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Kernel: Tweak some String&& => const String&.

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String&& is just not very practical. Also return const String& when the
returned string is a member variable. The call site is free to make a copy
if he wants, but otherwise we can avoid the retain count churn.
This commit is contained in:
Andreas Kling 2019-06-07 20:58:12 +02:00
parent 736092a087
commit de65c960e9
7 changed files with 23 additions and 23 deletions
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12
Kernel/VM/Region.cpp
View file

@ -4,10 +4,10 @@
#include <Kernel/VM/Region.h>
#include <Kernel/VM/VMObject.h>
Region::Region(const Range& range, String&& n, byte access, bool cow)
Region::Region(const Range& range, const String& name, byte access, bool cow)
: m_range(range)
, m_vmo(VMObject::create_anonymous(size()))
, m_name(move(n))
, m_name(name)
, m_access(access)
, m_cow_map(Bitmap::create(m_vmo->page_count(), cow))
{
@ -15,21 +15,21 @@ Region::Region(const Range& range, String&& n, byte access, bool cow)
MM.register_region(*this);
}
Region::Region(const Range& range, RetainPtr<Inode>&& inode, String&& n, byte access)
Region::Region(const Range& range, RetainPtr<Inode>&& inode, const String& name, byte access)
: m_range(range)
, m_vmo(VMObject::create_file_backed(move(inode)))
, m_name(move(n))
, m_name(name)
, m_access(access)
, m_cow_map(Bitmap::create(m_vmo->page_count()))
{
MM.register_region(*this);
}
Region::Region(const Range& range, Retained<VMObject>&& vmo, size_t offset_in_vmo, String&& n, byte access, bool cow)
Region::Region(const Range& range, Retained<VMObject>&& vmo, size_t offset_in_vmo, const String& name, byte access, bool cow)
: m_range(range)
, m_offset_in_vmo(offset_in_vmo)
, m_vmo(move(vmo))
, m_name(move(n))
, m_name(name)
, m_access(access)
, m_cow_map(Bitmap::create(m_vmo->page_count(), cow))
{

10
Kernel/VM/Region.h
View file

@ -18,9 +18,9 @@ public:
Execute = 4,
};
Region(const Range&, String&&, byte access, bool cow = false);
Region(const Range&, Retained<VMObject>&&, size_t offset_in_vmo, String&&, byte access, bool cow = false);
Region(const Range&, RetainPtr<Inode>&&, String&&, byte access);
Region(const Range&, const String&, byte access, bool cow = false);
Region(const Range&, Retained<VMObject>&&, size_t offset_in_vmo, const String&, byte access, bool cow = false);
Region(const Range&, RetainPtr<Inode>&&, const String&, byte access);
~Region();
VirtualAddress vaddr() const { return m_range.base(); }
@ -28,9 +28,9 @@ public:
bool is_readable() const { return m_access & Access::Read; }
bool is_writable() const { return m_access & Access::Write; }
bool is_executable() const { return m_access & Access::Execute; }
String name() const { return m_name; }
const String& name() const { return m_name; }
void set_name(String&& name) { m_name = move(name); }
void set_name(const String& name) { m_name = name; }
const VMObject& vmo() const { return *m_vmo; }
VMObject& vmo() { return *m_vmo; }

2
Kernel/VM/VMObject.h
View file

@ -30,7 +30,7 @@ public:
const Inode* inode() const { return m_inode.ptr(); }
size_t inode_offset() const { return m_inode_offset; }
String name() const { return m_name; }
const String& name() const { return m_name; }
void set_name(const String& name) { m_name = name; }
size_t page_count() const { return m_size / PAGE_SIZE; }