5 -1
Fixed a typo in the exception handler.
Mon Jun 22 12:50:36 CDT 1998
Bug fixes for command line option handling.
Modified debug options in Makefile.Host
Mon Jun 22 13:34:09 CDT 1998
Merged the new alh-options created at DESY MKS group:
-D Disable Writing --- allows running alh without creating/modifying
alarmLog and alarmOpMod files.
-S Passive Mode --- means that operator can't acknowledge alarms
and can't save alarmLog and alarmOpMod files.
-T AlarmLogDated --- 1) alarmLog files will have "date" extensions
like YYYY-MM-DD, and automatical switching
this files in midnight.
2) We add FSbox for search LogFiles in
View->"Alarm Log File Window" and
3) We add search button for finding string at LogFile.
4) We add "Find from <t1> to <t2> with <String>"
widget, which allow search <String> from
all AlLog-files at some directory
-P Printing --- simultaneously printing Alarm to TCP printer
(socket connection and so on). Now we print it
asynchronous, so we add additional task "alh_printer"
and modificate Makefile.Unix.
Wed Jul 1 15:02:21 CDT 1998
Bug fix for STATCOMMAND.
date: 1998/07/07 20:49:01; author: jba; state: Exp; lines: +9 -2
Removed unused variable timeout.
Added alh versioning file version.h.
date: 1998/07/16 17:45:17; author: jba; state: Exp; lines: +2 -1
Moved productDescriptionShell code from libUnix to alh. (libUnix removed)
Changed some XmStringCreateSimple to XmStringCreateLtoR in dialog.c.
Allowed alh to startup with no filename on command line.
date: 1998/07/23 18:22:34; author: jba; state: Exp; lines: +7 -6
Log the connection and access rights changes to alarm log file
Exit routine changes for alarm configuration tool.
Wed Jul 29 12:27:09 CDT 1998
Added "Unacknowledged Alarms Only" display filter.
Mon Aug 3 13:04:40 CDT 1998
Increased config file max line size to 500 chars.
Wed Aug 5 13:10:12 CDT 1998
Added silenceOneHour button.
Moved silenceForever button to Setup menu.
Added logging for operator silence changes.
Reading config file modified to compare whole word of command
(GROUP,CHANNEL,$GUIDANCE,...)instead of first letter.
GUIDANCE modified to display urls. (on netscape browser).
The alhConfig file specification is now either URL guidance -
$GUIDANCE http://www.aps.anl.gov/asd/controls
or text guidance -
$GUIDANCE
This is the first line of text guidance.
This is the second line of text guidance.
$END
Fri Aug 7 17:30:14 CDT 1998
Alh now quits when invalid config file is specified on command line.
Thu Sep 3 14:11:17 CDT 1998
Added new version of browser.c with WIN32 support.
Removed unused variables from file.c.
Made changes for WIN32 build (using Exceed5)
Added url help.
Initial version is 1.1.1, added Albert to credits
Wed Sep 9 11:06:51 CDT 1998
Merged the new alh code changes from CEBAF:
Removed the old -DACCESS_SECURITY tests (pre baseR3.11).
Thu Jan 19 14:14:01 CST 1999
Start of code cleanup. No functional changes. Modified comments, removed
unused code, used c beautifier, etc.
Thu Jan 28 16:57:39 CST 1999
Added silenceForever command line option.
Modified silenceForever menu item to actually silence forever instead
of silencing only for current file.
Modified the url help location.
Thu Mar 11 10:12:06 CST 1999
Added the following alh modifications which were created at DESY MKS group.
New alh-options:
-D Disable Writing --- allows work with alh without possibility
create/modify alarmLog and alarmOpMod files.
-S Passive Mode --- means that operator can't acknowledge alarms
and can't save alarmLog and alarmOpMod files.
-T AlarmLogDated --- 1) alarmLog and OpMod files will have "date" extension
like YYYY-MM-DD, and automatical switching
this files in midnight.
