////////////////////////////////
//~ File types

typedef i32 OS_FileFlag; enum
{
    OS_FileFlag_None   = 0,
    OS_FileFlag_Read   = (1 << 0),
    OS_FileFlag_Write  = (1 << 1),
    OS_FileFlag_Create = (1 << 2),
    OS_FileFlag_NoWait = (1 << 3)
};

Struct(OS_File)
{
    u64 handle;
};

////////////////////////////////
//~ Command types

Struct(OS_CommandResult)
{
    i32 code;
    String output;
};

////////////////////////////////
//~ @hookdecl Startup hooks

void OS_Startup(void);

////////////////////////////////
//~ @hookdecl File system operations

OS_File OS_OpenFile(String path, OS_FileFlag flags);
void OS_CloseFile(OS_File file);
String OS_ReadEntireFile(Arena *arena, OS_File file);
void OS_ClearWriteFile(OS_File file, String data);
void OS_DirContentsFromFullPath(Arena *arena, StringList *list, String path);
String OS_GetFullPath(Arena *arena, String path);
b32 OS_FileOrDirExists(String path);
b32 OS_FileExists(String path);
b32 OS_DirExists(String path);

////////////////////////////////
//~ @hookdecl Directory helpers

void OS_Mkdir(String path);

////////////////////////////////
//~ @hookdecl Shell operations

OS_CommandResult OS_RunCommand(Arena *arena, String cmd);