Subject: |
Re: epicsExit (); function exits the IOC but the Linux console requires a resest to be operative |
From: |
Andrew Johnson <[email protected]> |
To: |
<[email protected]> |
Date: |
Tue, 30 Jun 2015 13:55:01 -0500 |
Hi again,
On 06/30/2015 01:25 PM, Andrew Johnson wrote:
> I can think of a few ways around the problem, at least one of which we
> ought to implement, but it would be simplest for you to start the IOC
> from a script which runs 'stty sane' immediately after the IOC exits.
> That command should be sufficient and is a little less severe than a
> full terminal reset.
Or you could apply this patch to base...
- Andrew
--
Light thinks it travels faster than anything but it is wrong.
No matter how fast light travels, it finds the darkness has
always got there first, and is waiting for it.
-- Terry Pratchett, Reaper Man
=== modified file 'src/libCom/osi/os/default/epicsReadline.c'
--- src/libCom/osi/os/default/epicsReadline.c 2012-08-31 21:05:14 +0000
+++ src/libCom/osi/os/default/epicsReadline.c 2015-06-30 18:48:04 +0000
@@ -14,6 +14,7 @@
#define epicsExportSharedSymbols
#include "envDefs.h"
+#include "epicsExit.h"
#include "epicsReadline.h"
#define EPICS_COMMANDLINE_LIBRARY_EPICS 0
@@ -84,6 +85,14 @@
char *line;
};
+static enum {rlNone, rlIdle, rlBusy} rlState = rlNone;
+
+static void rlExit(void *dummy) {
+ if (rlState == rlBusy)
+ rl_cleanup_after_signal();
+}
+
+
/*
* Create a command-line context
*/
@@ -92,6 +101,11 @@
{
struct readlineContext *readlineContext;
+ if (rlState == rlNone) {
+ epicsAtExit(rlExit, NULL);
+ rlState = rlIdle;
+ }
+
readlineContext = malloc(sizeof *readlineContext);
if (readlineContext != NULL) {
readlineContext->in = in;
@@ -124,7 +138,9 @@
free (readlineContext->line);
readlineContext->line = NULL;
if (readlineContext->in == NULL) {
+ rlState = rlBusy;
line = readline (prompt);
+ rlState = rlIdle;
}
else {
line = (char *)malloc (linesize * sizeof *line);
- Replies:
- Re: epicsExit (); function exits the IOC but the Linux console requires a resest to be operative Diego Sanz
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- epicsExit (); function exits the IOC but the Linux console requires a resest to be operative Diego Sanz
- Re: epicsExit (); function exits the IOC but the Linux console requires a resest to be operative Andrew Johnson
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