2) We add FSbox for search LogFiles in
View->"Browser for Alarm Log" and
3) We add search button for finding string at LogFile.
4) We add "Find from <t1> to <t2> with <String>"
widget, which allow search <String> from
all AlLog-files at some directory
-P Printing --- simultaneously printing Alarm to TCP printer
(socket connection and so on). Now we print it
asynchronous, so we add additional task "alh_printer"
and modificate Makefile.Unix.
-L locking --- allow multiple work with the same config files,
only one process is real master and write to alhLog
other is slave and they wait until master will not
killed
-0 Database(Oracle) --- simultaneously runtime add Alarm to Database. It
works asynchronous, so we add additional task "alh_DB"
-B - message broadcasting -- allow send messages between operators work with
same config file. Most important case: "REBOOT
MESSAGE": allow don't save alarm during reboot
time. (NOT IMPLEMENTED YET ;) )
Mon Mar 15 08:57:01 CST 1999
ANSI c changes to eliminate warning messages on Linux build.
Tue May 18 10:24:41 CDT 1999
Bug fix for reversed parameters in alLogChanChangeMasks.
Added Silence Forever status to message area.
Fri May 28 15:08:18 CDT 1999
Bug fix for forcePV. Removed alInitialize.c.
Wed Jun 2 13:16:33 CDT 1999
Bug fix for area reinitialization after a new config file opened
which sometimes caused a core dump.
Removed alAllocGroup/alAllocChan (alCreateGroup/alCreateChannel used).
Current Alarm History data no longer global, now part of area structure.
Mon Jun 7 09:20:02 CDT 1999
Modified definition of netscape path.
date: 1999/07/08 14:35:02; author: lange;
+= CMLOG support
Mon Jun 21 15:15:03 CDT 1999
Start cleanup of axRunW.c file.
Tue Jun 22 11:12:51 CDT 1999
Some cleanup of line.h and line.c files.
Wed Jul 14 16:24:06 CDT 1999
Updates to handle global acks and ackt fields and related changes.
Created version 1.2.1
date:1999/07/21 23:02:10
Cdev and Exceed changes.
Bug fixes for command line options.
Corrected cmlog function names.
date: 1999/07/22 21:30:42
Fixed usage text.
Two CMLOG fixes
Fixed the context setting for value.
Force new alarm processing when channel is initally disconnected.
date: 1999/07/23 14:38:52; author: lange;
+= -filter, -mainwindow; fixed cmdline option error output
date: 1999/07/26 15:32:25; author: lange;
Small CMLOG related changes
Changed CMLOG browser call to allow args
GetChannelLine() bugfix
Update current mask string
date: 1999/07/28 21:26:19; author: jba;
Message area text changes.
Don't log the initial connection.
date: 1999/08/13 19:43:46; author: lange; cmlogrc.ALH
changed host tag, added more tags
date: 1998/06/01 18:33:24; author: evans; alh.ico
Modified the icon.
Wed Oct 6 16:13:50 CDT 1999
Process forcePV ca value event only if value has changed.
Thu Oct 14 10:11:23 CDT 1999
Fixed alarm channel count for INCLUDE files.
Fix for ca put of ACKT values when config file is read.
Fix for alarm sevr of initially canceled and disabled channels.
Created version 1.2.2
Tue Oct 26 09:14:53 CDT 1999
Run window now displays color of highest unack alarm.
Process initial alarm event for ALARMCOUNTFILTER channels.
Tue Nov 2 14:10:45 CST 1999
Don't do caput for acknowledgment if channel is not connected.
Wait for a 1 second period with no connections before writing
config file ackt settings.
Fri Nov 12 16:27:37 CST 1999
Don't set unack global sevr from alarm events if curMask.Ack==true
Created version 1.2.3
1999/12/08 19:41:11; author: jba
Changed win32 compile option to start with slash for consistancy.
Initialized parent_link to null.
Mon Apr 24 09:40:43 CDT 2000 - V1.2.4
Simplified alHighestSystemSeverity calculation.
