Add LowMemoryNotification to the API on Android platform....

src/heap.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 297 matching lines @@
   Counters::number_of_symbols.Set(symbol_table()->NumberOfElements());
 #if defined(DEBUG) || defined(ENABLE_LOGGING_AND_PROFILING)
   ReportStatisticsAfterGC();
 #endif
 #ifdef ENABLE_DEBUGGER_SUPPORT
   Debug::AfterGarbageCollection();
 #endif
 }
 
 
-void Heap::CollectAllGarbage() {
+void Heap::CollectAllGarbage(bool force_compaction) {
   // Since we are ignoring the return value, the exact choice of space does
   // not matter, so long as we do not specify NEW_SPACE, which would not
   // cause a full GC.
+  bool saved_always_compact_flag = FLAG_always_compact;

[Mads Ager (chromium), 2009/08/19 17:24:23]

I would prefer to not use the flags to signal that a compacting collection is
requested.

[Feng Qian, 2009/08/20 00:06:08]

I had the same thought. There is no obvious way to do it now, how about a TODO
here?

On 2009/08/19 17:24:23, Mads Ager wrote:

+  FLAG_always_compact = force_compaction;
   CollectGarbage(0, OLD_POINTER_SPACE);
+  FLAG_always_compact = saved_always_compact_flag;
 }
 
 
 void Heap::CollectAllGarbageIfContextDisposed() {
   // If the garbage collector interface is exposed through the global
   // gc() function, we avoid being clever about forcing GCs when
   // contexts are disposed and leave it to the embedder to make
   // informed decisions about when to force a collection.
   if (!FLAG_expose_gc && context_disposed_pending_) {
     HistogramTimerScope scope(&Counters::gc_context);
@@ skipping 3552 matching lines @@
 #ifdef DEBUG
 bool Heap::GarbageCollectionGreedyCheck() {
   ASSERT(FLAG_gc_greedy);
   if (Bootstrapper::IsActive()) return true;
   if (disallow_allocation_failure()) return true;
   return CollectGarbage(0, NEW_SPACE);
 }
 #endif
 
 } }  // namespace v8::internal