Basic console API & API registry implementation

5 files changed, 39 insertions, 3 deletions

diff --git a/deimos/core/BUILD b/deimos/core/BUILD
index cb76f90..2f0dc2d 100644
--- a/deimos/core/BUILD
+++ b/deimos/core/BUILD
@@ -6,10 +6,12 @@ cc_library(
         "base.h",

         "hash.h",

         "id_name.h",

+        "os.h",

     ],

     srcs = [

         "allocator.cpp",

         "api_registry.cpp",

+        "os_win32.cpp",

     ],

     visibility = ["//:__subpackages__"],

 )

diff --git a/deimos/core/api_registry.cpp b/deimos/core/api_registry.cpp
index 873d72d..1489484 100644
--- a/deimos/core/api_registry.cpp
+++ b/deimos/core/api_registry.cpp
@@ -7,6 +7,7 @@ namespace deimos
 {

 

 AllocatorApi* BootstrapAllocatorApi();

+void RegisterOsApi(ApiRegistry*);

 

 struct ApiEntry

 {

@@ -22,6 +23,7 @@ struct ApiEntry
 class ApiRegistryImpl: public ApiRegistry

 {

     Allocator* m_allocator;

+    const ApiEntry* m_head{};

 

 public:

     explicit ApiRegistryImpl(Allocator* allocator) :

@@ -30,9 +32,17 @@ public:
 

     void Set(const IdName& name, void* impl) final

     {

-        (void)name;

-        (void)impl;

-        (void)m_allocator;

+        auto* entry = m_allocator->New<ApiEntry>(name, impl);

+        entry->next = std::exchange(m_head, entry);

+    }

+

+    void* Get(const IdName& name) final

+    {

+        for (const ApiEntry* it = m_head; it != nullptr; it = it->next)

+        {

+            if (it->name == name) { return it->impl; }

+        }

+        return nullptr;

     }

 };

 

@@ -45,6 +55,8 @@ ApiRegistry* InitializeGlobalApiRegistry()
 

     api_registry->Set(g_allocator_api);

 

+    RegisterOsApi(api_registry);

+

     return api_registry;

 }

 

diff --git a/deimos/core/api_registry.h b/deimos/core/api_registry.h
index 2624935..f2f850a 100644
--- a/deimos/core/api_registry.h
+++ b/deimos/core/api_registry.h
@@ -15,9 +15,16 @@ public:
 

     virtual ~ApiRegistry() = default;

 

+    virtual void* Get(const IdName&) = 0;

     virtual void Set(const IdName&, void* impl) = 0;

 

     template<typename Api>

+    Api* Get()

+    {

+        return (Api*)Get(Api::kApiName);

+    }

+

+    template<typename Api>

     void Set(Api* impl)

     {

         Set(Api::kApiName, impl);

diff --git a/deimos/core/base.h b/deimos/core/base.h
index ea14610..0669f07 100644
--- a/deimos/core/base.h
+++ b/deimos/core/base.h
@@ -46,6 +46,8 @@ struct uint128
 {

     uint64 high;

     uint64 low;

+

+    constexpr bool operator==(const uint128& other) const = default;

 };

 

 struct SourceLocation

@@ -96,5 +98,13 @@ constexpr T&& forward(deimos::RemoveReference<T>&& t) noexcept // NOLINT
     return static_cast<T&&>(t);

 }

 

+template<typename T, typename U = T>

+constexpr T exchange(T& obj, U&& new_value)

+{

+    T old_value = std::move(obj);

+    obj = std::forward<U>(new_value);

+    return old_value;

+}

+

 } // namespace std

 

diff --git a/deimos/core/id_name.h b/deimos/core/id_name.h
index 0fb793b..47e7708 100644
--- a/deimos/core/id_name.h
+++ b/deimos/core/id_name.h
@@ -15,6 +15,11 @@ struct IdName
         hash{MurmurHash3_x64_128(name_)},

         name{name_}

     {}

+

+    constexpr bool operator==(const IdName& other) const

+    {

+        return hash == other.hash;

+    }

 };

 

 } // namespace deimos