updated for R3.14.6
This commit is contained in:
Jeff Hill
@@ -14,16 +14,17 @@ dd Month 2004</h1>
|
||||
|
||||
<h4>EPICS_HOST_ARCH win32-x86-cygwin renamed to cygwin-x86</h4>
|
||||
|
||||
<p> The EPICS_HOST_ARCH win32-x86-cygwin was renamed cygwin-x86 to avoid
|
||||
confusion about what OS interfaces are used on Windows: native win32 or cygwin's
|
||||
emulation of POSIX. Now we have
|
||||
<p>The EPICS_HOST_ARCH win32-x86-cygwin was renamed cygwin-x86 to avoid
|
||||
confusion about what OS interfaces are used on Windows: native win32 or
|
||||
cygwin's emulation of POSIX. Now we have</p>
|
||||
<ul>
|
||||
<li>win32-x86 Uses native win32 interfaces with MS compiler.</li>
|
||||
<li>win32-x86-borland Uses native win32 interfaces with borland compiler.</li>
|
||||
<li>win32-x86-gnu Uses native win32 interfaces with cygwin gnu compiler. (Not implemented yet.)</li>
|
||||
<li>cygwin-x86 Uses cygwin POSIX interfaces with cygwin gnu compiler.</li>
|
||||
<li>win32-x86 Uses native win32 interfaces with MS compiler.</li>
|
||||
<li>win32-x86-borland Uses native win32 interfaces with borland
|
||||
compiler.</li>
|
||||
<li>win32-x86-gnu Uses native win32 interfaces with cygwin gnu compiler.
|
||||
(Not implemented yet.)</li>
|
||||
<li>cygwin-x86 Uses cygwin POSIX interfaces with cygwin gnu compiler.</li>
|
||||
</ul>
|
||||
</p>
|
||||
|
||||
<h4>EPICS_TS_NTP_INET</h4>
|
||||
|
||||
@@ -81,6 +82,7 @@ all dirs of the top directory tree.</p>
|
||||
directories are not removed.</p>
|
||||
|
||||
<h4>epicsString</h4>
|
||||
|
||||
<p>Add epicsSnStrPrintEscaped.</p>
|
||||
|
||||
<h4>epicsExport</h4>
|
||||
@@ -105,6 +107,132 @@ report of the INP channel access connections. Level (0,1,2) produces (a
|
||||
summary report, summary plus unconnected channels, summary plus report of all
|
||||
channels)</p>
|
||||
|
||||
<h4>Channel Access Client Library</h4>
|
||||
<ul>
|
||||
<li>Fixed "subscription updates intermittently do not resume when
|
||||
unresponsive circuit reconnects" bug
|
||||
<ul>
|
||||
<li>Scope:
|
||||
<p>This bug was introduced in R3.14.5 and does not exist in any other
|
||||
release.</p>
|
||||
</li>
|
||||
<li>Symptom:
|
||||
<p>Subscription updates intermittently do not resume depending on
|
||||
circumstances when unresponsive circuit reconnects</p>
|
||||
</li>
|
||||
<li>Additional Information:
|
||||
<p>A decision was made to add a change to EPICS R3.14.5 so that when
|
||||
a TCP circuit is temporarily unresponsive the channel, but not the
|
||||
circuit, is immediately disconnected. This change was determined to
|
||||
be necessary to improve overall system robustness in the face of IOC
|
||||
or network overload. Unfortunately, an error was made when installing
|
||||
these changes. I am sorry about any inconvience that this has caused.
