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