Added new alarm event error checking.
Created version 1.2.4
Wed Aug 9 09:16:57 CDT 2000 - V1.2.5
Fixed some memory leaks in scroll.c and dialog.c and file.c.
Removed change to group curSevr in alView.c. Added CMLOG_BIN
definition and added -R ld option for cmlog in Makefile.Host.
Added acks and ackt fields to countFilter structure in alLib.h.
Modified the handling of new events when a count Filter exists,
see comment table in alLib.c (near line 630 ).
Created version 1.2.5
2000/08/15 17:00:20; author: lange
Added startup code for HP C++-Linker
Tue Sep 26 10:30:55 CDT 2000
Added audio for WIN32 and fixed some memory leaks.
Thu Oct 5 14:49:17 CDT 2000 - V1.2.6
Added audio for solaris.
Created version 1.2.6
2000/10/09 21:06:33; author: jba
Made changes for building with solaris 6.
Tue Oct 17 14:08:17 CDT 2000 - V1.2.7
Change to build with baseR3.14.
Created version 1.2.7
Tue Oct 24 16:01:07 CDT 2000 - V1.2.8
More changes to build with baseR3.14.
Created version 1.2.8
Tue Feb 13 09:24:37 CST 2001 - V1.2.9
Fixed bug in new alarm event filtering.
Removed update of current alarm history when window not displayed.
Tue Feb 20 09:42:46 CST 2001 - V1.2.9
Reinstated update of current alarm history when window not displayed.
Created version 1.2.9
2001/10/09 18:07:47; author: evans
Fixed code to not use ALH_Pixmap as XmNiconPixmap for WIN32, since Exceed
trashes it.
2002/01/17 22:00:04; author: jba
Changed HOST_ARCH to OS_CLASS in Makefile.Host
2002/02/04 19:56:15; author: jba
Set ellNext parm cast to ELLNODE* to avoid compiler warnings.
2002/05/17 20:51:09; author: jba
Added const to avoid compiler warnings.
Tue Jul 23 16:21:37 CDT 2002
Added license information to source files. Added LICENSE file.
Created version 1.2.10
Wed Sep 11 10:20:10 CDT 2002
Added missing notes to alh.notes file.
Initialized FILE fl and fo to zero to avoid compiler warnings.
Mon Jan 20 09:18:18 CST 2003
Add ability to set and change beep severity for channels and groups.
Tue Jan 21 15:53:59 CST 2003
Simplify Beep Severity dialog: set value immediately and remove Apply and Ok.
Add ability to set group/channel ack/noAck masks to noAck for one hour.
Add ability to disable a group/channel forcePV.
Mon Jan 27 13:52:29 CST 2003
More changes for noAck for one hour timer.
Allow "NE" for forcePV reset value ( NE forcePV force value).
Tue Feb 11 15:28:34 CST 2003 ALH_1_2_11Beta1
More changes for noAck for one hour timer. New Action menu item
"NoAck for One Hour". Channel have Ack mask set to reset value
after one hour. Ability to permanently noAck/Ack a group or
channel. Groups or channels with 1 hour timer will display an
'H' in Ack mask field. A new no-Ack timer will cancel existing
timers in subgroups and channels. When timer expires it will
not reset any subgroups or channels that have an existing (i.e.
more recent) timer.
The text "ALH" has been added to the old Setup Beep Severity
menu item and to the Beep Severity line in the main window message
area to show that it is not a group or channel beep severity.
Now when a channel is enabled after being disabled and it is not
in an alarm state but does have unacknowledged transient alarms, an
automatic acknowlegment is sent to the channel and the auto acknowledge-
ment is logged in the opMod file.
Fri Feb 14 16:24:03 CST 2003 ALH_1_2_11Beta2
Added H indicator in mask for noAck 1hr timer
Added a config file heartbeatPV.
Thu Feb 27 10:59:56 CST 200 ALH_1_2_11Beta3
ForcePV variables removed grom gcData and forcePV structure created.
