reorganizing os

code/os/win32/os_win32.h

@@ -0,0 +1,122 @@
+// Copyright (c) 2024 Epic Games Tools
+// Licensed under the MIT license (https://opensource.org/license/mit/)
+
+#ifndef OS_CORE_WIN32_H
+#define OS_CORE_WIN32_H
+
+////////////////////////////////
+//~ rjf: Includes / Libraries
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <windowsx.h>
+#include <timeapi.h>
+#include <tlhelp32.h>
+#include <Shlobj.h>
+#include <processthreadsapi.h>
+#pragma comment(lib, "user32")
+#pragma comment(lib, "winmm")
+#pragma comment(lib, "shell32")
+#pragma comment(lib, "advapi32")
+#pragma comment(lib, "rpcrt4")
+#pragma comment(lib, "shlwapi")
+#pragma comment(lib, "comctl32")
+#pragma comment(linker,"\"/manifestdependency:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"") // this is required for loading correct comctl32 dll file
+
+////////////////////////////////
+//~ rjf: File Iterator Types
+
+typedef struct OS_W32_FileIter OS_W32_FileIter;
+struct OS_W32_FileIter
+{
+  HANDLE handle;
+  WIN32_FIND_DATAW find_data;
+  B32 is_volume_iter;
+  String8Array drive_strings;
+  U64 drive_strings_iter_idx;
+};
+StaticAssert(sizeof(Member(OS_FileIter, memory)) >= sizeof(OS_W32_FileIter), file_iter_memory_size);
+
+////////////////////////////////
+//~ rjf: Entity Types
+
+typedef enum OS_W32_EntityKind
+{
+  OS_W32_EntityKind_Null,
+  OS_W32_EntityKind_Thread,
+  OS_W32_EntityKind_Mutex,
+  OS_W32_EntityKind_RWMutex,
+  OS_W32_EntityKind_ConditionVariable,
+}
+OS_W32_EntityKind;
+
+typedef struct OS_W32_Entity OS_W32_Entity;
+struct OS_W32_Entity
+{
+  OS_W32_Entity *next;
+  OS_W32_EntityKind kind;
+  union
+  {
+    struct
+    {
+      OS_ThreadFunctionType *func;
+      void *ptr;
+      HANDLE handle;
+      DWORD tid;
+    } thread;
+    CRITICAL_SECTION mutex;
+    SRWLOCK rw_mutex;
+    CONDITION_VARIABLE cv;
+  };
+};
+
+////////////////////////////////
+//~ rjf: State
+
+typedef struct OS_W32_State OS_W32_State;
+struct OS_W32_State
+{
+  Arena *arena;
+  
+  // rjf: info
+  OS_SystemInfo system_info;
+  OS_ProcessInfo process_info;
+  U64 microsecond_resolution;
+  
+  // rjf: entity storage
+  CRITICAL_SECTION entity_mutex;
+  Arena *entity_arena;
+  OS_W32_Entity *entity_free;
+};
+
+////////////////////////////////
+//~ rjf: Globals
+
+global OS_W32_State os_w32_state = {0};
+
+////////////////////////////////
+//~ rjf: File Info Conversion Helpers
+
+internal FilePropertyFlags os_w32_file_property_flags_from_dwFileAttributes(DWORD dwFileAttributes);
+internal void os_w32_file_properties_from_attribute_data(FileProperties *properties, WIN32_FILE_ATTRIBUTE_DATA *attributes);
+
+////////////////////////////////
+//~ rjf: Time Conversion Helpers
+
+internal void os_w32_date_time_from_system_time(DateTime *out, SYSTEMTIME *in);
+internal void os_w32_system_time_from_date_time(SYSTEMTIME *out, DateTime *in);
+internal void os_w32_dense_time_from_file_time(DenseTime *out, FILETIME *in);
+internal U32 os_w32_sleep_ms_from_endt_us(U64 endt_us);
+
+////////////////////////////////
+//~ rjf: Entity Functions
+
+internal OS_W32_Entity *os_w32_entity_alloc(OS_W32_EntityKind kind);
+internal void os_w32_entity_release(OS_W32_Entity *entity);
+
+////////////////////////////////
+//~ rjf: Thread Entry Point
+
+internal DWORD os_w32_thread_entry_point(void *ptr);
+
+#endif // OS_CORE_WIN32_H