aqhome-react: periodically check for network file changes and reload if necessary.

apps/aqhome-react/net_read.c

@@ -20,6 +20,11 @@
 #include <gwenhywfar/text.h>
 #include <gwenhywfar/debug.h>
 
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+
 
 
 /* ------------------------------------------------------------------------------------------------
@@ -41,6 +46,47 @@ static int _readLink(AQHOME_REACT *aqh, AQHREACT_UNIT_NET *unitNet, GWEN_XMLNODE
  * ------------------------------------------------------------------------------------------------
  */
 
+
+time_t AQHREACT_GetNewestUnitNetFiletime(const AQHOME_REACT *aqh)
+{
+  GWEN_STRINGLIST *sl;
+  time_t resultTime=0;
+
+  sl=AQH_GetListOfMatchingDataFiles("aqhome/react/networks", "*.xml");
+  if (sl) {
+    GWEN_STRINGLISTENTRY *se;
+  
+    se=GWEN_StringList_FirstEntry(sl);
+    while(se) {
+      const char *s;
+  
+      s=GWEN_StringListEntry_Data(se);
+      if (s && *s) {
+        struct stat sb;
+
+        if (stat(s, &sb)==0) {
+          time_t t;
+
+          t=sb.st_mtim.tv_sec;
+          if (t>resultTime)
+            resultTime=t;
+        }
+        else {
+          DBG_WARN(NULL, "Error on stat(%s): %s (%d)", s, strerror(errno), errno);
+        }
+      }
+      se=GWEN_StringListEntry_Next(se);
+    }
+  }
+  else {
+    DBG_ERROR(NULL, "No unit network files");
+  }
+
+  return resultTime;
+}
+
+
+
 AQHREACT_UNIT_NET_LIST *AQHREACT_ReadUnitNetFiles(AQHOME_REACT *aqh)
 {
   GWEN_STRINGLIST *sl;