Added NE as a valid value for forcePV resetValue.
Added CALC facility to forcePV. This allows algebraic, relational, and
logical operations on up to 6 pvs. The result of the operations is then
compared to the forcePV forceValue and resetValue to determine whether
to set group/channel masks to the forceMask or resetMask.
Fri Feb 28 16:38:19 CST 2003 ALH_1_2_11Beta4
Changed opMod file output. Now contains top group name followed by
group or channel name each followed by a colon or just a colon if
the name is not available.
Mon Mar 3 09:24:38 CST 2003 ALH_1_2_11Beta5
Moved channel beepSevr modified indicators to preceed possible return.
Added code for display of highest existing beepSevr in sub groups and channels
Modified alarm log file output. Now calculate alarmLogFileStringLength.
Changed fopen of alarm log file from r+ to w+(truncate or create).
Modified forcePV opMod log messages text.
Wed Sep ? 12:55:31 ALH_1_2_12
Created tag ALH_1_2_12 for a requested distribution tar file.
Wed Oct 8 16:01:03 CDT 2003 ALH_1_2_13
Code changed to reduce warning messages.
Write "N/A" to cmlog when blink string is missing.
Fixes made to Force Mask popup.
Removed old sccs id variable.
Wed Feb 25 22:28:56 CDT 2004 ALH_1_2_14
Change conditional from WIN32 to HAVE_SYSV_IPC. Add appropriate conditional
to alh.h to define HAVE_SYSV_IPC as appropriate. Ensure that alh.h is
included before conditionals depending on HAVE_SYSV_IPC.
Tue Jun 1 15:41:38 CDT 2004 ALH_1_2_15
Added -desc_field option. - Albert Kagarmanov
Added acknowledge PV support - Albert Kagarmanov
Portablility change for darwin-ppc - Eric Norum
Fri Jul 16 16:22:32 CDT 2004 ALH_1_2_16
Added comments and void return value for getDescriptionRecord.
Saved ca alarm event data and added a ca reconnection event (for R3.14.6).
Thu Jul 22 11:02:33 CDT 2004 ALH_1_2_17
Removed menu tearoff feature. Tornoff menus cannot be closed.
Mon Aug 2 09:24:36 CDT 2004 ALH_1_2_18
Modified save of ca alarm event data to save only at a disconnect event.
Tue Aug 10 10:48:18 CDT 2004 ALH_1_2_19beta1
Skip restoring saved alarm data at initial connection.
Popup error msg for unconnected SEVRPV, FORCEPV, ACKPV, HEARTBEATPV
Popup error msg when no read access for FORCEPV
Popup error msg when no write access for SEVRPV, ACKPV, HEARTBEATPV
Popup error msg when no read or write access for alarm channels
Added ca clear channel for Acknowledge PV.
Popup error msg for invalid SEVRPV, FORCEPV, ACKPV, HEARTBEATPV input
Fri Oct 29 14:54:00 CDT 2004 ALH_1_2_19beta2
Set main window background color pink if Silence For One Hour is active.
Tue Apr 5 10:06:27 CDT 2005
Added "ALH" to popup dialogs and added timestamp to popup error dialog.
Tue Jun 21 13:23:04 CDT 2005 ALH_1_2_20
Silence One Hour:
Set color of newly created row widgets to color of parent widget.
Change color of ALL widget children except ack button, sevr indicator,
and name push button.
Write errMsg text to opMod log file when errors occur.
Remove extra carriage returns in opMod log file.
Remove group and channel data from opMod log message if they do not exist.
Print "Setup Config File" to opMod log before config file error messages.
Open file for scroll window reading as r. Removed comments. Cleaned code.
Set cursor position to last line written, even in circular files.
Create new dialog when a dialog is requested. Destroy dialog when closed.
Mon Dec 5 10:23:24 CST 2005
Added alh_printer libraries socket & nsl for R3.14.8 build to Makefile.Host.
