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Diffstat (limited to 'backends/plugins/elf/memory-manager.cpp')
-rw-r--r--backends/plugins/elf/memory-manager.cpp62
1 files changed, 31 insertions, 31 deletions
diff --git a/backends/plugins/elf/memory-manager.cpp b/backends/plugins/elf/memory-manager.cpp
index 39f5e9071d..02669b3647 100644
--- a/backends/plugins/elf/memory-manager.cpp
+++ b/backends/plugins/elf/memory-manager.cpp
@@ -20,7 +20,7 @@
*
*/
-#include "common/scummsys.h"
+#include "common/scummsys.h"
#if defined(DYNAMIC_MODULES) && defined(USE_ELF_LOADER)
@@ -28,12 +28,12 @@
#include "common/debug.h"
#include "common/util.h"
#include <malloc.h>
-
-DECLARE_SINGLETON(ELFMemoryManager);
-ELFMemoryManager::ELFMemoryManager() :
- _heap(0), _heapSize(0), _heapAlign(0),
- _trackAllocs(false), _measuredSize(0), _measuredAlign(0),
+DECLARE_SINGLETON(ELFMemoryManager);
+
+ELFMemoryManager::ELFMemoryManager() :
+ _heap(0), _heapSize(0), _heapAlign(0),
+ _trackAllocs(false), _measuredSize(0), _measuredAlign(0),
_bytesAllocated(0) {}
ELFMemoryManager::~ELFMemoryManager() {
@@ -46,23 +46,23 @@ void ELFMemoryManager::trackPlugin(bool value) {
if (value == _trackAllocs)
return;
-
+
_trackAllocs = value;
-
+
if (_trackAllocs) { // start measuring
// start tracking allocations
_measuredAlign = 0;
-
+
} else { // we're done measuring
// get the total allocated size
uint32 measuredSize = _allocList.back().end() - _allocList.front().start;
_heapSize = MAX(_heapSize, measuredSize);
_heapAlign = MAX(_heapAlign, _measuredAlign);
-
+
_allocList.clear();
_bytesAllocated = 0; // reset
-
+
debug(2, "measured a plugin of size %d. Max size %d. Max align %d", measuredSize, _heapSize, _heapAlign);
}
}
@@ -70,7 +70,7 @@ void ELFMemoryManager::trackPlugin(bool value) {
void ELFMemoryManager::trackAlloc(uint32 align, uint32 size) {
if (!_measuredAlign)
_measuredAlign = align;
-
+
// use the allocate function to simulate allocation
allocateOnHeap(align, size);
}
@@ -79,20 +79,20 @@ void ELFMemoryManager::allocateHeap() {
// The memory manager should only allocate once
assert (!_heap);
assert (_heapSize);
-
+
// clear the list
_allocList.clear();
_bytesAllocated = 0;
-
+
debug(2, "ELFMemoryManager: allocating %d bytes aligned at %d as the \
plugin heap", _heapSize, _heapAlign);
-
+
// prepare the heap
- if (_heapAlign)
+ if (_heapAlign)
_heap = ::memalign(_heapAlign, _heapSize);
else
_heap = ::malloc(_heapSize);
-
+
assert(_heap);
}
@@ -106,7 +106,7 @@ void *ELFMemoryManager::pluginAllocate(uint32 size) {
void *ELFMemoryManager::pluginAllocate(uint32 align, uint32 size) {
if (_heap) {
return allocateOnHeap(align, size);
- }
+ }
return ::memalign(align, size);
}
@@ -120,16 +120,16 @@ void ELFMemoryManager::pluginDeallocate(void *ptr) {
// Allocate space for the request in our heap
void *ELFMemoryManager::allocateOnHeap(uint32 align, uint32 size) {
byte *lastAddress = (byte *)_heap;
-
+
// We can't allow allocations smaller than sizeof(Allocation). This could
- // only be from non-plugin allocations and would cause infinite recursion
+ // only be from non-plugin allocations and would cause infinite recursion
// when allocating our Allocation in the list.
if (size <= sizeof(Allocation))
return 0;
-
+
Common::List<Allocation>::iterator i;
for (i = _allocList.begin(); i != _allocList.end(); i++) {
- if (i->start - lastAddress > (int)size)
+ if (i->start - lastAddress > (int)size)
break;
lastAddress = i->end();
// align to desired alignment
@@ -137,20 +137,20 @@ void *ELFMemoryManager::allocateOnHeap(uint32 align, uint32 size) {
lastAddress = (byte *)( ((uint32)lastAddress + align - 1) & ~(align - 1) );
}
}
-
+
// Check if we exceeded our heap limit
// We skip this case if we're only tracking allocations
if (!_trackAllocs && ((uint32)lastAddress + size > (uint32)_heap + _heapSize)) {
debug(2, "failed to find space to allocate %d bytes", size);
return 0;
}
-
+
_allocList.insert(i, Allocation(lastAddress, size));
_bytesAllocated += size;
-
- debug(7, "ELFMemoryManager: allocated %d bytes at %p. Total %d bytes",
+
+ debug(7, "ELFMemoryManager: allocated %d bytes at %p. Total %d bytes",
size, lastAddress, _bytesAllocated);
-
+
return lastAddress;
}
@@ -159,14 +159,14 @@ void ELFMemoryManager::deallocateFromHeap(void *ptr) {
for (i = _allocList.begin(); i != _allocList.end(); i++) {
if (i->start == ptr) {
_bytesAllocated -= (*i).size;
-
- debug(7, "ELFMemoryManager: freed %d bytes at %p. Total %d bytes",
+
+ debug(7, "ELFMemoryManager: freed %d bytes at %p. Total %d bytes",
(*i).size, (*i).start, _bytesAllocated);
-
+
_allocList.erase(i);
break;
}
- }
+ }
}
#endif /* defined(DYNAMIC_MODULES) && defined(USE_ELF_LOADER) */