UNIX环境高级编程的附录(apue.h)

/*没贴成代码形式，因为csdn上代码贴出来好像前面多个#号，这样贴出来便于大家复制*/

/* Our own header, to be included before all standard system headers */

#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 */