Fri Feb 23 09:31:05 CST 2007 ALH_1_2_21
Fixed core dump after pushing a Silence button on linux. (Initialized
numChildren before getting XmNnumChildren.)
Portability changes for darwin.
Moved code for alCaCancel.
Updated to R3.14 Makefiles.
Tue Jun 26 10:27:36 CDT 2007 ALH_1_2_22
Merged the follwing sns modifications into alh code:
alCA.c - sinclair
Modified code in function description_callback
change pend io time from 0.5 to 5.0 seconds
add pend event poll after each pend io
alLog.c, file.c - kasemir
Added xml flag. Log file is more XML-ish
alLog.c, file.c - sinclair
added format specifier -xml
awAlh.c, awView.c - sinclair
modified code associated with clipboard copy operation
on drag-and-drop operation, attempt to put pv name into
primary selection buffer
added code so a drag-and-drop operation displays the group
name or pv name; this may be used to examine the pv name associated
with an alias; to do this I needed to change user data associated
with group and pv name buttons
modified code to accommodate the above change in user data
code cleanup
axArea.h - axRunW.c - sinclair
Environment variable ALHMAINFONT may be used to set top level button font
e.g. export ALHMAINFONT='-*-utopia-bold-r-normal--0-720-75-75-p-0-*-*'
Added code to display mask of top group in top level button label
alLib.c - sinclair
code cleanup
added serveral NULL pointer checks
alLib.c - axRunW.c - sinclair
show force mask on top button only when at least one bit is set
axRunW.c.c - sinclair
code cleanup
changed if/then test condition
Enclose top level button mask info in < >
process.c - sinclair
Change action separator from "|" to "!"
make command menu a child of topLevelShell
add code to allow multiple commands to be specified for one
command (corresponding to the old syntax) - execute when button is
pressed
multiple commands are designated using the following syntax
cmd 1 name|cmd 1 string|cmd 2 name|cmd 2 string|...cmd n name|cmd n string
for multiple commands, popup menu and execute the selected command
scroll.c - sinclair
remove static qualifier from Strncat
change "/" to '/' in comparison
code cleanup
use configuration directory (if given) when building include file names
set maximum config file line length to 1023
added code to recursively display contents of configuration include
files
Tue Jun 26 14:16:33 CDT 2007 ALH_1_2_23
Return val for calcPerform/postfix changed to long to match prototype
For WIN32 set strtok_r to strtok_s
Mon Nov 5 15:56:00 CST 2007
Bug fix. Initialized numChildren to zero in case the resource XmNnumChildren
is not defined for some Widgets.
Mon Nov 26 10:11:55 CST 2007
Put ALH User's Guide under CVS control in alh subdirectory documentation.
Updated User's Guide with SNS changes. (see entry of Jun 26).
Tue Feb 5 10:19:30 CST 2008 ALH_1_2_24
Portability changes for 64bit builds.
Wed Aug 13 14:34:23 CDT 2008
Added callback procedures to the file selection dialogs to be called when
the window manager protocol WM_DELETE_WINDOW is received.
Mon Aug 18 15:59:03 CDT 2008
Added usage of a BROWSER environmant variable which defines the browser
command (used to display the ALH User's Guide when Help is selected).
Removed Xp from need libraries for linux builds.
Thu Oct 15 09:44:40 CDT 2009 ALH_1_2_25
Removed usage of YES macro for build with base R3.14.11.
Added comment in alAudio.c to uncomment/modify for alarm sounds.
Tue Oct 27 15:17:33 CDT 2009
Changes to avoid compile warning messages.
Fri Jul 9 15:14:24 CDT 2010 ALH_1_2_26
Master/slave locking bug fix from Andreas Luedeke.
Rewrote doubleclick code so it works the same on all operating systems.
Portablility changes.
Bug fix: set current value to -999 to recalculate and test the force pv
expression after user changes are Applied from the ForcePV dialog box.
Core dump bug fix: Test for existance before trying to modify runtime
window string. Alh may be started with main window only (-mainwindow).
