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kern: avoid constexpr init for many objects (avoids unnecessary memory clear) (#1668)

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SciresM 2021-10-23 15:25:20 -07:00 • committed by GitHub
parent 20716cb3de
commit 36e4914be8
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GPG key ID: 4AEE18F83AFDEB23
77 changed files with 489 additions and 339 deletions
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22
libraries/libmesosphere/include/mesosphere/kern_k_session_request.hpp
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@ -33,14 +33,14 @@ namespace ams::kern {
class Mapping {
private:
KProcessAddress m_client_address;
KProcessAddress m_server_address;
uintptr_t m_client_address;
uintptr_t m_server_address;
size_t m_size;
KMemoryState m_state;
public:
constexpr void Set(KProcessAddress c, KProcessAddress s, size_t sz, KMemoryState st) {
m_client_address = c;
m_server_address = s;
m_client_address = GetInteger(c);
m_server_address = GetInteger(s);
m_size = sz;
m_state = st;
}
@ -57,7 +57,9 @@ namespace ams::kern {
u8 m_num_recv;
u8 m_num_exch;
public:
constexpr explicit SessionMappings() : m_static_mappings(), m_mappings(), m_num_send(), m_num_recv(), m_num_exch() { /* ... */ }
constexpr explicit SessionMappings(util::ConstantInitializeTag) : m_static_mappings(), m_mappings(), m_num_send(), m_num_recv(), m_num_exch() { /* ... */ }
explicit SessionMappings() : m_mappings(nullptr), m_num_send(), m_num_recv(), m_num_exch() { /* ... */ }
void Initialize() { /* ... */ }
void Finalize();
@ -119,8 +121,6 @@ namespace ams::kern {
return m_mappings[index - NumStaticMappings];
}
}
};
private:
SessionMappings m_mappings;
@ -130,11 +130,13 @@ namespace ams::kern {
uintptr_t m_address;
size_t m_size;
public:
constexpr KSessionRequest() : m_mappings(), m_thread(), m_server(), m_event(), m_address(), m_size() { /* ... */ }
constexpr explicit KSessionRequest(util::ConstantInitializeTag) : KAutoObject(util::ConstantInitialize), m_mappings(util::ConstantInitialize), m_thread(), m_server(), m_event(), m_address(), m_size() { /* ... */ }
explicit KSessionRequest() : m_thread(nullptr), m_server(nullptr), m_event(nullptr) { /* ... */ }
static KSessionRequest *Create() {
KSessionRequest *req = KSessionRequest::Allocate();
if (req != nullptr) {
if (AMS_LIKELY(req != nullptr)) {
KAutoObject::Create(req);
}
return req;
@ -142,7 +144,7 @@ namespace ams::kern {
static KSessionRequest *CreateFromUnusedSlabMemory() {
KSessionRequest *req = KSessionRequest::AllocateFromUnusedSlabMemory();
if (req != nullptr) {
if (AMS_LIKELY(req != nullptr)) {
KAutoObject::Create(req);
}
return req;