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Implement Runtime#{free,total}Memory()

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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
This commit is contained in:
Johannes Schindelin 2013-11-27 18:56:31 -06:00
parent b246804793
commit 18aeeae0e8
3 changed files with 9 additions and 6 deletions
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1
include/avian/vm/heap/heap.h
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@ -59,6 +59,7 @@ class Heap: public Allocator {
virtual void setClient(Client* client) = 0;
virtual void setImmortalHeap(uintptr_t* start, unsigned sizeInWords) = 0;
virtual unsigned remaining() = 0;
virtual unsigned limit() = 0;
virtual bool limitExceeded(int pendingAllocation = 0) = 0;
virtual void collect(CollectionType type, unsigned footprint,

10
src/classpath-avian.cpp
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@ -593,18 +593,16 @@ Avian_java_lang_Runtime_gc
extern "C" AVIAN_EXPORT int64_t JNICALL
Avian_java_lang_Runtime_freeMemory
(Thread*, object, uintptr_t*)
(Thread* t, object, uintptr_t*)
{
// todo
return 0;
return t->m->heap->remaining();
}
extern "C" AVIAN_EXPORT int64_t JNICALL
Avian_java_lang_Runtime_totalMemory
(Thread*, object, uintptr_t*)
(Thread* t, object, uintptr_t*)
{
// todo
return 0;
return t->m->heap->limit();
}
extern "C" AVIAN_EXPORT void JNICALL

4
src/heap/heap.cpp
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@ -1888,6 +1888,10 @@ class MyHeap: public Heap {
c.immortalHeapEnd = start + sizeInWords;
}
virtual unsigned remaining() {
return c.limit - c.count;
}
virtual unsigned limit() {
return c.limit;
}