Add simple device support for converting time to nicely-formatted string.

src/dev/softDev/devTimestampSI.c

@@ -0,0 +1,46 @@
+/*
+ * Stringin device support for EPICS time stamps
+ *
+ * $Id$
+ */
+
+#include <stdio.h>
+#include <epicsTime.h>
+#include <stringinRecord.h>
+#include <alarm.h>
+#include <devSup.h>
+#include <recGbl.h>
+#include <epicsExport.h>
+
+static long
+read_stringin (struct stringinRecord *psi)
+{
+    int l;
+
+    recGblGetTimeStamp(psi);
+    l = epicsTimeToStrftime(psi->val, sizeof psi->val, psi->inp.value.instio.string, &psi->time);
+    if (l >= sizeof psi->val) {
+        psi->udf = 1;
+        recGblSetSevr(psi,UDF_ALARM,INVALID_ALARM);
+        return -1;
+    }
+    psi->udf = 0;
+    return 0;
+}
+
+struct {
+    long        number;
+    DEVSUPFUN   dev_report;
+    DEVSUPFUN   init;
+    DEVSUPFUN   init_record; /*returns: (0,2)=>(success,success no convert)*/
+    DEVSUPFUN   get_ioint_info;
+    DEVSUPFUN   read_stringin;/*(0)=>(success ) */
+} devTimestampSI = {
+    6,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+    read_stringin
+};
+epicsExportAddress(dset,devTimestampSI);