apue.h 源码

#ifndef _APUE_H  #define _APUE_H  #define _XOPEN_SOURCE   600  /* Single UNIX Specification, Version 3 */  #include <sys/types.h>       /* some systems still require this */  #include <sys/stat.h>  #include <sys/termios.h>     /* for winsize */  #ifndef TIOCGWINSZ  #include <sys/ioctl.h>  #endif  #include <stdio.h>     /* for convenience */  #include <stdlib.h>    /* for convenience */  #include <stddef.h>    /* for offsetof */  #include <string.h>    /* for convenience */  #include <unistd.h>    /* for convenience */  #include <signal.h>    /* for SIG_ERR */  #define MAXLINE 4096               /* max line length */  /*  * Default file access permissions for new files.  */  #define FILE_MODE   (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)  /*  * Default permissions for new directories.  */  #define DIR_MODE    (FILE_MODE | S_IXUSR | S_IXGRP | S_IXOTH)  typedef void   Sigfunc(int);   /* for signal handlers */  #if defined(SIG_IGN) && !defined(SIG_ERR)  #define SIG_ERR ((Sigfunc *)-1)  #endif  #define min(a,b)     ((a) < (b) ? (a) : (b))  #define max(a,b)     ((a) > (b) ? (a) : (b))  /*  * Prototypes for our own functions.  */  char    *path_alloc(int *);              /* Figure 2.15 */  long     open_max(void);                 /* Figure 2.16 */  void     clr_fl(int, int);               /* Figure 3.11 */  void     set_fl(int, int);               /* Figure 3.11 */  void     pr_exit(int);                   /* Figure 8.5 */  void     pr_mask(const char *);          /* Figure 10.14 */  Sigfunc *signal_intr(int, Sigfunc *);    /* Figure 10.19 */  int      tty_cbreak(int);                /* Figure 18.20 */  int      tty_raw(int);                   /* Figure 18.20 */  int      tty_reset(int);                 /* Figure 18.20 */  void     tty_atexit(void);               /* Figure 18.20 */  #ifdef  ECHO    /* only if <termios.h>  has been included */  struct termios  *tty_termios(void);      /* Figure 18.20 */  #endif  void     sleep_us(unsigned int);             /* Exercise 14.6 */  ssize_t  readn(int, void *, size_t);         /* Figure 14.29 */  ssize_t  writen(int, const void *, size_t);  /* Figure 14.29 */  void     daemonize(const char *);            /* Figure 13.1 */  int      s_pipe(int *);                 /* Figures 17.6 and 17.13 */  int      recv_fd(int, ssize_t (*func)(int,                   const void *, size_t));/* Figures 17.21 and 17.23 */  int      send_fd(int, int);             /* Figures 17.20 and 17.22 */  int      send_err(int, int,                    const char *);        /* Figure 17.19 */  int      serv_listen(const char *);     /* Figures 17.10 and 17.15 */  int      serv_accept(int, uid_t *);     /* Figures 17.11 and 17.16 */  int      cli_conn(const char *);        /* Figures 17.12 and 17.17 */  int      buf_args(char *, int (*func)(int,                    char **));            /* Figure 17.32 */  int      ptym_open(char *, int);    /* Figures 19.8, 19.9, and 19.10 */  int      ptys_open(char *);         /* Figures 19.8, 19.9, and 19.10 */  #ifdef  TIOCGWINSZ  pid_t    pty_fork(int *, char *, int, const struct termios *,                    const struct winsize *);      /* Figure 19.11 */  #endif  int     lock_reg(int, int, int, off_t, int, off_t); /* Figure 14.5 */  #define read_lock(fd, offset, whence, len) \             lock_reg((fd), F_SETLK, F_RDLCK, (offset), (whence), (len))  #define readw_lock(fd, offset, whence, len) \              lock_reg((fd), F_SETLKW, F_RDLCK, (offset), (whence), (len))  #define write_lock(fd, offset, whence, len) \              lock_reg((fd), F_SETLK, F_WRLCK, (offset), (whence), (len))  #define writew_lock(fd, offset, whence, len) \              lock_reg((fd), F_SETLKW, F_WRLCK, (offset), (whence), (len))  #define un_lock(fd, offset, whence, len) \              lock_reg((fd), F_SETLK, F_UNLCK, (offset), (whence), (len))  pid_t   lock_test(int, int, off_t, int, off_t);     /* Figure 14.6 */  #define is_read_lockable(fd, offset, whence, len) \              (lock_test((fd), F_RDLCK, (offset), (whence), (len)) == 0)  #define is_write_lockable(fd, offset, whence, len) \              (lock_test((fd), F_WRLCK, (offset), (whence), (len)) == 0)  void    err_dump(const char *, ...);        /* Appendix B */  void    err_msg(const char *, ...);  void    err_quit(const char *, ...);  void    err_exit(int, const char *, ...);  void    err_ret(const char *, ...);  void    err_sys(const char *, ...);  void    log_msg(const char *, ...);         /* Appendix B */  void    log_open(const char *, int, int);  void    log_quit(const char *, ...);  void    log_ret(const char *, ...);  void    log_sys(const char *, ...);  void    TELL_WAIT(void);        /* parent/child from Section 8.9 */  void    TELL_PARENT(pid_t);  void    TELL_CHILD(pid_t);  void    WAIT_PARENT(void);  void    WAIT_CHILD(void);  #endif  /* _APUE_H */