import t, c from stdint import * # ============================================================================= # POSIX 类型别名 # 注意：ssize_t 已在 stdint.py 中定义为 t.CPtrDiffT，此处不再重复 # ============================================================================= DIR: t.CTypedef = t.CVoid | t.CPtr # 不透明目录流句柄 mode_t: t.CTypedef = t.CUInt32T # 文件模式/权限位 pid_t: t.CTypedef = t.CInt32T # 进程 ID off_t: t.CTypedef = t.CInt64T # 文件偏移量（Linux x86_64） dev_t: t.CTypedef = t.CUInt64T # 设备号 ino_t: t.CTypedef = t.CUInt64T # inode 号 nlink_t: t.CTypedef = t.CUInt64T # 硬链接数 uid_t: t.CTypedef = t.CUInt32T # 用户 ID gid_t: t.CTypedef = t.CUInt32T # 组 ID blksize_t: t.CTypedef = t.CInt64T # 文件系统 I/O 块大小 blkcnt_t: t.CTypedef = t.CInt64T # 已分配块数 time_t: t.CTypedef = t.CInt64T # 日历时间秒数 # ============================================================================= # open() 标志位 # ============================================================================= O_RDONLY: t.CDefine = 0 O_WRONLY: t.CDefine = 1 O_RDWR: t.CDefine = 2 O_CREAT: t.CDefine = 0o100 O_EXCL: t.CDefine = 0o200 O_TRUNC: t.CDefine = 0o1000 O_APPEND: t.CDefine = 0o2000 O_NONBLOCK: t.CDefine = 0o4000 O_CLOEXEC: t.CDefine = 0o2000000 # ============================================================================= # access() 测试标志 # ============================================================================= F_OK: t.CDefine = 0 # 文件存在 R_OK: t.CDefine = 4 # 可读 W_OK: t.CDefine = 2 # 可写 X_OK: t.CDefine = 1 # 可执行 # ============================================================================= # stat 结构体的 st_mode 掩码与类型位 # ============================================================================= S_IFMT: t.CDefine = 0o170000 # 类型掩码 S_IFSOCK: t.CDefine = 0o140000 # 套接字 S_IFLNK: t.CDefine = 0o120000 # 符号链接 S_IFREG: t.CDefine = 0o100000 # 普通文件 S_IFBLK: t.CDefine = 0o060000 # 块设备 S_IFDIR: t.CDefine = 0o040000 # 目录 S_IFCHR: t.CDefine = 0o020000 # 字符设备 S_IFIFO: t.CDefine = 0o010000 # FIFO/管道 # 权限位 S_ISUID: t.CDefine = 0o4000 # set-user-ID S_ISGID: t.CDefine = 0o2000 # set-group-ID S_ISVTX: t.CDefine = 0o1000 # sticky 位 S_IRWXU: t.CDefine = 0o700 # 用户读写执行 S_IRUSR: t.CDefine = 0o400 # 用户读 S_IWUSR: t.CDefine = 0o200 # 用户写 S_IXUSR: t.CDefine = 0o100 # 用户执行 S_IRWXG: t.CDefine = 0o070 # 组读写执行 S_IRGRP: t.CDefine = 0o040 # 组读 S_IWGRP: t.CDefine = 0o020 # 组写 S_IXGRP: t.CDefine = 0o010 # 组执行 S_IRWXO: t.CDefine = 0o007 # 其他读写执行 S_IROTH: t.CDefine = 0o004 # 其他读 S_IWOTH: t.CDefine = 0o002 # 其他写 S_IXOTH: t.CDefine = 0o001 # 其他执行 # ============================================================================= # lseek() whence 值 # ============================================================================= SEEK_SET: t.CDefine = 0 SEEK_CUR: t.CDefine = 1 SEEK_END: t.CDefine = 2 # ============================================================================= # 路径/名称长度限制 # ============================================================================= PATH_MAX: t.CDefine = 4096 NAME_MAX: t.CDefine = 255 # ============================================================================= # sysconf() 参数 # ============================================================================= _SC_NPROCESSORS_ONLN: t.CDefine = 84 _SC_PAGESIZE: t.CDefine = 30 _SC_CLK_TCK: t.CDefine = 2 # ============================================================================= # dirent 结构体的 d_type 值 # ============================================================================= DT_UNKNOWN: t.CDefine = 0 DT_FIFO: t.CDefine = 1 DT_CHR: t.CDefine = 2 DT_DIR: t.CDefine = 4 DT_BLK: t.CDefine = 6 DT_REG: t.CDefine = 8 DT_LNK: t.CDefine = 10 DT_SOCK: t.CDefine = 12 DT_WHT: t.CDefine = 14 # ============================================================================= # waitpid() 选项 # ============================================================================= WNOHANG: t.CDefine = 1 WUNTRACED: t.CDefine = 2 WCONTINUED: t.CDefine = 8 # ============================================================================= # 结构体：Linux x86_64 布局 # ============================================================================= # struct stat（144 字节，Linux x86_64 glibc 布局） # 注意：st_atim/st_mtim/st_ctim 在 C 中是 struct timespec { tv_sec; tv_nsec; } # 此处拆分为 _sec/_nsec 两个 LONGLONG 字段以保持二进制兼容 class Stat(): st_dev: dev_t # @ 0 st_ino: ino_t # @ 8 st_nlink: nlink_t # @ 16 st_mode: mode_t # @ 24 st_uid: uid_t # @ 28 st_gid: gid_t # @ 32 __pad0: INT # @ 36 st_rdev: dev_t # @ 40 st_size: off_t # @ 48 st_blksize: blksize_t # @ 56 st_blocks: blkcnt_t # @ 64 st_atim_sec: time_t # @ 72 st_atim_nsec: LONGLONG # @ 80 st_mtim_sec: time_t # @ 88 st_mtim_nsec: LONGLONG # @ 96 st_ctim_sec: time_t # @ 104 st_ctim_nsec: LONGLONG # @ 112 __unused0: LONGLONG # @ 120 __unused1: LONGLONG # @ 128 __unused2: LONGLONG # @ 136 # struct dirent（Linux x86_64，d_name 为 char[256]） # 注意：d_name 实际是定长 char[256]，TransPyC 用 CHARPTR 占位（8 字节）。 # 用户通常通过 readdir 返回的只读指针访问，不直接分配 Dirent 结构体。 class Dirent(): d_ino: ino_t # @ 0 d_off: off_t # @ 8 d_reclen: USHORT # @ 16 d_type: BYTE # @ 18 d_name: CHARPTR # @ 19（实际为 char[256]，此处占位） # ============================================================================= # 文件操作函数（10 个） # ============================================================================= def open(path: t.CConst | str, oflag: INT, *args) -> INT | t.State: pass def close(fd: INT) -> INT | t.State: pass def read(fd: INT, buf: bytes, count: t.CSizeT) -> ssize_t | t.State: pass def write(fd: INT, buf: t.CConst | bytes, count: t.CSizeT) -> ssize_t | t.State: pass def lseek(fd: INT, offset: off_t, whence: INT) -> off_t | t.State: pass def unlink(path: t.CConst | str) -> INT | t.State: pass def access(path: t.CConst | str, amode: INT) -> INT | t.State: pass def realpath(path: t.CConst | str, resolved: CHARPTR) -> CHARPTR | t.State: pass def rename(oldpath: t.CConst | str, newpath: t.CConst | str) -> INT | t.State: pass def chmod(path: t.CConst | str, mode: mode_t) -> INT | t.State: pass # ============================================================================= # stat 系列（2 个） # ============================================================================= def stat(path: t.CConst | str, buf: Stat | t.CPtr) -> INT | t.State: pass def fstat(fd: INT, buf: Stat | t.CPtr) -> INT | t.State: pass # ============================================================================= # 目录操作（6 个） # ============================================================================= def opendir(name: t.CConst | str) -> DIR | t.CPtr | t.State: pass def readdir(dirp: DIR | t.CPtr) -> Dirent | t.CPtr | t.State: pass def closedir(dirp: DIR | t.CPtr) -> INT | t.State: pass def mkdir(path: t.CConst | str, mode: mode_t) -> INT | t.State: pass def rmdir(path: t.CConst | str) -> INT | t.State: pass def getcwd(buf: CHARPTR, size: t.CSizeT) -> CHARPTR | t.State: pass def chdir(path: t.CConst | str) -> INT | t.State: pass # ============================================================================= # 进程/管道（8 个） # ============================================================================= def fork() -> pid_t | t.State: pass def execvp(file: t.CConst | str, argv: CHARPTR | t.CPtr) -> INT | t.State: pass def execv(path: t.CConst | str, argv: CHARPTR | t.CPtr) -> INT | t.State: pass def waitpid(pid: pid_t, status: INT | t.CPtr, options: INT) -> pid_t | t.State: pass def pipe(fds: INT | t.CPtr) -> INT | t.State: pass def dup2(oldfd: INT, newfd: INT) -> INT | t.State: pass def _exit(status: INT) -> t.CVoid | t.State: pass def getpid() -> pid_t | t.State: pass # ============================================================================= # 环境/系统（4 个） # ============================================================================= def getenv(name: t.CConst | str) -> CHARPTR | t.State: pass def setenv(name: t.CConst | str, value: t.CConst | str, overwrite: INT) -> INT | t.State: pass def sysconf(name: INT) -> LONG | t.State: pass def isatty(fd: INT) -> INT | t.State: pass # ============================================================================= # 内联宏（C 宏，用 TransPyC 普通函数实现，不标记 t.CExtern） # ============================================================================= # st_mode 类型判定 def S_ISREG(mode: mode_t) -> bool: return (mode & S_IFMT) == S_IFREG def S_ISDIR(mode: mode_t) -> bool: return (mode & S_IFMT) == S_IFDIR def S_ISLNK(mode: mode_t) -> bool: return (mode & S_IFMT) == S_IFLNK def S_ISCHR(mode: mode_t) -> bool: return (mode & S_IFMT) == S_IFCHR def S_ISBLK(mode: mode_t) -> bool: return (mode & S_IFMT) == S_IFBLK def S_ISFIFO(mode: mode_t) -> bool: return (mode & S_IFMT) == S_IFIFO def S_ISSOCK(mode: mode_t) -> bool: return (mode & S_IFMT) == S_IFSOCK # waitpid 状态解析 def WIFEXITED(status: INT) -> bool: return (status & 0x7F) == 0 def WEXITSTATUS(status: INT) -> INT: return (status >> 8) & 0xFF def WIFSIGNALED(status: INT) -> bool: return ((status & 0x7F) != 0) and ((status & 0x7F) != 0x7F) def WTERMSIG(status: INT) -> INT: return status & 0x7F