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AK: Add Retained<T>, like RetainPtr, but never null.

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Also use some Clang attribute wizardry to get a warning for use-after-move.
This commit is contained in:
Andreas Kling 2019-02-25 12:43:52 +01:00
parent 0b957ed2b1
commit 2cfcbdc735
31 changed files with 214 additions and 104 deletions
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16
Kernel/MemoryManager.h
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@ -48,8 +48,8 @@ public:
}
}
static RetainPtr<PhysicalPage> create_eternal(PhysicalAddress, bool supervisor);
static RetainPtr<PhysicalPage> create(PhysicalAddress, bool supervisor);
static Retained<PhysicalPage> create_eternal(PhysicalAddress, bool supervisor);
static Retained<PhysicalPage> create(PhysicalAddress, bool supervisor);
unsigned short retain_count() const { return m_retain_count; }
@ -68,8 +68,8 @@ private:
class PageDirectory : public Retainable<PageDirectory> {
friend class MemoryManager;
public:
static RetainPtr<PageDirectory> create() { return adopt(*new PageDirectory); }
static RetainPtr<PageDirectory> create_at_fixed_address(PhysicalAddress paddr) { return adopt(*new PageDirectory(paddr)); }
static Retained<PageDirectory> create() { return adopt(*new PageDirectory); }
static Retained<PageDirectory> create_at_fixed_address(PhysicalAddress paddr) { return adopt(*new PageDirectory(paddr)); }
~PageDirectory();
dword cr3() const { return m_directory_page->paddr().get(); }
@ -88,10 +88,10 @@ private:
class VMObject : public Retainable<VMObject>, public Weakable<VMObject> {
friend class MemoryManager;
public:
static RetainPtr<VMObject> create_file_backed(RetainPtr<Inode>&&);
static RetainPtr<VMObject> create_anonymous(size_t);
static RetainPtr<VMObject> create_for_physical_range(PhysicalAddress, size_t);
RetainPtr<VMObject> clone();
static Retained<VMObject> create_file_backed(RetainPtr<Inode>&&);
static Retained<VMObject> create_anonymous(size_t);
static Retained<VMObject> create_for_physical_range(PhysicalAddress, size_t);
Retained<VMObject> clone();
~VMObject();
bool is_anonymous() const { return m_anonymous; }