|
||||
Thanks to Ken Evans at the APS for discovering this problem.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
<li>Fixed "ca_replace_access_rights_event() fails if passed a nill function
|
||||
pointer" bug
|
||||
<ul>
|
||||
<li>Scope:
|
||||
<p>This bug probably exists in all R3.14 releases.</p>
|
||||
</li>
|
||||
<li>Symptom:
|
||||
<p>Passing a nill function pointer to
|
||||
ca_replace_access_rights_event() should install a noop handler, but
|
||||
this currently causes a failure. </p>
|
||||
</li>
|
||||
<li>Additional information:
|
||||
<p>Regression tests have been installed to detect this mistake. </p>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
<li>Fixed "CA client library crash when clear channel request occurs in get
|
||||
callback handler" bug
|
||||
<ul>
|
||||
<li>Scope:
|
||||
<p>This bug was introduced in R3.14.5 and does not exist in any other
|
||||
release.</p>
|
||||
</li>
|
||||
<li>Symptom:
|
||||
<p>CA client library crash when clear channel request occurs in get
|
||||
callback handler</p>
|
||||
</li>
|
||||
<li>Additional information:
|
||||
<p>When testing the striptool application, Ken Evans, discovered a
|
||||
bug in the CA client library occurring when a clear channel request
|
||||
occurs in get callback handler. Regression tests have been updated so
|
||||
that this mistake will not slip through testing undetected in a
|
||||
future release. </p>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
<li>Fixed "Double server subscription install when subscription request
|
||||
occurs in connection callback handler" bug
|
||||
<ul>
|
||||
<li>Scope:
|
||||
<p>This bug was introduced in R3.14.5 and does not exist in any other
|
||||
release. Subscription request must be made from within connection
|
||||
callback handler</p>
|
||||
</li>
|
||||
<li>Symptom:
|
||||
<p>It has been discovered (by Ken Evans while testing the gateway)
|
||||
that certain subscription requests were persisting in the gateway
|
||||
after clients had deleted them. This bug causes additional resources
|
||||
to be consumed, but does not result in a crash.</p>
|
||||
</li>
|
||||
<li>Additional information
|
||||
<p>Additional debugging has revealed that the CA client library in
|
||||
this situation inadvertently made the subscription request twice:
|
||||
once at the users’ request, and later on again when the
|
||||
library auto installed subscriptions for disconnected channels.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
<ul>
|
||||
<li>Behavior Changes
|
||||
<ul>
|
||||
<li>Process blocks attempting to exit if the application does not call
|
||||
ca_context_destroy()
|
||||
<p>In EPICS release R3.14 the CA client library is implemented using
|
||||
auxillary threads. If the application does not call
|
||||
ca_context_destroy() these threads will still be running, and
|
||||
dependening on operating system conventions the process may
|
||||
<em>not</em> exit if the main thread exits, but auxillary threads are
|
||||
still running. Note that ca_context_destroy() is functionally
|
||||
equivalent to the depricated call ca_task_exit().</p>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
|
||||
<h4>Channel Access Portable Server (used by the CA gateway and others)</h4>
|
||||
<ul>
|
||||
<li>Fixed "assert fail when writing string through Portable CA Server" bug
|
||||
<ul>
|
||||
<li>Scope:
|
||||
<p>This bug is only present in the portable CA server and so it does
|
||||
<em>not</em> impact IOC based applications. The bug is present in the
|
||||
CA gateway and any portable CA server based application. This problem
|
||||
may have been recently introduced when GDD was patched to properly
|
||||
handle fixed sized strings.</p>
|
||||
</li>
|
||||
<li>Synmptom:
|
||||
<p>Failure, when writing large string through the portable CA server.
|
||||
There appears to be a posssibility of the wrong string being written
|
||||
when a smaller string is used. You may see the following message. </p>
|
||||
<p>A call to "assert (! this->pValue->unreference ())" failed
|
||||
in ..\..\..\..\include\smartGDDPointer.h line 88.</p>
|
||||
</li>
|
||||
<li>Additional Information:
|
||||
<p>Thanks to Stephanie Alison at SLAC for discovering the bug and to
|
||||
Ken Evans at the APS for reminding me to fix it.</p>
|
||||
</li>
|
||||
</ul>
|
||||
</li>
|
||||
</ul>
|
||||
|
||||
<h2 align="center">Changes since 3.14.4</h2>
|
||||
|
||||
<h4>dbtr</h4>
|
||||
@@ -165,7 +293,7 @@ to experiment with other CA client tools.</p>
|
||||
<h4>Stringin record time-stamp soft device support</h4>
|
||||
Add simple device support for converting time to nicely-formatted string
|
||||
using INP field as epicsTimeToStrftime format string:
|
||||
<pre>record(stringin, "$(user):now")
|
||||
<pre>record(stringin, "$(user)now")
|
||||
{
|
||||
field(DESC, "Current time and date")
|
||||
field(DTYP, "Soft Timestamp")
|
||||
|
||||
Reference in New Issue
Block a user