dbStatic: Added hook routine for dbLoadRecords()

Requested by Tim Mooney for use by Autosave.
See the Release Notes for documentation.

This commit also corrects the decorations for recGblAlarmHook.

src/ioc/db/dbAccess.c

@@ -65,6 +65,10 @@
 epicsShareDef struct dbBase *pdbbase = 0;
 epicsShareDef volatile int interruptAccept=FALSE;
 
+/* Hook Routines */
+
+epicsShareDef DB_LOAD_RECORDS_HOOK_ROUTINE dbLoadRecordsHook = NULL;
+
 static short mapDBFToDBR[DBF_NTYPES] = {
     /* DBF_STRING   => */    DBR_STRING,
     /* DBF_CHAR     => */    DBR_CHAR,
@@ -711,7 +715,11 @@ int dbLoadDatabase(const char *file, const char *path, const char *subs)
 
 int dbLoadRecords(const char* file, const char* subs)
 {
-    return dbReadDatabase(&pdbbase, file, 0, subs);
+    int status = dbReadDatabase(&pdbbase, file, 0, subs);
+
+    if (!status && dbLoadRecordsHook)
+        dbLoadRecordsHook(file, subs);
+    return status;
 }
 
 

src/ioc/db/dbAccessDefs.h

@@ -233,9 +233,14 @@ epicsShareFunc long dbBufferSize(
     short dbrType,long options,long nRequest);
 epicsShareFunc long dbValueSize(short dbrType);
 
+/* Hook Routine */
+
+typedef void (*DB_LOAD_RECORDS_HOOK_ROUTINE)(const char* filename,
+    const char* substitutions);
+epicsShareExtern DB_LOAD_RECORDS_HOOK_ROUTINE dbLoadRecordsHook;
+
 epicsShareFunc int  dbLoadDatabase(
     const char *filename, const char *path, const char *substitutions);
-
 epicsShareFunc int dbLoadRecords(
     const char* filename, const char* substitutions);
 

src/ioc/db/recGbl.c

@@ -45,7 +45,7 @@
 
 /* Hook Routines */
 
-RECGBL_ALARM_HOOK_ROUTINE recGblAlarmHook = NULL;
+epicsShareDef RECGBL_ALARM_HOOK_ROUTINE recGblAlarmHook = NULL;
 
 /* local routines */
 static void getMaxRangeValues(short field_type, double *pupper_limit,

src/ioc/db/recGbl.h

@@ -36,7 +36,7 @@ struct dbCommon;
 
 typedef void (*RECGBL_ALARM_HOOK_ROUTINE)(struct dbCommon *prec,
     epicsEnum16 prev_sevr, epicsEnum16 prev_stat);
-extern RECGBL_ALARM_HOOK_ROUTINE recGblAlarmHook;
+epicsShareExtern RECGBL_ALARM_HOOK_ROUTINE recGblAlarmHook;
 
 /* Global Record Support Routines */