Make AutoReloadHelper truly "automatic"

by adding the ability to automatically check for modifications at specified intervals.
Using inotify() would be better, but that's not always present.

2 files changed, 15 insertions, 1 deletions

diff --git a/src/FbTk/AutoReloadHelper.cc b/src/FbTk/AutoReloadHelper.cc
index 17124d4..a9f2f5c 100644
--- a/src/FbTk/AutoReloadHelper.cc
+++ b/src/FbTk/AutoReloadHelper.cc
@@ -22,10 +22,18 @@
 #include "AutoReloadHelper.hh"
 
 #include "FileUtil.hh"
+#include "MemFun.hh"
 #include "StringUtil.hh"
 
 namespace FbTk {
 
+AutoReloadHelper::AutoReloadHelper(int interval) {
+    m_timer.setFunctor(MemFun(*this, &AutoReloadHelper::checkReload));
+    m_timer.setInterval(interval);
+    if(interval > 0)
+        m_timer.start();
+}
+
 void AutoReloadHelper::checkReload() {
     if (!m_reload_cmd.get())
         return;
diff --git a/src/FbTk/AutoReloadHelper.hh b/src/FbTk/AutoReloadHelper.hh
index b337a4a..216b3f5 100644
--- a/src/FbTk/AutoReloadHelper.hh
+++ b/src/FbTk/AutoReloadHelper.hh
@@ -28,11 +28,16 @@
 
 #include "Command.hh"
 #include "RefCount.hh"
+#include "Timer.hh"
 
 namespace FbTk {
 
-class AutoReloadHelper {
+class AutoReloadHelper: private NotCopyable {
 public:
+    /**
+     * @param interval time interval (in seconds) between automatic reload checks
+     */
+    AutoReloadHelper(int interval = 0);
 
     void setMainFile(const std::string& filename);
     void addFile(const std::string& filename);
@@ -44,6 +49,7 @@ public:
 private:
     RefCount<Command<void> > m_reload_cmd;
     std::string m_main_file;
+    Timer m_timer;
 
     typedef std::map<std::string, time_t> TimestampMap;
     TimestampMap m_timestamps;