Fixed|Console|libdoomsday: Timing the execution buffer

If there were lots of scheduled commands, an inordinate amount of
time was spent looping in the execution buffer. Now the time is checked
once and commands are executed accordingly.

doomsday/libdoomsday/src/console/exec.cpp

@@ -343,23 +343,25 @@ static dd_bool Con_CheckExecBuffer(void)
 {
 #define BUFFSIZE 1024 /// @todo Rewrite all of this; use de::String. -jk
 
-    dd_bool allDone;
+//    dd_bool allDone;
     dd_bool ret = true;
-    int     i, count = 0;
+    int     i; //, count = 0;
     char    storage[BUFFSIZE];
 
     storage[255] = 0;
 
-    do                          // We'll keep checking until all is done.
+//    do                          // We'll keep checking until all is done.
     {
-        allDone = true;
+        //allDone = true;
 
-        // Execute the commands marked for this or a previous tic.
+        TimeDelta const now = TimeDelta::sinceStartOfProcess();
+
+        // Execute the commands whose time has come.
         for(i = 0; i < exBuffSize; ++i)
         {
             execbuff_t *ptr = exBuff + i;
 
-            if(!ptr->used || ptr->when > TimeDelta::sinceStartOfProcess())
+            if(!ptr->used || ptr->when > now)
                 continue;
 
             // We'll now execute this command.
@@ -369,17 +371,17 @@ static dd_bool Con_CheckExecBuffer(void)
 
             if(!executeSubCmd(storage, ptr->source, ptr->isNetCmd))
                 ret = false;
-            allDone = false;
+            //allDone = false;
         }
 
-        if(count++ > 100)
-        {            
+//        if(count++ > 100) break; // Don't hang here.
+/*        {
             DENG_ASSERT(!"Execution buffer overflow");
             LOG_SCR_ERROR("Console execution buffer overflow! Everything canceled!");
             Con_ClearExecBuffer();
             break;
-        }
-    } while(!allDone);
+        }*/
+    } //while(!allDone);
 
     return ret;
 #undef BUFFSIZE