lmem: Implement UnitHeap, ExpHeap (#823)

* lmem: implement ExpHeap

* lmem: Implement Slab^H^H^H^HUnitHeap

libraries/libstratosphere/source/lmem/lmem_unit_heap.cpp

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2018-2019 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stratosphere.hpp>
+#include "impl/lmem_impl_unit_heap.hpp"
+
+namespace ams::lmem {
+
+    HeapHandle CreateUnitHeap(void *address, size_t size, size_t unit_size, u32 option) {
+        return impl::CreateUnitHeap(address, size, unit_size, DefaultAlignment, static_cast<u16>(option), InfoPlacement_Head, nullptr);
+    }
+
+    HeapHandle CreateUnitHeap(void *address, size_t size, size_t unit_size, u32 option, s32 alignment, InfoPlacement info_placement) {
+        return impl::CreateUnitHeap(address, size, unit_size, alignment, static_cast<u16>(option), info_placement, nullptr);
+    }
+
+    HeapHandle CreateUnitHeap(void *address, size_t size, size_t unit_size, u32 option, s32 alignment, HeapCommonHead *heap_head) {
+        return impl::CreateUnitHeap(address, size, unit_size, alignment, static_cast<u16>(option), InfoPlacement_Head, heap_head);
+    }
+
+    void DestroyUnitHeap(HeapHandle handle) {
+        impl::DestroyUnitHeap(handle);
+    }
+
+    void InvalidateUnitHeap(HeapHandle handle) {
+        impl::ScopedHeapLock lk(handle);
+        impl::InvalidateUnitHeap(handle);
+    }
+
+    void ExtendUnitHeap(HeapHandle handle, size_t size) {
+        impl::ScopedHeapLock lk(handle);
+        impl::ExtendUnitHeap(handle, size);
+    }
+
+    void *AllocateFromUnitHeap(HeapHandle handle) {
+        impl::ScopedHeapLock lk(handle);
+        return impl::AllocateFromUnitHeap(handle);
+    }
+
+    void FreeToUnitHeap(HeapHandle handle, void *block) {
+        impl::ScopedHeapLock lk(handle);
+        impl::FreeToUnitHeap(handle, block);
+    }
+
+    size_t GetUnitHeapUnitSize(HeapHandle handle) {
+        /* Nintendo doesn't acquire a lock here. */
+        return impl::GetUnitHeapUnitSize(handle);
+    }
+
+    s32    GetUnitHeapAlignment(HeapHandle handle) {
+        /* Nintendo doesn't acquire a lock here. */
+        return impl::GetUnitHeapAlignment(handle);
+    }
+
+    size_t GetUnitHeapFreeCount(HeapHandle handle) {
+        impl::ScopedHeapLock lk(handle);
+        return impl::GetUnitHeapFreeCount(handle);
+    }
+
+    size_t GetUnitHeapUsedCount(HeapHandle handle) {
+        impl::ScopedHeapLock lk(handle);
+        return impl::GetUnitHeapUsedCount(handle);
+    }
+
+    size_t GetUnitHeapRequiredSize(size_t unit_size, size_t unit_count, s32 alignment, bool internal_metadata) {
+        return impl::GetUnitHeapRequiredSize(unit_size, unit_count, alignment, internal_metadata);
+    }
+
+}