#pragma once
// ke_userenv.h - kernel view of the user-mode process/thread environment.
// This is this OS' ABI, not a Windows compatibility structure.

#include <stdint.h>
#include <stddef.h>
#include <sys_string.h>

#define SYS_PEB_MAGIC   0x30424550u  /* "PEB0" */
#define SYS_TEB_MAGIC   0x30424554u  /* "TEB0" */
#define SYS_ENV_VERSION 1u
#define SYS_CWD_MAX     520u

#ifndef SYS_USER_ENV_TYPES_DEFINED
#define SYS_USER_ENV_TYPES_DEFINED 1

typedef struct SYS_PEB {
    uint32_t Magic;
    uint32_t Version;
    uint32_t ProcessId;

    SYS_STRING_VIEW ImagePath;
    SYS_STRING_VIEW CommandLine;
    SYS_STRING_VIEW CurrentDirectory;
} SYS_PEB;

typedef struct SYS_TEB {
    SYS_PEB*        Peb;
    void*           StackBase;
    void*           StackLimit;
    struct SYS_TEB* Self;
    uint32_t        ThreadId;
    uint32_t        Magic;

    // Native per-thread extension pointer.  The kernel leaves this NULL;
    // user-mode personalities/libraries may hang their own thread-local
    // state here without baking subsystem semantics into SYS_TEB.
    void*           SubsystemData;
} SYS_TEB;

#endif // SYS_USER_ENV_TYPES_DEFINED