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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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14
Kernel/MemoryManager.cpp
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@@ -667,14 +667,14 @@ Region::~Region()
MM.unregister_region(*this);
}
RetainPtr<PhysicalPage> PhysicalPage::create_eternal(PhysicalAddress paddr, bool supervisor)
Retained<PhysicalPage> PhysicalPage::create_eternal(PhysicalAddress paddr, bool supervisor)
{
void* slot = kmalloc_eternal(sizeof(PhysicalPage));
new (slot) PhysicalPage(paddr, supervisor);
return adopt(*(PhysicalPage*)slot);
}
RetainPtr<PhysicalPage> PhysicalPage::create(PhysicalAddress paddr, bool supervisor)
Retained<PhysicalPage> PhysicalPage::create(PhysicalAddress paddr, bool supervisor)
{
void* slot = kmalloc(sizeof(PhysicalPage));
new (slot) PhysicalPage(paddr, supervisor, false);
@@ -702,23 +702,23 @@ void PhysicalPage::return_to_freelist()
#endif
}
RetainPtr<VMObject> VMObject::create_file_backed(RetainPtr<Inode>&& inode)
Retained<VMObject> VMObject::create_file_backed(RetainPtr<Inode>&& inode)
{
InterruptDisabler disabler;
if (inode->vmo())
return static_cast<VMObject*>(inode->vmo());
return *inode->vmo();
auto vmo = adopt(*new VMObject(move(inode)));
vmo->inode()->set_vmo(*vmo);
return vmo;
}
RetainPtr<VMObject> VMObject::create_anonymous(size_t size)
Retained<VMObject> VMObject::create_anonymous(size_t size)
{
size = ceil_div(size, PAGE_SIZE) * PAGE_SIZE;
return adopt(*new VMObject(size));
}
RetainPtr<VMObject> VMObject::create_for_physical_range(PhysicalAddress paddr, size_t size)
Retained<VMObject> VMObject::create_for_physical_range(PhysicalAddress paddr, size_t size)
{
size = ceil_div(size, PAGE_SIZE) * PAGE_SIZE;
auto vmo = adopt(*new VMObject(paddr, size));
@@ -726,7 +726,7 @@ RetainPtr<VMObject> VMObject::create_for_physical_range(PhysicalAddress paddr, s
return vmo;
}
RetainPtr<VMObject> VMObject::clone()
Retained<VMObject> VMObject::clone()
{
return adopt(*new VMObject(*this));
}