Performance

- Added std::string::reserve in high-use locations.
- Used Task::get_date over Task::get where possible.
- Added missing code (bug) for waking up any completed tasks that are freshly
  waited.
- Greater use of STL methods for bulk copying.

src/File.cpp

@@ -200,6 +200,7 @@ void File::read (std::string& contents)
   if (in.good ())
   {
     std::string line;
+    line.reserve (1024);
     while (getline (in, line))
       contents += line + "\n";
 
@@ -217,6 +218,7 @@ void File::read (std::vector <std::string>& contents)
   if (in.good ())
   {
     std::string line;
+    line.reserve (1024);
     while (getline (in, line))
       contents.push_back (line);
 
@@ -357,6 +359,7 @@ std::string File::read (const std::string& name)
   if (in.good ())
   {
     std::string line;
+    line.reserve (1024);
     while (getline (in, line))
       contents += line + "\n";
 
@@ -375,6 +378,7 @@ bool File::read (const std::string& name, std::string& contents)
   if (in.good ())
   {
     std::string line;
+    line.reserve (1024);
     while (getline (in, line))
       contents += line + "\n";
 
@@ -394,6 +398,7 @@ bool File::read (const std::string& name, std::vector <std::string>& contents)
   if (in.good ())
   {
     std::string line;
+    line.reserve (1024);
     while (getline (in, line))
       contents.push_back (line);
 

src/TDB2.cpp

@@ -1470,8 +1470,8 @@ void TDB2::revert ()
 ////////////////////////////////////////////////////////////////////////////////
 // Scans the pending tasks for any that are completed or deleted, and if so,
 // moves them to the completed.data file.  Returns a count of tasks moved.
-// Now reverts expired waiting tasks to pending.
-// Now cleans up dangling dependencies.
+// Reverts expired waiting tasks to pending.
+// Cleans up dangling dependencies.
 //
 // Possible scenarios:
 // - task in pending that needs to be in completed
@@ -1508,13 +1508,14 @@ int TDB2::gc ()
          ++task)
     {
       status = task->get ("status");
-      if (status == "pending" || status == "recurring")
+      if (status == "pending" ||
+          status == "recurring")
       {
         pending_tasks_after.push_back (*task);
       }
       else if (status == "waiting")
       {
-        Date wait (task->get ("wait"));
+        Date wait (task->get_date ("wait"));
         if (wait < now)
         {
           task->set ("status", "pending");
@@ -1540,12 +1541,26 @@ int TDB2::gc ()
     {
       status = task->get ("status");
       if (status == "pending" ||
-          status == "waiting")
+          status == "recurring")
       {
         pending_tasks_after.push_back (*task);
         pending_changes = true;
         completed_changes = true;
       }
+      else if (status == "waiting")
+      {
+        Date wait (task->get_date ("wait"));
+        if (wait < now)
+        {
+          task->set ("status", "pending");
+          task->remove ("wait");
+          pending_tasks_after.push_back (*task);
+          pending_changes = true;
+          completed_changes = true;
+        }
+
+        pending_tasks_after.push_back (*task);
+      }
       else
       {
         completed_tasks_after.push_back (*task);
@@ -1555,17 +1570,16 @@ int TDB2::gc ()
     // Only recreate the pending.data file if necessary.
     if (pending_changes)
     {
-      pending.clear ();
+      pending._tasks = pending_tasks_after;
       pending._dirty = true;
       pending._loaded_tasks = true;
       _id = 1;
 
-      for (task = pending_tasks_after.begin ();
-           task != pending_tasks_after.end ();
+      for (task = pending._tasks.begin ();
+           task != pending._tasks.end ();
            ++task)
       {
         task->id = _id++;
-        pending._tasks.push_back (*task);
       }
 
       // Note: deliberately no commit.
@@ -1574,15 +1588,10 @@ int TDB2::gc ()
     // Only recreate the completed.data file if necessary.
     if (completed_changes)
     {
-      completed.clear ();
+      completed._tasks = completed_tasks_after;
       completed._dirty = true;
       completed._loaded_tasks = true;
 
-      for (task = completed_tasks_after.begin ();
-           task != completed_tasks_after.end ();
-           ++task)
-        completed._tasks.push_back (*task);
-
       // Note: deliberately no commit.
     }