Removed references to Alarm Configuration Tool in ALH Users Manual.
Fri Feb 25 14:23:01 CST 2011 ALH_1_2_27
Use alBeep instead of calling XBell directly. Changed call to XBell
to call to XkbBell. Portability changes. alLog.c: Added static qualifier
to local routines. Remove extra carrige return in alarm log output.
Check for _lock_flag also when checking masterFlag.
Tue Jul 26 13:56:13 CDT 2011
Changed code to allow up to 99 chars in group, channel, and pv names.
Modified Current Alarm Histroy Window to use 7x14 fixed font and to
truncate long channel names to 31 characters. Fixed formating bug in
error messagelogs. Modified main windows and popup Action dialogs to
allow long group/channel names and pv names.
Tue May 22 16:29:19 CDT 2012 ALH_1_2_28
Added following changes and command line options by Andreas Luedeke
Changed silenced bg color from lightpink to blue
Add file name to config file open error message.
-p file use wave file for sound instead of alarm beep (OS dependent)
-maskcolor Print mask colored when channel/group contains silencing flag
makes it easier to find all canceled/disabled/noAck channels.
-Lfile dir lockfile directory name for lock files [configdir]
Thu Jun 21 15:26:50 CDT 2012 ALH_1_2_29
Changed silenced and noack bg color from blue to lightpink.
Modified popup dialogs for WIN32 to allow use with Xming X server.
Wed Aug 29 16:32:14 CDT 2012 ALH_1_2_30
Increased size of group and channel config file input fields. Portability
changes. Bug fix in initialization of psetup. Change darwin default to
HAVE_SYSV_IPC.
Thu Nov 29 15:13:46 CST 2012 ALH_1_2_31
Added code to browser.c (from <[email protected]>) and Makefile to use
xdg-open on Linux systems to open an url from alh if the compiler macro
USE_XDGOPEN was defined during the build.
Fixed bugs in AlarmLogDated (-T option) code.
Mon Apr 22 11:05:07 CDT 2012
Modified text in 2 error messages. Changed alarm bell function from Xbell
to XkbBell. Used more modern tools to open default browser. Changed
silenced background color back to blue.
Tue Apr 23 10:57:01 CDT 2013
SilenceOneHour feature changed: Added setup/select_silence_interval menu
item with interval selections 5, 10, 15, 30, 60 minutes. SilenceOneHour
button text now shows selected interval (default is 1 hour). Pressing
silence button on message window will silence beeps for selected time
interval. Changing interval selection will terminate an existing silence
interval.
Wed Apr 24 16:11:47 CDT 2013
Added two more 'ALARMCOUNTFILTER counts seconds' filters. If counts is
zero, counts is not used in determining alarm/no-alarm state. Seconds only
are used for a channel going in and out of alarm. If counts is -1, seconds
only are used for channel going from no-alarm to alarm state. Change in
channel from alarm to no-alarm state is not filtered.
Thu Apr 25 10:22:57 CDT 2013
Changed log file handling on alh startup. Now when error opening alarmLog or
opModLog file, an error message popup will be displayed and alh will continue
without the file. The file can be opened/created after startup via setup menu.
Tue May 14 11:19:07 CDT 2013 ALH_1_2_32
Minor text changes. Updated User's Guide text and images.
Mon May 20 13:49:51 CDT 2013 ALH_1_2_33
Fixed code for the -maskcolor command line option. Accidental commit on May 14
broke the -maskcolor code.
Thu Jul 17 14:10:37 CDT 2014 ALH_1_2_34
Changed way beeping option -p <fn> works. Used fork() and execlp() to get play
process to run in the background. Ignore SIGCHLD signals so alh doesn't have to
wait for child processes to finish.
Mon Aug 25 14:09:19 CDT 2014 ALH_1_2_35
Changed beeping option with -p again. Used system() with '&' at command
end. Created a "test beep" setup menu item to test the beeping sound.
An error message is displayed if the command line sound file cannot be
opened for read access. Changed default silence interval to .5 hour.