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Kernel: Make Memory::Region allocation functions return KResultOr
This makes for some nicer handling of errors compared to checking an OwnPtr for null state.
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0a18425cbb
5 changed files with 45 additions and 38 deletions
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@ -49,8 +49,8 @@ public:
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Yes,
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};
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static OwnPtr<Region> try_create_user_accessible(VirtualRange const&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable, bool shared);
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static OwnPtr<Region> try_create_kernel_only(VirtualRange const&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable = Cacheable::Yes);
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static KResultOr<NonnullOwnPtr<Region>> try_create_user_accessible(VirtualRange const&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable, bool shared);
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static KResultOr<NonnullOwnPtr<Region>> try_create_kernel_only(VirtualRange const&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable = Cacheable::Yes);
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~Region();
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@ -90,7 +90,7 @@ public:
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PageFaultResponse handle_fault(PageFault const&);
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OwnPtr<Region> clone();
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KResultOr<NonnullOwnPtr<Region>> try_clone();
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bool contains(VirtualAddress vaddr) const
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{
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